clang.bbclass: Export YOCTO_ALTERNATE_LIBDIR and YOCTO_ALTERNATE_EXE_PATH

These variables are used during target package compiles in packages
which user llvm-config e.g. libclc

Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit 7008a2e1ee0755d5c35210f0bf5077f37126bf23)

1 files changed, 9 insertions, 0 deletions

diff --git a/classes/clang.bbclass b/classes/clang.bbclass
index 02dbfe1..2a19e2f 100644
--- a/classes/clang.bbclass
+++ b/classes/clang.bbclass
@@ -97,6 +97,15 @@ OVERRIDES =. "${@['', 'toolchain-${TOOLCHAIN}:']['${TOOLCHAIN}' != '']}"
 OVERRIDES =. "${@['', 'runtime-${RUNTIME}:']['${RUNTIME}' != '']}"
 OVERRIDES[vardepsexclude] += "TOOLCHAIN RUNTIME"
 
+YOCTO_ALTERNATE_EXE_PATH[export] = "0"
+YOCTO_ALTERNATE_LIBDIR[export] = "0"
+
+YOCTO_ALTERNATE_EXE_PATH:class-target = "${STAGING_BINDIR}/llvm-config"
+YOCTO_ALTERNATE_LIBDIR:class-target = "${base_libdir}"
+
+YOCTO_ALTERNATE_EXE_PATH:class-target[export] = "1"
+YOCTO_ALTERNATE_LIBDIR:class-target[export] = "1"
+
 #DEPENDS:append:toolchain-clang:class-target = " clang-cross-${TARGET_ARCH} "
 #DEPENDS:remove:toolchain-clang:allarch = "clang-cross-${TARGET_ARCH}"