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我有以下CMakeLists.txt
:影响
cmake_minimum_required(VERSION 2.6)
set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
find_package(FOO QUIET NO_CMAKE_PACKAGE_REGISTRY)
if (FOO_FOUND)
message("FOO is found")
else (FOO_FOUND)
message("FOO not found")
endif (FOO_FOUND)
find_package(FOO QUIET)
if (FOO_FOUND)
message("FOO (2) is found")
else (FOO_FOUND)
message("FOO (2) not found")
endif (FOO_FOUND)
有一个文件${CMAKE_SOURCE_DIR}/cmake/FindFOO.cmake
。然而,当我运行cmake
检测包FOO
仅在第二种情况:
-- (...)
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
FOO not found
FOO (2) is found
-- Configuring done
-- Generating done
-- Build files have been written to: /home/me/tmp/build
我的文档的理解是,NO_CMAKE_PACKAGE_REGISTRY
禁止find_package()
看~/.cmake/package/FOO
但我在这里什么都没有。我有与cmake 2.8.9和cmake 3.5.1相同的行为。
为什么find_package()
在第一种情况下找不到该文件?
如果我复制'FindFOO.cmake'成'FOOConfig.cmake'它不起作用或者同一地点造成的。但是如果我将'CMAKE_PREFIX_PATH'定义为指向我的本地目录'$ {CMAKE_SOURCE_DIR}/cmake /',那么它确实适用于这两种情况。谢谢! – xiawi
不同模式的'find_package()'使用不同的algothms进行搜索和不同的变量。您最初设置的变量'CMAKE_MODULE_PATH'仅影响**模块**模式,变量'CMAKE_PREFIX_PATH'仅影响** config **模式。 – Tsyvarev