That's great. Thanks for your patience! David
> -----Original Message----- > From: cmake-boun...@cmake.org [mailto:cmake-boun...@cmake.org] On Behalf > Of Michael Wild > Sent: 10 September 2010 12:30 > To: David Aldrich > Cc: cmake@cmake.org > Subject: Re: [CMake] Question about add_custom_command > > > On 10. Sep, 2010, at 12:38 , David Aldrich wrote: > > > Hi Michael > > > > Thanks for your help. Please see question below. > > > >> CMAKE_MINIMUM_REQUIRED(VERSION 2.8 FATAL_ERROR) PROJECT(GENDEP C) > >> FILE(WRITE ${CMAKE_BINARY_DIR}/g.c "void g(void){}\n") > >> ADD_CUSTOM_COMMAND( > >> OUTPUT ${CMAKE_BINARY_DIR}/f.c > >> COMMAND echo "void f(void){}" > ${CMAKE_BINARY_DIR}/f.c > >> DEPENDS ${CMAKE_BINARY_DIR}/g.c > >> VERBATIM) > >> FILE(WRITE ${CMAKE_BINARY_DIR}/main.c "int main(void){f();return > >> 0;}\n") ADD_EXECUTABLE(main main.c f.c) > >> > >> "f.c" is regenerated and, thus, "main" rebuilt if "g.c" is touched > >> although it's not incorporated in "main". > > > > In my case, the dependencies of the f.c will be all the dependencies of > main. i.e. if any source file contributing to the exe changes we must > first regenerate f.c. > > > > Now our executable depends on many source files. I assume you are saying > that I need to add the same list of dependencies to the ADD_CUSTOM_COMMAND. > Can I specify a list of files further up in CMakeLists.txt so that I only > need to enumerate the list once? > > > > Regards > > > > David > > set(SRCS a.c b.c d.c e.c) > > add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/f.c > COMMAND ... > DEPENDS ${SRCS} > COMMENT "Generating f.c" > VERBATIM) > list(APPEND SRCS ${CMAKE_BINARY_DIR}/f.c) > > add_executable(main ${SRCS}) > > > HTH > > Michael > > -- > There is always a well-known solution to every human problem -- neat, > plausible, and wrong. > H. L. Mencken _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
