gcc: add patches for or1k specific gcc version

This commit adds a number of patches from package/gcc/5.4.0 to
package/gcc/musl-5.4.0, so that they apply to the or1k specific gcc
version. All patches from package/gcc/5.4.0 that are not architecture
specific and not related to the musl C library have been added to
package/gcc/musl-5.4.0/.

Note that doing a symbolic link does not work, as some patches from
package/gcc/5.4.0 do not apply as-is to the or1k gcc version.

The most important patch is 850-libstdcxx-uclibc-c99.patch, which fixes
a number of build issues.

Fixes:

  http://autobuild.buildroot.net/results/eebf4ce5ecb896e54912cfa21268e81ff5fb6593/
  (alljoyn)

  http://autobuild.buildroot.net/results/8dbf406898a59e36ac6a1e16f543b6260da775c8/
  (jsoncpp)

  http://autobuild.buildroot.net/results/206fbd5473c8c6840489990cb2552566c62ef3c8/
  (dawgic)

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/package/gcc/musl-5.4.0/930-libgcc-disable-split-stack-nothreads.patch b/package/gcc/musl-5.4.0/930-libgcc-disable-split-stack-nothreads.patch
new file mode 100644
index 0000000000..07f9a7395b
--- /dev/null
+++ b/package/gcc/musl-5.4.0/930-libgcc-disable-split-stack-nothreads.patch
@@ -0,0 +1,14 @@
+disable split-stack for non-thread builds
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.3.0.orig/libgcc/config/t-stack gcc-5.3.0/libgcc/config/t-stack
+--- gcc-5.3.0.orig/libgcc/config/t-stack	2010-10-01 21:31:49.000000000 +0200
++++ gcc-5.3.0/libgcc/config/t-stack	2016-03-07 03:25:32.000000000 +0100
+@@ -1,4 +1,6 @@
+ # Makefile fragment to provide generic support for -fsplit-stack.
+ # This should be used in config.host for any host which supports
+ # -fsplit-stack.
++ifeq ($(enable_threads),yes)
+ LIB2ADD_ST += $(srcdir)/generic-morestack.c $(srcdir)/generic-morestack-thread.c
++endif