Bug#1072071: gcc-13: Please add libatomic for 32-bit SPARC for Ada

[John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>]

Source: gcc-13
Version: 13.2.0-25
Severity: normal
User: debian-sparc@lists.debian.org
Usertags: sparc
X-Debbugs-Cc: debian-sparc@lists.debian.org

Hello,

I just tried to build a cross-compiler for 32-bit SPARC (Debian arch sparc)
with Ada enabled. The build failed with a linker failure which indicates
that linking against libatomic is required:

checking float.h presence... yes
checking for float.h... yes
checking fp.h usability... /usr/sparc-linux-gnu/bin/ld: libgnat-13.so: undefined reference to `__atomic_compare_exchange_8'
collect2: error: ld returned 1 exit status

Such a patch already exists for armel [1], so it should be easy to extend
it for 32-bit SPARC. 64-bit SPARC (Debian arch sparc64) is not affected,
linking against libatomic is therefore not required.

Thanks,
Adrian

> [1] https://salsa.debian.org/toolchain-team/gcc/-/blob/gcc-13-debian/debian/patches/ada-armel-libatomic.diff

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