/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
 * Use is subject to license terms.
 *
 * Copyright 2019 RackTop Systems.
 */

/*
 *      read.c
 *
 *      This file contains the makefile reader.
 */

/*
 * Included files
 */
#include <mk/defs.h>
#include <mksh/dosys.h>         /* sh_command2string() */
#include <mksh/macro.h>         /* expand_value() */
#include <mksh/misc.h>          /* retmem() */
#include <stdarg.h>             /* va_list, va_start(), va_end() */
#include <libintl.h>

/*
 * Defined macros
 */

/*
 * typedefs & structs
 */

/*
 * Static variables
 */
static  Boolean         built_last_make_run_seen;

/*
 * File table of contents
 */
static  Name_vector     enter_member_name(wchar_t *lib_start, wchar_t *member_start, wchar_t *string_end, Name_vector current_names, Name_vector *extra_names);
extern  Name            normalize_name(wchar_t *name_string, int length);
static  void            read_suffixes_list(Name_vector depes);
static  void            make_relative(wchar_t *to, wchar_t *result);
static  void            print_rule(Cmd_line command);
static  void            sh_transform(Name *name, Name *value);


/*
 *      enter_name(string, tail_present, string_start, string_end,
 *            current_names, extra_names, target_group_seen)
 *
 *      Take one string and enter it as a name. The string is passed in
 *      two parts. A make string and possibly a C string to append to it.
 *      The result is stuffed in the vector current_names.
 *      extra_names points to a vector that is used if current_names overflows.
 *      This is allocad in the calling routine.
 *      Here we handle the "lib.a[members]" notation.
 *
 *      Return value:
 *                              The name vector that was used
 *
 *      Parameters:
 *              tail_present    Indicates if both C and make string was passed
 *              string_start    C string
 *              string_end      Pointer to char after last in C string
 *              string          make style string with head of name
 *              current_names   Vector to deposit the name in
 *              extra_names     Where to get next name vector if we run out
 *              target_group_seen Pointer to boolean that is set if "+" is seen
 *
 *      Global variables used:
 *              makefile_type   When we read a report file we normalize paths
 *              plus            Points to the Name "+"
 */

Name_vector
enter_name(String string, Boolean tail_present, wchar_t *string_start, wchar_t *string_end, Name_vector current_names, Name_vector *extra_names, Boolean *target_group_seen)
{
        Name                    name;
        wchar_t *cp;
        wchar_t                 ch;

        /* If we were passed a separate tail of the name we append it to the */
        /* make string with the rest of it */
        if (tail_present) {
                append_string(string_start, string, string_end - string_start);
                string_start = string->buffer.start;
                string_end = string->text.p;
        }
        ch = *string_end;
        *string_end = (int) nul_char;
        /*
         * Check if there are any ( or [ that are not prefixed with $.
         * If there are, we have to deal with the lib.a(members) format.
         */
        for (cp = (wchar_t *) wcschr(string_start, (int) parenleft_char);
             cp != NULL;
             cp = (wchar_t *) wcschr(cp + 1, (int) parenleft_char)) {
                if (*(cp - 1) != (int) dollar_char) {
                        *string_end = ch;
                        return enter_member_name(string_start,
                                                 cp,
                                                 string_end,
                                                 current_names,
                                                 extra_names);
                }
        }
        *string_end = ch;

        if (makefile_type == reading_cpp_file) {
                /* Remove extra ../ constructs if we are reading from a report file */
                name = normalize_name(string_start, string_end - string_start);
        } else {
                /*
                 * /tolik, fix bug 1197477/
                 * Normalize every target name before entering.
                 * ..//obj/a.o and ../obj//a.o are not two different targets.
                 * There is only one target ../obj/a.o
                 */
                /*name = GETNAME(string_start, string_end - string_start);*/
                name = normalize_name(string_start, string_end - string_start);
        }

        /* Internalize the name. Detect the name "+" (target group here) */
if(current_names->used != 0 && current_names->names[current_names->used-1] == plus) {
        if(name == plus) {
                return current_names;
        }
}
        /* If the current_names vector is full we patch in the one from */
        /* extra_names */
        if (current_names->used == VSIZEOF(current_names->names)) {
                if (current_names->next != NULL) {
                        current_names = current_names->next;
                } else {
                        current_names->next = *extra_names;
                        *extra_names = NULL;
                        current_names = current_names->next;
                        current_names->used = 0;
                        current_names->next = NULL;
                }
        }
        current_names->target_group[current_names->used] = NULL;
        current_names->names[current_names->used++] = name;
        if (name == plus) {
                *target_group_seen = true;
        }
        if (tail_present && string->free_after_use) {
                retmem(string->buffer.start);
        }
        return current_names;
}

/*
 *      enter_member_name(lib_start, member_start, string_end,
 *                current_names, extra_names)
 *
 *      A string has been found to contain member names.
 *      (The "lib.a[members]" and "lib.a(members)" notation)
 *      Handle it pretty much as enter_name() does for simple names.
 *
 *      Return value:
 *                              The name vector that was used
 *
 *      Parameters:
 *              lib_start       Points to the of start of "lib.a(member.o)"
 *              member_start    Points to "member.o" from above string.
 *              string_end      Points to char after last of above string.
 *              current_names   Vector to deposit the name in
 *              extra_names     Where to get next name vector if we run out
 *
 *      Global variables used:
 */
static Name_vector
enter_member_name(wchar_t *lib_start, wchar_t *member_start, wchar_t *string_end, Name_vector current_names, Name_vector *extra_names)
{
        Boolean entry = false;
        wchar_t                 buffer[STRING_BUFFER_LENGTH];
        Name                    lib;
        Name                    member;
        Name                    name;
        Property                prop;
        wchar_t                 *memberp;
        wchar_t                 *q;
        int             paren_count;
        Boolean has_dollar;
        wchar_t *cq;
        Name                    long_member_name = NULL;

