[Python-Dev] what environment variable should contain compiler warning suppression flags? (original) (raw)

Brett Cannon brett at python.org
Wed Jun 23 23:53:36 CEST 2010


I finally realized why clang has not been silencing its warnings about unused return values: I have -Wno-unused-value set in CFLAGS which comes before OPT (which defines -Wall) as set in PY_CFLAGS in Makefile.pre.in.

I could obviously set OPT in my environment, but that would override the default OPT settings Python uses. I could put it in EXTRA_CFLAGS, but the README says that's for stuff that tweak binary compatibility.

So basically what I am asking is what environment variable should I use? If CFLAGS is correct then does anyone have any issues if I change the order of things for PY_CFLAGS in the Makefile so that CFLAGS comes after OPT?



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