Compiling Gambit software for different target environments

From Gambit wiki

How to build GUI apps for Win32

The misc\vcexpress.bat file, used as described in INSTALL, both found in the source repo file are good sources of inspiration on how to build Gambit apps using MSVC.

Here's a good GUI example app for win32, call it test.scm:

(c-declare "#include <windows.h>")
(define message-box (c-lambda (UTF-8-string) void "MessageBox(0,___arg1,\"Dbg\",0);"))
(message-box "Hi!")

In order to compile it, first run misc\vcexpress to get lib\libgambc.lib . Then do:

C:\Program Files\Microsoft Visual Studio 8\VC\vcvarsall
gsc -link test
cl.exe -Fetest.exe -nologo -Oityb1 -MT -D_CRT_SECURE_NO_DEPRECATE -c -I"C:\gambc-v4_3_2-devel\include" -I"C:\gambc-v4_3_2-devel\lib" -D___SINGLE_HOST -D_WINDOWS "test_.c" "test.c"
cl -Fetest.exe test.obj test_.obj C:\gambc-v4_3_2-devel\lib\libgambc.lib Kernel32.Lib User32.Lib Gdi32.Lib WS2_32.Lib /link /subsystem:windows

Voila! The key recipe in here is to pass -D_WINDOWS to cl.exe, and /subsystem:windows to link.exe .

Upon any (display) (force-output) you do, a console window will be allocated. This can be remedied by doing (current-output-port (open-dummy)) (current-input-port (open-dummy)) though.

Pass -dr:- to force the app open a console.

For more info see the ml thread around here.