--- /dev/null
+For your convenience and allowed by zlib's license terms:
+http://www.gzip.org/zlib/zlib_license.html a copy of the zlib source
+is bundled with SimGear. You must have zlib installed before you can
+build SimGear.
+
+- Most linux distributions have a zlib package. For linux
+ developers, we recommend ysou install your distributions package
+ rather than building from source.
+
+- Cygwin installs zlib automatically.
+
+- For developers on most other platforms, you will have to build
+ zlib from source and install it yourself. For your convenience a
+ tar ball of the zlib source is included with the simgear source
+ distribution. Untar the zlib source, and follow the included
+ build and installation instructions.
+
+Once zlib is installed you can return to configuring and building
+Simgear.
+
+We now send you to the official zlib README ...
+
+
+=============================================================================
+
+zlib 1.1.3 is a general purpose data compression library. All the code
+is thread safe. The data format used by the zlib library
+is described by RFCs (Request for Comments) 1950 to 1952 in the files
+ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
+format) and rfc1952.txt (gzip format). These documents are also available in
+other formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
+
+All functions of the compression library are documented in the file zlib.h
+(volunteer to write man pages welcome, contact jloup@gzip.org). A usage
+example of the library is given in the file example.c which also tests that
+the library is working correctly. Another example is given in the file
+minigzip.c. The compression library itself is composed of all source files
+except example.c and minigzip.c.
+
+To compile all files and run the test program, follow the instructions
+given at the top of Makefile. In short "make test; make install"
+should work for most machines. For Unix: "configure; make test; make install"
+For MSDOS, use one of the special makefiles such as Makefile.msc.
+For VMS, use Make_vms.com or descrip.mms.
+
+Questions about zlib should be sent to <zlib@quest.jpl.nasa.gov>, or to
+Gilles Vollant <info@winimage.com> for the Windows DLL version.
+The zlib home page is http://www.cdrom.com/pub/infozip/zlib/
+The official zlib ftp site is ftp://ftp.cdrom.com/pub/infozip/zlib/
+Before reporting a problem, please check those sites to verify that
+you have the latest version of zlib; otherwise get the latest version and
+check whether the problem still exists or not.
+
+Mark Nelson <markn@tiny.com> wrote an article about zlib for the Jan. 1997
+issue of Dr. Dobb's Journal; a copy of the article is available in
+http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm
+
+The changes made in version 1.1.3 are documented in the file ChangeLog.
+The main changes since 1.1.2 are:
+
+- fix "an inflate input buffer bug that shows up on rare but persistent
+ occasions" (Mark)
+- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
+- fix gzseek(..., SEEK_SET) in write mode
+- fix crc check after a gzeek (Frank Faubert)
+- fix miniunzip when the last entry in a zip file is itself a zip file
+ (J Lillge)
+- add contrib/asm586 and contrib/asm686 (Brian Raiter)
+ See http://www.muppetlabs.com/~breadbox/software/assembly.html
+- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
+- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
+- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
+- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
+- added a FAQ file
+
+plus many changes for portability.
+
+Unsupported third party contributions are provided in directory "contrib".
+
+A Java implementation of zlib is available in the Java Development Kit 1.1
+http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html
+See the zlib home page http://www.cdrom.com/pub/infozip/zlib/ for details.
+
+A Perl interface to zlib written by Paul Marquess <pmarquess@bfsec.bt.co.uk>
+is in the CPAN (Comprehensive Perl Archive Network) sites, such as:
+ftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-module/Compress/Compress-Zlib*
+
+A Python interface to zlib written by A.M. Kuchling <amk@magnet.com>
+is available in Python 1.5 and later versions, see
+http://www.python.org/doc/lib/module-zlib.html
+
+A zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com>
+is availlable at http://www.westend.com/~kupries/doc/trf/man/man.html
+
+An experimental package to read and write files in .zip format,
+written on top of zlib by Gilles Vollant <info@winimage.com>, is
+available at http://www.winimage.com/zLibDll/unzip.html
+and also in the contrib/minizip directory of zlib.
+
+
+Notes for some targets:
+
+- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc
+ and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL
+ The zlib DLL support was initially done by Alessandro Iacopetti and is
+ now maintained by Gilles Vollant <info@winimage.com>. Check the zlib DLL
+ home page at http://www.winimage.com/zLibDll
+
+ From Visual Basic, you can call the DLL functions which do not take
+ a structure as argument: compress, uncompress and all gz* functions.
+ See contrib/visual-basic.txt for more information, or get
+ http://www.tcfb.com/dowseware/cmp-z-it.zip
+
+- For 64-bit Irix, deflate.c must be compiled without any optimization.
+ With -O, one libpng test fails. The test works in 32 bit mode (with
+ the -n32 compiler flag). The compiler bug has been reported to SGI.
+
+- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1
+ it works when compiled with cc.
+
+- on Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1
+ is necessary to get gzprintf working correctly. This is done by configure.
+
+- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works
+ with other compilers. Use "make test" to check your compiler.
+
+- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers.
+
+- For Turbo C the small model is supported only with reduced performance to
+ avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
+
+- For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html
+ Per Harald Myrvang <perm@stud.cs.uit.no>
+
+
+Acknowledgments:
+
+ The deflate format used by zlib was defined by Phil Katz. The deflate
+ and zlib specifications were written by L. Peter Deutsch. Thanks to all the
+ people who reported problems and suggested various improvements in zlib;
+ they are too numerous to cite here.
