diff --git a/configure.ac b/configure.ac
index 1c48777486f629413533cd8dd7706daa1d285af8..27063808d3bac93670984ebc12e844d3a62968c7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -13,10 +13,6 @@ AC_USE_SYSTEM_EXTENSIONS([_GNU_SOURCE])
release_date=`doc/mdate-sh configure.ac`
AC_SUBST([RELEASE_DATE], $release_date)
-# Check SSE, SSE2 and SSE3 support
-AX_EXT
-CFLAGS="$CFLAGS $SIMD_FLAGS"
-
# Set compiler compatibility flags
AC_PROG_CC_C99
AM_PROG_CC_C_O
diff --git a/m4/ax_ext.m4 b/m4/ax_ext.m4
deleted file mode 100644
index 9a288bcf5359be53d14814437c1bd84a460d145f..0000000000000000000000000000000000000000
--- a/m4/ax_ext.m4
+++ /dev/null
@@ -1,124 +0,0 @@
-# ===========================================================================
-# http://autoconf-archive.cryp.to/ax_ext.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-# AX_EXT
-#
-# DESCRIPTION
-#
-# Find supported SIMD extensions by requesting cpuid. When an SIMD
-# extension is found, the -m"simdextensionname" is added to SIMD_FLAGS
-# (only if compilator support it) (ie : if "sse2" is available "-msse2" is
-# added to SIMD_FLAGS)
-#
-# This macro calls:
-#
-# AC_SUBST(SIMD_FLAGS)
-#
-# And defines:
-#
-# HAVE_MMX / HAVE_SSE / HAVE_SSE2 / HAVE_SSE3 / HAVE_SSSE3
-#
-# LAST MODIFICATION
-#
-# 2008-04-12
-# 2009-04-23 Mark Asbach <markasbach@users.sourceforge.net<
-# Renamed cache variables so they adhere naming convention
-# Corrected M4 quoting for AX_CHECK_COMPILER_FLAGS
-#
-# COPYLEFT
-#
-# Copyright (c) 2008 Christophe Tournayre <turn3r@users.sourceforge.net>
-#
-# Copying and distribution of this file, with or without modification, are
-# permitted in any medium without royalty provided the copyright notice
-# and this notice are preserved.
-
-AC_DEFUN([AX_EXT],
-[
- AC_REQUIRE([AX_GCC_X86_CPUID])
-
- AX_GCC_X86_CPUID([0x00000001])
- if test "$ax_cv_gcc_x86_cpuid_0x00000001" != "unknown"; then
- ecx=`echo $ax_cv_gcc_x86_cpuid_0x00000001 | cut -d ":" -f 3`
- edx=`echo $ax_cv_gcc_x86_cpuid_0x00000001 | cut -d ":" -f 4`
- fi
-
- AC_CACHE_CHECK([whether mmx is supported], [ax_cv_have_mmx_ext],
- [
- ax_cv_have_mmx_ext=no
- if test "$ax_cv_gcc_x86_cpuid_0x00000001" != "unknown"; then
- if test "$((0x$edx>>23&0x01))" = 1; then
- ax_cv_have_mmx_ext=yes
- fi
- fi
- ])
-
- AC_CACHE_CHECK([whether sse is supported], [ax_cv_have_sse_ext],
- [
- ax_cv_have_sse_ext=no
- if test "$ax_cv_gcc_x86_cpuid_0x00000001" != "unknown"; then
- if test "$((0x$edx>>25&0x01))" = 1; then
- ax_cv_have_sse_ext=yes
- fi
- fi
- ])
-
- AC_CACHE_CHECK([whether sse2 is supported], [ax_cv_have_sse2_ext],
- [
- ax_cv_have_sse2_ext=no
- if test "$ax_cv_gcc_x86_cpuid_0x00000001" != "unknown"; then
- if test "$((0x$edx>>26&0x01))" = 1; then
- ax_cv_have_sse2_ext=yes
- fi
- fi
- ])
-
- AC_CACHE_CHECK([whether sse3 is supported], [ax_cv_have_sse3_ext],
- [
- ax_cv_have_sse3_ext=no
- if test "$ax_cv_gcc_x86_cpuid_0x00000001" != "unknown"; then
- if test "$((0x$ecx&0x01))" = 1; then
- ax_cv_have_sse3_ext=yes
- fi
- fi
- ])
-
- AC_CACHE_CHECK([whether ssse3 is supported], [ax_cv_have_ssse3_ext],
- [
- ax_cv_have_ssse3_ext=no
- if test "$ax_cv_gcc_x86_cpuid_0x00000001" != "unknown"; then
- if test "$((0x$ecx>>9&0x01))" = 1; then
- ax_cv_have_ssse3_ext=yes
- fi
- fi
- ])
-
- if test "$ax_cv_have_mmx_ext" = yes; then
