diff --git a/build/php.m4 b/build/php.m4 index dc373be3512f4..67cfa562bb308 100644 --- a/build/php.m4 +++ b/build/php.m4 @@ -1740,7 +1740,7 @@ AC_DEFUN([PHP_PROG_RE2C],[ esac PHP_SUBST([RE2C]) - AS_VAR_SET([RE2C_FLAGS], [m4_normalize([$2])]) + AS_VAR_SET([RE2C_FLAGS], [m4_normalize(["$2"])]) PHP_SUBST([RE2C_FLAGS]) ])