use __attribute__unused__ to silence -Wunused-but-set-variable

1 files changed, 10 insertions, 2 deletions

diff --git a/regexec.c b/regexec.c
index fd90ad7aa3..6b32aa2ba3 100644
--- a/regexec.c
+++ b/regexec.c
@@ -123,11 +123,19 @@
 
 /* these are unrolled below in the CCC_TRY_XXX defined */
 #define LOAD_UTF8_CHARCLASS(class,str) STMT_START { \
-    if (!CAT2(PL_utf8_,class)) { bool ok; ENTER; save_re_context(); ok=CAT2(is_utf8_,class)((const U8*)str); assert(ok); LEAVE; } } STMT_END
+    if (!CAT2(PL_utf8_,class)) { \
+	bool ok; \
+	ENTER; save_re_context(); \
+	ok=CAT2(is_utf8_,class)((const U8*)str); \
+	assert(ok); LEAVE; } } STMT_END
 
 /* Doesn't do an assert to verify that is correct */
 #define LOAD_UTF8_CHARCLASS_NO_CHECK(class) STMT_START { \
-    if (!CAT2(PL_utf8_,class)) { bool throw_away; ENTER; save_re_context(); throw_away = CAT2(is_utf8_,class)((const U8*)" "); LEAVE; } } STMT_END
+    if (!CAT2(PL_utf8_,class)) { \
+	bool throw_away __attribute__unused__; \
+	ENTER; save_re_context(); \
+	throw_away = CAT2(is_utf8_,class)((const U8*)" "); \
+	LEAVE; } } STMT_END
 
 #define LOAD_UTF8_CHARCLASS_ALNUM() LOAD_UTF8_CHARCLASS(alnum,"a")
 #define LOAD_UTF8_CHARCLASS_DIGIT() LOAD_UTF8_CHARCLASS(digit,"0")