[SOLVED] -mstackrealign CFLAGS for glibc x86 32bit

[ololoshwin]

I need to build sys-libs/glibc with -mstackrealign compiler flag to run old 32bit game.

How to set CFLAGS for glibc and abi_x86_32 only?

[ololoshwin]

Portage is amazing.
Don't have to change ebuild.

Use package.env to affect only sys-libs/glibc.
/etc/portage/package.env:

Code: Select all

 sys-libs/glibc  glibc.conf 

Use CFLAGS_x86 environment variable to for 32bit target.
/etc/portage/env/glibc.conf:

Code: Select all

COMMON_FLAGS="-O2 -pipe -fpic -g"
CFLAGS="${COMMON_FLAGS}"
CXXFLAGS="${COMMON_FLAGS}"
FCFLAGS="${COMMON_FLAGS}"
FFLAGS="${COMMON_FLAGS}"
CFLAGS_x86="-m32 -mstackrealign ${COMMON_FLAGS}"

FEATURES="splitdebug"