[SOLVED] glibc with custom-cflags

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EliasJonsson · Post by **EliasJonsson** » Mon Apr 03, 2023 4:22 am

Hello,
I'm using the profile

[12]  default/linux/amd64/17.1/desktop/systemd (stable)

is there a way of making glibc compile using custom-cflags?

Post by **fedeliallalinea** » Mon Apr 03, 2023 4:58 am

You can unmasking use flag with package.use, but at your own risk because if it's masked there is a reason .

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# Sam James <sam@gentoo.org> (2021-01-24)
# USE=custom-cflags is _particularly_ dangerous on sys-libs/glibc and
# can result in not just build-time failures for glibc itself, but
# runtime crashes. The effect of using USE=custom-cflags globally in make.conf
# isn't the same as it is for just glibc specifically.
sys-libs/glibc custom-cflags
sys-devel/gcc custom-cflags

EliasJonsson · Post by **EliasJonsson** » Mon Apr 03, 2023 5:47 am

Thanks, tried that but it still didn't work as the use flag was masked. Had to the unmask the use flag by:

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mkdir -p /etc/portage/profile/use.mask
## nano /etc/portage/profile/use.mask/glibc
-custom-cflags
##

and setting custom-cflags in make.conf:

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USE="custom-cflags"

EliasJonsson · Post by **EliasJonsson** » Mon Apr 03, 2023 5:48 am

fedeliallalinea wrote:You can unmasking use flag with package.use, but at your own risk because if it's masked there is a reason .

Thanks for the heads-up!

Post by **fedeliallalinea** » Mon Apr 03, 2023 5:53 am

EliasJonsson wrote:Thanks, tried that but it still didn't work as the use flag was masked. Had to the unmask the use flag by:
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mkdir -p /etc/portage/profile/use.mask
## nano /etc/portage/profile/use.mask/glibc
-custom-cflags
##

In this way you unmask use flag globally, maybe is better to use package.use.mask to specify only one package (sorry in my previous post I wrongly linked the file to unmask the use flags).