Unknown CMake command "CHECK_INCLUDE_FILE_CXX"

Question

I tried running cmake to generate the build tools for linux on vmime with the latest source from git hub, it generated the following errors. Thoughts??

vmime$ /usr/local/bin/cmake -G "Unix Makefiles"
CMake Error at CMakeLists.txt:20 (INCLUDE):
  include could not find load file:
    CheckIncludeFileCxx
-- Build type: Debug
CMake Error at CMakeLists.txt:452 (CHECK_INCLUDE_FILE_CXX):
  Unknown CMake command "CHECK_INCLUDE_FILE_CXX".
-- Configuring incomplete, errors occurred!

score 2 · Answer 1 · answered Sep 06 '13 at 19:21

2

In your CMakeLists.txt at line 20, you have

include(CheckIncludeFileCxx)

This should be

include(CheckIncludeFileCXX)
                         ^^--- Uppercase

Once CheckIncludeFileCXX is properly included, the error on line 452 should also disappear, since the file defines the function CHECK_INCLUDE_FILE_CXX.

It has probably only been tested on Windows; since Windows filenames are case-insensitive this would have worked.

answered Sep 06 '13 at 19:21

Fraser

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that did it!! thanks. how do i change from the default debug build to release? – rmak Sep 06 '13 at 19:31
I think on Linux the default build is maybe Release. Anyway, this is covered in [the FAQ](http://www.cmake.org/Wiki/CMake_FAQ#How_can_I_change_the_default_build_mode_and_see_it_reflected_in_the_GUI.3F) – Fraser Sep 06 '13 at 19:42

Unknown CMake command "CHECK_INCLUDE_FILE_CXX"

1 Answers1