gcc-runtime, libgcc: Symlink c++ header and startup files in target_triplet for SDK use

We build SDKs such that gcc-cross-candian is built for only one
target *-*-linux and then use -muclibc or -mmusl to let it compile
code for other libc variants. This works fine when libc = glibc
however it does not work for c++ programs when libc != glibc since
there are c++ headers installed under ${includedir}/c++/${BINV}/${TARGET_SYS}
which is fine when gcc-runtime and gcc-cross-candian uses same --target options
gxx includedir searches in right triplet, but it fails with musl/uclibc
since gcc will look for glibc based triplet but gcc-runtime will install
them under musl/uclibc triplet.

This patch symlinks the musl/uclibc triplet to glibc triplet when libc != glibc

This fixes SDKs for musl/uclibc

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/classes/cross-canadian.bbclass b/meta/classes/cross-canadian.bbclass
index e07b1bdb6c..d35451dbf2 100644
--- a/meta/classes/cross-canadian.bbclass
+++ b/meta/classes/cross-canadian.bbclass
@@ -68,6 +68,7 @@ python () {
     elif tarch == "mips64":
         d.appendVar("CANADIANEXTRAOS", " linux-gnun32 linux-uclibcn32 linux-musln32")
     if tarch == "arm" or tarch == "armeb":
+        d.appendVar("CANADIANEXTRAOS", " linux-musleabi linux-uclibceabi")
         d.setVar("TARGET_OS", "linux-gnueabi")
     else:
         d.setVar("TARGET_OS", "linux")