* gcc.c (target_sysroot_suffix, target_sysroot_hdrs_suffix,

SYSROOT_SUFFIX_SPEC, SYSROOT_HEADERS_SUFFIX_SPEC, sysroot_suffix_spec,
sysroot_hdrs_suffix_spec): New.
(static_specs): Initialize new variables.
(add_sysroot_suffix_prefix, do_spec_1, main): Use new variables.
* doc/tm.texi (SYSROOT_SUFFIX_SPEC, SYSROOT_HEADERS_SUFFIX_SPEC):
New macros.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@68223 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6190238..161cbf0 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2003-06-19  Graeme Peterson <gp@qnx.com>
+
+       * gcc.c (target_sysroot_suffix, target_sysroot_hdrs_suffix,
+       SYSROOT_SUFFIX_SPEC, SYSROOT_HEADERS_SUFFIX_SPEC, sysroot_suffix_spec,
+       sysroot_hdrs_suffix_spec): New.
+       (static_specs): Initialize new variables.
+       (add_sysroot_suffix_prefix, do_spec_1, main): Use new variables.
+       * doc/tm.texi (SYSROOT_SUFFIX_SPEC, SYSROOT_HEADERS_SUFFIX_SPEC):
+       New macros.
+
 2003-06-19  Andreas Jaeger  <aj@suse.de>
 
        * c-aux-info.c: Convert to ISO C90.

diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 4ba28b5..52697e1 100644 (file)
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -320,6 +320,19 @@ blanks that names one of the recognized thread models.  @code{%*}, the
 default value of this macro, will expand to the value of
 @code{thread_file} set in @file{config.gcc}.
 
+@findex SYSROOT_SUFFIX_SPEC
+@item SYSROOT_SUFFIX_SPEC
+Define this macro to add a suffix to the target sysroot when GCC is 
+configured with a sysroot.  This will cause GCC to search for usr/lib, 
+et al, within sysroot+suffix. 
+
+@findex SYSROOT_HEADERS_SUFFIX_SPEC
+@item SYSROOT_HEADERS_SUFFIX_SPEC
+Define this macro to add a headers_suffix to the target sysroot when 
+GCC is configured with a sysroot.  This will cause GCC to pass the 
+updated sysroot+headers_suffix to CPP@, causing it to search for
+usr/include, et al, within sysroot+headers_suffix.
+
 @findex EXTRA_SPECS
 @item EXTRA_SPECS
 Define this macro to provide additional specifications to put in the

diff --git a/gcc/gcc.c b/gcc/gcc.c
index e35ffc6..d599e4a 100644 (file)
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -212,6 +212,14 @@ static const char *target_system_root = 0;
 
 static int target_system_root_changed;
 
+/* Nonzero means append this string to target_system_root.  */
+
+static const char *target_sysroot_suffix = 0;
+
+/* Nonzero means append this string to target_system_root for headers.  */
+
+static const char *target_sysroot_hdrs_suffix = 0;
+
 /* Nonzero means write "temp" files in source directory
    and use the source file's name in them, and don't delete them.  */
 
@@ -703,6 +711,14 @@ proper position among the other output files.  */
 # define STARTFILE_PREFIX_SPEC ""
 #endif
 
+#ifndef SYSROOT_SUFFIX_SPEC
+# define SYSROOT_SUFFIX_SPEC ""
+#endif
+
+#ifndef SYSROOT_HEADERS_SUFFIX_SPEC
+# define SYSROOT_HEADERS_SUFFIX_SPEC ""
+#endif
+
 static const char *asm_debug;
 static const char *cpp_spec = CPP_SPEC;
 static const char *cc1_spec = CC1_SPEC;
@@ -720,6 +736,8 @@ static const char *linker_name_spec = LINKER_NAME;
 static const char *link_command_spec = LINK_COMMAND_SPEC;
 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
+static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
+static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
 
 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
    There should be no need to override these in target dependent files,
@@ -1499,6 +1517,8 @@ static struct spec_list static_specs[] =
   INIT_STATIC_SPEC ("md_startfile_prefix",     &md_startfile_prefix),
   INIT_STATIC_SPEC ("md_startfile_prefix_1",   &md_startfile_prefix_1),
   INIT_STATIC_SPEC ("startfile_prefix_spec",   &startfile_prefix_spec),
+  INIT_STATIC_SPEC ("sysroot_suffix_spec",     &sysroot_suffix_spec),
+  INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec",        &sysroot_hdrs_suffix_spec),
 };
 
 #ifdef EXTRA_SPECS             /* additional specs needed */
@@ -2611,7 +2631,10 @@ add_sysrooted_prefix (pprefix, prefix, component, priority,
 
   if (target_system_root)
     {
+      if (target_sysroot_suffix)
+         prefix = concat (target_sysroot_suffix, prefix, NULL);
       prefix = concat (target_system_root, prefix, NULL);
+
       /* We have to override this because GCC's notion of sysroot
         moves along with GCC.  */
       component = "GCC";
@@ -4824,12 +4847,15 @@ do_spec_1 (spec, inswitch, soft_matched_part)
                  do_spec_1 (" ", 0, NULL);
                }
 
-             if (target_system_root_changed)
+             if (target_system_root_changed ||
+                 (target_system_root && target_sysroot_hdrs_suffix))
                {
                  do_spec_1 ("-isysroot", 1, NULL);
                  /* Make this a separate argument.  */
                  do_spec_1 (" ", 0, NULL);
                  do_spec_1 (target_system_root, 1, NULL);
+                 if (target_sysroot_hdrs_suffix)
+                   do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
                  do_spec_1 (" ", 0, NULL);
                }
 
@@ -5040,8 +5066,13 @@ do_spec_1 (spec, inswitch, soft_matched_part)
            /* We assume there is a directory
               separator at the end of this string.  */
            if (target_system_root)
-             obstack_grow (&obstack, target_system_root, 
-                           strlen (target_system_root));
+             { 
+               obstack_grow (&obstack, target_system_root, 
+                             strlen (target_system_root));
+               if (target_sysroot_suffix)
+                 obstack_grow (&obstack, target_sysroot_suffix, 
+                               strlen (target_sysroot_suffix));
+             }
            break;
 
          case 'S':
@@ -6124,6 +6155,26 @@ main (argc, argv)
        }
     }
 
+  /* Process sysroot_suffix_spec. */
+  if (*sysroot_suffix_spec != 0
+      && do_spec_2 (sysroot_suffix_spec) == 0)
+    {
+      if (argbuf_index > 1)
+        error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
+      else if (argbuf_index == 1)
+        target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
+    }
+
+  /* Process sysroot_hdrs_suffix_spec. */
+  if (*sysroot_hdrs_suffix_spec != 0
+      && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
+    {
+      if (argbuf_index > 1)
+        error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
+      else if (argbuf_index == 1)
+        target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
+    }
+
   /* Look for startfiles in the standard places.  */
   if (*startfile_prefix_spec != 0
       && do_spec_2 (startfile_prefix_spec) == 0