[OE-core] [PATCH v2 6/8] go.bbclass: Use a global Go build flags

[Otavio Salvador]

We now use a GOBUILDFLAGS to provide a global variable to control the
build flags to be given to Go.

This change is based on the meta-golang[1] layer. Thanks to Matt
Madison <matt at madison.systems> for his work on this.

1. https://github.com/madisongh/meta-golang

Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
---

Changes in v2:
- Remove -x flag (madisongh)
- Remove GO_EXTLDFLAGS for now (madisongh)

 meta/classes/go.bbclass | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/meta/classes/go.bbclass b/meta/classes/go.bbclass
index e073cb91b5..720a504cd8 100644
--- a/meta/classes/go.bbclass
+++ b/meta/classes/go.bbclass
@@ -5,6 +5,8 @@ GOROOT = "${STAGING_LIBDIR_NATIVE}/${TARGET_SYS}/go"
 GOBIN_FINAL_class-native = "${GOROOT_FINAL}/bin"
 GOBIN_FINAL = "${GOROOT_FINAL}/${GO_BUILD_BINDIR}"
 
+export GOBUILDFLAGS ?= "-v"
+
 export GOOS = "${TARGET_GOOS}"
 export GOARCH = "${TARGET_GOARCH}"
 export GOARM = "${TARGET_GOARM}"
@@ -32,7 +34,7 @@ GO_INSTALL ?= "${GO_IMPORT}/..."
 do_go_compile() {
 	GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go env
 	if [ -n "${GO_INSTALL}" ]; then
-		GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go install -v ${GO_INSTALL}
+		GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go install ${GOBUILDFLAGS} ${GO_INSTALL}
 	fi
 }
 
-- 
2.14.1