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configure: add --disable-<avx2|sse4.1|sse2>

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Change-Id: I06e73d1f6b5204398b2160b4c0b2c330a6939458
This commit is contained in:
James Zern 2015-03-25 23:14:17 -07:00
parent 2fc8b658b7
commit 46305ca649
1 changed files with 55 additions and 36 deletions
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25
configure.ac
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@ -80,6 +80,13 @@ AS_IF([test "$GCC" = "yes" ], [
AC_SUBST([AM_CFLAGS])
dnl === Check for machine specific flags
AC_ARG_ENABLE([avx2],
AS_HELP_STRING([--disable-avx2],
[Disable detection of AVX2 support
@<:@default=auto@:>@]))
AS_IF([test "x$enable_avx2" != "xno" -a "x$enable_sse4_1" != "xno" \
-a "x$enable_sse2" != "xno"], [
TEST_AND_ADD_CFLAGS([AVX2_FLAGS], [-mavx2])
AS_IF([test -n "$AVX2_FLAGS"], [
SAVED_CFLAGS=$CFLAGS
@ -95,8 +102,14 @@ AS_IF([test -n "$AVX2_FLAGS"], [
#endif
])
CFLAGS=$SAVED_CFLAGS])
AC_SUBST([AVX2_FLAGS])
AC_SUBST([AVX2_FLAGS])])
AC_ARG_ENABLE([sse4.1],
AS_HELP_STRING([--disable-sse4.1],
[Disable detection of SSE4.1 support
@<:@default=auto@:>@]))
AS_IF([test "x$enable_sse4_1" != "xno" -a "x$enable_sse2" != "xno"], [
TEST_AND_ADD_CFLAGS([SSE41_FLAGS], [-msse4.1])
AS_IF([test -n "$SSE41_FLAGS"], [
SAVED_CFLAGS=$CFLAGS
@ -106,8 +119,14 @@ AS_IF([test -n "$SSE41_FLAGS"], [
[Set to 1 if SSE4.1 is supported])],
[SSE41_FLAGS=""])
CFLAGS=$SAVED_CFLAGS])
AC_SUBST([SSE41_FLAGS])
AC_SUBST([SSE41_FLAGS])])
AC_ARG_ENABLE([sse2],
AS_HELP_STRING([--disable-sse2],
[Disable detection of SSE2 support
@<:@default=auto@:>@]))
AS_IF([test "x$enable_sse2" != "xno"], [
TEST_AND_ADD_CFLAGS([SSE2_FLAGS], [-msse2])
AS_IF([test -n "$SSE2_FLAGS"], [
SAVED_CFLAGS=$CFLAGS
@ -117,7 +136,7 @@ AS_IF([test -n "$SSE2_FLAGS"], [
[Set to 1 if SSE2 is supported])],
[SSE2_FLAGS=""])
CFLAGS=$SAVED_CFLAGS])
AC_SUBST([SSE2_FLAGS])
AC_SUBST([SSE2_FLAGS])])
dnl === CLEAR_LIBVARS([var_pfx])
dnl === Clears <var_pfx>_{INCLUDES,LIBS}.