--- zlib.h.orig
+++ zlib.h
@@ -1582,7 +1582,7 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF(
 #  define gzoffset gzoffset64
 #  define adler32_combine adler32_combine64
 #  define crc32_combine crc32_combine64
-#  ifdef _LARGEFILE64_SOURCE
+#  ifndef _LARGEFILE64_SOURCE
      ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
      ZEXTERN z_off_t ZEXPORT gzseek64 OF((gzFile, z_off_t, int));
      ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile));
--- Makefile.in.orig
+++ Makefile.in
@@ -133,11 +133,11 @@ minigzip64.o: minigzip.c zlib.h zconf.h
 
 .c.lo:
 	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) -DPIC -c -o objs/$*.o $<
+	$(CC) $(SFLAGS) $(CFLAGS) -DPIC -c -o objs/$*.o $<
 	-@mv objs/$*.o $@
 
 $(SHAREDLIBV): $(PIC_OBJS)
-	$(LDSHARED) $(SFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS)
+	$(LDSHARED) $(SFLAGS) $(CFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS)
 	rm -f $(SHAREDLIB) $(SHAREDLIBM)
 	ln -s $@ $(SHAREDLIB)
 	ln -s $@ $(SHAREDLIBM)