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configure.ac @ 7187

Last change on this file since 7187 was 7151, checked in by bensch, 19 years ago
orxonox/trunk: new and more improved WE make process
File size: 19.5 KB

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1
2	##########################################################################
3	# orxonox - the future of 3D-vertical-scrollers #
4	# #
5	# Copyright (C) 2004 orx #
6	# #
7	# This program is free software; you can redistribute it and/or modify #
8	# it under the terms of the GNU General Public License as published by #
9	# the Free Software Foundation; either version 2, or (at your option) #
10	# any later version. #
11	# #
12	# ### File Specific: #
13	# main-programmer: Benjamin Grauer #
14	# co-programmer: ... #
15	# #
16	# This is the main configuration File of autoconf. #
17	# Please edit this file only, if you exactly know what you are doing. #
18	# It is quite fragile, and compiling orxonox on different Platforms #
19	# is only guarantied, if build with the right config. #
20	# #
21	# be sure to visit us at http://www.orxonox.net #
22	##########################################################################
23
24	#########################
25	## AUTOCONF INIT PHASE ##
26	#########################
27	AC_PREREQ(2.59)
28	AC_INIT([orxonox], [0.3.3_alpha], [orxonox-dev at mail.datacore.ch])
29
30	## Detect the canonical host and target build environment.
31	AC_CANONICAL_BUILD
32	AC_CANONICAL_HOST
33	AC_CANONICAL_TARGET
34
35	AM_INIT_AUTOMAKE
36
37	AC_CONFIG_SRCDIR([./src])
38	AC_CONFIG_HEADER([config.h])
39
40	#########################
41	## Checks for programs ##
42	#########################
43	AC_PROG_CXX
44	AC_PROG_RANLIB
45	AC_HEADER_STDC
46
47	## THIS IS OUR DEFAULT-DATA-DIRECTORY
48
49	##################################
50	## CHECKING OPTIONAL ARGUMENTS ##
51	##################################
52	#----------------#
53	# Data-Directory #
54	#----------------#
55	DATA_DIR=$datadir
56	echo \$\{prefix\}
57	if test $DATA_DIR = \$\{prefix\}/share ; then
58	echo "not given"
59	DATA_DIR=/usr/share
60	else
61	echo "given: $DATA_DIR"
62	fi
63	AC_DEFINE_UNQUOTED([DATADIR], ["$DATA_DIR"],
64	[Define to the read-only architecture-independent
65	data directory.])
66
67	#-----------------#
68	# shared-lib-path #
69	#-----------------#
70	SHARED_LIB_PATH=no
71	AC_MSG_CHECKING([shared lib path])
72	AC_ARG_WITH([shared-lib-path],
73	AS_HELP_STRING(--with-shared-lib-path,Tells the executable, where to look for the shared libraries.),
74	SHARED_LIB_PATH=$withval)
75	if test x$SHARED_LIB_PATH != xno; then
76	echo "set to $SHARED_LIB_PATH"
77	else
78	echo "no"
79	fi
80
81
82	#-----------------#
83	# DEBUG-statement #
84	#-----------------#
85	DEBUG=no
86	AC_MSG_CHECKING([if DEBUG-mode should be enabled])
87	AC_ARG_ENABLE([debug],
88	AS_HELP_STRING(--enable-debug,compiles in debug mode. Lots of debug info about the game.),
89	DEBUG=$enableval)
90
91	if test x$DEBUG = xno; then
92	echo "no"
93	echo " -> Setting debuglevel to 4. (orxonox is still in Development. It really is needed."
94	DEBUG=4
95	elif test x$DEBUG = xyes; then
96	echo "yes"
97	echo " -> Setting debuglevel to 4. HARD DEBUG MODE!!."
