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| author | Mike Frysinger <vapier@gentoo.org> | 2013-10-30 13:20:52 +1000 |
|---|---|---|
| committer | Allan McRae <allan@archlinux.org> | 2013-10-30 17:32:08 +1000 |
| commit | cb8a6dbd176ee59d61068bed92e2c8d22bd28b13 (patch) | |
| tree | 9ead2c7bd7a279a0669afe49476dd1da4b3c8da9 /sysdeps/x86_64/configure.ac | |
| parent | 36a4953a1dbc2b1994c1df0478c1c89a41398dba (diff) | |
| download | glibc-cb8a6dbd176ee59d61068bed92e2c8d22bd28b13.tar.gz glibc-cb8a6dbd176ee59d61068bed92e2c8d22bd28b13.tar.xz glibc-cb8a6dbd176ee59d61068bed92e2c8d22bd28b13.zip | |
rename configure.in to configure.ac
Autoconf has been deprecating configure.in for quite a long time. Rename all our configure.in and preconfigure.in files to .ac. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'sysdeps/x86_64/configure.ac')
| -rw-r--r-- | sysdeps/x86_64/configure.ac | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac new file mode 100644 index 0000000000..c682f93c3e --- /dev/null +++ b/sysdeps/x86_64/configure.ac @@ -0,0 +1,57 @@ +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/x86_64. + +AC_CHECK_HEADER([cpuid.h], , + [AC_MSG_ERROR([gcc must provide the <cpuid.h> header])], + [/* No default includes. */]) + +dnl Check if -msse4 works. +AC_CACHE_CHECK(for SSE4 support, libc_cv_cc_sse4, [dnl +LIBC_TRY_CC_OPTION([-msse4], [libc_cv_cc_sse4=yes], [libc_cv_cc_sse4=no]) +]) +if test $libc_cv_cc_sse4 = yes; then + AC_DEFINE(HAVE_SSE4_SUPPORT) +fi +LIBC_CONFIG_VAR([config-cflags-sse4], [$libc_cv_cc_sse4]) + +dnl Check if -mavx works. +AC_CACHE_CHECK(for AVX support, libc_cv_cc_avx, [dnl +LIBC_TRY_CC_OPTION([-mavx], [libc_cv_cc_avx=yes], [libc_cv_cc_avx=no]) +]) +if test $libc_cv_cc_avx = yes; then + AC_DEFINE(HAVE_AVX_SUPPORT) +fi +LIBC_CONFIG_VAR([config-cflags-avx], [$libc_cv_cc_avx]) + +dnl Check if -msse2avx works. +AC_CACHE_CHECK(for AVX encoding of SSE instructions, libc_cv_cc_sse2avx, [dnl +LIBC_TRY_CC_OPTION([-msse2avx], + [libc_cv_cc_sse2avx=yes], + [libc_cv_cc_sse2avx=no]) +]) +if test $libc_cv_cc_sse2avx = yes; then + AC_DEFINE(HAVE_SSE2AVX_SUPPORT) +fi +LIBC_CONFIG_VAR([config-cflags-sse2avx], [$libc_cv_cc_sse2avx]) + +dnl Check if -mfma4 works. +AC_CACHE_CHECK(for FMA4 support, libc_cv_cc_fma4, [dnl +LIBC_TRY_CC_OPTION([-mfma4], [libc_cv_cc_fma4=yes], [libc_cv_cc_fma4=no]) +]) +if test $libc_cv_cc_fma4 = yes; then + AC_DEFINE(HAVE_FMA4_SUPPORT) +fi +LIBC_CONFIG_VAR([have-mfma4], [$libc_cv_cc_fma4]) + +dnl Check if -mno-vzeroupper works. +AC_CACHE_CHECK(for -mno-vzeroupper support, libc_cv_cc_novzeroupper, [dnl +LIBC_TRY_CC_OPTION([-mno-vzeroupper], + [libc_cv_cc_novzeroupper=yes], + [libc_cv_cc_novzeroupper=no]) +]) +LIBC_CONFIG_VAR([config-cflags-novzeroupper], [$libc_cv_cc_novzeroupper]) + +dnl It is always possible to access static and hidden symbols in an +dnl position independent way. +AC_DEFINE(PI_STATIC_AND_HIDDEN) +# work around problem with autoconf and empty lines at the end of files |