David Blado wrote:
Congratulations to the CMake team for getting this awaited release to
the community!
I have a quick question regarding preprocessor definitions being escaped
automatically. In CMake < 2.4, I would use:
ADD_DEFINITIONS(-D_U_=\"__attribute__\(\(used\)\)\")
To tell gcc that I wanted to use _U_ in my code to prevent the compiler
from optimizing something out of my binary.
I'm getting a warning in CMake 2.6.0 saying that I no longer need to
escape like above. So I tried:
ADD_DEFINITIONS(-D_U_=__attribute__((used)))
And got from CMake: Parse error. Function missing ending ")". Instead
found left paren with text "(".
How should I format my ADD_DEFINITIONS(-D_U_=__attribute__((used))) to
work properly in CMake 2.6.0 w/out a warning?
This seems to work:
cmake_minimum_required(VERSION 2.6)
add_definitions("-D_U_=__attribute__((used))")
add_library(foo foo.c)
It produces (no warnings):
C_DEFINES = -D"_U_=__attribute__((used))"
-Bill
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