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-rw-r--r--package/libselinux/0001-libselinux-src-regex.c-support-old-compilers-for-the.patch47
1 files changed, 47 insertions, 0 deletions
diff --git a/package/libselinux/0001-libselinux-src-regex.c-support-old-compilers-for-the.patch b/package/libselinux/0001-libselinux-src-regex.c-support-old-compilers-for-the.patch
new file mode 100644
index 0000000000..3bda607512
--- /dev/null
+++ b/package/libselinux/0001-libselinux-src-regex.c-support-old-compilers-for-the.patch
@@ -0,0 +1,47 @@
+From e0803c0bdbb1abf06b6b5bb1b52fdb733505b8f7 Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Wed, 25 Jan 2017 22:41:02 +1300
+Subject: [PATCH] src/regex.c: support old compilers for the endian
+ check
+
+libselinux 2.6 has added some code in regex.c that uses __BYTE_ORDER__
+to determine the system endianness. Unfortunately, this definition
+provided directly by the compiler doesn't exist in older gcc versions
+such as gcc 4.4.
+
+In order to address this, this commit extends the logic to use
+<endian.h> definitions if __BYTE_ORDER__ is not provided by the
+compiler. This allows libselinux to build properly with gcc 4.4.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ src/regex.c | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+diff --git a/src/regex.c b/src/regex.c
+index a3b427b..0c5ad27 100644
+--- a/src/regex.c
++++ b/src/regex.c
+@@ -13,7 +13,18 @@
+ #endif
+
+ #ifndef __BYTE_ORDER__
+-#error __BYTE_ORDER__ not defined. Unable to determine endianness.
++
++/* If the compiler doesn't define __BYTE_ORDER__, try to use the C
++ * library <endian.h> header definitions. */
++#include <endian.h>
++#ifndef __BYTE_ORDER
++#error Neither __BYTE_ORDER__ nor __BYTE_ORDER defined. Unable to determine endianness.
++#endif
++
++#define __ORDER_LITTLE_ENDIAN __LITTLE_ENDIAN
++#define __ORDER_BIG_ENDIAN __BIG_ENDIAN
++#define __BYTE_ORDER__ __BYTE_ORDER
++
+ #endif
+
+ #ifdef USE_PCRE2
+--
+2.7.4
+
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