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source: rtems-graphics-toolkit/fltk-1.3.0/configure.in @ 9183239

Last change on this file since 9183239 was d280eda, checked in by Alexandru-Sever Horin <alex.sever.h@…>, on 08/20/12 at 16:50:43
Added freetype library to link list for fltk
Property mode set to `100644`
File size: 39.6 KB

Line
1	dnl -- sh --
2	dnl the "configure" script is made from this by running GNU "autoconf"
3	dnl
4	dnl "$Id: configure.in 8511 2011-03-06 16:54:58Z manolo $"
5	dnl
6	dnl Configuration script for the Fast Light Tool Kit (FLTK).
7	dnl
8	dnl Copyright 1998-2010 by Bill Spitzak and others.
9	dnl
10	dnl This library is free software; you can redistribute it and/or
11	dnl modify it under the terms of the GNU Library General Public
12	dnl License as published by the Free Software Foundation; either
13	dnl version 2 of the License, or (at your option) any later version.
14	dnl
15	dnl This library is distributed in the hope that it will be useful,
16	dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
17	dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18	dnl Library General Public License for more details.
19	dnl
20	dnl You should have received a copy of the GNU Library General Public
21	dnl License along with this library; if not, write to the Free Software
22	dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23	dnl USA.
24	dnl
25	dnl Please report all bugs and problems on the following page:
26	dnl
27	dnl http://www.fltk.org/str.php
28	dnl
29
30	dnl We need at least autoconf 2.50...
31	AC_PREREQ(2.50)
32
33	dnl Required file in package...
34	AC_INIT(src/Fl.cxx)
35
36	dnl So --with-archflags option is used during "checking size of long"
37	if test `uname` = Darwin; then
38	if test "x$with_archflags" != x ; then
39	CFLAGS="$CFLAGS $with_archflags"
40	fi
41	USEMMFILES="Yes"
42	else
43	USEMMFILES="No"
44	fi
45	AC_SUBST(USEMMFILES)
46
47	dnl FLTK library versions...
48	FL_MAJOR_VERSION=1
49	FL_MINOR_VERSION=3
50	FL_PATCH_VERSION=0
51	FL_API_VERSION=${FL_MAJOR_VERSION}.${FL_MINOR_VERSION}
52
53	AC_SUBST(FL_MAJOR_VERSION)
54	AC_SUBST(FL_MINOR_VERSION)
55	AC_SUBST(FL_PATCH_VERSION)
56	AC_SUBST(FL_API_VERSION)
57
58	dnl Get the operating system and version number...
59	uname=`uname`
60	uversion=`uname -r \| sed -e '1,$s/[[^0-9]]//g'`
61	if test "x$uname" = xIRIX64; then
62	uname="IRIX"
63	fi
64	if test "x$uname" = x; then
65	# Older MinGW doesn't provide any output when uname is run, even with "-s".
66	# Current MinGW (as of Jan. 2011) however does, so this is not necessary anymore...
67	uname="MINGW"
68	fi
69
70	dnl Do not automatically add "-g" to compiler options...
71	ARCHFLAGS="${ARCHFLAGS:=}"
72	CFLAGS="${CFLAGS:=}"
73	CPPFLAGS="${CPPFLAGS:=}"
74	CXXFLAGS="${CXXFLAGS:=}"
75	DSOFLAGS="${DSOFLAGS:=}"
76	LDFLAGS="${LDFLAGS:=}"
77	OPTIM="${OPTIM:=}"
78
79	AC_SUBST(ARCHFLAGS)
80	AC_SUBST(OPTIM)
81
82	dnl in case of cross-compiling mingw32 under linux we must change uname for Win32 GUI
83	dnl run ./configure --host=i686-pc-ming32 try use X11 without change uname
84	if test "x$cross_compiling" != xno ; then
85	case $host_alias in
86	mingw)
87	uname=MINGW
88	;;
89	esac
90	fi
91
92	dnl OS-specific pre-tests...
93	dnl uname_GUI equals $uname unless we target Cygwin in combination with X11.
94	uname_GUI=$uname
95	case $uname in
96	CYGWIN*)
97	# Handle Cygwin option first, before all other tests.
98	AC_ARG_ENABLE(cygwin, [ --enable-cygwin use the Cygwin libraries [(default=no)]])
99	AC_ARG_ENABLE(x11, [ --enable-x11 use Cygwin with X11 [(default=no)]])
100	if test x$enable_cygwin != xyes; then
101	# NOTE: We can't use ARCHFLAGS for this, since it does not work
102	# with some of the function tests - Cygwin uses a
103	# different C library...
