[CMake] setting CMAKE_C_COMPILER

[Naram Qashat]

Bill O'Hara wrote:
> In my top-level CMakeLists.txt I'm trying to fiddle with the 
> CMAKE_C_COMPILER when certain CMAKE_BUILD_TYPEs are set. In particular 
> if the build type is purify then I'm trying to do this:
> 
> set(CMAKE_C_COMPILER "${PURIFYCOMMAND} ${CMAKE_C_COMPILER}")
> 
> The problem is that the resulting attempt to compile breaks because 
> /bin/sh is fed
> 
> "/path/to/my/purify /path/to/my/gcc" hello.c
> 
> complete with quote characters.. and sh promptly complains it can't find 
> any such command.
> 
> Is this just a daft way to try to do this? Is there a recommended way to 
> extend the compiler command itself (rather than flags to the compiler)?
> 
> b.

What you could do instead is set CMAKE_C_COMPILE_OBJECT, like so:

set(CMAKE_C_COMPILE_OBJECT "${PURIFYCOMMAND} ${CMAKE_C_COMPILE_OBJECT}")

That'll modify the command used to compile by prefixing it.

Naram Qashat