remove a depreciated file

configure.ac

@@ -420,6 +420,7 @@ AC_CONFIG_FILES([ \
 	simgear/serial/Makefile \
 	simgear/sky/Makefile \
 	simgear/sky/clouds3d/Makefile \
+	simgear/sky/sunsky/Makefile \
 	simgear/threads/Makefile \
 	simgear/timing/Makefile \
 	simgear/xgl/Makefile \

simgear/sg_zlib.h

@@ -1,92 +0,0 @@
-/**
- * \file sg_zlib.h
- * A file IO wrapper system that can select at compile time if the system
- * should use zlib calls or normal uncompressed calls for systems that have
- * problems building zlib.
- * Define AVOID_USING_ZLIB to use standard uncompressed calls.
- */
-
-/*
- * Written by Curtis Olson, started April 1998.
- *
- * Copyright (C) 1998  Curtis L. Olson  - curt@me.umn.edu
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA  02111-1307, USA.
- *
- * $Id$
- **************************************************************************/
-
-
-#ifndef _SG_ZLIB_H
-#define _SG_ZLIB_H
-
-
-#ifdef HAVE_CONFIG_H
-#ifdef FGFS
-#  include <config.h>
-#else
-#  include <simgear_config.h>
-#endif
-#endif
-
-
-#ifdef AVOID_USING_ZLIB
-
-  #include <stdio.h>
-
-  #define sgFile FILE *
-
-  /* sgFile sgopen(char *filename, const char *flags) */
-  #define sgopen(P, F)  (fopen((P), (F)))
-
-  /* int sgseek(sgFile *file, long offset, int whence) */
-  #define sgseek(F, O, W)  (fseek((F), (O), (W)))
-
-  /* sgread(sgFile file, void *buf, int size); */
-  #define sgread(F, B, S)  (fread((B), (S), 1, (F)))
-
-  /* int sggets(sgFile fd, char *buffer, int len) */
-  #define sggets(F, B, L)  (sgets((B), (L), (F)))
-
-  /* int sgclose(sgFile fd) */
-  #define sgclose(F)  (fclose((F)))
-#else
-
-  #include <zlib.h>
-
-  #define sgFile gzFile
-
-  /* sgFile sgopen(char *filename, const char *flags) */
-  #define sgopen(P, F)  (gzopen((P), (F)))
-
-  /* int sgseek(sgFile *file, long offset, int whence) */
-  #define sgseek(F, O, W)  (gzseek((F), (O), (W)))
-
-  /* sgread(sgFile file, void *buf, int size); */
-  #define sgread(F, B, S)  (gzread((F), (B), (S)))
-
-  /* int sggets(sgFile fd, char *buffer, int len) */
-  #define sggets(F, B, L)  (gzgets((F), (B), (L)))
-
-  /* int sgclose(sgFile fd) */
-  #define sgclose(F)  (gzclose((F)))
-
-#endif /* #ifdef AVOID_USING_ZLIB #else #endif */
-
-
-#endif /* _SG_ZLIB_H */
-
-