        /* Internalize the name of the library */
        lib = GETNAME(lib_start, member_start - lib_start);
        lib->is_member = true;
        member_start++;
        if (*member_start == (int) parenleft_char) {
                /* This is really the "lib.a((entries))" format */
                entry = true;
                member_start++;
        }
        /* Move the library name to the buffer where we intend to build the */
        /* "lib.a(member)" for each member */
        (void) wcsncpy(buffer, lib_start, member_start - lib_start);
        memberp = buffer + (member_start-lib_start);
        while (1) {
                long_member_name = NULL;
                /* Skip leading spaces */
                for (;
                     (member_start < string_end) && iswspace(*member_start);
                     member_start++);
                /* Find the end of the member name. Allow nested (). Detect $*/
                for (cq = memberp, has_dollar = false, paren_count = 0;
                     (member_start < string_end) &&
                     ((*member_start != (int) parenright_char) ||
                      (paren_count > 0)) &&
                     !iswspace(*member_start);
                     *cq++ = *member_start++) {
                        switch (*member_start) {
                        case parenleft_char:
                                paren_count++;
                                break;
                        case parenright_char:
                                paren_count--;
                                break;
                        case dollar_char:
                                has_dollar = true;
                        }
                }
                /* Internalize the member name */
                member = GETNAME(memberp, cq - memberp);
                *cq = 0;
                if ((q = (wchar_t *) wcsrchr(memberp, (int) slash_char)) == NULL) {
                        q = memberp;
                }
                if ((cq - q > (int) ar_member_name_len) &&
                    !has_dollar) {
                        *cq++ = (int) parenright_char;
                        if (entry) {
                                *cq++ = (int) parenright_char;
                        }
                        long_member_name = GETNAME(buffer, cq - buffer);
                        cq = q + (int) ar_member_name_len;
                }
                *cq++ = (int) parenright_char;
                if (entry) {
                        *cq++ = (int) parenright_char;
                }
                /* Internalize the "lib.a(member)" notation for this member */
                name = GETNAME(buffer, cq - buffer);
                name->is_member = lib->is_member;
                if (long_member_name != NULL) {
                        prop = append_prop(name, long_member_name_prop);
                        name->has_long_member_name = true;
                        prop->body.long_member_name.member_name =
                          long_member_name;
                }
                /* And add the member prop */
                prop = append_prop(name, member_prop);
                prop->body.member.library = lib;
                if (entry) {
                        /* "lib.a((entry))" notation */
                        prop->body.member.entry = member;
                        prop->body.member.member = NULL;
                } else {
                        /* "lib.a(member)" Notation */
                        prop->body.member.entry = NULL;
                        prop->body.member.member = member;
                }
                /* Handle overflow of current_names */
                if (current_names->used == VSIZEOF(current_names->names)) {
                        if (current_names->next != NULL) {
                                current_names = current_names->next;
                        } else {
                                if (*extra_names == NULL) {
                                        current_names =
                                          current_names->next =
                                            ALLOC(Name_vector);
                                } else {
                                        current_names =
                                          current_names->next =
                                            *extra_names;
                                        *extra_names = NULL;
                                }
                                current_names->used = 0;
                                current_names->next = NULL;
                        }
                }
                current_names->target_group[current_names->used] = NULL;
                current_names->names[current_names->used++] = name;
                while (iswspace(*member_start)) {
                        member_start++;
                }
                /* Check if there are more members */
                if ((*member_start == (int) parenright_char) ||
                    (member_start >= string_end)) {
                        return current_names;
                }
        }
        /* NOTREACHED */
}

/*
 *      normalize_name(name_string, length)
 *
 *      Take a namestring and remove redundant ../, // and ./ constructs
 *
 *      Return value:
 *                              The normalized name
 *
 *      Parameters:
 *              name_string     Path string to normalize
 *              length          Length of that string
 *
 *      Global variables used:
 *              dot             The Name ".", compared against
 *              dotdot          The Name "..", compared against
 */
Name
normalize_name(wchar_t *name_string, int length)
{
        static Name             dotdot;
        wchar_t *string = ALLOC_WC(length + 1);
        wchar_t *string2;
        wchar_t *cdp;
        wchar_t                 *current_component;
        Name                    name;
        int             count;

        if (dotdot == NULL) {
                MBSTOWCS(wcs_buffer, "..");
                dotdot = GETNAME(wcs_buffer, FIND_LENGTH);
        }

        /*
         * Copy string removing ./ and //.
         * First strip leading ./
         */
        while ((length > 1) &&
               (name_string[0] == (int) period_char) &&
               (name_string[1] == (int) slash_char)) {
                name_string += 2;
                length -= 2;
                while ((length > 0) && (name_string[0] == (int) slash_char)) {
                        name_string++;
                        length--;
                }
        }
        /* Then copy the rest of the string removing /./ & // */
        cdp = string;
        while (length > 0) {
                if (((length > 2) &&
                     (name_string[0] == (int) slash_char) &&
                     (name_string[1] == (int) period_char) &&
                     (name_string[2] == (int) slash_char)) ||
                    ((length == 2) &&
                     (name_string[0] == (int) slash_char) &&
                     (name_string[1] == (int) period_char))) {
                        name_string += 2;
                        length -= 2;
                        continue;
                }
                if ((length > 1) &&
                    (name_string[0] == (int) slash_char) &&
                    (name_string[1] == (int) slash_char)) {
                        name_string++;
                        length--;
                        continue;
                }
                *cdp++ = *name_string++;
                length--;
        }
        *cdp = (int) nul_char;
        /*
         * Now scan for <name>/../ and remove such combinations iff <name>
         * is not another ..
         * Each time something is removed, the whole process is restarted.
         */
removed_one:
        name_string = string;
        string2 = name_string;          /*save for free*/
        current_component =
          cdp =
            string =
              ALLOC_WC((length = wcslen(name_string)) + 1);
        while (length > 0) {
                if (((length > 3) &&
                     (name_string[0] == (int) slash_char) &&
                     (name_string[1] == (int) period_char) &&
                     (name_string[2] == (int) period_char) &&
                     (name_string[3] == (int) slash_char)) ||
                    ((length == 3) &&
                     (name_string[0] == (int) slash_char) &&
                     (name_string[1] == (int) period_char) &&
                     (name_string[2] == (int) period_char))) {
                        /* Positioned on the / that starts a /.. sequence */
                        if (((count = cdp - current_component) != 0) &&
                            (exists(name = GETNAME(string, cdp - string)) > file_doesnt_exist) &&
                            (!name->stat.is_sym_link)) {
                                name = GETNAME(current_component, count);
                                if(name != dotdot) {
                                        cdp = current_component;
                                        name_string += 3;
                                        length -= 3;
                                        if (length > 0) {
                                                name_string++;  /* skip slash */
                                                length--;
                                                while (length > 0) {
                                                        *cdp++ = *name_string++;
                                                        length--;
                                                }
                                        }
                                        *cdp = (int) nul_char;
                                        retmem(string2);
                                        goto removed_one;
                                }
                        }
                }
                if ((*cdp++ = *name_string++) == (int) slash_char) {
                        current_component = cdp;
                }
                length--;
        }
        *cdp = (int) nul_char;
        if (string[0] == (int) nul_char) {
                name = dot;
        } else {
                name = GETNAME(string, FIND_LENGTH);
        }
        retmem(string);
        retmem(string2);
        return name;
}

/*
 *      find_target_groups(target_list)
 *
 *      If a "+" was seen when the target list was scanned we need to extract
 *      the groups. Each target in the name vector that is a member of a
 *      group gets a pointer to a chain of all the members stuffed in its
 *      target_group vector slot
 *
 *      Parameters:
 *              target_list     The list of targets that contains "+"
 *
 *      Global variables used:
 *              plus            The Name "+", compared against
 */
Chain
find_target_groups(Name_vector target_list, int i, Boolean reset)
{
        static Chain            target_group = NULL;
        static Chain            tail_target_group = NULL;
        static Name             *next;
        static Boolean  clear_target_group = false;

        if (reset) {
                target_group = NULL;
                tail_target_group = NULL;
                clear_target_group = false;
        }

