make: Added AC_CONFIG_MACRO_DIR([m4]).
diff --git a/configure b/configure
index 93c8e72..c5373db 100755
--- a/configure
+++ b/configure
@@ -3230,6 +3230,7 @@
 fi
 
 
+
 # Create config.h without prefixes.
 ac_config_headers="$ac_config_headers config.h"
 
@@ -8509,6 +8510,10 @@
 $RM -r conftest*
 
 
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
 if test -n "$compiler"; then
 
 lt_prog_compiler_no_builtin_flag=
@@ -12048,6 +12053,8 @@
 # Only expand once:
 
 
+
+
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'