* config/rs6000/t-darwin (TARGET_LIBGCC2_CFLAGS): Build

[pf3gnuchains/gcc-fork.git] / gcc / config / rs6000 / darwin.h

diff --git a/gcc/config/rs6000/darwin.h b/gcc/config/rs6000/darwin.h
index b8cbdcc..ed6e42a 100644 (file)
--- a/gcc/config/rs6000/darwin.h
+++ b/gcc/config/rs6000/darwin.h
@@ -96,6 +96,18 @@ do {                                                                 \
       rs6000_default_long_calls = 1;                                   \
       target_flags |= MASK_SOFT_FLOAT;                                 \
     }                                                                  \
+  /* Unless the user (not the configurer) has explicitly overridden    \
+     it with -mcpu=G3 or -mno-altivec, then 10.5+ targets default to   \
+     G4 unless targetting the kernel.  */                              \
+  if (!flag_mkernel                                                    \
+      && !flag_apple_kext                                              \
+      && darwin_macosx_version_min                                     \
+      && strverscmp (darwin_macosx_version_min, "10.5") >= 0           \
+      && ! (target_flags_explicit & MASK_ALTIVEC)                      \
+      && ! rs6000_select[1].string)                                    \
+    {                                                                  \
+      target_flags |= MASK_ALTIVEC;                                    \
+    }                                                                  \
 } while(0)
 
 #define C_COMMON_OVERRIDE_OPTIONS do {                                 \
@@ -126,6 +138,8 @@ do {                                                                        \
   %{static: %{Zdynamic: %e conflicting code gen style switches are used}}\
   %{!mkernel:%{!static:%{!mdynamic-no-pic:-fPIC}}}"
 
+#define DARWIN_ARCH_SPEC "%{m64:ppc64;:ppc}"
+
 #define DARWIN_SUBARCH_SPEC "                  \
  %{m64: ppc64}                                 \
  %{!m64:                                       \
@@ -151,7 +165,8 @@ do {                                                                        \
 
 #undef SUBTARGET_EXTRA_SPECS
 #define SUBTARGET_EXTRA_SPECS                  \
-  { "darwin_arch", "%{m64:ppc64;:ppc}" },      \
+  DARWIN_EXTRA_SPECS                            \
+  { "darwin_arch", DARWIN_ARCH_SPEC },         \
   { "darwin_crt2", DARWIN_CRT2_SPEC },         \
   { "darwin_subarch", DARWIN_SUBARCH_SPEC },