How to Apply a GCC Patch on Windows 7

Released by the Free Software Foundation, gcc is a *nix-based C compiler usually operated via the command line. It often comes distributed with a *nix installation, so if you are running Unix or a Linux variant you likely have it on your system.

The GNU Compiler Collection includes front ends for C, C++, Objective-C, Fortran, Java, Ada, and Go, as well as libraries for these languages (libstdc++, libgcj,...). GCC was originally written as the compiler for the GNU operating system. The GNU system was developed to be 100% free software, free in the sense that it respects the user's freedom.

We strive to provide regular, high quality releases, which we want to work well on a variety of native and cross targets (including GNU/Linux), and encourage everyone to contribute changes or help testing GCC. Our sources are readily and freely available via SVN and weekly snapshots.
Major decisions about GCC are made by the steering committee, guided by the mission statement.

1. first, you need to install the gcc compiler. you can use DevC++ or MinGw. Download the compiler here :
 DevC++
 MinGw
2. after the install is complete, go to the folder where your compiler installation, then go to the folder "bin" and copy the URL.
example:
C:\Dev Cpp\bin\
or
C:\mingw\bin\



3. Go to "Computer" properties, then select "advanced system settings", a new window will appear.



4.  in the "system variables", search variable named 'path', then click edit ...



5. In "Variable value", add a semicolon (;) at the very back, and paste your Compiler URL... and then click OK..


6. Patching the GCC Compiler is successfully.  now, tes your GCC.....

Hopefully helpful