File pptpd-cflags.patch of Package pptpd
--- pptpd-1.3.4/Makefile.am
+++ pptpd-1.3.4/Makefile.am
@@ -11,7 +11,8 @@
## warning with -Wmissing-prototypes).
## -Wmissing-prototypes removed (eg, Linux 2.2.6 headers
## aren't up to it).
-CFLAGS = -O2 -fno-builtin -Wall -DSBINDIR='"$(sbindir)"'
+OPTFLAGS=-O2
+CFLAGS = $(OPTFLAGS) -fno-builtin -Wall -DSBINDIR='"$(sbindir)"'
#CFLAGS = -O2 -fno-builtin -Wall -ansi -DSBINDIR='"$(sbindir)"'
#CFLAGS = -O2 -fno-builtin -Wall -ansi -pedantic -Wmissing-prototypes -Werror -DSBINDIR='"$(sbindir)"'