From 9af0aa32c1e32e7ac841c624e0c4f383430e2efd Mon Sep 17 00:00:00 2001
From: Alexey Yakovenko <wakeroid@gmail.com>
Date: Sun, 13 Sep 2009 10:13:43 +0200
Subject: desktop icons, launcher update, minor libsidplay2 patches

---
 acinclude.m4 | 94 +++++++++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 83 insertions(+), 11 deletions(-)

(limited to 'acinclude.m4')

diff --git a/acinclude.m4 b/acinclude.m4
index 2fc21e91..81aeedfb 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -108,13 +108,30 @@ AC_LANG_POP([C])
 ])
 
 
-
 # ===========================================================================
-#                 http://autoconf-archive.cryp.to/ax_ext.html
+#             http://www.nongnu.org/autoconf-archive/ax_ext.html
 # ===========================================================================
 #
+# SYNOPSIS
 #
-# COPYLEFT
+#   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
+#
+# LICENSE
 #
 #   Copyright (c) 2008 Christophe Tournayre <turn3r@users.sourceforge.net>
 #
@@ -124,28 +141,83 @@ AC_LANG_POP([C])
 
 AC_DEFUN([AX_EXT],
 [
-  #AC_REQUIRE([AX_GCC_X86_CPUID])
+  AC_REQUIRE([AX_GCC_X86_CPUID])
 
   AX_GCC_X86_CPUID(0x00000001)
   ecx=`echo $ax_cv_gcc_x86_cpuid_0x00000001 | cut -d ":" -f 3`
   edx=`echo $ax_cv_gcc_x86_cpuid_0x00000001 | cut -d ":" -f 4`
-
   if test "x$edx" = "xunknown"; then
+    ax_have_mmx_ext=no
+    ax_have_sse_ext=no
+    ax_have_sse_ext=no
     ax_have_sse2_ext=no
-
+    ax_have_sse3_ext=no
+    ax_have_ssse3_ext=no
   else
-      AC_CACHE_CHECK([whether sse2 is supported], [ax_have_sse2_ext],
+
+     AC_CACHE_CHECK([whether mmx is supported], [ax_have_mmx_ext],
+      [
+        ax_have_mmx_ext=no
+        if test "$((0x$edx>>23&0x01))" = 1; then
+          ax_have_mmx_ext=yes
+        fi
+      ])
+
+     AC_CACHE_CHECK([whether sse is supported], [ax_have_sse_ext],
+      [
+        ax_have_sse_ext=no
+        if test "$((0x$edx>>25&0x01))" = 1; then
+          ax_have_sse_ext=yes
+        fi
+      ])
+
+     AC_CACHE_CHECK([whether sse2 is supported], [ax_have_sse2_ext],
       [
         ax_have_sse2_ext=no
         if test "$((0x$edx>>26&0x01))" = 1; then
           ax_have_sse2_ext=yes
         fi
       ])
-  fi
 
-  if test "$ax_have_sse2_ext" = yes; then
-    AC_DEFINE(HAVE_SSE2, , [Support SSE2 (Streaming SIMD Extensions 2) instructions])
-    AX_CHECK_COMPILER_FLAGS(-msse2, SIMD_FLAGS="$SIMD_FLAGS -msse2", [])
+     AC_CACHE_CHECK([whether sse3 is supported], [ax_have_sse3_ext],
+      [
+        ax_have_sse3_ext=no
+        if test "$((0x$ecx&0x01))" = 1; then
+          ax_have_sse3_ext=yes
+        fi
+      ])
+
+     AC_CACHE_CHECK([whether ssse3 is supported], [ax_have_ssse3_ext],
+      [
+        ax_have_ssse3_ext=no
+        if test "$((0x$ecx>>9&0x01))" = 1; then
+          ax_have_ssse3_ext=yes
+        fi
+      ])
+
+      if test "$ax_have_mmx_ext" = yes; then
+        AC_DEFINE(HAVE_MMX,,[Support mmx instructions])
+        AX_CHECK_COMPILER_FLAGS(-mmmx, SIMD_FLAGS="$SIMD_FLAGS -mmmx", [])
+      fi
+
+      if test "$ax_have_sse_ext" = yes; then
+        AC_DEFINE(HAVE_SSE,,[Support SSE (Streaming SIMD Extensions) instructions])
+        AX_CHECK_COMPILER_FLAGS(-msse, SIMD_FLAGS="$SIMD_FLAGS -msse", [])
+      fi
+
+      if test "$ax_have_sse2_ext" = yes; then
+        AC_DEFINE(HAVE_SSE2,,[Support SSE2 (Streaming SIMD Extensions 2) instructions])
+        AX_CHECK_COMPILER_FLAGS(-msse2, SIMD_FLAGS="$SIMD_FLAGS -msse2", [])
+      fi
+
+      if test "$ax_have_sse3_ext" = yes; then
+        AC_DEFINE(HAVE_SSE3,,[Support SSE3 (Streaming SIMD Extensions 3) instructions])
+        AX_CHECK_COMPILER_FLAGS(-msse3, SIMD_FLAGS="$SIMD_FLAGS -msse3", [])
+      fi
+
+      if test "$ax_have_ssse3_ext" = yes; then
+        AC_DEFINE(HAVE_SSSE3,,[Support SSSE3 (Supplemental Streaming SIMD Extensions 3) instructions])
+      fi
   fi
 
   AC_SUBST(SIMD_FLAGS)
-- 
cgit v1.2.3