When I became interested in reverse engineering all the way back in 2000, the first Win32 disassembler I stumbled across was simply called "Win32 Program Disassembler" authored by one Sang Cho. I took to calling it 'scd' for Sang Cho's Disassembler. The original program versions and source code are still available for download. I remember being able to compile v0.23 of the source code with gcc under Unix; 0.25 is no go due to extensive reliance on the Win32 development environment.
I recently wanted to use scd again but had some trouble compiling. As was the case the first time I tried compiling the source code a decade ago, it's necessary to transform line endings from DOS -> Unix using 'dos2unix' (I see that this has been renamed to/replaced by 'fromdos' on Ubuntu).
Beyond this, it seems that there are some C constructs that used to be valid but are now rejected by gcc. The first looks like this:
return (int) c = *(PBYTE)((int)lpFile + vCodeOffset);
Ahem, "error: lvalue required as left operand of assignment". Removing the "(int)" before the 'c' makes the problem go away. It's a strange way to write a return statement in general. However, 'c' is a global variable that is apparently part of some YACC/BISON-type output.
The second issue is when a case-switch block has a default label but with no code inside. Current gcc doesn't like that. It's necessary to at least provide a break statement after the default label.
Finally, the program turns out to not be 64-bit safe. It is necessary to compile it in 32-bit mode (compile and link with the '-m32' flag or build on a 32-bit system). The static 32-bit binary should run fine under a 64-bit kernel.
Alternatively: What are some other Win32 disassemblers that work under Linux?