patch 8.1.2316: FORTIFY_SOURCE can also be present in CPPFLAGS Commit: https://github.com/vim/vim/commit/91b992c38769b343b4a66a5f8e589aa9897fdc9f Author: Bram Moolenaar <Bram@vim.org> Date: Sun Nov 17 19:07:42 2019 +0100 patch 8.1.2316: FORTIFY_SOURCE can also be present in CPPFLAGS Problem: FORTIFY_SOURCE can also be present in CPPFLAGS. Solution: Remove it in configure. (Benedikt Morbach, closes https://github.com/vim/vim/issues/2786)

# A very (if not the most) simplistic Makefile for MS-Windows and OS/2

CC=gcc
CFLAGS=-O2 -fno-strength-reduce

ifneq (sh.exe, $(SHELL))
DEL = rm
else
DEL = del
endif

tee.exe: tee.o
	$(CC) $(CFLAGS) -s -o $@ $<

tee.o: tee.c
	$(CC) $(CFLAGS) -c $<

clean:
	- $(DEL) tee.o
	- $(DEL) tee.exe