properly define the sse optimization on x86 flag; #1032

[netdata.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 9fba9bc29b3f9f2e90cc105febba0784fb44a540..97e88e9ded44136443d6bb18a8796d57fbea95ba 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@
 AC_PREREQ(2.60)
 
 define([VERSION_MAJOR], [1])
-define([VERSION_MINOR], [2])
+define([VERSION_MINOR], [3])
 define([VERSION_FIX], [1])
 define([VERSION_NUMBER], VERSION_MAJOR[.]VERSION_MINOR[.]VERSION_FIX)
 define([VERSION_SUFFIX], [_master])
@@ -72,6 +72,12 @@ AC_ARG_WITH(
        ,
        [with_user="nobody"]
 )
+AC_ARG_ENABLE(
+       [x86-sse],
+       [AS_HELP_STRING([--disable-x86-sse], [SSE/SS2 optimizations on x86 @<:@default enabled@:>@])],
+       ,
+       [enable_x86_sse="yes"]
+)
 
 ACX_PTHREAD(, [AC_MSG_ERROR([Cannot initialize pthread environment])])
 LIBS="${PTHREAD_LIBS} ${LIBS}"
@@ -82,6 +88,21 @@ AC_TYPE_UINT8_T
 AC_TYPE_UINT16_T
 AC_TYPE_UINT32_T
 AC_C_INLINE
+AC_FUNC_STRERROR_R
+AC_C__GENERIC
+AC_C___ATOMIC
+AC_CHECK_SIZEOF([void *])
+AC_CANONICAL_HOST
+
+AC_ARG_VAR([SSE_CANDIDATE], [C compiler flags for SSE])
+AS_CASE([$host_cpu],
+       [i?86], [SSE_CANDIDATE="yes"]
+)
+AC_SUBST([SSE_CANDIDATE])
+if test "${SSE_CANDIDATE}" = "yes" -a "${enable_x86_sse}" = "yes"; then
+       opt="-msse2 -mfpmath=sse"
+       AX_CHECK_COMPILE_FLAG($opt, [CFLAGS="$CFLAGS $opt"], [])
+fi
 
 AC_ARG_VAR([MATH_CFLAGS], [C compiler flags for math])
 AC_ARG_VAR([MATH_LIBS], [linker flags for math])