--- a/configure.ac
+++ b/configure.ac
@@ -119,6 +119,7 @@ AS_IF([test "x$intel_cet_enabled" = "xyes"], [
 ])
 
 # check if LD -z options are supported
+orig_LDFLAGS="${LDFLAGS}"
 LDFLAGS="\
 -Wl,-z,noexecstack \
 -Wl,-z,relro \
@@ -283,6 +284,7 @@ else
   AM_CONDITIONAL(WITH_SHANI, test "x" = "y")
   AM_CONDITIONAL(DARWIN, test "x" = "y")
 fi
+LDFLAGS="${orig_LDFLAGS}"
 
 # Check for header files
 AC_CHECK_HEADERS([limits.h stdint.h stdlib.h string.h])