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-rw-r--r--dos/Makefile6
1 files changed, 4 insertions, 2 deletions
diff --git a/dos/Makefile b/dos/Makefile
index 5fd52d1b..53406b19 100644
--- a/dos/Makefile
+++ b/dos/Makefile
@@ -1,5 +1,7 @@
-gcc_ok = $(shell if gcc $(1) -c -x c /dev/null -o /dev/null 2>/dev/null; \
- then echo $(1); else echo $(2); fi)
+TMPFILE = $(shell mktemp /tmp/gcc_ok.XXXXXX)
+
+gcc_ok = $(shell tmpf=$(TMPFILE); if gcc $(1) -c -x c /dev/null -o $$tmpf 2>/dev/null; \
+ then echo $(1); else echo $(2); fi; rm -f $$tmpf)
M32 := $(call gcc_ok,-m32,) $(call gcc_ok,-ffreestanding,) $(call gcc_ok,-fno-stack-protector,)