Philip Hazel schrieb:
> On Sat, 11 Apr 2009, Sheri wrote:
>
>> I downloaded your CMakeLists.txt and other individual source files from
>> here <http://www.exim.org/viewvc/pcre/code/trunk/?sortby=date> which I
>> believe were updated since RC2. Then I tried to configure using
>> cmakesetup in Msys.
>>
>> As before, I got this error:
>>
>> ---------------------------
>> Error
>> ---------------------------
>> CMake Error at CMakeLists.txt:523 (STRING):
>> string no output variable specified
>
> My guess is that the variable CMAKE_BUILD_TYPE is not getting set in
> your environment, somehow. Please add this line:
>
> MESSAGE(STATUS "CMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}")
>
> and see what output you get.
>
>> (Press Cancel to suppress any further messages.)
>
> I can only run it as a command-line thing, not interactively.
>
>> PS, in my message of Apr 1, I reported that when I tried a comma before
>> "buildtype" on that line, I didn't get the error, but Christian never
>> commented on whether that would be correct.
>
> No, its not correct. Consider the line
>
> STRING(TOUPPER ${CMAKE_BUILD_TYPE} buildtype)
>
> If (as I surmise) CMAKE_BUILD_TYPE is unset, you get the original error.
> If you add a comma, the effect is to set the contents of the variable
> "buildtype" to the string ",". No error, but not what you want!
>
> I'm glad you are there and testing; it would be good to get this sorted.
> I'm trying to get 7.9 out the door asap.
>
afaik buildtype is not set when not explicitly set on the commandline
(or cmake-gui) (-DCMAKE_BUILD_TYPE=foo).
I never hit this error because my scripts set the buildtype every time :)
It should be save to assume an empty string when buildtype is not set
Christian
