Bug 737072 – dev-lang/gprolog-1.4.5 fails to compile

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Agostino Sarubbo 2020-08-14 06:50:52 UTC]

https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/

Issue: dev-lang/gprolog-1.4.5 fails to compile.
Discovered on: amd64 (internal ref: tinderbox)

NOTE:
This machine uses a clang/LLVM toolchain.
If you think that this issue is strictly related to clang/LLVM please block bug 408963. If you think that this issue is strictly related to the LLD linker, please block bug 731004.

[Comment 1 Agostino Sarubbo 2020-08-14 06:50:55 UTC]

Created attachment 654564 [details]
build.log

build log and emerge --info

[Comment 2 Alessandro Barbieri 2021-03-24 19:07:34 UTC]

The issue here isn't clang but llvm-ar and company

[Comment 3 Alessandro Barbieri 2021-03-24 19:08:41 UTC]

Created attachment 693351 [details]
llvm-as fail

[Comment 4 Keri Harris 2021-06-26 14:15:48 UTC]

Using llvm-as looks suspicious. gprolog converts (Prolog) VM instructions into AT&T assembler. AFAIK llvm-as requires LLVM assembler as an input, whereas clang itself should be used to compile AT&T assembler.

A workaround could be to patch the configure script to check for "clang" rather than "as" for the assembler if $CC == clang.

[Comment 5 Keri Harris 2021-06-27 10:35:11 UTC]

This is now fixed in git.