98	DEBUG=4
99	else
100	if test x$DEBUG = x0 \|\| test x$DEBUG = x1 \|\| test x$DEBUG = x2 \|\| test x$DEBUG = x3 \|\| test x$DEBUG = x4 \|\| test x$DEBUG = x5 ; then
101	echo "yes: setting debuglevel to to $DEBUG"
102	else
103	echo "yes: invalid Value for Debug ($DEBUG). setting to 4(DEBUG)"
104	DEBUG=4
105	fi
106	fi
107	AC_DEFINE_UNQUOTED(DEBUG, $DEBUG, [in which debug mode we are])
108	AC_SUBST(DEBUG)
109
110	#---------------#
111	# Modular Debug #
112	#---------------#
113	MODULAR_DEBUG=yes
114	AC_MSG_CHECKING([if Modular-DEBUG-mode should be ebabled])
115	AC_ARG_ENABLE([modular-debug],
116	AS_HELP_STRING(--disable-modular-debug,compiles in modular-debug mode, that logs differently on the many modules of orxonox.),
117	MODULAR_DEBUG=$enableval)
118
119	if test x$MODULAR_DEBUG = xno; then
120	echo "no"
121	elif test x$MODULAR_DEBUG = xyes; then
122	echo "yes"
123	AC_DEFINE_UNQUOTED(MODULAR_DEBUG, 1, [if Modular-DUBUG mode is enabled])
124	fi
125
126	#--------------#
127	# GTK-disabled #
128	#--------------#
129	AC_MSG_CHECKING([if gtk should be enabled])
130	AC_ARG_ENABLE([gtk],
131	AS_HELP_STRING(--disable-gtk,Prevents GTK from being loaded), [def_gtk=no], [def_gtk=yes])
132	if test x$def_gtk = xyes; then
133	echo "yes"
134	fi
135	if test x$def_gtk = xno; then
136	echo "no"
137	fi
138
139	#------------------#
140	# libCurl-disabled #
141	#------------------#
142	AC_MSG_CHECKING([if libcURL should be enabled])
143	AC_ARG_ENABLE([curl],
144	AS_HELP_STRING(--disable-curl,Prevents libcURL from being loaded), [def_curl=no], [def_curl=yes])
145	if test x$def_curl = xyes; then
146	echo "yes"
147	fi
148	if test x$def_curl = xno; then
149	echo "no"
150	fi
151
152	#-------------------#
153	# SubProject-enable #
154	#-------------------#
155	def_sub_projects=no
156	AC_MSG_CHECKING([if the SubProjects should be built])
157	AC_ARG_WITH([sub-projects],
158	AS_HELP_STRING(--with-sub-projects,also builds the subProjects while make from srcdir), [def_sub_projects=yes])
159	if test x$def_sub_projects = xyes; then
160	echo "yes"
161	fi
162	if test x$def_sub_projects = xno; then
163	echo "no"
164	fi
165	AM_CONDITIONAL(SUB_PROJECTS, test x$def_sub_projects = xyes)
166
167	#-------------------#
168	# Profiling Enabled #
169	#-------------------#
170	def_profiling=no
171	AC_MSG_CHECKING([if Profiling should be enabled])
172	AC_ARG_ENABLE([profile],
173	AS_HELP_STRING(--enable-profile,builds orxonox with profiling support), [def_profiling=yes])
174	if test x$def_profiling = xyes; then
175	echo "yes"
176	CXXFLAGS="$CXXFLAGS -pg"
177	fi
178	if test x$def_profiling = xno; then
179	echo "no"
180	fi
181
182	#----------------#
183	# efence Enabled #
184	#----------------#
185	def_efence=no
186	AC_MSG_CHECKING([if efence should be enabled])
187	AC_ARG_ENABLE([efence],
188	AS_HELP_STRING(--enable-efence,builds orxonox with efence support), [def_efence=yes])
189	if test x$def_efence = xyes; then
190	echo "yes"
191	fi
192	if test x$def_efence = xno; then
193	echo "no"
194	fi
195
196	#----------------------#
197	# Documentation-enable #
198	#----------------------#
199	def_documentation=no
200	AC_MSG_CHECKING([if the Documentation should be build by default])
201	AC_ARG_ENABLE([documentation],
