Fixing a few thing to make AC_CHECK_CC_OPTION work.

diff --git a/acinclude.m4 b/acinclude.m4
index 82f3894449acf8b0e3a97794a8cd0dc41d79f921..04d7f17d10d322e0c04d02202d46ff6172926265 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -9,9 +9,17 @@ dnl
 AC_DEFUN(AC_CHECK_CC_OPTION,[
   echo "main(){return 0;}" > conftest.$ac_ext
   opt="$1"
-  var=`echo -n $opt|tr -c a-zA-Z0-9 _`
+  if echo '\c' | grep -s c >/dev/null 2>&1
+  then
+    echo_n="-n"
+    echo_c=""
+  else
+    echo_n=""
+    echo_c='\c'
+  fi
+  var=`echo $echo_n "$opt$echo_c"|tr -c a-zA-Z0-9 _`
   AC_MSG_CHECKING([if compiler supports -$1 really])
-  ac_compile='${CC-cc} -$opt -c $CFLAGS $CPPFLAGS conftest.$ac_ext 2>&1'
+  ac_compile="${CC-cc} -$opt -c $CFLAGS $CPPFLAGS conftest.$ac_ext 2>&1"
   if eval $ac_compile | egrep "$opt" > /dev/null 2>&1 ; then
     eval php_cc_$var=no
        AC_MSG_RESULT(no)