104	CFLAGS="$CFLAGS -mno-cygwin"
105	CPPFLAGS="$CPPFLAGS -mno-cygwin"
106	CXXFLAGS="$CXXFLAGS -mno-cygwin"
107	LDFLAGS="$LDFLAGS -mno-cygwin"
108	DSOFLAGS="$DSOFLAGS -mno-cygwin"
109	else
110	# we target Cygwin in combination with X11
111	if test x$enable_x11 = xyes; then
112	uname_GUI="X11$uname"
113	fi
114	fi
115	;;
116	esac
117
118	dnl Define the libraries and link options we will need.
119	LINKFLTK="../lib/libfltk.a"
120	LINKFLTKFORMS="../lib/libfltk_forms.a"
121	LINKFLTKGL="../lib/libfltk_gl.a"
122	LINKFLTKIMG="../lib/libfltk_images.a"
123	GLDEMOS="gldemos"
124
125	LIBEXT=".a"
126	LIBNAME="../lib/libfltk.a"
127	FLLIBNAME="../lib/libfltk_forms.a"
128	GLLIBNAME="../lib/libfltk_gl.a"
129	IMGLIBNAME="../lib/libfltk_images.a"
130	CAIROLIBNAME="../lib/libfltk_cairo.a"
131
132	LIBBASENAME="libfltk.a"
133	FLLIBBASENAME="libfltk_forms.a"
134	GLLIBBASENAME="libfltk_gl.a"
135	IMGLIBBASENAME="libfltk_images.a"
136	CAIROLIBBASENAME="libfltk_cairo.a"
137
138	dnl Check for Cairo library unless disabled...
139	CAIRODIR=""
140	CAIROFLAGS=""
141	LINKFLTKCAIRO=""
142	FLTKCAIROOPTION=""
143	CAIROLIBS=""
144
145	AC_ARG_ENABLE(cairoext,[ --enable-cairoext use fltk code instrumentation for cairo extended use (default=no)])
146	AC_ARG_ENABLE(cairo,[ --enable-cairo use lib Cairo (default=no)])
147
148	if test x$enable_cairoext = xyes; then
149	AC_DEFINE(FLTK_USE_CAIRO)
150	AC_DEFINE(FLTK_HAVE_CAIRO)
151	dnl FIXME This part should be fixed so configure do not depend on
152	dnl we do not rely on pkg-config .
153	CAIRODIR="cairo"
154	CAIROFLAGS="`pkg-config --cflags cairo`"
155	CAIROLIBS="-lcairo -lpixman-1"
156	CXXFLAGS="$CAIROFLAGS $CXXFLAGS"
157	LINKFLTKCAIRO="../lib/libfltk_cairo.a"
158	FLTKCAIROOPTION="-L ../cairo -lfltk_cairo$SHAREDSUFFIX"
159	LIBS="$CAIROLIBS $LIBS"
160	dnl $LINKFLTKCAIRO
161	LINKFLTK+=" $LINKFLTKCAIRO"
162	else
163	if test x$enable_cairo = xyes; then
164	AC_DEFINE(FLTK_HAVE_CAIRO)
165	dnl FIXME This part should be fixed so configure do not depend on
166	dnl we do not rely on pkg-config .
167	CAIRODIR="cairo"
168	CAIROFLAGS="`pkg-config --cflags cairo`"
169	CAIROLIBS="-lcairo -lpixman-1"
170	CXXFLAGS="$CAIROFLAGS $CXXFLAGS"
171	LINKFLTKCAIRO="../lib/libfltk_cairo.a"
172	FLTKCAIROOPTION="-L ../cairo -lfltk_cairo$SHAREDSUFFIX"
173	fi
174	fi
175
176	AC_SUBST(CAIRODIR)
177	AC_SUBST(CAIROFLAGS)
178	AC_SUBST(CAIROLIBS)
179	AC_SUBST(LINKFLTKCAIRO)
180	AC_SUBST(FLTKCAIROOPTION)
181
182
183	AC_SUBST(FLLIBNAME)
184	AC_SUBST(GLDEMOS)
185	AC_SUBST(GLLIBNAME)
186	AC_SUBST(IMGLIBNAME)
187	AC_SUBST(CAIROLIBNAME)
188	AC_SUBST(LIBEXT)
189	AC_SUBST(LIBNAME)
190	AC_SUBST(LINKFLTK)
191	AC_SUBST(LINKFLTKFORMS)
192	AC_SUBST(LINKFLTKGL)
193	AC_SUBST(LINKFLTKIMG)
194
195	AC_SUBST(LIBBASENAME)
196	AC_SUBST(FLLIBBASENAME)
197	AC_SUBST(GLLIBBASENAME)
198	AC_SUBST(IMGLIBBASENAME)
199	AC_SUBST(CAIROLIBBASENAME)
200
201	dnl Handle compile-time options...
