Remove support for compiling with Z_SOLO.

Make compiling without gzip file operation support the default
 (define WITH_GZFILEOP or use --zlib-compat to enable them).
Add initial support for compiling in a zlib-compatible mode, this currently only
 enables gzip file operations and sets the ZLIB_COMPAT flag.

Conflicts:
	test/minigzip.c

1 files changed, 0 insertions, 8 deletions

diff --git a/infback.c b/infback.c
index 922eeeb..c8eee5e 100644
--- a/infback.c
+++ b/infback.c
@@ -42,19 +42,11 @@ int stream_size;
         return Z_STREAM_ERROR;
     strm->msg = Z_NULL;                 /* in case we return an error */
     if (strm->zalloc == (alloc_func)0) {
-#ifdef Z_SOLO
-        return Z_STREAM_ERROR;
-#else
         strm->zalloc = zcalloc;
         strm->opaque = (void *)0;
-#endif
     }
     if (strm->zfree == (free_func)0)
-#ifdef Z_SOLO
-        return Z_STREAM_ERROR;
-#else
     strm->zfree = zcfree;
-#endif
     state = (struct inflate_state *)ZALLOC(strm, 1,
                                                sizeof(struct inflate_state));
     if (state == Z_NULL) return Z_MEM_ERROR;