202	AS_HELP_STRING(--enable-documentation,also builds the sDocumentation while make from srcdir), [def_documentation=yes])
203	if test x$def_documentation = xyes; then
204	echo "yes"
205	fi
206	if test x$def_documentation = xno; then
207	echo "no"
208	fi
209	AM_CONDITIONAL(DOCUMENTATION, test x$def_documentation = xyes)
210
211
212
213	#---------------------------#
214	# WITH TARDIS (convenience) #
215	#---------------------------#
216	def_tardis=no
217	GTKPATH=""
218	AC_MSG_CHECKING([convenience flag for working at the taris in the ETH zurich])
219	AC_ARG_WITH([tardis],
220	AS_HELP_STRING(--with-tardis,sets all the necesary environment flags for linux-TARDIS boxes at the ETH Zurich), [def_tardis=yes])
221	if test x$def_tardis = xyes; then
222	ARCH=i686-debian-linux3.1
223	## GAMELIBS
224	PREFIX=/usr/pack/gamelibs-1.0-to
225	CPPFLAGS="${CPPFLAGS} -I${PREFIX}/include"
226	LDFLAGS="${LDFLAGS} -L$PREFIX/${ARCH}/lib -Wl,-rpath -Wl,${PREFIX}/${ARCH}/lib"
227	## GTK
228	GTKPREFIX=/usr/pack/gtk-2.8.3-mo
229	GTKPATH=${GTKPREFIX}/${ARCH}/bin
230	CPPFLAGS="${CPPFLAGS} -I${GTKPREFIX}/include"
231	LDFLAGS="${LDFLAGS} -L${GTKPREFIX}/${ARCH}/lib -Wl,-rpath -Wl,${GTKPREFIX}/${ARCH}/lib"
232	echo "yes"
233	fi
234	if test x$def_tardis = xno; then
235	echo "no"
236	fi
237
238	#######################
239	## PROGRAMM CHECKING ##
240	## 3. party Programs ##
241	#######################
242
243	#----------------------#
244	# checking for Doxygen #
245	#----------------------#
246	AC_PATH_PROG(DOXYGEN, doxygen)
247	AM_CONDITIONAL(DOXYGEN, test $DOXYGEN)
248
249	#--------------------#
250	# checking for gprof #
251	#--------------------#
252	AC_PATH_PROG(GPROF, gprof)
253
254	#-------------------------#
255	# checking for pkg-config #
256	#-------------------------#
257	if test x$def_gtk = xyes; then
258	if test x${GTKPATH} != x; then
259	AC_PATH_PROG([PKG_CONFIG], [pkg-config],[], $GTKPATH )
260	else
261	AC_PATH_PROG(PKG_CONFIG, pkg-config )
262	fi
263	fi
264
265
266	#########################
267	## CHECKING FOR SYSTEM ##
268	#########################
269	## here the system is checked, and openGL is included
270	## also checking for SDL on differen Systems
271
272	CPPFLAGS="$CPPFLAGS -g"
273
274
275	AC_MSG_CHECKING([for System])
276	## checking for openGL-environment and other sys-specific parameters
277	case "$target" in
278
279	###########
280	#---------#
281	# WINDOWS #
282	#---------#
283	###########
284	--mingw32*)
285	echo "mingw-WINDOWS detected"
286
287	CPPFLAGS="-I/usr/include -I/mingw/include $CPPFLAGS"
288
289	mingw="yes"
290	MSBITFIELDS="-mms-bitfields"
291	MWINDOWS="-mwindows"
292
293	#--------#
294	# MIN-GW #
295	#--------#
296	# checking for mingw32
297	AC_CHECK_LIB([mingw32], [main], FOUND_mingw32=yes)
298	if test x$FOUND_mingw32 = xyes; then
299	LIBS="$LIBS -lmingw32"
300	fi
301
302	#---------------#
303	# open-GL (win) #
304	#---------------#
305	# checking gl header
306	AC_CHECK_HEADERS(GL/gl.h ,,
307	[AC_MSG_ERROR([cannot find opengl headers])])
308	# checking for Windows openGl library
309	AC_CHECK_LIB([opengl32], [main], [FOUND_GL=yes; LIBS="$LIBS -lopengl32"])
310	if test x$FOUND_GL != xyes ; then
311	echo "------------------"
312	echo "opengl not found."
