How to do a static build?

[piranna]

I'm trying to do a cross-compile static build from scratch of node-canvas (including download automatically the Cairo library) to be used on NodeOS, but I'm not able to make it work. According to #349 there should be support for static builds just by setting all the variables to false, but I get errors about cairo.h is not available:

In file included from ../src/CanvasGradient.cc:9:0:
../src/Canvas.h:19:25: fatal error: cairo/cairo.h: No such file or directory
compilation terminated.

The pull-request I put before seems to have support to detect automatically if Cairo is available on the system, and if not, download de dependencies source code and build a static Cairo library, but I don't know if this functionality is already available on node-canvas (and how to enable it), or if not, the reason why the pull-request was not finally accepted... :-/

/cc @ReneHollander

[piranna]

I've done a merge of the static Cairo fork and the one of @ReneHollander with support for FbDev and after some minor tune-up it has compiled on Ubuntu and seems it's working correctly. I've uploaded the merge to NodeOS fork. When compiling for NodeOS it doesn't work because the cross-toolchain doesn't have zlib.h file, so I'll try to modify the fork to also download and include it.

[piranna]

I've fixed my fork so it can done a standalone build (i.e. don't need to use global system libraries but instead the ones from the downloaded dependencies), but the final canvas.node file is still a dynamically linked one, throwing an error about jinit_arith_decoder being missing, that seems it's included in libjpeg and so it should be in the linked binary. How can I be able to create a fully statically linked one?

[piranna]

I've managed to compile it statically. It's not working due lacks of _ZN8FontFace11constructorE symbol probably due to some code I need to comment, and also needs a workaround on system libraries
due to an unfixed bug on gcc, but it's a progress. I hope to be able to fix them and do a pull-request, but any help is welcome.

[piranna]

I've fixed the problem with the missing symbol since it was due to the commented FontFace.cc file and just by copying the fontconfig.h file to itsposition (seems it's only needed for some constants), but when trying to use the statically linked library on NodeOS I get the next error:

The missing jinit_arith_decoder symbol is inside the libjpeg-turbo library and it's correctly linked inside the canvas.node file, so I don't know what I'm doing wrong. I've set -fPIC flag both to the C compiler and linker options as indicated at http://www.microhowto.info/howto/build_a_shared_library_using_gcc.html but it didn't worked too. Any idea?

[piranna]

I've fixed this at #571, now node-canvas can be compiled as a statically linked library with all its dependencies inside itself if Cairo lib is not found or the --has_cairo flag is set to false.

[sebastianrath]

Has anyone achieved to do a static build on macOS?