diff -Naur a/configure.ac b/configure.ac
--- a/configure.ac	2013-04-20 23:31:50.000000000 +0200
+++ b/configure.ac	2014-01-03 20:26:32.064005192 +0100
@@ -106,8 +106,8 @@
 
 AC_PROG_LIBTOOL
 
-CXXTOOLS_CXXFLAGS='-I${includedir}'
-CXXTOOLS_LDFLAGS='-L${libdir} -lcxxtools'
+CXXTOOLS_CXXFLAGS=''
+CXXTOOLS_LDFLAGS='-lcxxtools'
 
 AC_SUBST(CXXTOOLS_CXXFLAGS)
 AC_SUBST(CXXTOOLS_LDFLAGS)
diff -Naur a/configure b/configure
--- a/configure	2013-04-21 21:13:11.000000000 +0200
+++ b/configure	2014-01-03 20:34:53.404660480 +0100
@@ -3119,7 +3119,7 @@
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
-am__api_version='1.16'
+am__api_version='1.18'
 
 
 
@@ -17316,8 +17316,8 @@
 
 
 
-CXXTOOLS_CXXFLAGS='-I${includedir}'
-CXXTOOLS_LDFLAGS='-L${libdir} -lcxxtools'
+CXXTOOLS_CXXFLAGS=''
+CXXTOOLS_LDFLAGS='-lcxxtools'