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cosmopolitan/README.md
Justine Tunney 7ce8ccb94f Cosmopolitan 0.1 
All 196 tests passing on the following systems is confirmed:

  - Alpine Linux 5.4.43
  - Debian Linux 10 Buster 4.19.0
  - Red Hat Enterprise Linux 7 3.10.0
  - Red Hat Enterprise Linux 5 2.6.18
  - XNU 19.6.0
  - Windows 7
  - Windows 10
  - FreeBSD 12.1
  - OpenBSD 6.8

Proof:

  https://justine.lol/cosmopolitan/cosmopolitan-0.1.png

My name is Justine Tunney and I approve this release.
2021-01-28 16:19:10 -08:00

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Cosmopolitan

Cosmopolitan Libc makes C a build-once run-anywhere language, like Java, except it doesn't need an interpreter or virtual machine. Instead, it reconfigures stock GCC to output a POSIX-approved polyglot format that runs natively on Linux + Mac + Windows + FreeBSD + OpenBSD + BIOS with the best possible performance and the tiniest footprint imaginable.

Background

For an introduction to this project, please read the αcτµαlly pδrταblε εxεcµταblε blog post and cosmopolitan libc website. We also have API documentation.

Getting Started

Here's how to get started with the freestanding hermetically-sealed monolithic source repository:

tar xf cosmopolitan-0.1.tar.gz  # see our releases page
cd cosmo
make -j12
o//examples/hello.com

Here's how to get started with the amalgamated binaries, which let you bring your own build system:

unzip cosmopolitan-amalgamated-0.1.zip  # see our releases page
echo 'main() { printf("hello world\n"); }' >hello.c
gcc -g -O -static -fno-pie -no-pie -mno-red-zone -nostdlib -nostdinc \
  -o hello.com.dbg hello.c -Wl,--gc-sections -Wl,-z,max-page-size=0x1000 -fuse-ld=bfd \
  -Wl,-T,ape.lds -include cosmopolitan.h crt.o ape.o cosmopolitan.a
objcopy -SO binary hello.com.dbg hello.com
./hello.com