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Re: LIBGCC2_FLAGS not used by libgcc2 configure?
On 20/06/11 13:08, Ian Lance Taylor wrote:
Yes, it's libgcc/configure that's failing. So, you mean I should
MULTILIB_EXTRA_OPTS=-mas-mode in my t- makefile fragment?
Yes.
I will give that a try.
Alternatively, you implied that your backend always needs this option.
In that case you could make it the default or you could add it to
DRIVER_SELF_SPECS. Or did you just mean that you always need it for
libgcc2 but not for user code?
My backend as two 'compilation modes' (the generated code differs slightly).
I added a define into the command line by doing
make CFLAGS_FOR_BUILD="-DAS_MODE"
and then in my backend header:
#ifdef AS_MODE
#undef CC1_SPEC
#define CC1_SPEC "%{!mas-mode:-mas-mode}"
#endif
However, this is not working since gcc.c is not being compiled with the
CFLAGS_FOR_BUILD, meaning it's not being passed -DAS_MODE in the command
line and therefore no defining CC1_SPEC.
Which flag (like CFLAGS_FOR_BUILD) can I use that is passed in the
command line to compile the driver?
Cheers,
--
Paulo Matos