CMake Warning at src/CMakeLists.txt:8 (find_package):
  By not providing "Findcurl.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "curl", but
  CMake did not find one.

  Could not find a package configuration file provided by "curl" with any of
  the following names:

    curlConfig.cmake
    curl-config.cmake

  Add the installation prefix of "curl" to CMAKE_PREFIX_PATH or set
  "curl_DIR" to a directory containing one of the above files.  If "curl"
  provides a separate development package or SDK, be sure it has been
  installed.

Hi, After hours of trying to build to hello-module project, found that according to the documentation for find_library you need to have PATHS rather than PATH to define additional paths for searching for the libraries.

感觉对unset的行为有点困惑。

An option that the user can select. Can accept condition to control when option is available for user.

Usage:

mxnet_option(<option_variable> "doc string" [IF ])

function(mxnet_option variable description value) set(__value ${value}) set(__condition "") set(__varname "__value") foreach(arg ${ARGN}) if(arg STREQUAL "IF" OR arg STREQUAL "if") set(__varname "__condition") else() list(APPEND ${__varname} ${arg}) endif() endforeach() unset(__varname) ==========>这里为什么要unset() unset之后这个变量不是不起作用？ if("${__condition}" STREQUAL "") set(__condition 2 GREATER 1) endif()

if(${__condition}) if("${__value}" MATCHES ";") if(${__value}) option(${variable} "${description}" ON) else() option(${variable} "${description}" OFF) endif() elseif(DEFINED ${__value}) if(${__value}) option(${variable} "${description}" ON) else() option(${variable} "${description}" OFF) endif() else() option(${variable} "${description}" ${__value}) endif() else() unset(${variable} CACHE) endif() endfunction()

你好！我在阅读cmake-practice的文档时，有关于编译出hello.so和hello.a的两个库的内容中，涉及到使用 SET_TARGET_PROPERTIES(hello PROPERTIES CLEAN_DIRECT_OUTPUT 1) SET_TARGET_PROPERTIES(hello_static PROPERTIES CLEAN_DIRECT_OUTPUT 1) 来防止库因同名而被删除的问题，但是个人（目前使用的cmake是3.10.2）经过一些尝试，在不使用以上语句的情况下也能成功编译出两个同名的库，有没有可能是版本更新后对此进行了优化导致的？或者请问我这样的尝试有什么不当之处吗？还请赐教

ADD_LIBRARY(hello SHARED ${LIBHELLO_SRC})

#[[
SET_TARGET_PROPERTIES(
    hello 
    PROPERTIES 
                CLEAN_DIRECT_OUTPUT 1            
)
]]

ADD_LIBRARY(hello_static STATIC ${LIBHELLO_SRC})

SET_TARGET_PROPERTIES(
    hello_static
    PROPERTIES 
                OUTPUT_NAME "hello"
)

图片

/backup/t1/CMakeLists.txt

PROJECT (HELLO)
SET(SRC_LIST main.c)
MESSAGE(STATUS "This is BINARY dir " ${HELLO_BINARY_DIR})
MESSAGE(STATUS "This is SOURCE dir "${HELLO_SOURCE_DIR})
ADD_EXECUTABLE(hello SRC_LIST)

line 1: space after PROJECT is unnessary. line 4: need no space before ${HELLO_SOURCE_DIR}, or there will be warning. line 5: ${SRC_LIST} not SRC_LIST, or there will be an error.

Hi there, When I try the first example in cmake-pratice, page 6, cmake complains cannot find source files.

-- This is BINARY dir
-- This is SOURCE dir
-- Configuring done
CMake Error at CMakeLists.txt:8 (add_executable):
  Cannot find source file:

    SRC_LIST

  Tried extensions .c .C .c++ .cc .cpp .cxx .m .M .mm .h .hh .h++ .hm .hpp
  .hxx .in .txx


CMake Error: CMake can not determine linker language for target: hello
CMake Error: Cannot determine link language for target "hello".

After I modified add_executable(hello SRC_LIST) to add_executable(hello ${SRC_LIST}), this issue had been solved. So here must be using variable name. Can you check and update it?

cmake version 3.5.1