| From bbf710e77e4a0438a2d995fd69b472e5ff054c69 Mon Sep 17 00:00:00 2001 |
| From: Jan Palus <jpalus@fastmail.com> |
| Date: Sun, 3 Dec 2023 12:14:05 +0100 |
| Subject: [PATCH] Check and link libatomic if needed |
| |
| Some architectures without native support for 64-bit atomics need |
| linking with libatomic. |
| |
| Signed-off-by: Julien Olivain <ju.o@free.fr> |
| Upstream: https://github.com/esnet/iperf/commit/1511e9f85b548891ea53d4e378903344df1fd31e |
| --- |
| configure.ac | 14 +++++++++++++- |
| 1 file changed, 13 insertions(+), 1 deletion(-) |
| |
| diff --git a/configure.ac b/configure.ac |
| index 2594b39..ad7eaf1 100644 |
| --- a/configure.ac |
| +++ b/configure.ac |
| @@ -92,7 +92,19 @@ CXX="$PTHREAD_CXX" |
| ]) |
| |
| # Atomics |
| -AC_CHECK_HEADERS([stdatomic.h]) |
| +AC_CHECK_HEADERS([stdatomic.h], |
| + [AC_MSG_CHECKING([whether libatomic is required]) |
| + AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdatomic.h>]], [[atomic_uint_fast64_t i; i++;]])], |
| + [AC_MSG_RESULT([no])], |
| + [save_LIBS="$LIBS" |
| + LIBS="$LIBS -latomic" |
| + AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdatomic.h>]], [[atomic_uint_fast64_t i; i++;]])], |
| + [AC_MSG_RESULT([yes])], |
| + [AC_MSG_ERROR([failed to find working configuration with atomics])] |
| + )] |
| + )], |
| + [] |
| +) |
| |
| # Check for poll.h (it's in POSIX so everyone should have it?) |
| AC_CHECK_HEADERS([poll.h]) |
| -- |
| 2.44.0 |
| |
