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-rw-r--r--build/build2.mk3
1 files changed, 2 insertions, 1 deletions
diff --git a/build/build2.mk b/build/build2.mk
index be103fc322..0b25ca79bd 100644
--- a/build/build2.mk
+++ b/build/build2.mk
@@ -50,5 +50,6 @@ aclocal.m4: configure.in acinclude.m4
configure: aclocal.m4 configure.in $(config_m4_files)
@echo rebuilding $@
- $(PHP_AUTOCONF) $(SUPPRESS_WARNINGS)
+ @rm -f $@
+ $(PHP_AUTOCONF) -f $(SUPPRESS_WARNINGS)