Dra*_*-On 5 clang travis-ci c++17
我有一个小的C ++ 17项目,我想为其设置Travis CI。由于它是C ++ 17,因此需要现代编译器。我选择了gcc-7和clang-6。虽然gcc构建可以很好地编译和链接,但我一生都无法弄清楚如何正确设置clang。看起来它总是使用非常过时的预安装gcc的标准库实现,而不是它自己的。
travis日志显示以下行cmake --build . -- VERBOSE=1
:
/usr/bin/clang-6.0 -I / home / travis / build / myuser / perlin / include -g -std = gnu ++ 1z -o CMakeFiles / perlin.dir / main.cpp.o -c / home / travis /build/myuser/perlin/main.cpp
在/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/algorithm包含的文件中:62:在/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/bits/stl_algo.h:66:位于/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/random:38:在/ usr / bin包含的文件中/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/cmath:44:/ home / travis / build / myuser / perlin / include /math.h:48:28:错误:名称空间“ std”中没有名为“ is_arithmetic_v”的模板;您是说“ is_arithmetic”吗?
同样,它在gcc上构建良好。我还仔细检查了是否包括所有必需的标头。
我的.travis.yml看起来像这样:
language: cpp
dist: trusty
matrix:
include:
- os: linux
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-7
- libpng-dev
env:
- MATRIX_EVAL="CC=gcc-7 && CXX=g++-7"
- LINKER_FLAGS=""
- os: linux
addons:
apt:
sources:
- ubuntu-toolchain-r-test
- llvm-toolchain-trusty-6.0
- sourceline: 'deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-6.0 main'
key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
packages:
- clang-6.0
- libstdc++6
- libpng-dev
env:
- MATRIX_EVAL="CC=clang-6.0 && CXX=clang-6.0"
- LINKER_FLAGS="-stdlib=libc++ -lc++abi"
before_install:
- eval "${MATRIX_EVAL}"
script:
- cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_EXE_LINKER_FLAGS=${LINKER_FLAGS} .
- cmake --build . -- VERBOSE=1
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CMakeLists.txt:
cmake_minimum_required(VERSION 3.9)
project(perlin)
set(CMAKE_CXX_STANDARD 17)
if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -pedantic")
endif()
add_library(noise INTERFACE)
target_sources(noise INTERFACE
${PROJECT_SOURCE_DIR}/include/seamless_noise_generator_2d.h
${PROJECT_SOURCE_DIR}/include/fractal_noise_generator.h
${PROJECT_SOURCE_DIR}/include/perlin_noise_generator.h
${PROJECT_SOURCE_DIR}/include/point.h
${PROJECT_SOURCE_DIR}/include/vector.h
${PROJECT_SOURCE_DIR}/include/math.h)
target_include_directories(noise INTERFACE include)
find_package(PNG)
if (PNG_FOUND)
add_executable(noise_test main.cpp)
target_link_libraries(noise_test ${PNG_LIBRARY} noise m)
else()
message(info "Did not find libpng. Not building test executable.")
endif ()
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如果有人知道我在这里做错了,将不胜感激。
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