有没有办法在编译外部项目后才能找到一个包,因为一旦这个外部项目被编译就会创建要查找的包?
现在,我有:
include(ExternalProject)
externalproject_add(
libantlr3c
SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/lib/libantlr3c-3.1.3
CONFIGURE_COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/lib/libantlr3c-3.1.3/configure -prefix=${CMAKE_CURRENT_SOURCE_DIR}/lib/libantlr3c-3.1.3
PREFIX ${CMAKE_CURRENT_SOURCE_DIR}/lib/libantlr3c-3.1.3
BUILD_COMMAND make
BUILD_IN_SOURCE 1
)
find_library(
antlr3c
libantlr3c.a
HINTS ${CMAKE_CURRENT_SOURCE_DIR}/lib/libantlr3c-3.1.3
)
当然失败了。
谢谢。
答案 0 :(得分:3)
由于您可以控制库的创建位置,因此无需使用find_library
。您可以直接使用link_directories
。您可能希望include目录中的相同内容将include路径添加到编译行。像这样的东西应该这样做:
include(ExternalProject)
set(antlr3c_LIBRARIES
${CMAKE_CURRENT_SOURCE_DIR}/lib/libantlr3c-3.1.3)
set(antlr3c_INCLUDE_DIRS
${CMAKE_CURRENT_SOURCE_DIR}/lib/libantlr3c-3.1.3/include)
externalproject_add(
libantlr3c
....
)
link_directories(${antlr3c_LIBRARIES})
include_directories(${antlr3c_INCLUDE_DIRS})
add_executable(my_exe ${SOURCES})
target_link_libraries(my_exe antlr) # or antlr3c or whatever -lantlr is needed