From 4fe1affc6d0ef240c071e950f5127a482646c681 Mon Sep 17 00:00:00 2001
From: Hans Kristian Rosbach <hk-git@circlestorm.org>
Date: Fri, 11 Feb 2022 13:49:28 +0100
Subject: [PATCH] Remove zng_gzgetc_ function from zlib-ng native API. It
 exists in zlib for backwards compatibility, but has never been
 documented/advertised for use in zlib-ngs native API.

---
 gzread.c.in  | 2 ++
 zlib-ng.h.in | 1 -
 zlib-ng.map  | 1 -
 3 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gzread.c.in b/gzread.c.in
index 3e1dc1d1..f17a5f88 100644
--- a/gzread.c.in
+++ b/gzread.c.in
@@ -432,9 +432,11 @@ int Z_EXPORT PREFIX(gzgetc)(gzFile file) {
     return gz_read(state, buf, 1) < 1 ? -1 : buf[0];
 }
 
+#ifdef ZLIB_COMPAT
 int Z_EXPORT PREFIX(gzgetc_)(gzFile file) {
     return PREFIX(gzgetc)(file);
 }
+#endif
 
 /* -- see zlib.h -- */
 int Z_EXPORT PREFIX(gzungetc)(int c, gzFile file) {
diff --git a/zlib-ng.h.in b/zlib-ng.h.in
index c46f776a..38a5225f 100644
--- a/zlib-ng.h.in
+++ b/zlib-ng.h.in
@@ -1791,7 +1791,6 @@ struct gzFile_s {
     unsigned char *next;
     z_off64_t pos;
 };
-Z_EXTERN Z_EXPORT int32_t zng_gzgetc_(gzFile file);  /* backward compatibility */
 #  define @ZLIB_SYMBOL_PREFIX@zng_gzgetc(g) ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : (@ZLIB_SYMBOL_PREFIX@zng_gzgetc)(g))
 
 #endif /* WITH_GZFILEOP */
diff --git a/zlib-ng.map b/zlib-ng.map
index 5ac11473..aa29a54e 100644
--- a/zlib-ng.map
+++ b/zlib-ng.map
@@ -93,7 +93,6 @@ ZLIB_NG_GZ_2.0.0 {
     zng_gzfread;
     zng_gzfwrite;
     zng_gzgetc;
-    zng_gzgetc_;
     zng_gzgets;
     zng_gzoffset;
     zng_gzoffset64;
-- 
2.47.3