        /* Scan the list of targets */
        /* If the previous target terminated a group */
        /* we flush the pointer to that member chain */
        if (clear_target_group) {
                clear_target_group = false;
                target_group = NULL;
        }
        /* Pick up a pointer to the cell with */
        /* the next target */
        if (i + 1 != target_list->used) {
                next = &target_list->names[i + 1];
        } else {
                next = (target_list->next != NULL) ?
                  &target_list->next->names[0] : NULL;
        }
        /* We have four states here :
         *      0:      No target group started and next element is not "+"
         *              This is not interesting.
         *      1:      A target group is being built and the next element
         *              is not "+". This terminates the group.
         *      2:      No target group started and the next member is "+"
         *              This is the first target in a group.
         *      3:      A target group started and the next member is a "+"
         *              The group continues.
         */
        switch ((target_group ? 1 : 0) +
                (next && (*next == plus) ?
                 2 : 0)) {
              case 0:   /* Not target_group */
                break;
              case 1:   /* Last group member */
                /* We need to keep this pointer so */
                /* we can stuff it for last member */
                clear_target_group = true;
                /* FALLTHROUGH */
              case 3:   /* Middle group member */
                /* Add this target to the */
                /* current chain */
                tail_target_group->next = ALLOC(Chain);
                tail_target_group = tail_target_group->next;
                tail_target_group->next = NULL;
                tail_target_group->name = target_list->names[i];
                break;
              case 2:   /* First group member */
                /* Start a new chain */
                target_group = tail_target_group = ALLOC(Chain);
                target_group->next = NULL;
                target_group->name = target_list->names[i];
                break;
        }
        /* Stuff the current chain, if any, in the */
        /* targets group slot */
        target_list->target_group[i] = target_group;
        if ((next != NULL) &&
            (*next == plus)) {
                *next = NULL;
        }
        return (tail_target_group);
}

/*
 *      enter_dependencies(target, target_group, depes, command, separator)
 *
 *      Take one target and a list of dependencies and process the whole thing.
 *      The target might be special in some sense in which case that is handled
 *
 *      Parameters:
 *              target          The target we want to enter
 *              target_group    Non-NULL if target is part of a group this time
 *              depes           A list of dependencies for the target
 *              command         The command the target should be entered with
 *              separator       Indicates if this is a ":" or a "::" rule
 *
 *      Static variables used:
 *              built_last_make_run_seen If the previous target was
 *                                      .BUILT_LAST_MAKE_RUN we say to rewrite
 *                                      the state file later on
 *
 *      Global variables used:
 *              command_changed Set to indicate if .make.state needs rewriting
 *              default_target_to_build Set to the target if reading makefile
 *                                      and this is the first regular target
 *              force           The Name " FORCE", used with "::" targets
 *              makefile_type   We do different things for makefile vs. report
 *              not_auto        The Name ".NOT_AUTO", compared against
 *              recursive_name  The Name ".RECURSIVE", compared against
 *              temp_file_number Used to figure out when to clear stale
 *                                      automatic dependencies
 *              trace_reader    Indicates that we should echo stuff we read
 */
void
enter_dependencies(Name target, Chain target_group, Name_vector depes, Cmd_line command, Separator separator)
{
        int             i;
        Property        line;
        Name                    name;
        Name                    directory;
        wchar_t                 *namep;
        char                    *mb_namep;
        Dependency              dp;
        Dependency              *dpp;
        Property                line2;
        wchar_t                 relative[MAXPATHLEN];
        int             recursive_state;
        Boolean                 register_as_auto;
        Boolean                 not_auto_found;
        char                    *slash;
        Wstring                 depstr;

        /* Check if this is a .RECURSIVE line */
        if ((depes->used >= 3) &&
            (depes->names[0] == recursive_name)) {
                target->has_recursive_dependency = true;
                depes->names[0] = NULL;
                recursive_state = 0;
                dp = NULL;
                dpp = &dp;
                /* Read the dependencies. They are "<directory> <target-made>*/
                /* <makefile>*" */
                for (; depes != NULL; depes = depes->next) {
                        for (i = 0; i < depes->used; i++) {
                                if (depes->names[i] != NULL) {
                                        switch (recursive_state++) {
                                        case 0: /* Directory */
                                        {
                                                depstr.init(depes->names[i]);
                                                make_relative(depstr.get_string(),
                                                              relative);
                                                directory =
                                                  GETNAME(relative,
                                                          FIND_LENGTH);
                                        }
                                                break;
                                        case 1: /* Target */
                                                name = depes->names[i];
                                                break;
                                        default:        /* Makefiles */
                                                *dpp = ALLOC(Dependency);
                                                (*dpp)->next = NULL;
                                                (*dpp)->name = depes->names[i];
                                                (*dpp)->automatic = false;
                                                (*dpp)->stale = false;
                                                (*dpp)->built = false;
                                                dpp = &((*dpp)->next);
                                                break;
                                        }
                                }
                        }
                }
                /* Check if this recursion already has been reported else */
                /* enter the recursive prop for the target */
                /* The has_built flag is used to tell if this .RECURSIVE */
                /* was discovered from this run (read from a tmp file) */
                /* or was from discovered from the original .make.state */
                /* file */
                for (line = get_prop(target->prop, recursive_prop);
                     line != NULL;
                     line = get_prop(line->next, recursive_prop)) {
                        if ((line->body.recursive.directory == directory) &&
                            (line->body.recursive.target == name)) {
                                line->body.recursive.makefiles = dp;
                                line->body.recursive.has_built =
                                  (Boolean)
                                    (makefile_type == reading_cpp_file);
                                return;
                        }
                }
                line2 = append_prop(target, recursive_prop);
                line2->body.recursive.directory = directory;
                line2->body.recursive.target = name;
                line2->body.recursive.makefiles = dp;
                line2->body.recursive.has_built =
                    (Boolean) (makefile_type == reading_cpp_file);
                line2->body.recursive.in_depinfo = false;
                return;
        }
        /* If this is the first target that doesnt start with a "." in the */
        /* makefile we remember that */
        Wstring tstr(target);
        wchar_t * wcb = tstr.get_string();
        if ((makefile_type == reading_makefile) &&
            (default_target_to_build == NULL) &&
            ((wcb[0] != (int) period_char) ||
             wcschr(wcb, (int) slash_char))) {

