cross-canadian: Fix TUNE_PKGARCH references

The cross-canadian compilers are now build once per architecture but were being
installed into tune specific locations which is incorrect. This adjusts things
so they are make TARGET_ARCH specific. We gain the tune specific parts from the
target sysroot which remains tune specific, the compiler and tools are independent
ot that.

binutils/gcc require sysroot options but since we reset at runtime, these shouldn't
have dependencies in the sstate checksums. They are therefore also excluded.

With these patches, switching machines does not result in a rebuild of *-cross-canadian
and the compiler is correctly located and referenced in the target images.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-cross-canadian.inc b/meta/recipes-devtools/gcc/gcc-cross-canadian.inc
index 5908e72099..64bb6ba722 100644
--- a/meta/recipes-devtools/gcc/gcc-cross-canadian.inc
+++ b/meta/recipes-devtools/gcc/gcc-cross-canadian.inc
@@ -14,6 +14,11 @@ EXTRA_OECONF_PATHS = "--with-gxx-include-dir=${SDKPATH}/sysroots/${TUNE_PKGARCH}
                       --with-build-time-tools=${STAGING_DIR_NATIVE}${prefix_native}/${TARGET_SYS}/bin \
                       --with-sysroot=${SDKPATH}/sysroots/${TUNE_PKGARCH}${TARGET_VENDOR}-${TARGET_OS} \
                       --with-build-sysroot=${STAGING_DIR_TARGET}"
+# We have to point gcc at a sysroot but we don't need to rebuild if this changes
+# e.g. we switch between different machines with different tunes.
+EXTRA_OECONF_PATHS[vardepsexclude] = "TUNE_PKGARCH"
+TARGET_ARCH[vardepsexclude] = "TUNE_ARCH"
+get_gcc_fpu_setting[vardepvalue] = ""
 
 #
 # gcc-cross looks and finds these in ${exec_prefix} but we're not so lucky