toolchain: Include ./include/fortify for external musl toolchain

When building with an external toolcahin with musl also include
./include/fortify by default. This is also done when we build with the
internal toolchain using musl libc.

Without this extra include the fortify source feature is not working
when using an external musl toolchain. All binaries were compiled
without fortify source when an external musl toolchain was used. All
binaries release done by the OpenWrt project use the internal toolcahin
where fortify source is working.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit b21ddbfa18cd1e437e31dc0fa29408721a186c2a)

diff --git a/toolchain/Config.in b/toolchain/Config.in
index 366f5c8b486c462372ae3f1f187a363c249c531e..f02790ba5283eb7776c72773cb527253926d0673 100644 (file)
--- a/toolchain/Config.in
+++ b/toolchain/Config.in
@@ -169,6 +169,7 @@ menuconfig EXTERNAL_TOOLCHAIN
                string
                prompt "Toolchain include path"  if DEVEL
                depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
+               default "./usr/include ./include/fortify ./include" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
                default "./usr/include ./include"
                help
                  Specify additional directories searched for header files (override