/* BID 1181577: $(EMPTY_MACRO) + $(EMPTY_MACRO):
** The target with empty name cannot be default_target_to_build
*/
                if (target->hash.length != 0)
                        default_target_to_build = target;
        }
        /* Check if the line is ":" or "::" */
        if (makefile_type == reading_makefile) {
                if (target->colons == no_colon) {
                        target->colons = separator;
                } else {
                        if (target->colons != separator) {
                                fatal_reader(gettext(":/:: conflict for target `%s'"),
                                             target->string_mb);
                        }
                }
                if (target->colons == two_colon) {
                        if (depes->used == 0) {
                                /* If this is a "::" type line with no */
                                /* dependencies we add one "FRC" type */
                                /* dependency for free */
                                depes->used = 1; /* Force :: targets with no
                                                  * depes to always run */
                                depes->names[0] = force;
                        }
                        /* Do not delete "::" type targets when interrupted */
                        target->stat.is_precious = true;
                        /*
                         * Build a synthetic target "<number>%target"
                         * for "target".
                         */
                        mb_namep = getmem((int) (strlen(target->string_mb) + 10));
                        namep = ALLOC_WC((int) (target->hash.length + 10));
                        slash = strrchr(target->string_mb, (int) slash_char);
                        if (slash == NULL) {
                                (void) sprintf(mb_namep,
                                                "%d@%s",
                                                target->colon_splits++,
                                                target->string_mb);
                        } else {
                                *slash = 0;
                                (void) sprintf(mb_namep,
                                                "%s/%d@%s",
                                                target->string_mb,
                                                target->colon_splits++,
                                                slash + 1);
                                *slash = (int) slash_char;
                        }
                        MBSTOWCS(namep, mb_namep);
                        retmem_mb(mb_namep);
                        name = GETNAME(namep, FIND_LENGTH);
                        retmem(namep);
                        if (trace_reader) {
                                (void) printf("%s:\t", target->string_mb);
                        }
                        /* Make "target" depend on "<number>%target */
                        line2 = maybe_append_prop(target, line_prop);
                        enter_dependency(line2, name, true);
                        line2->body.line.target = target;
                        /* Put a prop on "<number>%target that makes */
                        /* appear as "target" */
                        /* when it is processed */
                        maybe_append_prop(name, target_prop)->
                          body.target.target = target;
                        target->is_double_colon_parent = true;
                        name->is_double_colon = true;
                        name->has_target_prop = true;
                        if (trace_reader) {
                                (void) printf("\n");
                        }
                        (target = name)->stat.is_file = true;
                }
        }
        /* This really is a regular dependency line. Just enter it */
        line = maybe_append_prop(target, line_prop);
        line->body.line.target = target;
        /* Depending on what kind of makefile we are reading we have to */
        /* treat things differently */
        switch (makefile_type) {
        case reading_makefile:
                /* Reading regular makefile. Just notice whether this */
                /* redefines the rule for the  target */
                if (command != NULL) {
                        if (line->body.line.command_template != NULL) {
                                line->body.line.command_template_redefined =
                                  true;
                                if ((wcb[0] == (int) period_char) &&
                                    !wcschr(wcb, (int) slash_char)) {
                                        line->body.line.command_template =
                                          command;
                                }
                        } else {
                                line->body.line.command_template = command;
                        }
                } else {
                        if ((wcb[0] == (int) period_char) &&
                            !wcschr(wcb, (int) slash_char)) {
                                line->body.line.command_template = command;
                        }
                }
                break;
        case rereading_statefile:
                /* Rereading the statefile. We only enter thing that changed */
                /* since the previous time we read it */
                if (!built_last_make_run_seen) {
                        for (Cmd_line next, cmd = command; cmd != NULL; cmd = next) {
                                next = cmd->next;
                                free(cmd);
                        }
                        return;
                }
                built_last_make_run_seen = false;
                command_changed = true;
                target->ran_command = true;
                /* FALLTHROUGH */
        case reading_statefile:
                /* Reading the statefile for the first time. Enter the rules */
                /* as "Commands used" not "templates to use" */
                if (command != NULL) {
                        for (Cmd_line next, cmd = line->body.line.command_used;
                             cmd != NULL; cmd = next) {
                                next = cmd->next;
                                free(cmd);
                        }
                        line->body.line.command_used = command;
                }
                /* FALLTHROUGH */
        case reading_cpp_file:
                /* Reading report file from programs that reports */
                /* dependencies. If this is the first time the target is */
                /* read from this reportfile we clear all old */
                /* automatic depes */
                if (target->temp_file_number == temp_file_number) {
                        break;
                }
                target->temp_file_number = temp_file_number;
                command_changed = true;
                if (line != NULL) {
                        for (dp = line->body.line.dependencies;
                             dp != NULL;
                             dp = dp->next) {
                                if (dp->automatic) {
                                        dp->stale = true;
                                }
                        }
                }
                break;
        default:
                fatal_reader(gettext("Internal error. Unknown makefile type %d"),
                             makefile_type);
        }
        /* A target may only be involved in one target group */
        if (line->body.line.target_group != NULL) {
                if (target_group != NULL) {
                        fatal_reader(gettext("Too many target groups for target `%s'"),
                                     target->string_mb);
                }
        } else {
                line->body.line.target_group = target_group;
        }

        if (trace_reader) {
                (void) printf("%s:\t", target->string_mb);
        }
        /* Enter the dependencies */
        register_as_auto = BOOLEAN(makefile_type != reading_makefile);
        not_auto_found = false;
        for (;
             (depes != NULL) && !not_auto_found;
             depes = depes->next) {
                for (i = 0; i < depes->used; i++) {
                        /* the dependency .NOT_AUTO signals beginning of
                         * explicit dependancies which were put at end of
                         * list in .make.state file - we stop entering
                         * dependencies at this point
                         */
                        if (depes->names[i] == not_auto) {
                                not_auto_found = true;
                                break;
                        }
                        enter_dependency(line,
                                         depes->names[i],
                                         register_as_auto);
                }
        }
        if (trace_reader) {
                (void) printf("\n");
                print_rule(command);
        }
}

/*
 *      enter_dependency(line, depe, automatic)
 *
 *      Enter one dependency. Do not enter duplicates.
 *
 *      Parameters:
 *              line            The line block that the dependeny is
 *                              entered for
 *              depe            The dependency to enter
 *              automatic       Used to set the field "automatic"
 *
 *      Global variables used:
 *              makefile_type   We do different things for makefile vs. report
 *              trace_reader    Indicates that we should echo stuff we read
 *              wait_name       The Name ".WAIT", compared against
 */
void
enter_dependency(Property line, Name depe, Boolean automatic)
{
        Dependency      dp;
        Dependency      *insert;

        if (trace_reader) {
                (void) printf("%s ", depe->string_mb);
        }
        /* Find the end of the list and check for duplicates */
        for (insert = &line->body.line.dependencies, dp = *insert;
             dp != NULL;
             insert = &dp->next, dp = *insert) {
                if ((dp->name == depe) && (depe != wait_name)) {
                        if (dp->automatic) {
                                dp->automatic = automatic;
                                if (automatic) {
                                        dp->built = false;
                                        depe->stat.is_file = true;
                                }
                        }
                        dp->stale = false;
                        return;
                }
        }
        /* Insert the new dependency since we couldnt find it */
        dp = *insert = ALLOC(Dependency);
        dp->name = depe;
        dp->next = NULL;
        dp->automatic = automatic;
        dp->stale = false;
        dp->built = false;
        depe->stat.is_file = true;

        if ((makefile_type == reading_makefile) &&
            (line != NULL) &&
            (line->body.line.target != NULL)) {
                line->body.line.target->has_regular_dependency = true;
        }
}

