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-rw-r--r--share/mk/bsd.compiler.mk9
1 files changed, 9 insertions, 0 deletions
diff --git a/share/mk/bsd.compiler.mk b/share/mk/bsd.compiler.mk
index 46cc8c37d198..3ba5130b81f3 100644
--- a/share/mk/bsd.compiler.mk
+++ b/share/mk/bsd.compiler.mk
@@ -31,11 +31,20 @@ __<bsd.compiler.mk>__:
_exported_vars= COMPILER_TYPE COMPILER_VERSION
_cc_hash= ${CC}${MACHINE}${PATH}
_cc_hash:= ${_cc_hash:hash}
+# Only import if none of the vars are set somehow else.
+_can_export= yes
+.for var in ${_exported_vars}
+.if defined(${var})
+_can_export= no
+.endif
+.endfor
+.if ${_can_export} == yes
.for var in ${_exported_vars}
.if defined(${var}.${_cc_hash})
${var}= ${${var}.${_cc_hash}}
.endif
.endfor
+.endif
.if ${MACHINE} == "common"
# common is a pseudo machine for architecture independent