[3.12] gh-90005: Don't link with libbsd if not needed (#105236) (#105360

) The regression was introduced with commit 5b946ca. Restore pre gh-29696 behaviour.
python · Jun 6, 2023 · 6f3a4fd · 6f3a4fd
1 parent 3aa3be4
commit 6f3a4fd
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diff --git a/Misc/NEWS.d/next/Build/2023-06-06-09-08-10.gh-issue-90005.8mmeJQ.rst b/Misc/NEWS.d/next/Build/2023-06-06-09-08-10.gh-issue-90005.8mmeJQ.rst
@@ -0,0 +1 @@
+Fix a regression in :file:`configure` where we could end up unintentionally linking with ``libbsd``.
diff --git a/configure b/configure
diff --git a/configure.ac b/configure.ac
@@ -4936,9 +4936,8 @@ AC_CACHE_CHECK([for flock declaration], [ac_cv_flock_decl],
 ])
 dnl Linking with libbsd may be necessary on AIX for flock function.
 AS_VAR_IF([ac_cv_flock_decl], [yes],
-  AC_CHECK_FUNCS([flock])
-  AC_CHECK_LIB([bsd], [flock], [FCNTL_LIBS="-lbsd"])
-)
+  [AC_CHECK_FUNCS([flock], [],
+    [AC_CHECK_LIB([bsd], [flock], [FCNTL_LIBS="-lbsd"])])])
 
 PY_CHECK_FUNC([getpagesize], [#include <unistd.h>])