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Merge bitcoin#28777: doc: update docs for CHECK_ATOMIC macro
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ebc7063 doc: update docs for CHECK_ATOMIC macro (fanquake)

Pull request description:

  Clarify that supported versions of GCC are not affected, and that Clang
  prior to version 15 still requires the explicit `-latomic` linking, when
  compiling for 32-bit.

ACKs for top commit:
  hebasto:
    ACK ebc7063.

Tree-SHA512: 6044dc28547431cfde7e89b663b5f9a86a4cb801212a21c3dbb18a1c41a53640480c3e4e944050dc3ec4cded9bc4c1f8eae8dbb60596289fef49bb13a8b53b76
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@fanquake @PastaPastaPasta
fanquake authored and PastaPastaPasta committed Oct 24, 2024
1 parent d5e15df commit a9021db
Showing 1 changed file with 4 additions and 2 deletions.
6 changes: 4 additions & 2 deletions build-aux/m4/l_atomic.m4
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Expand Up @@ -4,8 +4,10 @@ dnl permitted in any medium without royalty provided the copyright notice
dnl and this notice are preserved. This file is offered as-is, without any
dnl warranty.

# Some versions of gcc/libstdc++ require linking with -latomic if
# using the C++ atomic library.
# Clang prior to version 15, when building for 32-bit,
# and linking against libstdc++, requires linking with
# -latomic if using the C++ atomic library.
# Can be tested with: clang++ test.cpp -m32
#
# Sourced from http://bugs.debian.org/797228

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