diff --git a/configure.ac b/configure.ac
index a3f2fb9c4..e6f53f26c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,6 +16,8 @@ All Rights Reserved.
 This file is part of the open source package Clp which is distributed
 under the Eclipse Public License.])
 
+AC_CONFIG_MACRO_DIR([m4])
+
 # List one file in the package so that the configure script can test
 # whether the package is actually there.
 AC_CONFIG_SRCDIR(src/ClpSimplex.cpp)
@@ -63,7 +63,7 @@ AC_COIN_CHK_PKG(Osi,[OsiClpLib OsiClpUnitTest])
 AC_COIN_CHK_PKG(OsiTests,[OsiClpUnitTest],[osi-unittests])
 AC_COIN_CHK_PKG(Sample,,[coindatasample],[],dataonly)
 AC_COIN_CHK_PKG(Netlib,,[coindatanetlib],[],dataonly)
-AC_COIN_CHK_PKG(Glpk,[ClpLib],[coinglpk])
+AC_COIN_CHK_PKG(Glpk,[ClpLib],[glpk])
 
 #############################################################################
 #                                    Aboca                                  #
@@ -96,7 +96,7 @@ AC_COIN_CHK_LIBHDR(CHOLMOD,[ClpLib],[-lcholmod],[-I/usr/include/suitesparse],[],
 # bothered to build it, we should use it. If it's not present, try for a
 # system installation. If we find it, define CLP_HAS_MUMPS for export to code
 # using clp.
-AC_COIN_CHK_PKG(MUMPS,[ClpLib],[coinmumps])
+AC_COIN_CHK_PKG(MUMPS,[ClpLib],[mumps])
 if test $coin_has_mumps = no ; then
   AC_COIN_CHK_LIBHDR(MUMPS,[ClpLib],[-ldmumps],[-I/usr/include/MUMPS],[],
     [dmumps_c((DMUMPS_STRUC_C*)0)],