[Bug bootstrap/30810] top-level BOOT_CFLAGS not being used for bootstrapping

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2007-02-16 22:29 -------
libcpp should be use BOOT_CFLAGS in 4.1.0 and before.
In 4.2.0 and above the toplevel bootstrap allows libcpp to be compiled three
times.

Second there is TARGET_CFLAGS also which is used to compile target libraries.

>Here the compiler gets "-ffunction-sections -fdata-sections -O2" prepended.
> AFAIK the first two flags currently only make sense on Suns where the linker
> can actually use that information (according to the manpage).
GNU's binutils (ld) does support the GCing of sections.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30810