From: Jim Meyering <meyering@redhat.com>
Date: Fri, 30 Dec 2011 21:48:38 +0000 (+0100)
Subject: build: avoid spurious test.c warning with -Wsuggest-attribute=pure
X-Git-Tag: v8.15~22
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9be9d120f01fa65be33ab98d0c728a7e849c5d4b;p=thirdparty%2Fcoreutils.git

build: avoid spurious test.c warning with -Wsuggest-attribute=pure

* src/test.c: Add pragma to suppress gcc-4.6.2's warning that
"advance" might be candidate for attribute 'pure'.
---

diff --git a/src/test.c b/src/test.c
index a5df7c8dcc..00f97fb991 100644
--- a/src/test.c
+++ b/src/test.c
@@ -20,6 +20,12 @@
 /* Define TEST_STANDALONE to get the /bin/test version.  Otherwise, you get
    the shell builtin version. */
 
+/* Without this pragma, gcc 4.6.2 20111027 mistakenly suggests that
+   the advance function might be candidate for attribute 'pure'.  */
+#if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__
+# pragma GCC diagnostic ignored "-Wsuggest-attribute=pure"
+#endif
+
 #include <config.h>
 #include <stdio.h>
 #include <sys/types.h>