+
+Copyright notice:
+
+ (C) 1995-1998 Jean-loup Gailly and Mark Adler
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+
+ Jean-loup Gailly Mark Adler
+ jloup@gzip.org madler@alumni.caltech.edu
+
+If you use the zlib library in a product, we would appreciate *not*
+receiving lengthy legal documents to sign. The sources are provided
+for free but without warranty of any kind. The library has been
+entirely written by Jean-loup Gailly and Mark Adler; it does not
+include third-party code.
+
+If you redistribute modified sources, we would appreciate that you include
+in the file ChangeLog history information documenting your changes.
AC_DEFINE(FG_NDEBUG)
fi
-dnl specify if we are building with "checker"
+dnl specify if we are building with "electric fence"
AC_ARG_WITH(efence, [ --with-efence Specify if we are building with "electric-fence"])
if test "x$with_efence" = "xyes" ; then
dnl Check for MS Windows environment
AC_CHECK_HEADER(windows.h)
-if test "$HOSTTYPE" != "macintosh" ; then
+if test "x$HOSTTYPE" != "xmacintosh" ; then
dnl extra library and include directories
EXTRA_DIRS="/usr/local /usr/local/plib /usr/X11R6"
AM_CONDITIONAL(ENABLE_UNIX_SERIAL, true)
dnl X11 might be installed on Mac OS X, don't want to use it if it is.
-if test "$HOSTTYPE" != "macintosh" ; then
+if test "x$HOSTTYPE" != "xmacintosh" ; then
dnl Check for X11 (fancy)
AC_PATH_XTRA
fi
AC_CHECK_LIB(socket, socket)
dnl X11 might be installed, but we don't want to use it for OSX -dw-
-if test "$HOSTTYPE" != "macintosh" ; then
+if test "x$HOSTTYPE" != "xmacintosh" ; then
AC_CHECK_LIB(X11, XCreateWindow)
AC_CHECK_LIB(Xext, XShmCreateImage)
AC_CHECK_LIB(Xi, XGetExtensionVersion)
dnl check for OpenGL related libraries
-if test "$HOSTTYPE" = "macintosh" ; then
+if test "x$HOSTTYPE" = "xmacintosh" ; then
dnl Macintosh OSX
LIBS="$LIBS -framework OpenGL -framework GLUT"
elif test "x$ac_cv_header_windows_h" != "xyes" ; then
- dnl Reasonable stuff for non-windoze variants ... :-)
+ dnl Reasonable stuff for X-Windows based machines
AC_CHECK_LIB(GLcore, glNewList)
if test "x$ac_cv_lib_GLcore_glNewList" = "xno" ; then
AC_CHECK_LIB(glut, glutGameModeString)
LIBS="$save_LIBS"
else
- dnl Win32 is a little wierd because it has to try to handle the various
- dnl winbloze-isms. We'll just do this manually for now.
+ dnl Win32 libs
echo Win32 specific hacks...
AC_DEFINE(WIN32)
exit
fi
-# dnl Check for system installed gdbm
-# AC_CHECK_HEADER(gdbm.h)
-# if test "x$ac_cv_header_gdbm_h" = "xyes"; then
-# AC_DEFINE( HAVE_GDBM )
-# else
-# echo "no gdbm found, configuring and building."
-# fi
-# AM_CONDITIONAL(HAVE_GDBM, test "x$ac_cv_header_gdbm_h" = "xyes" )
-
dnl Check for system installed metakit
AC_CHECK_HEADER(mk4.h)
if test "x$ac_cv_header_mk4_h" != "xyes"; then
- echo "no metakit found, configuring and building."
- # Run configure in the metakit subdir
- AC_CONFIG_SUBDIRS( simgear/metakit/unix )
+ echo "Metakit not found, you will need to install this first."
+ echo "Please read the README.metakit for more information."
+ exit
fi
-AM_CONDITIONAL(HAVE_METAKIT, test "x$ac_cv_header_mk4_h" = "xyes" )
dnl Specify if we want logging (testing build) or not (release build)
dnl Check for system installed zlib
AC_CHECK_HEADER(zlib.h)
-if test "x$ac_cv_header_zlib_h" = "xyes"; then
- AC_DEFINE( HAVE_ZLIB )
-else
- echo "no zlib found, building."
+if test "x$ac_cv_header_zlib_h" != "xyes"; then
+ echo "zlib not found, you will need to install this first."
+ echo "Please read the README.zlib for more information."
+ exit
fi
-AM_CONDITIONAL(HAVE_ZLIB, test "x$ac_cv_header_zlib_h" = "xyes" )
dnl Checks for header files.
AC_HEADER_STDC
simgear/timing/Makefile \
simgear/xgl/Makefile \
simgear/xml/Makefile \
- simgear/zlib/Makefile \
)
-AC_OUTPUT_COMMANDS([
-# if test "x$ac_cv_header_windows_h" = "xyes" ; then
-# cp simgear/gdbm/autoconf.h.cygwin32 simgear/gdbm/autoconf.h
-# fi
-])
+# AC_OUTPUT_COMMANDS([])
echo ""
echo "Configure Summary"
echo -n "Automake version: ($AUTO_MAKE_VERSION) "
automake --version | head -1
-if test "x$ac_cv_header_mk4_h" != "xyes"; then
- echo "Building metakit"
-fi
-
-if test "x$ac_cv_header_zlib_h" != "xyes"; then
- echo "Building zlib"
-fi
-
if test "x$ac_cv_lib_pthread_pthread_exit" = "xyes" -a "x$ac_cv_header_pthread_h" = "xyes"; then
echo "Threads: pthread lib found."
else