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go-env.eclass: Export PKG_CONFIG

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Go files may have cgo specifiers that use pkg-config to search for libraries to
link. An example of this is:

    // #cgo pkg-config: gpgme

One case where this occurs is when building one of the go deps of
app-containers/podman-4.9.2.

If the ebuild doesn't export the correct PKG_CONFIG, this results in build
failures during cross-compilation. Go will find the host (CBUILD) pkg-config
instead of the CHOST version which performs the lookup in the correct sysroot.

Fix cross-compilation by exporting PKG_CONFIG in go-env_set_compile_environment.

Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
Closes: https://github.com/gentoo/gentoo/pull/35721
Signed-off-by: Sam James <sam@gentoo.org>
This commit is contained in:
Jeremi Piotrowski
2024-03-12 10:35:48 +01:00
committed by Sam James
parent 42b343515e
commit ced2f28eb7
1 changed files with 1 additions and 1 deletions
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eclass/go-env.eclass
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@@ -27,7 +27,7 @@ inherit toolchain-funcs
# (e.g. "emerge-aarch64-cross-linux-gnu foo" run on x86_64 will emerge "foo" for x86_64
# instead of aarch64)
go-env_set_compile_environment() {
tc-export CC CXX
tc-export CC CXX PKG_CONFIG
export GOARCH="$(go-env_goarch)"
use arm && export GOARM=$(go-env_goarm)