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-rw-r--r--meta/classes/ccache.bbclass6
1 files changed, 6 insertions, 0 deletions
diff --git a/meta/classes/ccache.bbclass b/meta/classes/ccache.bbclass
index 76c8828619..9713feabcb 100644
--- a/meta/classes/ccache.bbclass
+++ b/meta/classes/ccache.bbclass
@@ -2,6 +2,12 @@ CCACHE = "${@bb.utils.which(d.getVar('PATH'), 'ccache') and 'ccache '}"
export CCACHE_DIR ?= "${TMPDIR}/ccache/${MULTIMACH_HOST_SYS}/${PN}"
CCACHE_DISABLE[unexport] = "1"
+# We need to stop ccache considering the current directory or the
+# debug-prefix-map target directory to be significant when calculating
+# its hash. Without this the cache would be invalidated every time
+# ${PV} or ${PR} change.
+export CCACHE_NOHASHDIR ?= "1"
+
DEPENDS_append_class-target = " ccache-native"
DEPENDS[vardepvalueexclude] = " ccache-native"