diff --git a/src/Makefile.am b/src/Makefile.am
index 1653321..3ccc865 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -8,10 +8,10 @@
 # to the appropriate directories specified by --prefix 
 # during configure
 
-AUTOMAKE_OPTIONS  = subdir-objects no-dependencies
+AUTOMAKE_OPTIONS  = subdir-objects no-dependencies nostdinc
 
 # Compilation Flags
-CFLAGS           += $(DEBUG) $(OPTIM) $(X_CFLAGS) -I$(top_srcdir)/inc
+AM_CFLAGS         = $(DEBUG) $(OPTIM) $(X_CFLAGS) -I$(top_srcdir)/inc
 
 # Compiled Programs 
 bin_PROGRAMS      = sac
@@ -46,7 +46,7 @@ sac_LDADD        += $(X_PRE_LIBS) $(X_EXTRA_LIBS) $(X_LIBS) -lX11
 # Readline/Editline Dependencies (Default = ON)
 if EDITLINE
 sac_LDADD        += ../libedit/lib/libedit.a
-CFLAGS           += -I../libedit/include
+AM_CFLAGS        += -I../libedit/include
 endif
 
 EXTRA_DIST       = describedirs gd3.x11/sac.bitmap \
diff --git a/utils/Makefile.am b/utils/Makefile.am
index 6657d58..9268d51 100644
--- a/utils/Makefile.am
+++ b/utils/Makefile.am
@@ -1,8 +1,8 @@
 
 # Do not create dependencies while compiling
-AUTOMAKE_OPTIONS = no-dependencies
+AUTOMAKE_OPTIONS = no-dependencies nostdinc
 
-CFLAGS           += $(DEBUG) $(OPTIM)
+AM_CFLAGS        = $(DEBUG) $(OPTIM)
 
 # Compiled programs to install
 bin_PROGRAMS = sgftops saclst sacswap bbfswap unvis