commit 02beaa0a7bc4a094fe54a5453a2e585a077a1eb1
Author: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date: Sat Oct 5 15:17:37 2024 +0200
Remove configure test for std::call_once
It was not needed anymore since 193cda6e.
---
config/lyxinclude.m4 | 27 ---------------------------
1 file changed, 27 deletions(-)
diff --git a/config/lyxinclude.m4 b/config/lyxinclude.m4
index 2138a8482e..2d6ceccb83 100644
--- a/config/lyxinclude.m4
+++ b/config/lyxinclude.m4
@@ -210,32 +210,6 @@ AC_DEFUN([LYX_CXX_CXX11_FLAGS],
])
-dnl Usage: LYX_CXX_USE_CALL_ONCE
-dnl check whether we can use std::call_once and set the
-dnl LYX_USE_STD_CALL_ONCE macro and conditional accordingly.
-AC_DEFUN([LYX_CXX_USE_CALL_ONCE],
-[AC_MSG_CHECKING([for std::call_once availability])
- save_CPPFLAGS=$CPPFLAGS
- CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
- save_CXXFLAGS=$CXXFLAGS
- CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
- AC_LINK_IFELSE([AC_LANG_PROGRAM([[
- #include <mutex>
- static std::once_flag flag;
- ]], [[
- std::call_once(flag, [](){ return; });
- ]])],[lyx_std_call_once=yes],[lyx_std_call_once=no])
- CXXFLAGS=$save_CXXFLAGS
- CPPFLAGS=$save_CPPFLAGS
- AC_MSG_RESULT([$lyx_std_call_once])
-
- if test $lyx_std_call_once = yes ; then
- AC_DEFINE([LYX_USE_STD_CALL_ONCE], 1, [define to 1 if std::call_once is
supported by the compiler])
- fi
- AM_CONDITIONAL([LYX_USE_STD_CALL_ONCE], test $lyx_std_call_once = yes)
-])
-
-
dnl Usage: LYX_LIB_STDCXX: set lyx_cv_lib_stdcxx to yes if the STL library is
libstdc++.
AC_DEFUN([LYX_LIB_STDCXX],
[AC_CACHE_CHECK([whether STL is libstdc++],
@@ -262,7 +236,6 @@ AC_LANG_PUSH(C++)
LYX_PROG_CLANG
LYX_CXX_CXX11_FLAGS($enable_cxx_mode)
LYX_LIB_STDCXX
-LYX_CXX_USE_CALL_ONCE
AC_LANG_POP(C++)
### We might want to get or shut warnings.
--
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