/*
 *      enter_percent(target, depes, command)
 *
 *      Enter "x%y : a%b" type lines
 *      % patterns are stored in four parts head and tail for target and source
 *
 *      Parameters:
 *              target          Left hand side of pattern
 *              depes           The dependency list with the rh pattern
 *              command         The command for the pattern
 *
 *      Global variables used:
 *              empty_name      The Name "", compared against
 *              percent_list    The list of all percent rules, added to
 *              trace_reader    Indicates that we should echo stuff we read
 */
Percent
enter_percent(Name target, Chain target_group, Name_vector depes, Cmd_line command)
{
        Percent result = ALLOC(Percent);
        Percent depe;
        Percent *depe_tail = &result->dependencies;
        Percent *insert;
        wchar_t *cp, *cp1;
        Name_vector             nvp;
        int                     i;
        int                     pattern;

        result->next = NULL;
        result->patterns = NULL;
        result->patterns_total = 0;
        result->command_template = command;
        result->being_expanded = false;
        result->name = target;
        result->dependencies = NULL;
        result->target_group = target_group;

        /* get patterns count */
        Wstring wcb(target);
        cp = wcb.get_string();
        while (true) {
                cp = (wchar_t *) wcschr(cp, (int) percent_char);
                if (cp != NULL) {
                        result->patterns_total++;
                        cp++;
                } else {
                        break;
                }
        }
        result->patterns_total++;

        /* allocate storage for patterns */
        result->patterns = (Name *) getmem(sizeof(Name) * result->patterns_total);

        /* then create patterns */
        cp = wcb.get_string();
        pattern = 0;
        while (true) {
                cp1 = (wchar_t *) wcschr(cp, (int) percent_char);
                if (cp1 != NULL) {
                        result->patterns[pattern] = GETNAME(cp, cp1 - cp);
                        cp = cp1 + 1;
                        pattern++;
                } else {
                        result->patterns[pattern] = GETNAME(cp, (int) target->hash.length - (cp - wcb.get_string()));
                        break;
                }
        }

        Wstring wcb1;

        /* build dependencies list */
        for (nvp = depes; nvp != NULL; nvp = nvp->next) {
                for (i = 0; i < nvp->used; i++) {
                        depe = ALLOC(Percent);
                        depe->next = NULL;
                        depe->patterns = NULL;
                        depe->patterns_total = 0;
                        depe->name = nvp->names[i];
                        depe->dependencies = NULL;
                        depe->command_template = NULL;
                        depe->being_expanded = false;
                        depe->target_group = NULL;

                        *depe_tail = depe;
                        depe_tail = &depe->next;

                        if (depe->name->percent) {
                                /* get patterns count */
                                wcb1.init(depe->name);
                                cp = wcb1.get_string();
                                while (true) {
                                        cp = (wchar_t *) wcschr(cp, (int) percent_char);
                                        if (cp != NULL) {
                                                depe->patterns_total++;
                                                cp++;
                                        } else {
                                                break;
                                        }
                                }
                                depe->patterns_total++;

                                /* allocate storage for patterns */
                                depe->patterns = (Name *) getmem(sizeof(Name) * depe->patterns_total);

                                /* then create patterns */
                                cp = wcb1.get_string();
                                pattern = 0;
                                while (true) {
                                        cp1 = (wchar_t *) wcschr(cp, (int) percent_char);
                                        if (cp1 != NULL) {
                                                depe->patterns[pattern] = GETNAME(cp, cp1 - cp);
                                                cp = cp1 + 1;
                                                pattern++;
                                        } else {
                                                depe->patterns[pattern] = GETNAME(cp, (int) depe->name->hash.length - (cp - wcb1.get_string()));
                                                break;
                                        }
                                }
                        }
                }
        }

        /* Find the end of the percent list and append the new pattern */
        for (insert = &percent_list; (*insert) != NULL; insert = &(*insert)->next);
        *insert = result;

        if (trace_reader) {
                (void) printf("%s:", result->name->string_mb);

                for (depe = result->dependencies; depe != NULL; depe = depe->next) {
                        (void) printf(" %s", depe->name->string_mb);
                }

                (void) printf("\n");

                print_rule(command);
        }

        return result;
}

/*
 *      enter_dyntarget(target)
 *
 *      Enter "$$(MACRO) : b" type lines
 *
 *      Parameters:
 *              target          Left hand side of pattern
 *
 *      Global variables used:
 *              dyntarget_list  The list of all percent rules, added to
 *              trace_reader    Indicates that we should echo stuff we read
 */
Dyntarget
enter_dyntarget(Name target)
{
        Dyntarget       result = ALLOC(Dyntarget);
        Dyntarget               p;
        Dyntarget               *insert;
        int                             i;

        result->next = NULL;
        result->name = target;


        /* Find the end of the dyntarget list and append the new pattern */
        for (insert = &dyntarget_list, p = *insert;
             p != NULL;
             insert = &p->next, p = *insert);
        *insert = result;

        if (trace_reader) {
                (void) printf("Dynamic target %s:\n", result->name->string_mb);
        }
        return( result);
}


/*
 *      special_reader(target, depes, command)
 *
 *      Read the pseudo targets make knows about
 *      This handles the special targets that should not be entered as regular
 *      target/dependency sets.
 *
 *      Parameters:
 *              target          The special target
 *              depes           The list of dependencies it was entered with
 *              command         The command it was entered with
 *
 *      Static variables used:
 *              built_last_make_run_seen Set to indicate .BUILT_LAST... seen
 *
 *      Global variables used:
 *              all_parallel    Set to indicate that everything runs parallel
 *              svr4            Set when ".SVR4" target is read
 *              svr4_name       The Name ".SVR4"
 *              posix           Set when ".POSIX" target is read
 *              posix_name      The Name ".POSIX"
 *              current_make_version The Name "<current version number>"
 *              default_rule    Set when ".DEFAULT" target is read
 *              default_rule_name The Name ".DEFAULT", used for tracing
 *              dot_keep_state  The Name ".KEEP_STATE", used for tracing
 *              ignore_errors   Set if ".IGNORE" target is read
 *              ignore_name     The Name ".IGNORE", used for tracing
 *              keep_state      Set if ".KEEP_STATE" target is read
 *              no_parallel_name The Name ".NO_PARALLEL", used for tracing
 *              only_parallel   Set to indicate only some targets runs parallel
 *              parallel_name   The Name ".PARALLEL", used for tracing
 *              precious        The Name ".PRECIOUS", used for tracing
 *              sccs_get_name   The Name ".SCCS_GET", used for tracing
 *              sccs_get_posix_name The Name ".SCCS_GET_POSIX", used for tracing
 *              get_name        The Name ".GET", used for tracing
 *              sccs_get_rule   Set when ".SCCS_GET" target is read
 *              silent          Set when ".SILENT" target is read
 *              silent_name     The Name ".SILENT", used for tracing
 *              trace_reader    Indicates that we should echo stuff we read
 */
void
special_reader(Name target, Name_vector depes, Cmd_line command)
{
        int             n;

