From 13e0b122f100a17fa54757e40dd8b334559522a6 Mon Sep 17 00:00:00 2001
From: Stephan Bergmann <sbergman@redhat.com>
Date: Wed, 10 Nov 2021 08:11:30 +0100
Subject: Upgrade external/boost to latest Boost 1.77.0

<https://dev-www.libreoffice.org/src/boost_1_77_0.tar.xz> has been generated (on
Fedora 35) with

> $ wget https://boostorg.jfrog.io/artifactory/main/release/1.77.0/source/boost_1_77_0.tar.bz2
> $ printf 'fc9f85fc030e233142908241af7a846e60630aa7388de9a5fafb1f3a26840854 boost_1_77_0.tar.bz2' | sha256sum -c # cf. <https://www.boost.org/users/history/version_1_77_0.html>
> boost_1_77_0.tar.bz2: OK
> $ external/boost/repack_tarball.sh boost_1_77_0.tar.bz2
> Unpacking boost_1_77_0.tar.bz2 ...
> Removing unnecessary files ...
> Creating boost_1_77_0.tar.xz ...
> Cleaning up ...
> 9b334d6c6d7af5a0687280788cd84444398b8e0b472cd88e52bbc3c3ef11d98e  boost_1_77_0.tar.xz
> Done.

Change-Id: I527cad7eb2f311d968da371f268644bdd31f6462
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/124947
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
---
 configure.ac | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index c5b3a1ea116f..a894323e2881 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7437,6 +7437,23 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 CXXFLAGS=$save_CXXFLAGS
 AC_LANG_POP([C++])
 
+AC_MSG_CHECKING([whether $CXX_BASE supports C++20 std::atomic_ref])
+HAVE_CXX20_ATOMIC_REF=
+AC_LANG_PUSH([C++])
+save_CXXFLAGS=$CXXFLAGS
+CXXFLAGS="$CXXFLAGS $CXXFLAGS_CXX11"
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+        #include <atomic>
+        int x;
+        std::atomic_ref<int> y(x);
+    ])], [
+        HAVE_CXX20_ATOMIC_REF=TRUE
+        AC_MSG_RESULT([yes])
+    ], [AC_MSG_RESULT([no])])
+CXXFLAGS=$save_CXXFLAGS
+AC_LANG_POP([C++])
+AC_SUBST([HAVE_CXX20_ATOMIC_REF])
+
 dnl Supported since GCC 9 and Clang 10 (which each also started to support -Wdeprecated-copy, but
 dnl which is included in -Wextra anyway):
 HAVE_WDEPRECATED_COPY_DTOR=
-- 
cgit