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-rw-r--r--configure.ac6
1 files changed, 4 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac
index abfd038..5731092 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2922,8 +2922,10 @@ AC_ARG_VAR([target_configargs],
# For the build-side libraries, we just need to pretend we're native,
# and not use the same cache file. Multilibs are neither needed nor
-# desired.
-build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}"
+# desired. We can't even use the same cache file for all build-side
+# libraries, as they're compiled differently; some with C, some with
+# C++ or with different feature-enabling options.
+build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
# For host modules, accept cache file option, or specification as blank.
case "${cache_file}" in