Android compile problem, local and on Travis

Dirk Hohndel dirk at
Tue Dec 26 09:13:43 PST 2017

> On Dec 26, 2017, at 8:48 AM, Jan Mulder <jlmulder at> wrote:
>> I did do a local build and I don't get the error that you show.
>> I then gripped through all of the cmake created build files in my build directory for doc (not docs, documentation, etc, but "doc") and came up empty.
>> Next I removed my build directories and rebuilt from scratch; there I ran into an odd bug where cmake couldn't find the build program for Unix makefiles.
>> Adding a -DCMAKE_MAKE_PROGRAM=make fixed that (but I don't understand what's up with that).
> I'm seeing that CMAKE_MAKE_PROGRAM thing, as well. Annoying, but easy to fix.
> To add a new Android build thing ... when I build libgit2 with ndk-14d, I finally end up with one unresolved symbol (mmap64). So, I currently build libgit2 with ndk 10e. Lots of things to find on the internet on mmap64 stuff, but unclear to me, at this point, if it is a libgit2 problem or a NDK thing.

Hmm - the libgit2 build on Travis seems to work... ahh, we're still building with 14b. So let's not change that :-)

>> Looking through the logic what we do and the snippet you show up there... hmm. We end up building the docs even though we don't bundle them. And that does happen for me after the apk is built.
>> Can you take a look at subsurface-mobile-build-arm/CMakeFiles/documentationLink.dir/build.make and see if there's anything suspicious in there? For me there is no reference to just "doc" (nor is there in any of the other files in that directory)
> That was the file I had been looking at earlier ... there is a lonely "doc" and the end of the following target (on my build):
> CMakeFiles/documentation:
>        /usr/bin/cmake -C <path stripped>/src/subsurface/Documentation OUT=<path stripped>/src/subsurface-mobile-build-arm/Documentation/ doc

That would obviously cause the build failure. If you remove your build directory and have the script recreate it, do you still get this?


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