Re: [Dev-C++] .cpp to .lib or .a

[<or...@vp...>]

age...@co... wrote:
> I have been wanting to write my own library of classes that perform OpenGL 
> functions in order to reuse code effectivley. I was thinking about adding the 
> declerations in a .h file, and writing the actual definitions in a .cpp file, 
> which i would convert to a .lib file. Dev-C++ uses .a, so would I just run the 
> project static library to make the .a file, or is there a command line utility 
> which takes a .cpp file and makes it into a .a file? Thank you for replies in 
> advance.

There IS a command line utility which creates archives, or libraries and 
it comes with Dev-C++ (MinGW). It is called "ar" (archiver). Actually, 
Dev-C++ uses this. It can create archives from object files. You first 
need to compile all sources to object files.
Type "ar --help" to get a list of comand line options. The most common 
options are "ar cru <libxxx.a> *.o"
In "*.o" * is a wildcard, so ar will get all .o object files and create 
the archive.

A quick'n'dirty way to create an archive (library) of all sources (.cpp 
and .c) in the current dir, type these 2 commands:

g++ -c *.cpp *.c        - (compile all .cpp and .c files to objects)
ar cru libxxx.a *.o     - (create the archive)

--
Greetings,
   Balázs