configure.ac: Use POSIX compatible regex for word boundary.

Fixes build error on Mac OS X.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100236
Suggested-by: Jan Beich <jbeich@freebsd.org>
Suggested-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Acked-by: Emil Velikov <emil.velikov@collabora.com>

diff --git a/configure.ac b/configure.ac
index 8c9d756..dbf0bf8 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -907,19 +907,19 @@ llvm_add_target() {
 # 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 \
+    echo " `$1` " | sed -E \
         -e 's/[[[:space:]]]+-m[[^[:space:]]]*//g' \
-        -e 's/[[[:space:]]]+-DNDEBUG\>//g' \
-        -e 's/[[[:space:]]]+-D_GNU_SOURCE\>//g' \
-        -e 's/[[[:space:]]]+-pedantic\>//g' \
+        -e 's/[[[:space:]]]+-DNDEBUG[[[:space:]]]//g' \
+        -e 's/[[[:space:]]]+-D_GNU_SOURCE[[[:space:]]]//g' \
+        -e 's/[[[:space:]]]+-pedantic[[[:space:]]]//g' \
         -e 's/[[[:space:]]]+-W[[^[:space:]]]*//g' \
         -e 's/[[[:space:]]]+-O[[^[:space:]]]*//g' \
         -e 's/[[[:space:]]]+-g[[^[:space:]]]*//g' \
-        -e 's/-fno-rtti\>/-Fno-rtti/g' \
+        -e 's/-fno-rtti[[[:space:]]]/-Fno-rtti /g' \
         -e 's/[[[:space:]]]+-f[[^[:space:]]]*//g' \
-        -e 's/-Fno-rtti\>/-fno-rtti/g' \
-        -e 's/^[[[:space:]]]//'
+        -e 's/-Fno-rtti[[[:space:]]]/-fno-rtti /g' \
+        -e 's/^[[[:space:]]]//' \
+        -e 's/[[[:space:]]]$//'
 }
 
 llvm_set_environment_variables() {