        switch (target->special_reader) {

        case svr4_special:
                if (depes->used != 0) {
                        fatal_reader(gettext("Illegal dependencies for target `%s'"),
                                     target->string_mb);
                }
                svr4  = true;
                posix  = false;
                keep_state = false;
                all_parallel = false;
                only_parallel = false;
                if (trace_reader) {
                        (void) printf("%s:\n", svr4_name->string_mb);
                }
                break;

        case posix_special:
                if(svr4)
                  break;
                if (depes->used != 0) {
                        fatal_reader(gettext("Illegal dependencies for target `%s'"),
                                     target->string_mb);
                }
                posix  = true;
                        /* with posix on, use the posix get rule */
                sccs_get_rule = sccs_get_posix_rule;
                        /* turn keep state off being SunPro make specific */
                keep_state = false;
                /* Use /usr/xpg4/bin/sh on Solaris */
                MBSTOWCS(wcs_buffer, "/usr/xpg4/bin/sh");
                (void) SETVAR(shell_name, GETNAME(wcs_buffer, FIND_LENGTH), false);
                if (trace_reader) {
                        (void) printf("%s:\n", posix_name->string_mb);
                }
                break;

        case built_last_make_run_special:
                built_last_make_run_seen = true;
                break;

        case default_special:
                if (depes->used != 0) {
                        warning(gettext("Illegal dependency list for target `%s'"),
                                target->string_mb);
                }
                default_rule = command;
                if (trace_reader) {
                        (void) printf("%s:\n",
                                      default_rule_name->string_mb);
                        print_rule(command);
                }
                break;


        case ignore_special:
                if ((depes->used != 0) &&(!posix)){
                        fatal_reader(gettext("Illegal dependencies for target `%s'"),
                                     target->string_mb);
                }
                if (depes->used == 0)
                {
                   ignore_errors_all = true;
                }
                if(svr4) {
                  ignore_errors_all = true;
                  break;
                }
                for (; depes != NULL; depes = depes->next) {
                        for (n = 0; n < depes->used; n++) {
                                depes->names[n]->ignore_error_mode = true;
                        }
                }
                if (trace_reader) {
                        (void) printf("%s:\n", ignore_name->string_mb);
                }
                break;

        case keep_state_special:
                if(svr4)
                  break;
                        /* ignore keep state, being SunPro make specific */
                if(posix)
                  break;
                if (depes->used != 0) {
                        fatal_reader(gettext("Illegal dependencies for target `%s'"),
                                     target->string_mb);
                }
                keep_state = true;
                if (trace_reader) {
                        (void) printf("%s:\n",
                                      dot_keep_state->string_mb);
                }
                break;

        case keep_state_file_special:
                if(svr4)
                  break;
                if(posix)
                  break;
                        /* it's not necessary to specify KEEP_STATE, if this
                        ** is given, so set the keep_state.
                        */
                keep_state = true;
                if (depes->used != 0) {
                   if((!make_state) ||(!strcmp(make_state->string_mb,".make.state"))) {
                     make_state = depes->names[0];
                   }
                }
                break;
        case make_version_special:
                if(svr4)
                  break;
                if (depes->used != 1) {
                        fatal_reader(gettext("Illegal dependency list for target `%s'"),
                                     target->string_mb);
                }
                if (depes->names[0] != current_make_version) {
                        /*
                         * Special case the fact that version 1.0 and 1.1
                         * are identical.
                         */
                        if (!IS_EQUAL(depes->names[0]->string_mb,
                                      "VERSION-1.1") ||
                            !IS_EQUAL(current_make_version->string_mb,
                                      "VERSION-1.0")) {
                                /*
                                 * Version mismatches should cause the
                                 * .make.state file to be skipped.
                                 * This is currently not true - it is read
                                 * anyway.
                                 */
                                warning(gettext("Version mismatch between current version `%s' and `%s'"),
                                        current_make_version->string_mb,
                                        depes->names[0]->string_mb);
                        }
                }
                break;

        case no_parallel_special:
                if(svr4)
                  break;
                /* Set the no_parallel bit for all the targets on */
                /* the dependency list */
                if (depes->used == 0) {
                        /* only those explicitly made parallel */
                        only_parallel = true;
                        all_parallel = false;
                }
                for (; depes != NULL; depes = depes->next) {
                        for (n = 0; n < depes->used; n++) {
                                if (trace_reader) {
                                        (void) printf("%s:\t%s\n",
                                                      no_parallel_name->string_mb,
                                                      depes->names[n]->string_mb);
                                }
                                depes->names[n]->no_parallel = true;
                                depes->names[n]->parallel = false;
                        }
                }
                break;

        case parallel_special:
                if(svr4)
                  break;
                if (depes->used == 0) {
                        /* everything runs in parallel */
                        all_parallel = true;
                        only_parallel = false;
                }
                /* Set the parallel bit for all the targets on */
                /* the dependency list */
                for (; depes != NULL; depes = depes->next) {
                        for (n = 0; n < depes->used; n++) {
                                if (trace_reader) {
                                        (void) printf("%s:\t%s\n",
                                                      parallel_name->string_mb,
                                                      depes->names[n]->string_mb);
                                }
                                depes->names[n]->parallel = true;
                                depes->names[n]->no_parallel = false;
                        }
                }
                break;

        case localhost_special:
                if(svr4)
                  break;
                /* Set the no_parallel bit for all the targets on */
                /* the dependency list */
                if (depes->used == 0) {
                        /* only those explicitly made parallel */
                        only_parallel = true;
                        all_parallel = false;
                }
                for (; depes != NULL; depes = depes->next) {
                        for (n = 0; n < depes->used; n++) {
                                if (trace_reader) {
                                        (void) printf("%s:\t%s\n",
                                                      localhost_name->string_mb,
                                                      depes->names[n]->string_mb);
                                }
                                depes->names[n]->no_parallel = true;
                                depes->names[n]->parallel = false;
                                depes->names[n]->localhost = true;
                        }
                }
                break;

        case precious_special:
                if (depes->used == 0) {
                        /* everything is precious      */
                        all_precious = true;
                } else {
                        all_precious = false;
                }
                if(svr4) {
                  all_precious = true;
                  break;
                }
                /* Set the precious bit for all the targets on */
                /* the dependency list */
                for (; depes != NULL; depes = depes->next) {
                        for (n = 0; n < depes->used; n++) {
                                if (trace_reader) {
                                        (void) printf("%s:\t%s\n",
                                                      precious->string_mb,
                                                      depes->names[n]->string_mb);
                                }
                                depes->names[n]->stat.is_precious = true;
                        }
                }
                break;

        case sccs_get_special:
                if (depes->used != 0) {
                        fatal_reader(gettext("Illegal dependencies for target `%s'"),
                                     target->string_mb);
                }
                sccs_get_rule = command;
                sccs_get_org_rule = command;
                if (trace_reader) {
                        (void) printf("%s:\n", sccs_get_name->string_mb);
                        print_rule(command);
                }
                break;

