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#include <zlib.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
static bool check_version(const char *zlib_ver, const char *found_zlib) {
if (zlib_ver == found_zlib)
return true;
if (strcmp(zlib_ver, found_zlib) == 0)
return true;
#ifdef ZLIBNG_VERSION
const char *ptr = strstr(zlib_ver, found_zlib);
// If the needle isn't found or the needle isn't at the start, fail.
if (ptr == NULL || ptr != zlib_ver)
return false;
/* In zlib-ng, ZLIB_VERSION is of the form X.Y.Z.zlib-ng. This will move the
* pointer to the start of the suffix, .zlib-ng. We know that at this point
* that FOUND_ZLIB is the start of ZLIB_VERSION, so compare the rest.
*/
ptr += strlen(found_zlib);
if (strcmp(ptr, ".zlib-ng") == 0)
return true;
#endif
return false;
}
int main(void) {
void * something = deflate;
if (!check_version(ZLIB_VERSION, FOUND_ZLIB)) {
printf("Meson found '%s' but zlib is '%s'\n", FOUND_ZLIB, ZLIB_VERSION);
#ifdef ZLIBNG_VERSION
puts("Note that in the case of zlib-ng, a version suffix of .zlib-ng is expected");
#endif
return 2;
}
if(something != 0)
return 0;
printf("Couldn't find 'deflate'\n");
return 1;
}
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