格式为:if(<variable|string> VERSION_LESS_EQUAL <variable|string>)。 VERSION_GREATER:左边版本号大于右边版本号时为真。左右两边的版本号格式为major[.minor[.patch[.tweak]]],每个部分都要求是整数(省略的部分当做0),如果是非整数,从非整数的地方往后会被截断。格式为:if(<variable|string> VERSION_GREATER...
数字比较的谓词没有前缀。文本比较谓词前有STR的前缀,如STREQUAL、STRLESS,使用方式可以参照 C/C++ 中的strcmp。 版本号谓词稍微特殊一点,它的前缀是VERSION_,如VERSION_EQUAL、VERSION_LESS,在进行判断时会把输入的文本按照MAJOR.MINOR.PATCH.TWEAK的格式拆分成四个部分,按从前往后的顺序分别进行比较。如果不是完整的...
Older versions of cmake, according to documentation: https://cmake.org/cmake/help/v3.5/command/if.html , do not know VERSION_LESS_EQUAL, just VERSION_LESS. This leads to errors: CMake Error at somewhere/jsoncpp/CMakeLists.txt:18 (if): if given arguments: "3.5.1" "VERSION_LESS_...
EXISTS : 文件是否存在 DEFINED : 变量是否定义 STREQUAL : 字符串比较,是否相等 LESS : 数字比较,小于 GREATER : 数字比较,大于 - EQUAL : 数字比较,相等 这些变量和语法说明将帮助您更好地编写CMakeLists.txt文件,实现项目的构建和管理。通过学习和掌握CMake,您将能够更轻松地进行跨平台开发和项目维护。
if(<variable|string> VERSION_LESS_EQUAL <variable|string>) # <= if(<variable|string> VERSION_GREATER_EQUAL <variable|string>) # >= 1. 2. 3. 4. 5. <variable|string>表示存储版本号的变量,或合法的版本号字符串(如“3.1.4”)
Binary: STREQUAL, AND, OR, MATCHES (regular expression), VERSION_LESS, VERSION_LESS_EQUAL (CMake 3.7+), etc. Parentheses can be used to group generator-expressions target_compile_options(MyTarget PRIVATE "$<$<CONFIG:Debug>:--my-flag>") 当使用debug编译时,加上–my-flag编译选项 That last...
+ git clone https://github.com/facebook/zstd Cloning into 'zstd'... + cd /usr/local/mcrouter/pkgs/zstd + cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mcrouter/install build/cmake/ CMake Error at CMakeLists.txt:18 (if): if given arguments: "3.5.1" "VERSION_LESS_EQUAL" "3.13.2" Un...
二元EQUAL,LESS,LESS_EQUAL,GREATER,GREATER_EQUAL,STREQUAL,STRLESS,STRLESS_EQUAL,STRGREATER,STRGREATER_EQUAL,VERSION_EQUAL,VERSION_LESS,VERSION_LESS_EQUAL,VERSION_GREATER,VERSION_GREATER_EQUAL,MATCHES 逻辑NOT,AND,OR 布尔常量值 类型值 true1,ON,YES,TRUE,Y,非0值 ...
$ qmake --version QMake version 3.1 Using Qt version 5.9.5 I am using CMake with the following relevant instructions (to give you a context):set(CMAKE_PREFIX_PATH /usr/lib/qt5/bin/) if(CMAKE_VERSION VERSION_LESS "3.7.0") set(CMAKE_INCLUDE_CURRENT_DIR ON) endif() set(CMAKE_...
EXE_LINKER_FLAGS} -rdynamic") #find_program(OBJCOPY_PATH NAMES "llvm-objcopy" "llvm-objcopy..."${CMAKE_EXE_LINKER_FLAGS} -rdynamic") #find_program(OBJCOPY_PATH NAMES "llvm-objcopy" "llvm-objcopy...notfindtheprograminclude-what-you-use") endif() if ...