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Gcc 6+ use C++14 as default, so there is no need to enforce C++11

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Also, use gnu++11 unconditionnally with gcc as we used to do before 67385e69.
This commit is contained in:
Jean-Marc Lasgouttes 2016-06-30 11:15:14 +02:00
parent ac4cca6ed4
commit 67ac031a33
1 changed files with 5 additions and 5 deletions
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10
config/lyxinclude.m4
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@ -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).