        case sccs_get_posix_special:
                if (depes->used != 0) {
                        fatal_reader(gettext("Illegal dependencies for target `%s'"),
                                     target->string_mb);
                }
                sccs_get_posix_rule = command;
                if (trace_reader) {
                        (void) printf("%s:\n", sccs_get_posix_name->string_mb);
                        print_rule(command);
                }
                break;

        case get_posix_special:
                if (depes->used != 0) {
                        fatal_reader(gettext("Illegal dependencies for target `%s'"),
                                     target->string_mb);
                }
                get_posix_rule = command;
                if (trace_reader) {
                        (void) printf("%s:\n", get_posix_name->string_mb);
                        print_rule(command);
                }
                break;

        case get_special:
                if(!svr4) {
                  break;
                }
                if (depes->used != 0) {
                        fatal_reader(gettext("Illegal dependencies for target `%s'"),
                                     target->string_mb);
                }
                get_rule = command;
                sccs_get_rule = command;
                if (trace_reader) {
                        (void) printf("%s:\n", get_name->string_mb);
                        print_rule(command);
                }
                break;

        case silent_special:
                if ((depes->used != 0) && (!posix)){
                        fatal_reader(gettext("Illegal dependencies for target `%s'"),
                                     target->string_mb);
                }
                if (depes->used == 0)
                {
                   silent_all = true;
                }
                if(svr4) {
                  silent_all = true;
                  break;
                }
                for (; depes != NULL; depes = depes->next) {
                        for (n = 0; n < depes->used; n++) {
                                depes->names[n]->silent_mode = true;
                        }
                }
                if (trace_reader) {
                        (void) printf("%s:\n", silent_name->string_mb);
                }
                break;

        case suffixes_special:
                read_suffixes_list(depes);
                break;

        default:

                fatal_reader(gettext("Internal error: Unknown special reader"));
        }
}

/*
 *      read_suffixes_list(depes)
 *
 *      Read the special list .SUFFIXES. If it is empty the old list is
 *      cleared. Else the new one is appended. Suffixes with ~ are extracted
 *      and marked.
 *
 *      Parameters:
 *              depes           The list of suffixes
 *
 *      Global variables used:
 *              hashtab         The central hashtable for Names.
 *              suffixes        The list of suffixes, set or appended to
 *              suffixes_name   The Name ".SUFFIXES", used for tracing
 *              trace_reader    Indicates that we should echo stuff we read
 */
static void
read_suffixes_list(Name_vector depes)
{
        int             n;
        Dependency      dp;
        Dependency      *insert_dep;
        Name            np;
        Name                    np2;
        Boolean first = true;

        if (depes->used == 0) {
                /* .SUFFIXES with no dependency list clears the */
                /* suffixes list */
                for (Name_set::iterator np = hashtab.begin(), e = hashtab.end(); np != e; np++) {
                                np->with_squiggle =
                                  np->without_squiggle =
                                    false;
                }
                suffixes = NULL;
                if (trace_reader) {
                        (void) printf("%s:\n", suffixes_name->string_mb);
                }
                return;
        }
        Wstring str;
        /* Otherwise we append to the list */
        for (; depes != NULL; depes = depes->next) {
                for (n = 0; n < depes->used; n++) {
                        np = depes->names[n];
                        /* Find the end of the list and check if the */
                        /* suffix already has been entered */
                        for (insert_dep = &suffixes, dp = *insert_dep;
                             dp != NULL;
                             insert_dep = &dp->next, dp = *insert_dep) {
                                if (dp->name == np) {
                                        goto duplicate_suffix;
                                }
                        }
                        if (trace_reader) {
                                if (first) {
                                        (void) printf("%s:\t",
                                                      suffixes_name->string_mb);
                                        first = false;
                                }
                                (void) printf("%s ", depes->names[n]->string_mb);
                        }
                if(!(posix|svr4)) {
                        /* If the suffix is suffixed with "~" we */
                        /* strip that and mark the suffix nameblock */
                        str.init(np);
                        wchar_t * wcb = str.get_string();
                        if (wcb[np->hash.length - 1] ==
                            (int) tilde_char) {
                                np2 = GETNAME(wcb,
                                              (int)(np->hash.length - 1));
                                np2->with_squiggle = true;
                                if (np2->without_squiggle) {
                                        continue;
                                }
                                np = np2;
                        }
                }
                        np->without_squiggle = true;
                        /* Add the suffix to the list */
                        dp = *insert_dep = ALLOC(Dependency);
                        insert_dep = &dp->next;
                        dp->next = NULL;
                        dp->name = np;
                        dp->built = false;
                duplicate_suffix:;
                }
        }
        if (trace_reader) {
                (void) printf("\n");
        }
}

/*
 *      make_relative(to, result)
 *
 *      Given a file name compose a relative path name from it to the
 *      current directory.
 *
 *      Parameters:
 *              to              The path we want to make relative
 *              result          Where to put the resulting relative path
 *
 *      Global variables used:
 */
static void
make_relative(wchar_t *to, wchar_t *result)
{
        wchar_t                 *from;
        wchar_t                 *allocated;
        wchar_t                 *cp;
        wchar_t                 *tocomp;
        int                     ncomps;
        int                     i;
        int                     len;

        /* Check if the path is already relative. */
        if (to[0] != (int) slash_char) {
                (void) wcscpy(result, to);
                return;
        }

        MBSTOWCS(wcs_buffer, get_current_path());
        from = allocated = (wchar_t *) wcsdup(wcs_buffer);

        /*
         * Find the number of components in the from name.
         * ncomp = number of slashes + 1.
         */
        ncomps = 1;
        for (cp = from; *cp != (int) nul_char; cp++) {
                if (*cp == (int) slash_char) {
                        ncomps++;
                }
        }

        /*
         * See how many components match to determine how many "..",
         * if any, will be needed.
         */
        result[0] = (int) nul_char;
        tocomp = to;
        while ((*from != (int) nul_char) && (*from == *to)) {
                if (*from == (int) slash_char) {
                        ncomps--;
                        tocomp = &to[1];
                }
                from++;
                to++;
        }

        /*
         * Now for some special cases. Check for exact matches and
         * for either name terminating exactly.
         */
        if (*from == (int) nul_char) {
                if (*to == (int) nul_char) {
                        MBSTOWCS(wcs_buffer, ".");
                        (void) wcscpy(result, wcs_buffer);
                        retmem(allocated);
                        return;
                }
                if (*to == (int) slash_char) {
                        ncomps--;
                        tocomp = &to[1];
                }
        } else if ((*from == (int) slash_char) && (*to == (int) nul_char)) {
                ncomps--;
                tocomp = to;
        }
        /* Add on the ".."s. */
        for (i = 0; i < ncomps; i++) {
                MBSTOWCS(wcs_buffer, "../");
                (void) wcscat(result, wcs_buffer);
        }

        /* Add on the remainder of the to name, if any. */
        if (*tocomp == (int) nul_char) {
                len = wcslen(result);
                result[len - 1] = (int) nul_char;
        } else {
                (void) wcscat(result, tocomp);
        }
        retmem(allocated);
        return;
}

