diff --git a/Makefile.am b/Makefile.am
index 93699dd..d3466f5 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -258,8 +258,7 @@ CLEANFILES += $(pytrexio_c) \
               python/src/*.c \
               python/src/*.h
 
-.PHONY: cppcheck python-test python-install python-sdist check-numpy
+.PHONY: cppcheck python-test python-install python-sdist check-numpy FORCE
 
 endif
 
-.PHONY: FORCE
diff --git a/autogen.sh b/autogen.sh
index a8d5842..c7058b5 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
 
-autoreconf -i
+autoreconf -i -Wall
 
 
diff --git a/configure.ac b/configure.ac
index 9bbc467..d61087b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.69])
-AC_INIT([trexio], [2.0.0], [https://github.com/TREX-CoE/trexio/issues])
+AC_INIT([trexio],[2.0.0],[https://github.com/TREX-CoE/trexio/issues])
 AM_INIT_AUTOMAKE([subdir-objects color-tests parallel-tests silent-rules 1.11])
 AM_MAINTAINER_MODE()
 
@@ -27,6 +27,7 @@ AC_DEFINE_UNQUOTED(VERSION_MAJOR, [$VERSION_MAJOR], [major version])
 AC_DEFINE_UNQUOTED(VERSION_MINOR, [$VERSION_MINOR], [minor version])
 AC_DEFINE_UNQUOTED(VERSION_PATCH, [$VERSION_PATCH], [patch version])
 
+
 ## Save system information, e.g. user name
 
 UNAME=`echo ${USER}`
@@ -59,7 +60,8 @@ PKG_CFLAGS=""
 PKG_LIBS=""
 
 AC_PROG_INSTALL
-AC_PROG_LIBTOOL
+LT_INIT
+AM_PROG_AR
 AC_PROG_LN_S
 AC_PROG_GREP