build: avoid error message during autogen.sh

Do not complain if the directory already exists.

mkdir: cannot create directory "autotools": File exists

1 files changed, 1 insertions, 1 deletions

diff --git a/autogen.sh b/autogen.sh
index d9cbcfca..faed544d 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -6,7 +6,7 @@ else
     have_INSTALL=false
 fi
 
-mkdir autotools
+mkdir -p autotools
 
 aclocal
 autoheader