Le 26/06/2016 à 16:58, Guillaume Munch a écrit :
Le 26/06/2016 15:04, Jürgen Spitzmüller a écrit :
Am Sonntag, den 26.06.2016, 14:30 +0100 schrieb Guillaume Munch:
Hi Jürgen,
I can have a look. Please send your config.log.
Thank you. Log is attached.
Thank you. I think the problem is there:
configure:8141: checking whether make_unique is defined by header memory
configure:8154: g++ -c conftest.cpp >&5
configure:8154: $? = 0
configure:8160: result: yes
The macro LYX_CHECK_DEF does not pass the option -std=X to g++ for the
test. Probably it has only been working by chance up to now. Can any
configure expert have a look?
What about this additional patch that does not force C++11 for gcc 6+,
so that C++14 is available in this case?
>From 24a56e245a5286607107b5d44d0b5eca8e91ee35 Mon Sep 17 00:00:00 2001
From: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date: Thu, 30 Jun 2016 11:15:14 +0200
Subject: [PATCH] Gcc 6+ use C++14 as default, so there is no need to enforce
C++11
---
config/lyxinclude.m4 | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/config/lyxinclude.m4 b/config/lyxinclude.m4
index 629247b..59a3753 100644
--- a/config/lyxinclude.m4
+++ b/config/lyxinclude.m4
@@ -373,7 +373,9 @@ if test x$GXX = xyes; then
4.6*)
dnl Note that this will define __GXX_EXPERIMENTAL_CXX0X__.
dnl The source code relies on that.
- cxx11_flags="-std=c++0x";;
+ cxx11_flags="-std=gnu++0x";;
+ 4.7*|4.8*|4.9*|5.*)
+ cxx11_flags="-std=gnu++11";;
clang-3.0*|clang-3.1*|clang-3.2*|clang-3.3*)
dnl presumably all clang versions support c++11.
dnl boost contains pragmas that are annoying on older clang versions
@@ -383,10 +385,8 @@ if test x$GXX = xyes; then
dnl which is very annoying with Qt4.x right now.
cxx11_flags="-std=c++11"
AM_CXXFLAGS="$AM_CXXFLAGS -Wno-deprecated-register";;
- *)
- AS_CASE([$host], [*cygwin*],
- [cxx11_flags="-std=gnu++11"],
- [cxx11_flags="-std=c++11"]);;
+ *) # gcc 6 and newer use C++14 as default
+ ;;
esac
# cxx11_flags is useful when running preprocessor alone
# (see detection of regex).
--
1.7.9.5