- AC_DEFINE(HAVE_MMX,,[Support mmx instructions])
- AX_CHECK_COMPILE_FLAG([-mmmx], [SIMD_FLAGS="$SIMD_FLAGS -mmmx"], [])
- fi
-
- if test "$ax_cv_have_sse_ext" = yes; then
- AC_DEFINE(HAVE_SSE,,[Support SSE (Streaming SIMD Extensions) instructions])
- AX_CHECK_COMPILE_FLAG([-msse], [SIMD_FLAGS="$SIMD_FLAGS -msse"], [])
- fi
-
- if test "$ax_cv_have_sse2_ext" = yes; then
- AC_DEFINE(HAVE_SSE2,,[Support SSE2 (Streaming SIMD Extensions 2) instructions])
- AX_CHECK_COMPILE_FLAG([-msse2], [SIMD_FLAGS="$SIMD_FLAGS -msse2"], [])
- fi
-
- if test "$ax_cv_have_sse3_ext" = yes; then
- AC_DEFINE(HAVE_SSE3,,[Support SSE3 (Streaming SIMD Extensions 3) instructions])
- AX_CHECK_COMPILE_FLAG([-msse3], [SIMD_FLAGS="$SIMD_FLAGS -msse3"], [])
- fi
-
- if test "$ax_cv_have_ssse3_ext" = yes; then
- AC_DEFINE(HAVE_SSSE3,,[Support SSSE3 (Supplemental Streaming SIMD Extensions 3) instructions])
- fi
-
- AC_SUBST(SIMD_FLAGS)
-])
diff --git a/m4/ax_gcc_x86_cpuid.m4 b/m4/ax_gcc_x86_cpuid.m4
deleted file mode 100644
index 792e68403fa5b0f6b995c34b0f8f9bc02b21092c..0000000000000000000000000000000000000000
--- a/m4/ax_gcc_x86_cpuid.m4
+++ /dev/null
@@ -1,65 +0,0 @@
-dnl @synopsis AX_GCC_X86_CPUID(OP)
-dnl @summary run x86 cpuid instruction OP using gcc inline assembler
-dnl @category Misc
-dnl
-dnl On Pentium and later x86 processors, with gcc or a compiler that
-dnl has a compatible syntax for inline assembly instructions, run
-dnl a small program that executes the cpuid instruction with
-dnl input OP. This can be used to detect the CPU type.
-dnl
-dnl On output, the values of the eax, ebx, ecx, and edx registers
-dnl are stored as hexadecimal strings as "eax:ebx:ecx:edx" in
-dnl the cache variable ax_cv_gcc_x86_cpuid_OP.
-dnl
-dnl If the cpuid instruction fails (because you are running a cross-compiler,
-dnl or because you are not using gcc, or because you are on a processor
-dnl that doesn't have this instruction), ax_cv_gcc_x86_cpuid_OP is set
-dnl to the string "unknown".
-dnl
-dnl This macro mainly exists to be used in AX_GCC_ARCHFLAG.
-dnl
-dnl @version 2008-12-06
-dnl @license GPLWithACException
-dnl @author Steven G. Johnson <stevenj@alum.mit.edu> and Matteo Frigo.
-AC_DEFUN([AX_GCC_X86_CPUID],
-[AC_REQUIRE([AC_PROG_CC])
-AC_LANG_PUSH([C])
-AC_CACHE_CHECK([for x86 cpuid $1 output], [ax_cv_gcc_x86_cpuid_$1],
- [AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>], [
- int op = $1, eax, ebx, ecx, edx;
- FILE *f;
-#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64)
- __asm__("push %%rbx\n\t"
- "cpuid\n\t"
- "pop %%rbx"
- : "=a" (eax), "=c" (ecx), "=d" (edx)
- : "a" (op));
- __asm__("push %%rbx\n\t"
- "cpuid\n\t"
- "mov %%rbx, %%rax\n\t"
- "pop %%rbx"
- : "=a" (ebx), "=c" (ecx), "=d" (edx)
- : "a" (op));
-#else
- __asm__("push %%ebx\n\t"
- "cpuid\n\t"
- "pop %%ebx"
- : "=a" (eax), "=c" (ecx), "=d" (edx)
- : "a" (op));
- __asm__("push %%ebx\n\t"
- "cpuid\n\t"
- "mov %%ebx, %%eax\n\t"
- "pop %%ebx"
- : "=a" (ebx), "=c" (ecx), "=d" (edx)
- : "a" (op));
-#endif
- f = fopen("conftest_cpuid", "w"); if (!f) return 1;
- fprintf(f, "%x:%x:%x:%x\n", eax, ebx, ecx, edx);
- fclose(f);
- return 0;
-])],
- [ax_cv_gcc_x86_cpuid_$1=`cat conftest_cpuid`; rm -f conftest_cpuid],
- [ax_cv_gcc_x86_cpuid_$1=unknown; rm -f conftest_cpuid],
- [ax_cv_gcc_x86_cpuid_$1=unknown])])
-AC_LANG_POP([C])
-])