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0000413

CMake

public

2003-12-02 02:54

2003-12-29 13:48

Reporter

Gerhard Esterhuizen

Assigned To

Bill Hoffman

Priority

normal

Severity

major

Reproducibility

always

Status

closed

Resolution

no change required

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OS Version

Product Version

Target Version

Fixed in Version

Summary

0000413: CMAKE_CURRENT_SOURCE and ADD_CUSTOM_COMMAND error

Description

Referencing the
"CMAKE_CURRENT_SOURCE" variable in a "MAIN_DEPENDENCY" causes CMake error.

The following entry in CMakeLists.txt

ADD_CUSTOM_COMMAND(OUTPUT atarget
                  COMMAND /bin/true
                  MAIN_DEPENDENCY $(CMAKE_CURRENT_SOURCE)/afile)

causes CMake tor output:

-- Check for working C compiler: gcc -- works
-- Check for working CXX compiler: c++ -- works
CMake Error: can not find file
/home/goof/devel/tmp/tcmake/$(CMAKE_CURRENT_SOURCE)/afile

Tried .c .C .c++ .cc .cpp .cxx .m .M .mm .h .h++ .hm .hpp .hxx .in .txx
CMake Error: CMake failed to properly look up cmSourceFile:
$(CMAKE_CURRENT_SOURCE)/afile
-- Configuring done

However, the following entries work:

ADD_CUSTOM_COMMAND(OUTPUT atarget
                   COMMAND /bin/true
                   DEPENDENCIES $(CMAKE_CURRENT_SOURCE)/afile)

ADD_CUSTOM_COMMAND(OUTPUT atarget
                   COMMAND /bin/true
                   MAIN_DEPENDENCY afile)

Therefore, the problem only seems to occur when using "CMAKE_CURRENT_SOURCE" as part of "MAIN_DEPENDANCY".

I only tested this under Linux using CMake 1.8.1.

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Notes
(0000412) Brad King (manager) 2003-12-29 13:46	CMake variables should be referenced using curly braces "{" and "}". The given example uses parens "(" and ")", which are not expected to work.

(0000413) Brad King (manager) 2003-12-29 13:48	The parens were working in other dependencies because the make process is expanding them. You probably want MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/afile

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