Visual Studio Solution to NMAKE Makefile Converter

sln2nmake.pl is a Perl script that converts Visual Studio .sln files and their associated .vcproj or .vcxproj project files into NMAKE-compatible Makefiles. It generates project-specific Makefiles for both Release and Debug configurations, using backslashes (\) for Windows compatibility, and a master Makefile to build all projects.

Features

• Supports legacy .vcproj (pre-VS 2010) and modern .vcxproj (VS 2010+) files.
• Extracts project details: source files (.cpp/.c), include directories, linker dependencies, and advanced linker settings (e.g., output file, subsystem, entry point).
• Generates targets for Win32 and x64 in both Release (/MT) and Debug (/MTd) configurations.
• Creates a master Makefile for solution-wide builds.
• Uses backslashes exclusively for Windows NMAKE compatibility.

Usage

Syntax : sln2nmake.pl -pl <x64|win32> -conf <debug|release>  
                     [-opts <linker opts>] [-v] <fn.sln> [<vcproj/vcxprojfn>]  
         generate a Makefile from a sln file  
  
Options: -pl      platform, default: x64  
         -conf    config,   default: Release  
         -opts    optional linker options  
         -v       be more verbose  

Example

perl sln2nmake.pl MySolution.sln
or
perl sln2nmake.pl MySolution.sln MyProject1
Processes MySolution.sln, generates a Makefile in MyProject1, and a master Makefile in the current directory.

• Build all projects: nmake

• Clean all projects: nmake clean

• Build specific configuration:
  nmake project1

Output Structure

SolutionDir\
├── Makefile
├── Makefile_Project1
├── Makefile_Project2
├── Project1\
│   └── Project1.vcxproj
├── Project2\
│   └── Project2.vcproj
└── MySolution.sln

Limitations

• clean target assumes default executable name ($projnm.exe); custom OutputFile paths may not be cleaned.
• Only supports Release and Debug configurations (extendable via code).

License

MIT License - free to use, modify, and distribute.