Re: [PATCH 5/6] configure: Allow user override LD, AR, OBJCOPY, and GPROF

[Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>]

On 05/12/22 12:56, Carlos O'Donell wrote:
> On 12/2/22 14:00, Adhemerval Zanella via Libc-alpha wrote:
>> The only way to override LD, AR, OBJCOPY, and GPROF is through
>> --with-binutils (setting the environments variables on configure is
>> overridden by LIBC_PROG_BINUTILS).
> 
> If this is true then doesn't build-many-glibcs.py need --with-binutils?
> 
> We set LD, AR, OBJCOPY in bmg (not GPROF though).
> 
> I'd think we'd either set them or let the defaults be used (remove their setting).

build-many-glibcs.py (bmg) glibcs option generates a working config, but not
fully concise:

$ grep -e "AR =" -e "AS =" -e "LD =" -e "NM =" -e "OBJCOPY =" -e "OBJDUMP =" -e "RANLIB =" -e "READELF =" -e "STRIP =" config.make
AR = [...]/x86_64-linux-gnu/bin/../lib/gcc/x86_64-glibc-linux-gnu/12.1.1/../../../../x86_64-glibc-linux-gnu/bin/ar
NM = x86_64-glibc-linux-gnu-nm
AS = $(CC) -c
OBJDUMP = [...]/x86_64-linux-gnu/bin/../lib/gcc/x86_64-glibc-linux-gnu/12.1.1/../../../../x86_64-glibc-linux-gnu/bin/objdump
OBJCOPY = [...]/x86_64-linux-gnu/bin/../lib/gcc/x86_64-glibc-linux-gnu/12.1.1/../../../../x86_64-glibc-linux-gnu/bin/objcopy
READELF = x86_64-glibc-linux-gnu-readelf

So some tools are set from "$CC --print-prog-name", while others are set from
the environment variable.  It works for bmg because it sets the PATH to the
bmg own toolchain.

So I agree that with this change there is no need to setup the bmg env. vars
anymore.  I have sent an updated version.