download gal

gal 3.3 is open source under the Apache-2.0 license. It lives in one repository:

git clone https://github.com/erixoltan/gal3.git
cd gal3
./bootstrap.sh

bootstrap.sh starts from the checked-in stage-0 compiler, rebuilds the compiler with itself twice, and checks that the two rebuilds are byte-identical. It ends with FIXPOINT OK. The only prerequisite is uv, which fetches the right Python itself.

running the other targets

The compiler emits all six languages with nothing else installed. To run what it emits you need that language's own tools:

target	compiler part	you need
Python	`galpy`	nothing more
JavaScript	`galjs`	node
Go	`galgo`	go
Java	`galjava`	a JDK
C++	`galcpp`	g++ with C++17
MUMPS	`galmumps`	YottaDB

checking it yourself

gal3/bin/regress_oracle.sh                       # each case pins a fixed bug
GAL_ORACLE_LANGS=py,js gal3/bin/five_oracle.sh   # same output from every target

Leave GAL_ORACLE_LANGS unset to run every target you have the tools for.

or do not install anything

The browser IDE runs the compiler in the page. It compiles gal to Python or JavaScript and runs the program.