Fork of JWasm by http://www.japheth.de with customizations. See Readme.txt for details on the original JWasm.

These customizations are mostly aimed at syncing JWasm and MASM preprocessors' behavior and making it possible to easily use JWasm preprocessor instead of MASM on platforms other than Windows.

This fork can be built on OS X. To do that simply run

$ make -f GccOSX.mak

Or

$ make -f GccOSX.mak DEBUG=1

to build a version with debug features.

NOTE: If you're running Xcode 4.3 and newer, you need Command Line Tools in order to build this project.

This fork was fixed to ignore any assembly passes other than the preprocessor pass when -EP option was given. Original JWasm would go forward and try to create the object file which is not what MASM does.

Also .err file generation was suppressed for -EP since this option usually implies feeding the preprocessed code through some pipe and additional files are not wanted and even may do bad.

If you use -eq option with -EP then JWasm will behave as a totally forgiving preprocessor. This means that while no errors are reported, JWasm return code will also be 0. That's because if you suppress errors on screen and do not write them to .err file, there's no good in seeing the build fail with no error messages.