build: autogen.sh: Use mkdir -p to suppress warning

It's minor but hey, warnings stand out.
This commit is contained in:
Colin Walters committed 2016-05-31 15:05:34 -04:00
1 parent f8d75f23be
commit 99239b6e51
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@@ -36,7 +36,7 @@ EOF
else
# gtkdocize needs the macro directory to exist before
# we call autoreconf
mkdir m4
mkdir -p m4
gtkdocize || exit $?
fi