/*
 *      print_rule(command)
 *
 *      Used when tracing the reading of rules
 *
 *      Parameters:
 *              command         Command to print
 *
 *      Global variables used:
 */
static void
print_rule(Cmd_line command)
{
        for (; command != NULL; command = command->next) {
                (void) printf("\t%s\n", command->command_line->string_mb);
        }
}

/*
 *      enter_conditional(target, name, value, append)
 *
 *      Enter "target := MACRO= value" constructs
 *
 *      Parameters:
 *              target          The target the macro is for
 *              name            The name of the macro
 *              value           The value for the macro
 *              append          Indicates if the assignment is appending or not
 *
 *      Global variables used:
 *              conditionals    A special Name that stores all conditionals
 *                              where the target is a % pattern
 *              trace_reader    Indicates that we should echo stuff we read
 */
void
enter_conditional(Name target, Name name, Name value, Boolean append)
{
        Property        conditional;
        static int              sequence;
        Name                    orig_target = target;

        if (name == target_arch) {
                enter_conditional(target, virtual_root, virtual_root, false);
        }

        if (target->percent) {
                target = conditionals;
        }

        if (name->colon) {
                sh_transform(&name, &value);
        }

        /* Count how many conditionals we must activate before building the */
        /* target */
        if (target->percent) {
                target = conditionals;
        }

        target->conditional_cnt++;
        maybe_append_prop(name, macro_prop)->body.macro.is_conditional = true;
        /* Add the property for the target */
        conditional = append_prop(target, conditional_prop);
        conditional->body.conditional.target = orig_target;
        conditional->body.conditional.name = name;
        conditional->body.conditional.value = value;
        conditional->body.conditional.sequence = sequence++;
        conditional->body.conditional.append = append;
        if (trace_reader) {
                if (value == NULL) {
                        (void) printf("%s := %s %c=\n",
                                      target->string_mb,
                                      name->string_mb,
                                      append ?
                                      (int) plus_char : (int) space_char);
                } else {
                        (void) printf("%s := %s %c= %s\n",
                                      target->string_mb,
                                      name->string_mb,
                                      append ?
                                      (int) plus_char : (int) space_char,
                                      value->string_mb);
                }
        }
}

/*
 *      enter_equal(name, value, append)
 *
 *      Enter "MACRO= value" constructs
 *
 *      Parameters:
 *              name            The name of the macro
 *              value           The value for the macro
 *              append          Indicates if the assignment is appending or not
 *
 *      Global variables used:
 *              trace_reader    Indicates that we should echo stuff we read
 */
void
enter_equal(Name name, Name value, Boolean append)
{
        wchar_t         *string;
        Name            temp;

        if (name->colon) {
                sh_transform(&name, &value);
        }
        (void) SETVAR(name, value, append);

        /* if we're setting FC, we want to set F77 to the same value. */
        Wstring nms(name);
        wchar_t * wcb = nms.get_string();
        string = wcb;
        if (string[0]=='F' &&
            string[1]=='C' &&
            string[2]=='\0') {
                MBSTOWCS(wcs_buffer, "F77");
                temp = GETNAME(wcs_buffer, FIND_LENGTH);
                (void) SETVAR(temp, value, append);
/*
                fprintf(stderr, gettext("warning: FC is obsolete, use F77 instead\n"));
 */
        }

        if (trace_reader) {
                if (value == NULL) {
                        (void) printf("%s %c=\n",
                                      name->string_mb,
                                      append ?
                                      (int) plus_char : (int) space_char);
                } else {
                        (void) printf("%s %c= %s\n",
                                      name->string_mb,
                                      append ?
                                      (int) plus_char : (int) space_char,
                                      value->string_mb);
                }
        }
}

/*
 *      sh_transform(name, value)
 *
 *      Parameters:
 *              name    The name of the macro we might transform
 *              value   The value to transform
 *
 */
static void
sh_transform(Name *name, Name *value)
{
        /* Check if we need :sh transform */
        wchar_t         *colon;
        String_rec      command;
        String_rec      destination;
        wchar_t         buffer[1000];
        wchar_t         buffer1[1000];

        static wchar_t  colon_sh[4];
        static wchar_t  colon_shell[7];

        if (colon_sh[0] == (int) nul_char) {
                MBSTOWCS(colon_sh, ":sh");
                MBSTOWCS(colon_shell, ":shell");
        }
        Wstring nms((*name));
        wchar_t * wcb = nms.get_string();

        colon = (wchar_t *) wcsrchr(wcb, (int) colon_char);
        if ((colon != NULL) && (IS_WEQUAL(colon, colon_sh) || IS_WEQUAL(colon, colon_shell))) {
                INIT_STRING_FROM_STACK(destination, buffer);

                if(*value == NULL) {
                        buffer[0] = 0;
                } else {
                        Wstring wcb1((*value));
                        if (IS_WEQUAL(colon, colon_shell)) {
                                INIT_STRING_FROM_STACK(command, buffer1);
                                expand_value(*value, &command, false);
                        } else {
                                command.text.p = wcb1.get_string() + (*value)->hash.length;
                                command.text.end = command.text.p;
                                command.buffer.start = wcb1.get_string();
                                command.buffer.end = command.text.p;
                        }
                        sh_command2string(&command, &destination);
                }

                (*value) = GETNAME(destination.buffer.start, FIND_LENGTH);
                *colon = (int) nul_char;
                (*name) = GETNAME(wcb, FIND_LENGTH);
                *colon = (int) colon_char;
        }
}

/*
 *      fatal_reader(format, args...)
 *
 *      Parameters:
 *              format          printf style format string
 *              args            arguments to match the format
 *
 *      Global variables used:
 *              file_being_read Name of the makefile being read
 *              line_number     Line that is being read
 *              report_pwd      Indicates whether current path should be shown
 *              temp_file_name  When reading tempfile we report that name
 */
/*VARARGS*/
void
fatal_reader(char * pattern, ...)
{
        va_list args;
        char    message[1000];

        va_start(args, pattern);
        if (file_being_read != NULL) {
                WCSTOMBS(mbs_buffer, file_being_read);
                if (line_number != 0) {
                        (void) sprintf(message,
                                       gettext("%s, line %d: %s"),
                                       mbs_buffer,
                                       line_number,
                                       pattern);
                } else {
                        (void) sprintf(message,
                                       "%s: %s",
                                       mbs_buffer,
                                       pattern);
                }
                pattern = message;
        }

        (void) fflush(stdout);
        (void) fprintf(stderr, gettext("%s: Fatal error in reader: "),
            getprogname());
        (void) vfprintf(stderr, pattern, args);
        (void) fprintf(stderr, "\n");
        va_end(args);

        if (temp_file_name != NULL) {
                (void) fprintf(stderr,
                               gettext("%s: Temp-file %s not removed\n"),
                               getprogname(),
                               temp_file_name->string_mb);
                temp_file_name = NULL;
        }

        if (report_pwd) {
                (void) fprintf(stderr,
                               gettext("Current working directory %s\n"),
                               get_current_path());
        }
        (void) fflush(stderr);
        exit_status = 1;
        exit(1);
}