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-rw-r--r--configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 812cf652aa5..c7212b7bc4b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1583,6 +1583,7 @@ strip_unwanted_llvm_flags() {
# Use \> (marks the end of the word)
echo `$1` | sed \
-e 's/-DNDEBUG\>//g' \
+ -e 's/-D_GNU_SOURCE\>//g' \
-e 's/-pedantic\>//g' \
-e 's/-Wcovered-switch-default\>//g' \
-e 's/-O.\>//g' \