fixincludes:

	* mkheaders.in: Fix headers for each multilib required.

gcc:
	PR bootstrap/31020
	* configure.ac (CROSS_SYSTEM_HEADER_DIR, build_system_header_dir):
	Define using $${sysroot_headers_suffix}.
	* configure: Regenerate.
	* cppdefault.c (cpp_include_defaults): Make FIXED_INCLUDE_DIR a
	multilib-suffixed directory if SYSROOT_HEADERS_SUFFIX_SPEC
	defined.
	* doc/invoke.texi (-print-sysroot-headers-suffix): Document.
	* gcc.c (print_sysroot_headers_suffix): New.
	(option_map): Include --print-sysroot-headers-suffix.
	(display_help): Mention -print-sysroot-headers-suffix.
	(process_command): Handle -print-sysroot-headers-suffix.
	(do_spec_1): Append multilib directory to include-fixed path if
	sysroot suffixes in use.
	(main): Handle -print-sysroot-headers-suffix.
	* Makefile.in (start.encap): Don't depend on xlimits.h
	(xlimits.h): Remove.
	(stmp-int-hdrs): Don't depend on xlimits.h.  Inline generation of
	limits.h for each multilib in fixinc_list.
	(fixinc_list, s-fixinc_list): New.
	(stmp-fixinc): Depend on fixinc_list.  If not copying headers,
	generate them for each multilib in fixinc_list.
	(stmp-fixproto): Use include-fixed.  Run fixproto for each
	multilib in fixinc_list.
	(mostlyclean): Don't remove xlimits.h.
	(clean): Remove include-fixed.
	(real-install-headers-tar, real-install-headers-cpio,
	real-install-headers-cp): Don't copy include, only include-fixed.
	(install-mkheaders): Depend on fixinc_list.  Don't depend on
	xlimits.h.  Save limits.h files for each multilib in fixinc_list.
	Always save mkinstalldirs.  Preserve ${sysroot_headers_suffix} in
	SYSTEM_HEADER_DIR setting in mkheaders.conf.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@122620 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 27 insertions, 0 deletions

diff --git a/gcc/gcc.c b/gcc/gcc.c
index 9cdf7c5faf4..7a5056a5ba0 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -168,6 +168,11 @@ static int print_multi_lib;
 
 static int print_help_list;
 
+/* Flag saying to print the sysroot suffix used for searching for
+   headers.  */
+
+static int print_sysroot_headers_suffix;
+
 /* Flag indicating whether we should print the command and arguments */
 
 static int verbose_flag;
@@ -1125,6 +1130,7 @@ static const struct option_map option_map[] =
    {"--print-multi-directory", "-print-multi-directory", 0},
    {"--print-multi-os-directory", "-print-multi-os-directory", 0},
    {"--print-prog-name", "-print-prog-name=", "aj"},
+   {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
    {"--profile", "-p", 0},
    {"--profile-blocks", "-a", 0},
    {"--quiet", "-q", 0},
@@ -3193,6 +3199,7 @@ display_help (void)
   -print-multi-lib         Display the mapping between command line options and\n\
                            multiple library search directories\n"), stdout);
   fputs (_("  -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
+  fputs (_("  -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout);
   fputs (_("  -Wa,<options>            Pass comma-separated <options> on to the assembler\n"), stdout);
   fputs (_("  -Wp,<options>            Pass comma-separated <options> on to the preprocessor\n"), stdout);
   fputs (_("  -Wl,<options>            Pass comma-separated <options> on to the linker\n"), stdout);
@@ -3637,6 +3644,8 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"
 	print_multi_directory = 1;
       else if (! strcmp (argv[i], "-print-multi-os-directory"))
 	print_multi_os_directory = 1;
+      else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
+	print_sysroot_headers_suffix = 1;
       else if (! strncmp (argv[i], "-Wa,", 4))
 	{
 	  int prev, j;
@@ -4066,6 +4075,8 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"
 	;
       else if (! strcmp (argv[i], "-print-multi-os-directory"))
 	;
+      else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
+	;
       else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
 	{
 	  target_system_root = argv[i] + strlen ("--sysroot=");
@@ -4978,6 +4989,9 @@ do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
 			     spec_path, &info);
 
 	      info.append = "include-fixed";
+	      if (*sysroot_hdrs_suffix_spec)
+		info.append = concat (info.append, dir_separator_str,
+				      multilib_dir, NULL);
 	      info.append_len = strlen (info.append);
 	      for_each_path (&include_prefixes, false, info.append_len,
 			     spec_path, &info);
@@ -6394,6 +6408,19 @@ main (int argc, char **argv)
       return (0);
     }
 
+  if (print_sysroot_headers_suffix)
+    {
+      if (*sysroot_hdrs_suffix_spec)
+	{
+	  printf("%s\n", target_sysroot_hdrs_suffix);
+	  return (0);
+	}
+      else
+	/* The error status indicates that only one set of fixed
+	   headers should be built.  */
+	fatal ("not configured with sysroot headers suffix");
+    }
+
   if (print_help_list)
     {
       display_help ();