Forcing Z_CONST resulted in an issue when compiling Firefox. Now
if someone wants to compile zlib as C++ code (which it isn't), now
they will need to #define Z_CONST themselves.
# endif
#endif
-#if ( defined(ZLIB_CONST) || defined(__cplusplus) ) && !defined(z_const)
+#if defined(ZLIB_CONST) && !defined(z_const)
# define z_const const
#else
# define z_const
# endif
#endif
-#if ( defined(ZLIB_CONST) || defined(__cplusplus) ) && !defined(z_const)
+#if defined(ZLIB_CONST) && !defined(z_const)
# define z_const const
#else
# define z_const
# endif
#endif
-#if ( defined(ZLIB_CONST) || defined(__cplusplus) ) && !defined(z_const)
+#if defined(ZLIB_CONST) && !defined(z_const)
# define z_const const
#else
# define z_const