runc/containerd: fix build with go 1.9.x

go 1.9.x was triggering linkage errors on some build hosts due to
missing symbols.

   | tmp/work/core2-64-poky-linux/runc-docker/1.0.0-rc5+gitAUTOINC+4fc53a81fb-r0/recipe-sysroot/usr/lib/../lib/libc.a(dl-reloc-static-pie.o): In function `elf_mac:
   | /usr/src/debug/glibc/2.27-r0/git/sysdeps/x86_64/dl-machine.h:59: undefined reference to `_DYNAMIC'
   | tmp/work/core2-64-poky-linux/runc-docker/1.0.0-rc5+gitAUTOINC+4fc53a81fb-r0/recipe-sysroot/usr/lib/../lib/libc.a(dl-reloc-static-pie.o): In function `elf_get:
   | /usr/src/debug/glibc/2.27-r0/git/elf/get-dynamic-info.h:48: undefined reference to `_DYNAMIC'

By ensuring that our sysroot provided go binary and build flags make
it into the build enviroment we can build properly with 1.9 and 1.10

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/recipes-containers/containerd/containerd.inc b/recipes-containers/containerd/containerd.inc
index 9f66e46e..eb47cc9e 100644
--- a/recipes-containers/containerd/containerd.inc
+++ b/recipes-containers/containerd/containerd.inc
@@ -53,6 +53,8 @@ do_compile() {
     export CGO_CFLAGS="${CFLAGS} --sysroot=${STAGING_DIR_TARGET}"
     export CGO_LDFLAGS="${LDFLAGS} --sysroot=${STAGING_DIR_TARGET}"
     export BUILDTAGS="no_btrfs static_build netgo"
+    export CFLAGS="${CFLAGS}"
+    export LDFLAGS="${LDFLAGS}"
 
     cd ${S}/src/import
     oe_runmake binaries