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-rw-r--r--Makeconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/Makeconfig b/Makeconfig
index 32f67cf89c..a74d4500bc 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -683,7 +683,7 @@ $(common-objpfx)soversions.i: $(..)shlib-versions $(..)Makeconfig \
$(common-objpfx)config.make
sed -e 's/#.*$$//;s/^[ ]*%/#/' \
$(filter-out $(..)Makeconfig $(common-objpfx)config.make,$^) \
- | $(CC) -include $(common-objpfx)config.h -E -x c - \
+ | $(CC) -E -undef -include $(common-objpfx)config.h -x c - \
| while read conf version setname; do \
test -n "$$version" && \
test `expr '$(config-machine)-$(config-vendor)-$(config-os)' \