Question

FindFoo.cmake：

#  Foo_FOUND - system has Foo
#  Foo_INCLUDE_DIRS - the Foo include directories
#  Foo_LIBRARIES - link these to use Foo
#  Foo_VERSION
#  Foo_DEFINITIONS - compiler switches required for using Foo

find_package(PkgConfig)
pkg_check_modules(PC_Foo QUIET Foo)

find_path(Foo_INCLUDE_DIR Foo/Foo.h
  PATHS ${PC_Foo_INCLUDEDIR} ${PC_Foo_INCLUDE_DIRS}
)

find_library(Foo_LIBRARY Foo
  PATHS ${PC_Foo_LIBDIR} ${PC_Foo_LIBRARY_DIRS}
)

set(Foo_VERSION ${PC_Foo_VERSION})

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Foo
  FOUND_VAR Foo_FOUND
  REQUIRED_VARS
    Foo_LIBRARY
    Foo_INCLUDE_DIR
  VERSION_VAR Foo_VERSION
)

if(Foo_FOUND)
  set(Foo_LIBRARIES ${Foo_LIBRARY})
  set(Foo_INCLUDE_DIRS ${Foo_INCLUDE_DIR})
  set(Foo_DEFINITIONS ${PC_Foo_CFLAGS_OTHER})
endif()

mark_as_advanced(
  Foo_INCLUDE_DIR
  Foo_LIBRARY
)

的CMakeLists.txt：

CMAKE_MINIMUM_REQUIRED(VERSION 2.8.8)
PROJECT(sandbox)

set(CMAKE_AUTOMOC ON)
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/modules/")

FIND_PACKAGE(Qt5Core REQUIRED)
find_package(Foo REQUIRED)
include_directories(${Foo_INCLUDE_DIRS})

SET(sandbox_SOURCES main.cpp)
ADD_EXECUTABLE(sandbox ${sandbox_SOURCES})

QT5_USE_MODULES(sandbox Core)
TARGET_LINK_LIBRARIES(sandbox ${Foo_LIBRARIES})

#include <Bar1.h>适用于我的计划，而#include <Foo/Bar1.h>则不适用。而真正的问题是我无法构建我的程序，因为Bar1.h包含#include <Foo/Bar2.h>和：

... Foo / Bar1.h：致命错误：Foo / Bar2.h：没有这样的文件或目录编译终止。

CMake 3.5.1

Answer 1

看起来问题是CMake缓存。我删除了CMakeFiles目录中的所有内容，然后CMake无法配置项目：

无法找到Foo（缺少：Foo_INCLUDE_DIR）

我必须将PATH_SUFFIXES添加到find_path（），所有问题都消失了。

图书馆无法看到自己的标题

1 个答案: