diff --git a/autogen.sh b/autogen.sh
index 53676bf..5b15a5c 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -2,7 +2,7 @@
 
 set -ex
 
-autoreconf --force --install --warnings=all
+autoreconf --force --install
 
 rm -f config.h.in~
 rm -rf autom4te.cache
diff --git a/configure.ac b/configure.ac
index 14943e9..3d3c8c8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,7 +7,7 @@ AC_CONFIG_SRCDIR([src/solvespace.cpp])
 AC_CONFIG_AUX_DIR([ac-aux])
 AC_CONFIG_MACRO_DIR([ac-aux])
 
-AM_INIT_AUTOMAKE([1.9.6 foreign tar-ustar])
+AM_INIT_AUTOMAKE([1.9.6 -Wall foreign tar-ustar])
 AM_MAINTAINER_MODE
 
 AC_PROG_CC