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authorfanquake <fanquake@gmail.com>2023-11-02 16:53:58 +0000
committerfanquake <fanquake@gmail.com>2023-11-02 16:53:58 +0000
commitebc7063c80135dd6f3e7b9418e8f4bf217bd8db7 (patch)
tree26cc7ac33af197203cad189fc0064b0cf2e8e9a3 /build-aux
parent023418a140b05b788b45fcb66bdd4832c08db751 (diff)
downloadbitcoin-ebc7063c80135dd6f3e7b9418e8f4bf217bd8db7.tar.xz
doc: update docs for CHECK_ATOMIC macro
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.
Diffstat (limited to 'build-aux')
-rw-r--r--build-aux/m4/l_atomic.m46
1 files changed, 4 insertions, 2 deletions
diff --git a/build-aux/m4/l_atomic.m4 b/build-aux/m4/l_atomic.m4
index 602b57fe43..5e65257d77 100644
--- a/build-aux/m4/l_atomic.m4
+++ b/build-aux/m4/l_atomic.m4
@@ -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