我最近安装了macOS Catalina操作系统,同时也更新了CMake、Clang和LLVM等工具,并搭配Xcode 11.1使用。
sudo rm -rf /Library/Developer/CommandLineTools
xcode-select --install
$ cmake --version
cmake version 3.15.4
$ which cmake
/usr/local/bin/cmake
$ clang --version
Apple clang version 11.0.0 (clang-1100.0.33.8)
Target: x86_64-apple-darwin19.0.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
$ which clang
/usr/bin/clang
CMakeLists.txt如下所示:
cmake_minimum_required(VERSION 3.14)
project("ROZZETA" VERSION 0.0.1 LANGUAGES C)
# Allow us to import cmake scripts from ./cmake
set(CMAKE_C_STANDARD 11)
set(CMAKE_C_STANDARD_REQUIRED ON)
set(CMAKE_C_EXTENSIONS OFF)
set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}")
# Compiler flags
set(CMAKE_C_COMPILER /usr/bin/clang CACHE PATH "")
find_package(GMP REQUIRED)
add_executable(Rozzeta main.c)
target_link_libraries(Rozzeta gmp libgmp libgmp.a)
CMake成功检测到GMP:
/usr/local/bin/cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=/usr/bin/clang -DCMAKE_CXX_COMPILER=c++ -G "CodeBlocks - Unix Makefiles" /<path to project>
-- The C compiler identification is AppleClang 11.0.0.11000033
-- Check for working C compiler: /usr/bin/clang
-- Check for working C compiler: /usr/bin/clang -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Using toolchain file: .
-- Found GMP: /usr/local/include/gmp.h and /usr/local/lib/libgmp.a
-- Configuring done
-- Generating done
构建失败:
cmake --build .
Scanning dependencies of target Rozzeta
[ 50%] Building C object CMakeFiles/Rozzeta.dir/main.c.o
/Users/gajaka/CLionProjects/Rozzeta/main.c:4:10: fatal error: 'gmp.h' file not found
#include <gmp.h>
^~~~~~~
1 error generated.
make[2]: *** [CMakeFiles/Rozzeta.dir/main.c.o] Error 1
make[1]: *** [CMakeFiles/Rozzeta.dir/all] Error 2
make: *** [all] Error 2
我手动编译了以下代码:
cc main.c -lgmp
有人能帮我解决这个问题吗?非常感谢!
target_link_libraries(Rozzeta ...)
,但我没有看到任何target_include_directories(Rozetta ...)
,这让我感到意外。因此,我认为这是一个损坏的CMakeLists.txt
文件,与 macOS/Xcode/clang 无关。 - trojanfoetarget_include_directories
,但现在我又遇到了另一个问题:[50%]正在构建C对象CMakeFiles / Rozzeta.dir / main.c.o [100%]链接C可执行文件Rozzeta ld:找不到库-lgmp clang:错误:链接器命令失败,退出代码1(使用-v查看调用)
我添加的代码是:set(INCLUDE_DIRS /usr/local/include/ /usr/local/lib/)
和target_include_directories(Rozzeta PUBLIC $ {INCLUDE_DIRS})
。也许我缺少一些基本的东西-我是clang的新手。 - Gajaka/usr/local/lib/
不是一个包含目录,而是一个链接器目录,因此请将其放入target_link_directories(Rozetta ...)
中。然而,这使得使用find_package(GMP REQUIRED)
没有意义,所以您可以将其删除。 - trojanfoeld: 找不到库文件 -lgmp clang: 错误: 链接器命令失败,退出代码为1(使用-v查看调用)
。 - Gajakaxcrun
获取。 - trojanfoe