Only complain about lack of g++ on linux for now.

diff --git a/configure.ac b/configure.ac
index f70bbaeab1ae98cae53c5a37fcdf2334726b6da7..c9e4256d958515f36bfb0a373d932257034f8ea0 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -197,10 +197,17 @@ if test x"$enable_simd" != x"no"; then
     # For x86-64 SIMD, g++ is also required
     if test x"$build_cpu" = x"x86_64"; then
        if test x"$CXX" = x"g++"; then
+           # AC_MSG_RESULT() called below
            SIMD="$SIMD x86_64"
        else
            AC_MSG_RESULT(no)
-           AC_MSG_ERROR(Failed to find g++ for SIMD speedups. Use --disable-simd to continue without it.)
+           case "$host_os" in
+           *linux*)
+               AC_MSG_ERROR(Failed to find g++ for SIMD speedups. Use --disable-simd to continue without it.)
+               ;;
+           *)
+               ;;
+           esac
        fi
     fi
 fi
@@ -208,7 +215,7 @@ fi
 if test x"$SIMD" != x""; then
     SIMD=`echo "$SIMD" | sed -e 's/^ *//'`
     AC_MSG_RESULT([yes ($SIMD)])
-       AC_DEFINE(HAVE_SIMD, 1, [Define to 1 to enable SIMD optimizations])
+    AC_DEFINE(HAVE_SIMD, 1, [Define to 1 to enable SIMD optimizations])
     SIMD=`echo "$SIMD" | sed -e 's/[[^ ]]\+/$(SIMD_&)/g'`
     # We only use g++ for its target attribute dispatching, disable unneeded bulky features
     CXXFLAGS="$CXXFLAGS -fno-exceptions -fno-rtti"