[Buildroot] [PATCH] gcc: 4.9.2: Add patch to remove a wrong header

Ezequiel Garcia ezequiel at vanguardiasur.com.ar
Wed Feb 11 12:51:48 UTC 2015

This commit adds a patch to gcc removing a unistd.h header include
in libgcc/config/nios2/linux-atomic.c

The file is built as part of GCC first stage (host-gcc-initial),
and so the header is not accesible. Given the header is not needed
it's fine to simply remove it.

Chung-Lin Tang (GCC nios2 maintainer) confirmed patch is good:
Thanks for noticing, this part appears to be unneeded now that Nios II
uses a kernel provided user function for Linux atomic operations. I'll
remove the include, and the #define's as well in upstream GCC.

This commit is required to build a Nios-II internal toolchain.

Signed-off-by: Ezequiel Garcia <ezequiel at vanguardiasur.com.ar>
 package/gcc/4.9.2/920-libgcc-remove-unistd-header.patch | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 package/gcc/4.9.2/920-libgcc-remove-unistd-header.patch

diff --git a/package/gcc/4.9.2/920-libgcc-remove-unistd-header.patch b/package/gcc/4.9.2/920-libgcc-remove-unistd-header.patch
new file mode 100644
index 0000000..df5372b
--- /dev/null
+++ b/package/gcc/4.9.2/920-libgcc-remove-unistd-header.patch
@@ -0,0 +1,12 @@
+Upstream status: In progress
+--- a/libgcc/config/nios2/linux-atomic.c
++++ b/libgcc/config/nios2/linux-atomic.c
+@@ -20,7 +20,6 @@
+ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ <http://www.gnu.org/licenses/>.  */
+-#include <asm/unistd.h>
+ #define EFAULT  14
+ #define EBUSY   16
+ #define ENOSYS  38

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