buildroot/package/gettext-tiny/0001-libintl-Fix-format-not-a-string-literal-error-for-gc.patch

From 34f631ce80700aa1eaadc032026f12f86584bd8a Mon Sep 17 00:00:00 2001
From: Vadim Kochan <vadim4j@gmail.com>
Date: Mon, 31 Dec 2018 00:40:29 +0200
Subject: [PATCH] gettext-tiny: Fix format not a string literal error

Add 'format_arg' attribute for the functions which may return string
as formatted parameter, otherwise it fails to compile on high versions
of gcc.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
---
 include/libintl.h | 27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

diff --git a/include/libintl.h b/include/libintl.h
index b1af2b4..1883e1b 100644
--- a/include/libintl.h
+++ b/include/libintl.h
@@ -4,12 +4,27 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
-char *gettext(const char *msgid);
-char *dgettext(const char *domainname, const char *msgid);
-char *dcgettext(const char *domainname, const char *msgid, int category);
-char *ngettext(const char *msgid1, const char *msgid2, unsigned long n);
-char *dngettext(const char *domainname, const char *msgid1, const char *msgid2, unsigned long n);
-char *dcngettext(const char *domainname, const char *msgid1, const char *msgid2, unsigned long n, int category);
+/* _INTL_MAY_RETURN_STRING_ARG(n) declares that the given function may return
+ *    its n-th argument literally.  This enables GCC to warn for example about
+ *       printf (gettext ("foo %y")).  */
+#if defined __GNUC__ && __GNUC__ >= 3 && !(defined __APPLE_CC__ && __APPLE_CC__ > 1 && defined __cplusplus)
+# define _INTL_MAY_RETURN_STRING_ARG(n) __attribute__ ((__format_arg__ (n)))
+#else
+# define _INTL_MAY_RETURN_STRING_ARG(n)
+#endif
+
+char *gettext(const char *msgid)
+	_INTL_MAY_RETURN_STRING_ARG(1);
+char *dgettext(const char *domainname, const char *msgid)
+	_INTL_MAY_RETURN_STRING_ARG(2);
+char *dcgettext(const char *domainname, const char *msgid, int category)
+	_INTL_MAY_RETURN_STRING_ARG(2);
+char *ngettext(const char *msgid1, const char *msgid2, unsigned long n)
+	_INTL_MAY_RETURN_STRING_ARG(1) _INTL_MAY_RETURN_STRING_ARG(2);
+char *dngettext(const char *domainname, const char *msgid1, const char *msgid2, unsigned long n)
+	_INTL_MAY_RETURN_STRING_ARG(2) _INTL_MAY_RETURN_STRING_ARG(3);
+char *dcngettext(const char *domainname, const char *msgid1, const char *msgid2, unsigned long n, int category)
+	_INTL_MAY_RETURN_STRING_ARG(2) _INTL_MAY_RETURN_STRING_ARG(3);
 
 char *textdomain(const char *domainname);
 char *bind_textdomain_codeset(const char *domainname, const char *codeset);
-- 
2.14.1