autogen.sh should never use any previous config.cache

diff --git a/autogen.sh b/autogen.sh
index dd86f9e6cd4d08d145b95f19fa358c0677850f0d..00045b5e494265bbbf02fa1be1b360457506b6a5 100755 (executable)
--- a/autogen.sh
+++ b/autogen.sh
@@ -16,4 +16,6 @@ patch -N -p0 <ltmain.sh.patch
 rm -f COPYING
 cp cpl1.0.txt COPYING
 
+# don't use any old cache, but create a new one
+rm -f config.cache
 ./configure -C "$@"