On Mon, Feb 13, 2012 at 10:43 PM, Mike Frysinger vapier@gentoo.org wrote:
On Monday 13 February 2012 18:02:02 Tom Rini wrote:
isnt possible with /dev/null.
isn't
--- a/config.mk +++ b/config.mk
-cc-option-sys = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
- > /dev/null 2>&1; then \
+cc-option-sys = $(shell mkdir -p $(dir $(CC_TEST_FILE)); \
- touch $(CC_TEST_FILE); \
- if $(CC) $(CFLAGS) $(1) -S -o $(CC_TEST_FILE) \
- -xc $(CC_TEST_FILE) > /dev/null 2>&1; then \
why do you need to touch the file first ? why do you source this test file instead of continuing to source /dev/null ? don't you run into problems if you use cc-option-sys more than once and a previous run wrote something to that file ? then cc-option-sys could fail on later runs ...
seems like you should drop the `touch` and keep the -xc /dev/null and only change the -o to $(CC_TEST_FILE) ...
I've also changed the variable to CC_TEST_OFILE and that works, thanks.