Antlr4与C++和CMake

Question

我正在尝试将antlr4与C++一起使用.我的根目录中有以下CMakeLists.txt:

cmake_minimum_required(VERSION 3.10)
project(demo VERSION 0.1 DESCRIPTION "demo")

include_directories(${CMAKE_CURRENT_BINARY_DIR})

set(CMAKE_CXX_STANDARD 17)
#############################################################################
# ANTLR SPECIFIC CMAKE COMMANDS
# This is derived from: https://github.com/blorente/antlr-4.7-cpp-cmake-base
#############################################################################
# Set the ocation of the JAR.
set(ANTLR4CPP_JAR_LOCATION ${CMAKE_SOURCE_DIR}/antlr/jar/antlr.jar)

# Add external build for antlrcpp.
include (${CMAKE_SOURCE_DIR}/antlr/runtime/ExternalAntlr4Cpp.cmake)

# add antrl4cpp artifacts to project environment.
include_directories( ${ANTLR4CPP_INCLUDE_DIRS} )
link_directories( ${ANTLR4CPP_LIBS} )
# message(WARNING "Found antlr4cpp libs: ${ANTLR4CPP_LIBS} and includes: ${ANTLR4CPP_INCLUDE_DIRS} ")

# Build the lexer/parser .h/.cpp files off the g4 grammar files.
antlr4cpp_process_grammar(demo demoparser
    ${CMAKE_SOURCE_DIR}/grammar/DemoLexer.g4
    ${CMAKE_SOURCE_DIR}/grammar/DemoParser.g4)

# include the generated files from the grammar/lexer.
include_directories(${antlr4cpp_include_dirs_demoparser})
#############################################################################

# Build demo
add_executable(demo main.cpp ${antlr4cpp_src_files_demoparser})
# Add dependencies for antlr
add_dependencies(demo antlr4cpp antlr4cpp_generation_demoparser)
target_link_libraries(demo antlr4-runtime)

我或多或少地复制了以下示例:"官方"cmake/antlr教程.为简洁起见,我省略了内容include (${CMAKE_SOURCE_DIR}/antlr/runtime/ExternalAntlr4Cpp.cmake)

所以文件都是相同的结构,除了jar.我只是将它作为项目文件包含在内,正如您从set(ANTLR4CPP_JAR_LOCATION)命令中看到的那样,它位于我想要的位置.

当我构建这个时,我收到此错误:

dyld: Library not loaded: libantlr4-runtime.4.7.1.dylib
Referenced from: /path/to/demo/cmake-build-debug/demo
Reason: image not found

但是,当我查看时:/path/to/demo/cmake-build-debug/external/antlr4cpp/lib/我看到libantlr4-runtime.4.7.1.dylib应该使用该target_link_libraries(demo antlr4-runtime)命令引用的文件.那里也有静态库.

我错过了什么吗？为什么CMake没有找到它应该的静态或dylib文件？

Answer 1

在我开始这件事之前，我没有意识到我跑了brew install antlr4-cpp-runtime。它将标头安装到路径中。我在我的机器上执行了此操作，但没有在构建此项目的任何其他机器上执行此操作。突出的问题是，如果未安装运行时，那么它为什么不确定。但它在安装运行时后立即起作用。