Do not use htons/htonl in makefont.c, since we already have hton16/hton32

which do not require to initialise winsock on Windows. Addresses #48.

tools/makefont.c

@@ -30,6 +30,7 @@
 #include <pango/pango.h>
 #include <pango/pangoft2.h>
 
+#include "caca_stubs.h"
 #include "caca.h"
 
 /* Split our big strings into chunks of 480 characters, because it is
@@ -434,13 +435,13 @@ static int printf_unicode(struct glyph *g)
 
 static int printf_u32(char const *fmt, uint32_t i)
 {
-    uint32_t ni = htonl(i);
+    uint32_t ni = hton32(i);
     return printf_hex(fmt, (uint8_t *)&ni, 4);
 }
 
 static int printf_u16(char const *fmt, uint16_t i)
 {
-    uint16_t ni = htons(i);
+    uint16_t ni = hton16(i);
     return printf_hex(fmt, (uint8_t *)&ni, 2);
 }