313	echo "please install the opengl package which can be found at http://www.opengl.org"
314	echo "------------------"
315	exit -1
316	fi
317
318	# cheking for GLU-header
319	AC_CHECK_HEADERS([GL/glu.h] ,,
320	[AC_MSG_ERROR([cannot find opengl headers]) ])
321
322	# checking for libGLU
323	AC_CHECK_LIB([glu32], [main], [FOUND_GLU=yes; LIBS="$LIBS -lGLU32"])
324	if test x$FOUND_GLU != xyes ; then
325	echo "------------------"
326	echo "GLU library not found."
327	echo "please install the GLU library, that should come with openGL, which can be found at http://www.opengl.org"
328	echo "------------------"
329	exit -1
330	fi
331
332	# checking glew header
333	AC_CHECK_HEADERS(GL/glew.h ,,
334	[AC_MSG_ERROR([cannot find opengl extension wrangler headers]) ])
335	# checking for Windows glew library
336	AC_CHECK_LIB([glew32], [main], [FOUND_GLEW=yes; LIBS="$LIBS -lglew32"])
337	if test x$FOUND_GLEW != xyes ; then
338	echo "------------------"
339	echo "opengl extension wrangler not found."
340	echo "please install the glew package which can be found at http://glew.sourceforge.net"
341	echo "------------------"
342	exit -1
343	fi
344
345	#--------#
346	# openAL #
347	#--------#
348	AX_CHECK_REQUIRED_HEADER_LIB([AL/al.h], [OpenAL32], [main],,, [http://www.openal.org])
349
350	#-----------#
351	# SDL(win) #
352	#-----------#
353	# checking for SDL-headers
354	AC_CHECK_HEADERS([SDL/SDL.h] ,,
355	[AC_MSG_ERROR([cannot find SDL headers]) ])
356
357	#checking for libSDL
358	AC_CHECK_LIB([sdlmain], [main], [FOUND_sdlmain=yes; LIBS="$LIBS -lsdlmain"])
359	if test x$FOUND_sdlmain != xyes ; then
360	echo "------------------"
361	echo "SDL library not found."
362	echo "please install the SDL library, which can be found at http://www.libsdl.org"
363	echo "------------------"
364	exit 1
365	fi
366	AC_CHECK_LIB([sdl], [main], [FOUND_SDL=yes; LIBS="$LIBS -lsdl"])
367	if test x$FOUND_SDL != xyes ; then
368	echo "------------------"
369	echo "SDL library not found."
370	echo "please install the SDL library, which can be found at http://www.libsdl.org"
371	echo "------------------"
372	exit -1
373	fi
374
375	;;
376
377	#########
378	#-------#
379	# LINUX #
380	#-------#
381	#########
382	--linux*)
383	echo "Linux detected"
384
385	Linux="yes"
386
387	##CPPFLAGS="-I/usr/include $CPPFLAGS"
388	##LDFLAGS="-L/usr/lib $LDFLAGS"
389	if test x$SHARED_LIB_PATH != xno; then
390	echo "setting new LDFLAGS with $SHARED_LIB_PATH"
391	LDFLAGS="-Wl,-rpath,$SHARED_LIB_PATH -L$SHARED_LIB_PATH $LDFLAGS"
392	fi
393
394	#--------#
395	# openGL #
396	#--------#
397	AX_CHECK_REQUIRED_HEADER_LIB([GL/gl.h], [GL], [main],,, [http://www.opengl.org])
398	AX_CHECK_REQUIRED_HEADER_LIB([GL/glu.h], [GLU], [main],,, [http://www.opengl.org])
399	AX_CHECK_REQUIRED_HEADER_LIB([GL/glew.h], [GLEW], [main],,, [http://glew.sourceforge.net])
400
401	#--------#
402	# openAL #
403	#--------#
404	AX_CHECK_REQUIRED_HEADER_LIB([AL/al.h], [openal], [main],,, [http://www.openal.org])
405
406	#-----#
407	# SDL #
408	#-----#
409	# checking for SDL
410	AC_MSG_CHECKING([for SDL-version])
411	SDL_VERSION=`sdl-config --version`
412	echo $SDL_VERSION
413	CPPFLAGS="$CPPFLAGS `sdl-config --cflags`"
414
415	AX_CHECK_REQUIRED_HEADER_LIB([SDL.h SDL/SDL.h], [SDL], [main],,, [http://www.libsdl.org])
416
417	;;
418
419	#############
420	#-----------#
421	# MAC -OS X #
422	#-----------#
423	#############
424	darwin)
425	echo "OS X detected"
426
427	osX="yes"
428
429	CPPFLAGS="-I/sw/include -I/sw/include $CPPFLAGS"
430	LDFLAGS="$LDFLAGS -L/sw/lib"
431	# checking gl header
432	AC_CHECK_HEADERS([OpenGL/gl.h] ,,
433	[AC_MSG_ERROR([cannot find opengl headers]) ])
434	# cheking for GLU-header
435	AC_CHECK_HEADERS([OpenGL/glu.h] ,,
436	[AC_MSG_ERROR([cannot find opengl headers]) ])
437
438	LIBS="$LIBS -framework OpenGL"
439
440
441
442	# checking for GLEW-headers
443	AC_CHECK_HEADERS([GL/glew.h] ,,
444	[AC_MSG_ERROR([cannot find glew headers]) ])
445	# checking for GLEW-lib
446	AC_CHECK_LIB([GLEW], [main], [FOUND_GLEW=yes; LIBS="$LIBS -lGLEW"])
447	if test x$FOUND_GLEW != xyes ; then
448	echo "------------------"
449	echo "glew not found."
450	echo "please install the glew package which can be found at http://glew.sourceforge.net"
451	echo "------------------"
452	exit -1
453	fi
454
455
456	AC_CHECK_HEADERS([OpenAL/al.h] ,,
457	[AC_MSG_ERROR([cannot find opengl headers]) ])
458	HAVE_OPENAL=yes
459	LIBS="$LIBS -framework OpenAL"
460
461
462	## SDL-check
463	SDL_CFLAGS=`sdl-config --cflags`
464	SDL_LIBS=`sdl-config --libs`
465	CXXFL\AGS="$CXXFLAGS $SDL_CFLAGS"
466	LIBS="$LIBS $SDL_LIBS"
467	AC_CHECK_HEADERS([SDL/SDL.h] ,,
468	[AC_MSG_ERROR([cannot find SDL headers]) ])
469	HAVE_SDL=yes
470	# LIBS="$LIBS -framework SDL"
471
472	# checking for SDL-headers
473	# AC_CHECK_HEADERS(SDL/SDL.h ,,
474	# [AC_MSG_ERROR([cannot find SDL headers]) ])
475
476	## checking for SDL
477	# SDL_VERSION=1.2.7
478	# AM_PATH_SDL($SDL_VERSION,
479	# :,
480	# AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!])
