Executable

Ace Blackwell · 04-30-2008, 07:59 PM

All,

I have been trying to use KDevelop to compile and run a simple hello world program program with SVGALib. It hasn't worked, so I opted to use Kate and compile from the prompt. It compiled fine but the file it gave me "command not found"

So how does one make an executable file with gcc. After compiling do I have to link the file or do some sort of make install?

Thanks
Ace

jailbait · 04-30-2008, 08:26 PM

gcc creates object files whose names end in .o. You have to run the object files through a linker to create an executable file. Most people use make files to coordinate the object files being fed to the linker to create an executable file.

Here is a gcc HOWTO on compiling and linking a program.

http://www.faqs.org/docs/Linux-HOWTO/GCC-HOWTO.html

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Steve Stites

Wim Sturkenboom · 04-30-2008, 09:09 PM

For the compiling part:

Code:

gcc -Wall myfile.c -o myprogram

To run the resulting myprogram (note the dot slash before the name of the program).

Code:

wim@desktop1:~$ ./myprogram

Nylex · 05-01-2008, 01:55 AM

[QUOTE=Wim Sturkenboom;3138321]For the compiling part:

Code:

gcc -Wall myfile.c -o myprogram

Note that to link libraries, you'll need to use the "-l" flag (that's a lowercase L). You may also need to tell gcc where to find the headers and library files, using "-I" and "-L", respectively. This is only if those files are not in "standard" places.