Warning, file /office/calligra/cmake/TestModernZlib.c was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 #include <string.h>
 #include <zlib.h>
 
 int version[3] = {0,0,0};
 
 static void decode(char *str)
 {
         int n;
         for (n = 0; n < 3 && str; n++) {
                 char *pnt = strchr(str, '.');
                 if (pnt) *pnt++ = '\0';
                 version[n] = atoi(str);
                 str = pnt;
         }
 }
 
 int main(void) {
         decode(strdup(zlibVersion()));
         return
            (version[0] < 1 ||
             (version[0] == 1 &&
              (version[1] < 1 ||
               (version[1] == 1 && version[2] < 4))));
 }