From: Nathan Moinvaziri <nathan@nathanm.com>
Date: Thu, 18 Mar 2021 04:19:18 +0000 (-0700)
Subject: Added preprocessor error guards to ensure proper library usage.
X-Git-Tag: 2.0.2~6
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc33b26ca5391eb6b2c952cd032920033be27a53;p=thirdparty%2Fzlib-ng.git

Added preprocessor error guards to ensure proper library usage.
---

diff --git a/zlib-ng.h b/zlib-ng.h
index 384e3e2e..b67f8c29 100644
--- a/zlib-ng.h
+++ b/zlib-ng.h
@@ -29,9 +29,17 @@
   (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
 */
 
+#ifdef ZLIB_H_
+#  error Include zlib-ng.h for zlib-ng API or zlib.h for zlib-compat API but not both
+#endif
+
 #include <stdint.h>
 #include "zconf-ng.h"
 
+#ifndef ZCONFNG_H
+#  error Missing zconf-ng.h add binary output directory to include directories
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/zlib.h b/zlib.h
index ce730630..a47809f8 100644
--- a/zlib.h
+++ b/zlib.h
@@ -30,10 +30,18 @@
   (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
 */
 
+#ifdef ZNGLIB_H_
+#  error Include zlib-ng.h for zlib-ng API or zlib.h for zlib-compat API but not both
+#endif
+
 #include <stdint.h>
 #include <stdarg.h>
 #include "zconf.h"
 
+#ifndef ZCONF_H
+#  error Missing zconf.h add binary output directory to include directories
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif