--- cgi-fcgi/Makefile.am
+++ cgi-fcgi/Makefile.am
@@ -2,7 +2,7 @@
 bin_PROGRAMS     = cgi-fcgi
 
 INCLUDEDIR  = ../include
-CPPFLAGS    = @CPPFLAGS@ -I$(top_srcdir)/include
+AM_CPPFLAGS    = @CPPFLAGS@ -I$(top_srcdir)/include
 
 INCLUDE_FILES   = $(INCLUDEDIR)/fastcgi.h  \
 		  $(INCLUDEDIR)/fcgiapp.h  \
--- examples/Makefile.am
+++ examples/Makefile.am
@@ -11,7 +11,7 @@
 EXTRA_PROGRAMS = threaded echo-cpp
 
 INCLUDEDIR  = ../include
-CPPFLAGS    = @CPPFLAGS@ -I$(top_srcdir)/include
+AM_CPPFLAGS    = @CPPFLAGS@ -I$(top_srcdir)/include
 
 INCLUDE_FILES   = $(INCLUDEDIR)/fastcgi.h    \
                   $(INCLUDEDIR)/fcgiapp.h    \
--- libfcgi/Makefile.am
+++ libfcgi/Makefile.am
@@ -1,7 +1,7 @@
 # $Id: Makefile.am,v 1.9 2001/12/22 03:16:20 robs Exp $
 
 INCLUDEDIR  = ../include
-CPPFLAGS    = @CPPFLAGS@ -I$(top_srcdir)/include
+AM_CPPFLAGS    = @CPPFLAGS@ -I$(top_srcdir)/include
 
 INCLUDE_FILES = $(INCLUDEDIR)/fastcgi.h     \
                 $(INCLUDEDIR)/fcgiapp.h     \