| Readme: | # libgargp for MorphOS
Version : 1.0
Date : 2025-10-11
Author : Digitally
# Description
libargp is a GNU argument parsing library ported to MorphOS with full
-noixemul support. This allows MorphOS developers to use the powerful
argp API for command-line argument parsing.
# Features
- Full argp-standalone 1.3 functionality
- Compiled with -noixemul for native compatibility
- Compatible with SDL2 and other native MorphOD libraries
- Automatic --help and --version generation
- Clean argument parsing with minimal code
# Installation
1. Copy libargp.a to gg/lib/
2. Copy argp.h to gg/include
# Usage
Include argp.h in your program:
#include <argp.h>
Compile with -largp and -noixemul
gcc -o myprogram myprogram.c -noixemul -largp
# Example
See example.c for a complete working example
# Technical details
- mempcpy() implementation (GNU extension)
- getpid() implementation using MorphOS Task
- struct group renamed argp_group to avoid conflits
- all standard string functions (memset, memmove, strlen, ..)
# Requirements
- MorphOS 3.19 or later
- GCC Compiler
- -noixemul flag required for compilation
# Licence
This is based on argp-standalone 1.3, which is derived from glibc
Licensed under LGPL 2.1 or later
# Credits
- Original argp from GNU C Library (glibc)
- argp-standalone by Niels M�ller
- MorphOS port patches by Digitally
# Contact
digitallytechno@proton.me
### Version 1.0 (2025-10-11)
- Initial MorphOS port
- Full -noixemul support
- All GNU extensions implemented
# Example
/*
* Simple example of using argp on MorphOS
* Compile with gcc -o example example.c -noixemul -largp
*/
#include <argp.h>
#include <stdio.h>
#include <stdlib.h>
const char *argp_program_version = "example 1.0";
const char *argp_program_bug_address = "<your@email.com>";
static char doc[] = "Example program using argp on MorphOS";
static char args_doc[] = "[FILE]";
static struct argp_option options[] =
{
{ "verbose", 'v', 0, 0, "Produce verbose output" },
{ "quiet", 'q', 0, 0, "Don't produce any output" },
{ "output", 'o', FILE, 0, "Output to FILE instead of standard output" },
{ 0 }
}
struct arguments
{
char *input_file;
char *output_file;
int verbose;
int quiet;
}
static error_t parseopt(int key, char *arg, struct argp_state *state)
{
struct arguments *arguments = state->input;
switch(key)
{
case 'v':
arguments->verbose = 1;
break;
case 'q':
arguments->quiet = 1;
break;
case 'o':
arguments->output_file = arg;
break;
case ARGP_KEY_ARG:
if(state->arg_num >= 1) argp_usage(state);
arguments->input_file = arg;
break;
case ARGP_KEY_END:
if(state->arg_num < 1) argp_usage(state);
break;
default:
return(ARGP_ERR_UNKNOWN);
}
return(0);
}
static struct argp argp = { options, parse_opt, args_doc, doc };
int main(int argc, char **argv)
{
struct arguments arguments;
arguments.input_file = NULL;
arguments.output_file = "-";
arguments.verbose = 0;
arguments.quiet = 0;
argp_parse(&argp, argc, argv, 0, 0, &arguments);
if(!arguments.quiet)
{
printf("input_file: %s\n", arguments.input_file);
printf("output_file: %s\n", arguments.output_file);
if(arguments.verbose) printf("Verbose mode enabled\n");
}
return(0);
}
/* makefile */
CC = gcc
CFLAGS = -noixemul -O2 -Wall
LIBS = -largp
example: example.c
$(CC) $(CFLAGS) -o example example.c $(LIBS)
clean:
rm -f example
/* test example */
example --help
######## REMEMBER TO ALWAYS WITH -noixemul FLAG ##################
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Ambient (148)
libargp-1.0.lha