481	# )
482
483
484	;;
485
486	*)
487	;;
488	esac
489
490	AC_SUBST(MSBITFIELDS)
491
492	###################################
493	## CHECKING FOR HEADERS AND LIBS ##
494	###################################
495
496	#---------#
497	# SDL_ttf #
498	#---------#
499	AX_CHECK_REQUIRED_HEADER_LIB([SDL_ttf.h SDL/SDL_ttf.h], [SDL_ttf], [TTF_OpenFont],,, [http://www.libsdl.org/projects/SDL_ttf])
500	#-----------#
501	# SDL_Image #
502	#-----------#
503	AX_CHECK_REQUIRED_HEADER_LIB([SDL_image.h SDL/SDL_image.h], [SDL_image], [main],,, [http://www.libsdl.org/projects/SDL_image])
504	#---------#
505	# SDL_Net #
506	#---------#
507	AX_CHECK_REQUIRED_HEADER_LIB([SDL_net.h SDL/SDL_net.h], [SDL_net], [main],,, [http://www.libsdl.org/projects/SDL_net])
508
509	#--------#
510	# FFmpeg #
511	#--------#
512	# checking for FFmpeg-headers
513	AC_CHECK_HEADERS([avformat.h] ,,
514	[AC_CHECK_HEADERS([ffmpeg/avformat.h] ,,AC_MSG_ERROR([cannot find FFmpeg header.])]))
515	# checking for ffmpeg-lib
516	AC_CHECK_LIB([avformat], [main], [FOUND_avformat=yes; LIBS="$LIBS -lavformat"])
517	if test x$FOUND_avformat != xyes ; then
518	echo "------------------"
519	echo "avformat library not found."
520	echo "please install the FFmpeg library, which can be found at http://ffmpeg.sourceforge.net"
521	echo "------------------"
522	exit -1
523	fi
524	AC_CHECK_HEADERS([avcodec.h] ,,
525	[AC_CHECK_HEADERS([ffmpeg/avcodec.h] ,,AC_MSG_ERROR([cannot find FFmpeg header.])]))
526	AC_CHECK_LIB([avcodec], [main], [FOUND_avcodec=yes; LIBS="$LIBS -lavcodec"])
527	if test x$FOUND_avcodec != xyes ; then
528	echo "------------------"
529	echo "avcodec library not found."
530	echo "please install the FFmpeg library, which can be found at http://ffmpeg.sourceforge.net"
531	echo "------------------"
532	exit -1
533	fi
534	AC_CHECK_LIB([avutil], [main], [FOUND_avutil=yes; LIBS="$LIBS -lavutil"])
535	AC_CHECK_LIB([xvid], [main], [FOUND_xvid=yes; LIBS="$LIBS -lxvid"])
536	AC_CHECK_LIB([gcj], [main], [FOUND_gcj=yes; LIBS="$LIBS -lgcj"])
537	AC_CHECK_LIB([theora], [main], [FOUND_theora=yes; LIBS="$LIBS -ltheora"])
538	AC_CHECK_LIB([dts], [main], [FOUND_dts=yes; LIBS="$LIBS -ldts"])
539	AC_CHECK_LIB([gsm], [main], [FOUND_gsm=yes; LIBS="$LIBS -lgsm"])
540	AC_CHECK_LIB([dc1394_control], [main], [FOUND_dc1394_control=yes; LIBS="$LIBS -ldc1394_control"])
541	AC_CHECK_LIB([vorbisenc], [main], [FOUND_vorbisenc=yes; LIBS="$LIBS -lvorbisenc"])
542
543
544	#--------#
545	# vorbis #
546	#--------#
547	AX_CHECK_REQUIRED_HEADER_LIB([vorbis/vorbisfile.h], [vorbisfile], [main],,, [http://www.xiph.org/ogg/vorbis/index.html])
548	AX_CHECK_REQUIRED_HEADER_LIB([vorbis/codec.h], [vorbis], [main],,, [http://www.xiph.org/ogg/vorbis/index.html])
549
550	#-----#
551	# ogg #
552	#-----#
553	AX_CHECK_REQUIRED_HEADER_LIB([ogg/ogg.h], [ogg], [main],,, [http://www.xiph.org/ogg/vorbis/index.html])
