Change in coreboot[master]: xcompile: Hard-code gcc-12

[Martin L Roth (Code Review)]

Attention is currently required from: Paul Menzel.
Martin L Roth has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62831 )

Change subject: xcompile: Hard-code gcc-12
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Patch Set 1:

(3 comments)

Patchset:

PS1: 
I'm not sure if this was supposed to be a private patch, but if it's for submission, we need to qualify the use of gcc-12.

File util/xcompile/xcompile:

https://review.coreboot.org/c/coreboot/+/62831/comment/a6be97bd_adc2e2f5 
PS1, Line 64: gcc-12
I'm not sure that this is what we want here.  What about other systems than debian?

How about adding a check for gcc-12 instead?

if program_exists "${XGCCPATH}/gcc"; then
    HOSTCC="${XGCCPATH}/gcc"
elif program_exists gcc-12; then
    HOSTCC=gcc-12
elif program_exists gcc; then
    HOSTCC=gcc
elif program_exists cc; then
    HOSTCC=cc
else
    die "no host compiler found"
fi

https://review.coreboot.org/c/coreboot/+/62831/comment/6300c114_17a4c3cf 
PS1, Line 302: 	NM_${TARCH}:=${GCCPREFIX}gcc-nm-12
Here, let's check for $HOSTCC == gcc-12 before setting this, both here and below.

ifeq (${HOSTCC},gcc-12)
    NM_${TARCH}:=${GCCPREFIX}gcc-nm-12
    AR_${TARCH}:=${GCCPREFIX}gcc-ar-12
 else
    NM_${TARCH}:=${GCCPREFIX}gcc-nm
    AR_${TARCH}:=${GCCPREFIX}gcc-ar
 endif