X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=configure.ac;h=c0656f4fb3362b70bacc057857922526f6c59903;hb=eda4b58b50509dc8ad0428a46e20f6c5cf516d58;hp=7794541964c4e9e215171c7d81fa84759f7c76ea;hpb=54b434b1b5055f934230fe04fad35b01642b8488;p=elogind.git

diff --git a/configure.ac b/configure.ac
index 779454196..c0656f4fb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -156,6 +156,10 @@ CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
         -fdata-sections \
         -fstack-protector \
         --param=ssp-buffer-size=4])
+AS_CASE([$CFLAGS], [*-O[[12345\ ]]*],
+        [CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
+               -flto])],
+        [AC_MSG_RESULT([skipping -flto, optimization not enabled])])
 AC_SUBST([OUR_CFLAGS], "$with_cflags $address_sanitizer_cflags")
 
 AS_CASE([$CFLAGS], [*-O[[12345\ ]]*],