configure.ac: look for whole words in LLVM flags, not prefixes

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

diff --git a/configure.ac b/configure.ac
index ec06d37..c5cc249 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1644,13 +1644,14 @@ AC_ARG_WITH([llvm-prefix],
 # Call this inside ` ` to get the return value.
 # $1 is the llvm-config command with arguments.
 strip_unwanted_llvm_flags() {
+    # Use \> (marks the end of the word)
     echo `$1` | sed \
        -e 's/-DNDEBUG\>//g' \
-       -e 's/-pedantic//g' \
-       -e 's/-Wcovered-switch-default//g' \
-       -e 's/-O.//g' \
-       -e 's/-g//g' \
-       -e 's/-Wall//g'
+       -e 's/-pedantic\>//g' \
+       -e 's/-Wcovered-switch-default\>//g' \
+       -e 's/-O.\>//g' \
+       -e 's/-g\>//g' \
+       -e 's/-Wall\>//g'
 }