shithub: opus-tools

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Avoid forcing SSE on x86, provide a configure option for now.

x86_64 will still get SSE regardless of how the knob is set.

--- a/configure.ac

+++ b/configure.ac

@@ -107,10 +107,10 @@

 if test "x$CFLAGS" = "x-g -O2"; then

 saved_CFLAGS="$CFLAGS"

 CFLAGS="-O3 -ffast-math"

-AC_MSG_CHECKING([if ${CC} supports -O3 -ffast-math])

+AC_MSG_CHECKING([if ${CC} supports -O3 -g -ffast-math])

 AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])],

       [ AC_MSG_RESULT([yes])

-        saved_CFLAGS="-O3 -ffast-math" ],

+        saved_CFLAGS="-O3 -g -ffast-math" ],

         AC_MSG_RESULT([no]))

 CFLAGS="$saved_CFLAGS"

 fi

@@ -191,14 +191,19 @@

 esac

 if test "x$on_x86" = "xyes"; then

+ac_enable_sse="no"

+AC_ARG_ENABLE(sse, AS_HELP_STRING([--enable-sse],[Build binaries that require SSE/SSE2]),

+[if test "$enableval" = yes; then

+  ac_enable_sse="yes"

 saved_CFLAGS="$CFLAGS"

-CFLAGS="$CFLAGS -msse"

-AC_MSG_CHECKING([if ${CC} supports -msse])

+CFLAGS="$CFLAGS -msse -msse2"

+AC_MSG_CHECKING([if ${CC} supports -msse -msse2])

 AC_LINK_IFELSE([AC_LANG_SOURCE([void main(void){char foo;}])],

       [ AC_MSG_RESULT([yes])

-        SSE="-msse"; ac_build_sse=yes ],

+        SSE="-msse -msse2"; ac_build_sse=yes ],

         AC_MSG_RESULT([no]))

 CFLAGS="$saved_CFLAGS $SSE"

+fi])

 fi

 dnl Enable stack-protector-all only on x86 where it's well supported.