Integration with other build systems

[andy5995]

Hi! Interesting project. I just ran the example hello world program from the README and skimmed some of the other info.

Is there any documentation on how to integrate cosmo with other build systems? For example, I usually use @mesonbuild for all my projects. To start learning how to use cosmo with something small, I was thinking about making a portable binary for ReMove to Waste.

[jart]

The amalgamated binary releases let you bring your own build system.

wget https://justine.lol/cosmopolitan/cosmopolitan-amalgamation-2.0.zip
unzip cosmopolitan-amalgamation-2.0.zip
printf 'main() { printf("hello world\\n"); }\n' >hello.c
gcc -g -Os -static -nostdlib -nostdinc -fno-pie -no-pie -mno-red-zone \
  -fno-omit-frame-pointer -pg -mnop-mcount -mno-tls-direct-seg-refs \
  -o hello.com.dbg hello.c -fuse-ld=bfd -Wl,-T,ape.lds -Wl,--gc-sections \
  -include cosmopolitan.h crt.o ape-no-modify-self.o cosmopolitan.a
objcopy -S -O binary hello.com.dbg hello.com

[jart]

One thing you could do is create a cosmopolitan-meson-template project (similar to https://github.com/shmup/redbean-template) that shows people how to use your build system. We would then add your project to https://github.com/shmup/awesome-cosmopolitan (CC: @shmup)

[andy5995]

Nice awesome list! Thanks for sharing. Starred.

I'm not sure if making a template like that interests me at this point.

I was thinking it would make sense to have this info added to the meson docs (but I'm not an @mesonbuild maintainer). How would you feel if I opened up a discussion on the meson project for some info to be added to their website?

[ahgamut]

c_args = [
    '--verbose',
    '-static',
    '-nostdlib',
    '-nostdinc',
    '-fno-pie',
    '-no-pie',
    '-mno-red-zone',
    '-fno-omit-frame-pointer',
    '-mnop-mcount',
    '-mno-tls-direct-seg-refs',
    '-fuse-ld=bfd',
    '-include',
    'cosmopolitan.h',
]

@jart is it possible to create a Makefile target that rolls up headers into the libc/isystem structure in addition to the single-file cosmopolitan.h?

I am asking because using -isystem cosmo_repo/libc/system/ -I cosmo_repo/ -include cosmo_repo/libc/normalize.inc instead of -include cosmopolitan.h would prevent errors like #403

[jart]

Yes it should be possible. Another thing we might want to consider is just using the Musl system headers.

[andy5995]

I was thinking it would make sense to have this info added to the meson docs (but I'm not an @mesonbuild maintainer). How would you feel if I opened up a discussion on the meson project for some info to be added to their website?

@jart I noticed your thumbs up, so I created a ticket

mesonbuild/meson#10734)

[dangarbri]

I think it'd be nice to have a wiki page or a set of examples for integrating with other build systems.
Maybe even just point it to this discussion.

I'm an old soul and still prefer make. I just created this makefile which should do fine for small projects.

[andy5995]

I'm an old soul and still prefer make. I just created this makefile which should do fine for small projects.

Starred.