On Thu, Mar 6, 2014 at 2:10 PM, Xavier Ducrohet <[email protected]> wrote:
> ok so with progress made on the other thread, I'm running into new
> problems. I'll keep on this thread since it's more relevant.
>
> with:
> toolChains {
> gcc(Gcc) {
> path
> '/path/to/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6/bin'
> getCCompiler().executable = 'x86_64-linux-g++'
> getCppCompiler().executable = 'x86_64-linux-g++'
> getLinker().executable = 'x86_64-linux-ld'
> getAssembler().executable = 'x86_64-linux-as'
> }
>
> building fails with:
>
> * What went wrong:
> Execution failed for task ':compileLinux32MksdcardExecutableMksdcardC'.
> > No tool chain is available to build for platform 'linux32':
> - Tool chain 'gcc' (GNU GCC):
> - Could not find Objective-C++ compiler 'g++'. Searched in:
> /usr/local/google/home/xav/dev/ext/idea133/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6/bin
>
> It looks like it's still looking for "g++" instead of the compiler
> executable I set. I'm also a bit confused with the message mentioning
> "Objective-C++".
>
>
> Well that's a pretty sucky experience :). We've added Objective-C++
support for GCC, but in doing so we've made it a requirement that each GCC
tool chain have an objective-c and objective-c++ compiler. These are named
'gcc' and 'g++' by default, but there's no equivalent mechanism to set the
executable for them.
Your best bet would be to create empty files named 'g++' and 'gcc' in the
same directory. Or symlink the real compilers to those names. Apologies for
the inconvenience.
Daz
> On Thu, Mar 6, 2014 at 12:14 PM, Xavier Ducrohet <[email protected]> wrote:
>
>> Hi Daz,
>>
>> I'm not seeing any message about my toolchain not being available. When I
>> try to build the MacOS exe on linux it does complain with:
>>
>> Execution failed for task ':compileDarwin32MksdcardExecutableMksdcardC'.
>> > No tool chain is available to build for platform 'darwin32':
>> - Tool chain 'visualCpp' (Visual Studio): Visual Studio is not
>> available on this operating system.
>> - Tool chain 'gcc' (GNU GCC): Don't know how to build for platform
>> 'darwin32'.
>> - Tool chain 'clang' (Clang): Could not find C++ compiler 'clang++'
>> in system path.
>>
>> I'm using Gradle 1.11, and I hadn't realized GccTool can customize the
>> executable!
>>
>> My build.gradle file now looks like:
>>
>> model {
>> toolchains {
>> gcc(Gcc) {
>> path
>> '/path/to/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6'
>> cCompiler.executable = 'x86_64-linux-g++'
>> cppCompiler.executable = 'x86_64-linux-g++'
>> linker.executable = 'x86_64-linux-ld'
>> assembler.executable = 'x86_64-linux-as'
>> }
>> }
>> }
>>
>> and it's still not doing anything. The --info still doesn't show any
>> special output about my config being broken (or even used in anyway).
>>
>> Am I correctly replacing the default toolchain or just adding a new one
>> that's lower priority than the default?
>>
>>
>> On Thu, Mar 6, 2014 at 11:59 AM, Daz DeBoer <
>> [email protected]> wrote:
>>
>>> On Thu, Mar 6, 2014 at 12:37 PM, Xavier Ducrohet <[email protected]> wrote:
>>>
>>>> From the example in the docs:
>>>>
>>>> model {
>>>> toolChains {
>>>> gcc(Gcc) {
>>>> // Uncomment to use a GCC install that is not in the PATH
>>>> // path "/usr/bin/gcc"
>>>> }
>>>> }
>>>> }
>>>>
>>>>
>>>> and the DSL documentation, it seems the only configuration for a GCC
>>>> toolchain is the "path".
>>>>
>>>> I've tried to use it but it seems like it always revert to my install
>>>> GCC that's present in the path.
>>>>
>>>> Looking at the info output it shows:
>>>>
>>>> Starting process 'command '/usr/bin/g++''. Working directory: /usr/bin
>>>> Command: /usr/bin/g++ -dM -E -
>>>> Successfully started process 'command '/usr/bin/g++''
>>>> Found C++ compiler with version 4
>>>>
>>>>
>>> Yes, this is likely Gradle executing the compiler to get the version
>>> string.
>>>
>>>>
>>>> But it doesn't show the same for my custom toolchain, so it seems like
>>>> it's not even trying to use it.
>>>>
>>>
>>> If you actually try to build something, you should get a message
>>> describing why the tool chain is not available. Are you not seeing that?
>>> Perhaps just define an executable with a windows platform, and see what
>>> gets reported.
>>>
>>>
>>>>
>>>> One thing though is that my custom toolchain doesn't have a g++ entry
>>>> in its "bin" folder. Instead it has "i686-linux-g++". Is this the source of
>>>> the problem?
>>>>
>>>
>>> Very likely.
>>>
>>>
>>>>
>>>> The Gcc class has properties for the c/c++ compiler, linker, etc... but
>>>> those are read only so I can't customize them.
>>>>
>>>
>>> What version of Gradle are you using? These properties are indeed
>>> read-only, but they are configurable objects of type 'GccTool':
>>>
>>> http://www.gradle.org/docs/nightly/dsl/org.gradle.nativebinaries.toolchain.Gcc.html#org.gradle.nativebinaries.toolchain.Gcc:cCompiler
>>>
>>> Daz
>>>
>>
>>
>
