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| author | Erik de Castro Lopo <erikd@mega-nerd.com> | 2013-09-15 09:42:29 +1000 |
|---|---|---|
| committer | Erik de Castro Lopo <erikd@mega-nerd.com> | 2013-09-15 09:42:36 +1000 |
| commit | b72540b43c1fa2ad878cc6f93e55f7b497dcd18e (patch) | |
| tree | 3c8bdffbe401d48b7280657bd84be1e346ac774f /configure.ac | |
| parent | d11c66ffcedc7e7b5cd8607e39bdbcfb86f27053 (diff) | |
| download | flac-b72540b43c1fa2ad878cc6f93e55f7b497dcd18e.tar.gz | |
configure.ac : Prepare for x86_64 initrinsics based optimisations.
Detect presence of <x86intrin.h> and set FLAC__HAS_X86INTRIN.
Define FLAC__CPU_X86_64 when CPU is x96_64.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index 220fd558..2c4e5271 100644 --- a/configure.ac +++ b/configure.ac @@ -59,7 +59,7 @@ AC_C_INLINE AC_C_VARARRAYS AC_C_TYPEOF -AC_CHECK_HEADERS([stdint.h inttypes.h byteswap.h sys/param.h termios.h]) +AC_CHECK_HEADERS([stdint.h inttypes.h byteswap.h sys/param.h termios.h x86intrin.h]) AC_HEADER_TIOCGWINSZ @@ -102,11 +102,18 @@ asm_optimisation=no case "$host_cpu" in x86_64) if test $ac_cv_sizeof_voidp = 4 ; then + # This must be a 32 bit user space running on 64 bit kernel so treat + # this as ia32. cpu_ia32=true AC_DEFINE(FLAC__CPU_IA32) AH_TEMPLATE(FLAC__CPU_IA32, [define if building for ia32/i386]) - asm_optimisation=$asm_opt + else + # x86_64 user space and kernel. + cpu_x86_64=true + AC_DEFINE(FLAC__CPU_X86_64) + AH_TEMPLATE(FLAC__CPU_X86_64, [define if building for x86_64]) fi + asm_optimisation=$asm_opt ;; i*86) cpu_ia32=true @@ -127,10 +134,13 @@ case "$host_cpu" in asm_optimisation=$asm_opt ;; esac +AM_CONDITIONAL(FLAC__CPU_X86_64, test "x$cpu_x86_64" = xtrue) AM_CONDITIONAL(FLaC__CPU_IA32, test "x$cpu_ia32" = xtrue) AM_CONDITIONAL(FLaC__CPU_PPC, test "x$cpu_ppc" = xtrue) AM_CONDITIONAL(FLaC__CPU_SPARC, test "x$cpu_sparc" = xtrue) +AC_DEFINE_UNQUOTED([FLAC__HAS_X86INTRIN],${HAVE_X86INTRIN_H}, [Set to 1 if <x86intrin.h> is available.]) + case "$host" in i386-*-openbsd3.[[0-3]]) OBJ_FORMAT=aoutb ;; *-*-cygwin|*mingw*) OBJ_FORMAT=win32 ;; |