GNU bug report logs - #78376
Llvm & Musl Libc - "function-like macro '__GNUC_PREREQ' is not defined"

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#78376: closed (Llvm & Musl Libc - "function-like macro
 '__GNUC_PREREQ' is not defined")
Date: Sun, 11 May 2025 17:23:02 +0000

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Your message dated Sun, 11 May 2025 10:22:16 -0700
with message-id <3b95eaa0-5195-4246-8ead-a65e599be0ad <at> cs.ucla.edu>
and subject line Re: bug#78376: Llvm & Musl Libc - "function-like macro '__GNUC_PREREQ' is not defined"
has caused the debbugs.gnu.org bug report #78376,
regarding Llvm & Musl Libc - "function-like macro '__GNUC_PREREQ' is not defined"
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: NR <nroycea+gnu <at> gmail.com>
To: bug-coreutils <at> gnu.org
Subject: Llvm & Musl Libc - "function-like macro '__GNUC_PREREQ' is not
 defined"
Date: Sun, 11 May 2025 10:18:17 -0500

I was aiming to build a llvm/musl-based system, and while something
like `bash` will build fine, I encountered this error attempting to
build coreutils:
```
In file included from lib/fts.c:53:
lib/fts_.h:70:32: error: function-like macro '__GNUC_PREREQ' is not defined
   70 | #   if defined __cplusplus && (__GNUC_PREREQ (2,8) ||
__clang_major__ >= 4)
```
Looking in the llvm source, the closest grep result I could find was:
```
llvm_project/llvm/include/llvm/Support/Compiler.h:/// Extend the
default __GNUC_PREREQ even if glibc's features.h isn't
```

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Collin Funk <collin.funk1 <at> gmail.com>
Cc: 78376-done <at> debbugs.gnu.org, NR <nroycea+gnu <at> gmail.com>
Subject: Re: bug#78376: Llvm & Musl Libc - "function-like macro
 '__GNUC_PREREQ' is not defined"
Date: Sun, 11 May 2025 10:22:16 -0700

Thanks, I pushed that patch into coreutils master on Savannah. Closing 
the bug report.

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