[checkmk-commits] Added hack to easily switch back and forth between recent versions of g++ and clang++.

Module: check_mk Branch: master Commit: 768c76a5498b5a8fb70bce213167028b633d375e URL: http://git.mathias-kettner.de/git/?p=check_mk.git;a=commit;h=768c76a5498b5a… Author: Sven Panne <sp(a)mathias-kettner.de> Date: Wed May 10 11:48:17 2017 +0200 Added hack to easily switch back and forth between recent versions of g++ and clang++. Change-Id: I94adddd48ec416239d85e0b21e113fdcfb9eb665 --- Makefile | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Makefile b/Makefile index cc05538..24fd917 100644 --- a/Makefile +++ b/Makefile @@ -46,6 +46,14 @@ TAROPTS := --owner=root --group=root --exclude=.svn --exclude=*~ \ --exclude=.gitignore --exclude=*.swp --exclude=.f12 CXX_FLAGS := -g -O3 -Wall -Wextra +# HACK: Starting with GCC 6.1, g++ defaults to C++14, but even clang++-4.0 still +# defaults to C++11. So when configure finds such a g++ first, the resulting +# compilation database does not contain a -std=c++14 flag, because it's simply +# not needed. But when we want to use our clang-based tools, it *is* needed. :-/ +# To work around that issue, we hackily add that flag below. This is ugly and +# should be removed when the compiler defaults are in sync again. +CXX_FLAGS += -std=c++14 + CLANG_VERSION := 4.0 CLANG_FORMAT := clang-format-$(CLANG_VERSION) CLANG_TIDY := clang-tidy-$(CLANG_VERSION)