[gnunet] branch master updated: build: hopefully finally correctly fix libatomic detection for older toolchains

[gnunet]

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martin-schanzenbach pushed a commit to branch master
in repository gnunet.

The following commit(s) were added to refs/heads/master by this push:
     new 47637f6dc build: hopefully finally correctly fix libatomic detection 
for older toolchains
47637f6dc is described below

commit 47637f6dc3089191899600974c3926c401fdaac4
Author: Martin Schanzenbach <schanzen@gnunet.org>
AuthorDate: Sun Jan 12 12:56:40 2025 +0100

    build: hopefully finally correctly fix libatomic detection for older 
toolchains
---
 configure.ac             | 7 ++++++-
 src/lib/util/Makefile.am | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index a9e8c00ca..220608685 100644
--- a/configure.ac
+++ b/configure.ac
@@ -757,7 +757,12 @@ AS_IF([test "x$nss" = "xfalse"],
          [[#include <nss.h>]])])
 
 # libatomic
-AC_SEARCH_LIBS([__atomic_load_8], [atomic])
+AC_SEARCH_LIBS([__atomic_load_8], [atomic], [
+  AS_IF([test x$ac_cv_search___atomic_load_8 != "xnone required"],
+    [ATOMICLIB=$ac_cv_search___atomic_load_8], [ATOMICLIB=])
+  AC_SUBST([ATOMICLIB])
+  ], [AC_MSG_ERROR([No library found that provides __atomic_load_8()])
+])
 
 # test for kvm and kstat (for CPU stats under BSD/Solaris)
 AC_CHECK_LIB([kvm], [kvm_open])
diff --git a/src/lib/util/Makefile.am b/src/lib/util/Makefile.am
index 54f8a4e2e..88add66d3 100644
--- a/src/lib/util/Makefile.am
+++ b/src/lib/util/Makefile.am
@@ -137,6 +137,7 @@ libgnunetutil_la_LIBADD = \
   -lunistring \
   -lsodium \
   -lgmp \
+  $(ATOMICLIB) \
   $(XLIB) \
   $(PTHREAD)
 

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