我尝试在 ubuntu 12.04、cmake 2.8.7 中使用最简单的 helloworld 示例开始使用 cmake。首先我尝试了一个：
http://www.elpauer.org/stuff/learning_cmake.pdf
project( helloworld )
set( SRCFILES helloWorld.cpp )
add_executable( helloWorld ${SRCFILES} )
我在 CMakeLists.txt 旁边只有一个名为“helloWorld.cpp”的源文件。我创建了一个名为“configure”的目录，进入内部并命名为“cmake ..”。我得到以下信息：
-- The C compiler identification is GNU
-- The CXX compiler identification is GNU
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
CMake Error at CMakeLists.txt:3 (add_executable):
add_executable called with incorrect number of arguments
-- Configuring incomplete, errors occurred!
试图找出问题所在，我得到了以下所有更改：
project( helloworld )
set( SRCFILES helloWorld.cpp )
message ( "src ${SRCFILES}" )
set(x helloWorld.cpp)
set(y 2)
message(${x}${y})
message(${x}${y})
message(${SRCFILES})
add_executable( helloWorld ${SRCFILES} )
add_executable( helloWorld ${x} )
add_executable( helloWorld helloWorld.cpp )
结果再次以：
...
-- Detecting CXX compiler ABI info - done
src
helloWorld.cpp2
helloWorld.cpp2
CMake Error at CMakeLists.txt:8 (message):
message called with incorrect number of arguments
CMake Error at CMakeLists.txt:10 (add_executable):
add_executable called with incorrect number of arguments
CMake Error at CMakeLists.txt:11 (add_executable):
add_executable called with incorrect number of arguments
CMake Error at CMakeLists.txt:12 (add_executable):
add_executable called with incorrect number of arguments
-- Configuring incomplete, errors occurred!
最后，琐碎
project( helloworld )
add_executable( helloWorld helloWorld.cpp )
失败：
...
-- Detecting CXX compiler ABI info - done
CMake Error at CMakeLists.txt:2 (add_executable):
add_executable called with incorrect number of arguments
-- Configuring incomplete, errors occurred!
在每次试用之前，我都会删除 compile 中的所有文件。我只是无法弄清楚缺少什么以及为什么设置了变量..没有设置...没用？
非常感谢您的帮助。