Bug 769772 - Print compiler version being used and drop checks for ll…

…vm-gcc and old versions of clang. r=khuey.

config/autoconf.mk.in

@@ -131,7 +131,6 @@ MOZ_WAVE = @MOZ_WAVE@
 MOZ_MEDIA = @MOZ_MEDIA@
 MOZ_VORBIS = @MOZ_VORBIS@
 MOZ_TREMOR = @MOZ_TREMOR@
-MOZ_NO_THEORA_ASM = @MOZ_NO_THEORA_ASM@
 MOZ_OPUS = @MOZ_OPUS@
 MOZ_WEBM = @MOZ_WEBM@
 MOZ_MEDIA_PLUGINS = @MOZ_MEDIA_PLUGINS@

configure.in

@@ -1026,42 +1026,10 @@ fi
 
 fi # COMPILE_ENVIRONMENT
 
-dnl clang prior to 2.9 (including Xcode 4) does not support all the
-dnl constructs required by the libtheora inline asm. This is used to
-dnl detect and disable it
-AC_MSG_CHECKING([whether the C compiler is clang older than version 2.9])
-AC_LANG_SAVE
-AC_LANG_C
-AC_TRY_COMPILE([
-#if defined(__clang__)
-# if __clang_major__<2 || (__clang_major__==2 && __clang_minor__<9)
-#  error "clang older than 2.9 detected"
-# endif
-#endif
-               ],
-               [],
-               result="no",
-               result="yes")
-AC_LANG_RESTORE
-AC_MSG_RESULT([$result])
-if test "$result" = "yes"; then
-  MOZ_NO_THEORA_ASM=1
-fi
-dnl XCode 4.2 also shipped an llvm-gcc which couldn't compile
-dnl the libtheora inline asm.
-AC_MSG_CHECKING([bad gcc versions])
-if `$CC --version | grep -q "Apple Inc. build 5658"`; then
-  AC_MSG_RESULT([Apple build 5658])
-  MOZ_NO_THEORA_ASM=1
-else
-  AC_MSG_RESULT([we're ok])
-fi
-
-AC_SUBST(MOZ_NO_THEORA_ASM)
-
-if test "x$MOZ_NO_THEORA_ASM" = x1; then
-  AC_MSG_WARN([Disabling libtheora inline assembly])
-fi
+AC_MSG_CHECKING([compiler version])
+# Just print it so it shows up in the logs.
+cc_version=$($CC --version)
+AC_MSG_RESULT([$cc_version])
 
 if test -n "$MAKE"; then
   if test `echo $MAKE | grep -c make.py` != 1; then

media/libtheora/lib/Makefile.in

@@ -21,15 +21,13 @@ DEFINES += -DTHEORA_DISABLE_ENCODE
 ifeq ($(findstring 86,$(OS_TEST)), 86)
 ifneq ($(OS_ARCH),SunOS)
 ifneq ($(OS_ARCH)$(OS_TEST),WINNTx86_64)
-ifndef MOZ_NO_THEORA_ASM
 DEFINES += -DOC_X86_ASM
 ifeq (64,$(findstring 64,$(OS_TEST)))
 DEFINES += -DOC_X86_64_ASM
 endif
 endif
 endif
 endif
-endif
 
 VPATH := $(srcdir)
 
@@ -63,7 +61,6 @@ CSRCS += \
   $(NULL)
 endif
 else
-ifndef MOZ_NO_THEORA_ASM
 VPATH += $(srcdir)/x86
 
 CSRCS += \
@@ -76,7 +73,6 @@ CSRCS += \
   $(NULL)
 endif
 endif
-endif
 
 ifdef GNU_AS
 ifeq ($(findstring arm,$(OS_TEST)), arm)