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Description: Add dummy -arch option with simplistic check.
Author: Heiko Przybyl <zuxez@cs.tu-berlin.de>
diff -pruN gcc-5664.orig/gcc/gcc.c gcc-5664/gcc/gcc.c
--- gcc-5664.orig/gcc/gcc.c 2010-09-21 22:28:11.000000000 +0200
+++ gcc-5664/gcc/gcc.c 2010-09-21 22:28:24.000000000 +0200
@@ -88,6 +88,8 @@ compilation is specified by a string cal
#include "flags.h"
#include "opts.h"
+#include <mach-o/arch.h>
+
/* By default there is no special suffix for target executables. */
/* FIXME: when autoconf is fixed, remove the host check - dj */
#if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
--- gcc-5664/gcc/gcc.c.orig 2010-09-22 01:30:04.000000000 +0200
+++ gcc-5664/gcc/gcc.c 2010-09-22 01:36:52.000000000 +0200
@@ -1401,6 +1401,39 @@ translate_options (int *argcp, const cha
nskip += 1;
else if (! strcmp (p, "Xassembler"))
nskip += 1;
+ /* GENTOO_PORTAGE Allow but filter -arch. */
+ if (! strcmp (p, "arch")) {
+ if (i + 1 == argc)
+ fatal ("argument to `-arch' is missing");
+ /* Check current arch vs. given arch if possible. */
+ const NXArchInfo *ai = NXGetLocalArchInfo();
+ if (ai) {
+ /* Returns the most generic setting */
+ /* aka "i386", "x86_64", "ppc", "ppc64", "arm". */
+ const NXArchInfo *gai = NXGetArchInfoFromCpuType(ai->cputype, CPU_SUBTYPE_MULTIPLE);
+ if (gai) {
+ const char *name = gai->name;
+#ifdef __LP64__
+ /* Make sure x64 on 32bit kernel is set correctly. */
+ if (gai->cputype == CPU_TYPE_I386) {
+ name = "x86_64";
+ }
+ else if (gai->cputype == CPU_TYPE_POWERPC) {
+ name = "ppc64";
+ }
+#endif
+ if (strcmp(name, argv[i + 1]) != 0) {
+ fatal ("`-arch %s' does not match current compiler arch `%s'",
+ argv[i + 1], name);
+ }
+ }
+ }
+
+ /* Skip argument. */
+ i += 2;
+ /* Don't add option to the new env. */
+ nskip = 0;
+ }
/* Watch out for an option at the end of the command line that
is missing arguments, and avoid skipping past the end of the
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