554
555
556	#---------#
557	# libcURL #
558	#---------#
559	AX_CHECK_HEADER_LIB([curl/curl.h], [curl], [main], [
560	have_curl=yes
561	CURL_LIBS=`curl-config --libs`
562	CURLCFLAGS=`curl-config --cflags`
563	AC_DEFINE_UNQUOTED(HAVE_CURL, 1, [if we have CURL]) ]
564	,, [http://curl.haxx.se/])
565
566	AC_SUBST(CURL_LIBS)
567	AC_SUBST(CURL_CFLAGS)
568	AM_CONDITIONAL(HAVE_CURL, test "x$have_curl" = "xyes")
569
570	#--------#
571	# efence #
572	#--------#
573	if test x$def_efence = xyes ; then
574	AC_CHECK_LIB([efence], [main], [FOUND_efence=yes; LIBS="$LIBS -lefence"])
575	if test x$FOUND_efence != xyes ; then
576	echo "efence was requested, but is not installed!! going on"
577	fi
578
579	fi
580
581	#-----#
582	# GTK #
583	#-----#
584	if test x$def_gtk = xyes; then
585	#PKG_CHECK_MODULES(GTK2, gtk+-2.0 >= 2.0.3 gthread-2.0 >= 2.0.3, have_gtk2=yes, have_gtk2=no)
586	AC_MSG_CHECKING([for gtk2.0])
587	if `$PKG_CONFIG --exists gtk+-2.0`; then
588	echo "yes"
589	have_gtk2=yes
590	GTK2_LIBS=`$PKG_CONFIG --libs gtk+-2.0`
591	GTK2_CFLAGS=`$PKG_CONFIG --cflags gtk+-2.0`
592	AC_DEFINE_UNQUOTED(HAVE_GTK2, 1, [if we have GTK2])
593	if test $DEBUG -ge 3; then
594	echo "cflags: $GTK2_CFLAGS"
595	echo "libs: $GTK2_LIBS"
596	fi
597	else
598	echo "no"
599	fi
600
601	fi
602	AC_SUBST(GTK2_LIBS)
603	AC_SUBST(GTK2_CFLAGS)
604	AM_CONDITIONAL(HAVE_GTK2, test x$have_gtk2 = xyes)
605
606
607	# FIXME: Replace `main' with a function in `-lm':
608	AC_CHECK_LIB([m], [main])
609
610
611	# Checks for header files.
612	AC_HEADER_STDC
613	AC_CHECK_HEADERS([stdlib.h string.h])
614
615	# Checks for typedefs, structures, and compiler characteristics.
616	AC_HEADER_STDBOOL
617
618	# Checks for library functions.
619	AC_FUNC_MALLOC
620	AC_CHECK_FUNCS([bzero sqrt])
621
622	######################
623	## OUTPUT CONFIGURE ##
624	######################
625	AC_CONFIG_FILES([Makefile
626	src/Makefile
627	src/lib/Makefile
628	src/lib/math/Makefile
629	src/lib/graphics/Makefile
630	src/lib/graphics/importer/Makefile
631	src/lib/graphics/spatial_separation/Makefile
632	src/lib/sound/Makefile
633	src/lib/event/Makefile
634	src/lib/physics/Makefile
635	src/lib/particles/Makefile
636	src/lib/collision_detection/Makefile
637	src/lib/network/Makefile
638	src/lib/shell/Makefile
639	src/lib/gui/Makefile
640	src/lib/gui/gtk_gui/Makefile
641	src/lib/gui/gl_gui/Makefile
642	src/lib/parser/Makefile
643	src/lib/parser/tinyxml/Makefile
644	src/lib/parser/ini_parser/Makefile
645	src/util/Makefile
646	src/world_entities/Makefile
647	src/subprojects/Makefile
648	src/subprojects/testmain/Makefile
649	src/subprojects/importer/Makefile
650	src/subprojects/particles/Makefile
651	src/subprojects/collision_detection/Makefile
652	src/subprojects/network/Makefile
653	])
654
655	AC_OUTPUT

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