[OE-core] [PATCH v5 20/26] go.bbclass: clean up CGO_xxx settings

[Otavio Salvador]

From: Matt Madison <matt at madison.systems>

* use conditional assignment for  the CGO_xxx
  variables, so they can be overridden more easily
* remove the TOOLCHAIN_OPTIONS and TARGET_CC_ARCH
  references, since those are already present in
  CC and CXX
* remove the TARGET_ prefix so the values are
  appropriate for native, nativesdk, etc. builds
* move the GOROOT export away from the CGO settings
  and closer to its definition

Signed-off-by: Matt Madison <matt at madison.systems>
Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
---

Changes in v6:
- new patch

Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 meta/classes/go.bbclass | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/meta/classes/go.bbclass b/meta/classes/go.bbclass
index c0b117d155..8fb41e5c09 100644
--- a/meta/classes/go.bbclass
+++ b/meta/classes/go.bbclass
@@ -21,6 +21,7 @@ GO_PARALLEL_BUILD ?= "${@get_go_parallel_make(d)}"
 
 GOROOT_class-native = "${STAGING_LIBDIR_NATIVE}/go"
 GOROOT = "${STAGING_LIBDIR}/go"
+export GOROOT
 export GOROOT_FINAL = "${libdir}/go"
 
 DEPENDS_GOLANG_class-target = "virtual/${TARGET_PREFIX}go virtual/${TARGET_PREFIX}go-runtime"
@@ -35,12 +36,12 @@ export GO = "${HOST_PREFIX}go"
 GOTOOLDIR = "${STAGING_LIBDIR_NATIVE}/${TARGET_SYS}/go/pkg/tool/${BUILD_GOTUPLE}"
 GOTOOLDIR_class-native = "${STAGING_LIBDIR_NATIVE}/go/pkg/tool/${BUILD_GOTUPLE}"
 export GOTOOLDIR
-export CGO_ENABLED = "1"
-export GOROOT
-export CGO_CFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_CFLAGS}"
-export CGO_CPPFLAGS = "${TARGET_CPPFLAGS}"
-export CGO_CXXFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_CXXFLAGS}"
-export CGO_LDFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_LDFLAGS}"
+
+export CGO_ENABLED ?= "1"
+export CGO_CFLAGS ?= "${CFLAGS}"
+export CGO_CPPFLAGS ?= "${CPPFLAGS}"
+export CGO_CXXFLAGS ?= "${CXXFLAGS}"
+export CGO_LDFLAGS ?= "${LDFLAGS}"
 
 GO_INSTALL ?= "${GO_IMPORT}/..."
 GO_INSTALL_FILTEROUT ?= "${GO_IMPORT}/vendor/"
-- 
2.14.1