Simplified config.c

This commit is contained in:
Bert Münnich 2011-09-23 00:18:51 +02:00
parent 515e410451
commit 8e1d8a97d3
2 changed files with 19 additions and 27 deletions

View file

@ -1,4 +1,4 @@
VERSION = git-20110917
VERSION = git-20110923
CC = gcc
CFLAGS = -Wall -pedantic -O2

View file

@ -2,44 +2,36 @@
#define _FEATURE_CONFIG
#include <stdio.h>
#include <string.h>
#include "config.h"
#define QUOTE(m) #m
#define PUT_MACRO(m) \
printf("%s-D%s=%s", n++ ? " " : "", #m, QUOTE(m))
printf(" -D%s=%s", #m, QUOTE(m))
int n = 0;
inline void puts_if(const char *s, int c) {
if (c)
printf("%s%s", n++ ? " " : "", s);
}
inline void endl() {
if (n) {
printf("\n");
n = 0;
}
inline int puts_if(const char *s, int c) {
return c ? printf(" %s", s) : 0;
}
int main(int argc, char **argv) {
int i;
int i, n = 0;
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "-D")) {
PUT_MACRO(EXIF_SUPPORT);
PUT_MACRO(GIF_SUPPORT);
endl();
} else if (!strcmp(argv[i], "-l")) {
puts_if("-lexif", EXIF_SUPPORT);
puts_if("-lgif", GIF_SUPPORT);
endl();
} else {
switch (argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
case 'D':
n += PUT_MACRO(EXIF_SUPPORT);
n += PUT_MACRO(GIF_SUPPORT);
break;
case 'l':
n += puts_if("-lexif", EXIF_SUPPORT);
n += puts_if("-lgif", GIF_SUPPORT);
break;
default:
fprintf(stderr, "%s: invalid argument: %s\n", argv[0], argv[i]);
return 1;
}
}
if (n)
printf("\n");
return 0;
}