[CMake] file not generated with ADD_CUSTOM_COMMAND

[Alexander Neundorf]

Hi, 
 
shouldn't this work ? 
 
main.c: 
 
#include "generated.h" 
 
#include <stdio.h> 
 
int main() 
{ 
   printf("hello world\n"); 
   return 0; 
} 
 
CMakeLists.txt: 
 
ADD_CUSTOM_COMMAND(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/generated.h COMMAND 
sh ARGS -c "echo // > generated.h" ) 
ADD_EXECUTABLE(hello main.cpp) 
 
--- 
 
The custom command isn't generated. I guess cmDependsC.cxx finds the 
include "generated.h" but since it doesn't exist, it isn't added to the 
list of dependencies and that's why when building generated.h simply 
doesn't exist. 
Adding "generated.h" to the list of source files doesn't change anything. 
 
Bye 
Alex 
 

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