[CMake] Using -DOPTION="something=moof" mangles the OPTION value to "something:UNINITIALIZED=moof"

[Michael Hertling]

On 08/29/2011 02:37 PM, Marcus Fritzsch wrote:
> Turns out, using the "verbose" form of the option definition
> -DOPTION:TYPE=... does not exhibit the issue.
> 
> On 8/29/11, Marcus Fritzsch <fritschy at googlemail.com> wrote:
>> I discovered this behavior on my ubuntu 11.04 amd64 workstation with
>> cmake 2.8.3 when trying to set an -march= option for gcc:
>>
>>     cmake -DCMAKE_C_FLAGS="-Os -march=native -flto
>> -freorder-blocks-and-partition" ....
>>
>> was mangled to be
>>
>>     CMAKE_C_FLAGS=-Os -march:UNINITIALIZED=native -flto
>> -freorder-blocks-and-partition
>>
>> in the CMakeCache.txt.
>>
>> I haven't had much luck with the search engine of my choice finding
>> anything on the issue.

With the following simple CMakeLists.txt, I can't confirm this issue:

CMAKE_MINIMUM_REQUIRED(VERSION 2.8 FATAL_ERROR)
PROJECT(OPTIONS C)
SET(CMAKE_VERBOSE_MAKEFILE ON)
FILE(WRITE ${CMAKE_BINARY_DIR}/main.c "int main(void){return 0;}\n")
ADD_EXECUTABLE(main main.c)

> % cmake -DCMAKE_C_FLAGS="-Os -march=native -flto -freorder-blocks-and-partition" ...
> ...
> % grep CMAKE_C_FLAGS:STRING CMakeCache.txt
> CMAKE_C_FLAGS:STRING=-Os -march=native -flto -freorder-blocks-and-partition

Could you try with this exemplary project and report the results,
especially the exact command line? BTW, which shell do you use?

Regards,

Michael