Ralf Wildenhues wrote:
* Basile STARYNKEVITCH wrote on Tue, Mar 18, 2008 at 09:06:33PM CET:
in gcc/Makefile.in there are many different *CFLAGS, notablye
ALL_CFLAGS = $(X_CFLAGS) $(T_CFLAGS) \
$(CFLAGS) $(INTERNAL_CFLAGS) $(COVERAGE_FLAGS) $(WARN_CFLAGS)
$(XCFLAGS) @DEFS@
Do anyone have a precise idea of what all these *CFLAGS are exactly for?
AFAICS each warning flag is described where it is defined. So just
search for ^INTERNAL_CFLAGS, for example.
It is indeed the easiest. But for X_CFLAGS & T_CFLAGS I only found the
comment
# These exists to be overridden by the x-* and t-* files, respectively.
and for XCFLAGS
# XCFLAGS is used for most compilations but not when using the GCC just
built.
Actually, I am asking because for my MELT branch, I need to run
(sometimes) a C compiler from within a (resource hungry) C pass. So I
guessed
## the C flags (without any gcc -I...stuff) to be included in
## compilation of MELT generated C code thru the melt-cc-script
## do not put $(INTERNAL_CFLAGS) $(COVERAGE_FLAGS) $(WARN_CFLAGS) ##there!
MELT_CFLAGS= $(X_CFLAGS) $(T_CFLAGS) $(CFLAGS) $(XCFLAGS)
But I'm not sure of the T_CFLAGS (it probably is related to target
specific stuff only).
A big thanks to Ralf for his reply.
Regards.
--
Basile STARYNKEVITCH http://starynkevitch.net/Basile/
email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359
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