202	AC_ARG_ENABLE(debug, [ --enable-debug turn on debugging [default=no]])
203	if test x$enable_debug = xyes; then
204	DEBUGFLAG="-g "
205	else
206	DEBUGFLAG=""
207	fi
208
209	AC_ARG_ENABLE(cp936, [ --enable-cp936 turn on CP936 [default=no]])
210	if test x$enable_cp936 = xyes; then
211	CFLAGS="$CFLAGS -DCP936"
212	fi
213
214
215	AC_ARG_ENABLE(gl, [ --enable-gl turn on OpenGL support [default=yes]])
216
217	AC_ARG_ENABLE(shared, [ --enable-shared turn on shared libraries [default=no]])
218	if test x$enable_shared = xyes; then
219	PICFLAG=1
220	SHAREDSUFFIX=""
221	FLUID="fluid-shared"
222
223	case $uname in
224	Darwin*)
225	DSONAME="libfltk.$FL_API_VERSION.dylib"
226	FLDSONAME="libfltk_forms.$FL_API_VERSION.dylib"
227	GLDSONAME="libfltk_gl.$FL_API_VERSION.dylib"
228	IMGDSONAME="libfltk_images.$FL_API_VERSION.dylib"
229	CAIRODSONAME="libfltk_cairo.$FL_API_VERSION.dylib"
230	DSOCOMMAND="\$(CXX) \$(ARCHFLAGS) \$(DSOFLAGS) -dynamiclib -lc -o"
231	;;
232
233	SunOS* \| UNIX_S*)
234	DSONAME="libfltk.so.$FL_API_VERSION"
235	FLDSONAME="libfltk_forms.so.$FL_API_VERSION"
236	GLDSONAME="libfltk_gl.so.$FL_API_VERSION"
237	IMGDSONAME="libfltk_images.so.$FL_API_VERSION"
238	CAIRODSONAME="libfltk_cairo.so.$FL_API_VERSION"
239	DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -h \$@ \$(LDLIBS) -G $DEBUGFLAG -o"
240	if test "x$libdir" != "x/usr/lib"; then
241	DSOLINK="-R$libdir"
242	fi
243	;;
244	HP-UX*)
245	DSONAME="libfltk.sl.$FL_API_VERSION"
246	FLDSONAME="libfltk_forms.sl.$FL_API_VERSION"
247	GLDSONAME="libfltk_gl.sl.$FL_API_VERSION"
248	IMGDSONAME="libfltk_images.sl.$FL_API_VERSION"
249	CAIRODSONAME="libfltk_cairo.sl.$FL_API_VERSION"
250	DSOCOMMAND="ld \$(DSOFLAGS) -b -z +h \$@ $DEBUGFLAG -o"
251	if test "x$libdir" != "x/usr/lib"; then
252	DSOLINK="-Wl,-rpath,$libdir"
253	fi
254	;;
255	IRIX*)
256	DSONAME="libfltk.so.$FL_API_VERSION"
257	FLDSONAME="libfltk_forms.so.$FL_API_VERSION"
258	GLDSONAME="libfltk_gl.so.$FL_API_VERSION"
259	IMGDSONAME="libfltk_images.so.$FL_API_VERSION"
260	CAIRODSONAME="libfltk_cairo.so.$FL_API_VERSION"
261	DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -Wl,-soname,\$@,-set_version,sgi1.1 \$(LDLIBS) -shared $DEBUGFLAG -o"
262	if test "x$libdir" != "x/usr/lib" -a "x$libdir" != "x/usr/lib32" -a "x$libdir" != "x/usr/lib64"; then
263	DSOLINK="-Wl,-rpath,$libdir"
264	fi
265	;;
266	OSF1*)
267	DSONAME="libfltk.so.$FL_API_VERSION"
268	FLDSONAME="libfltk_forms.so.$FL_API_VERSION"
269	GLDSONAME="libfltk_gl.so.$FL_API_VERSION"
270	IMGDSONAME="libfltk_images.so.$FL_API_VERSION"
271	CAIRODSONAME="libfltk_cairo.so.$FL_API_VERSION"
272	DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -Wl,-soname,\$@ \$(LDLIBS) -shared $DEBUGFLAG -o"
273	if test "x$libdir" != "x/usr/lib" -a "x$libdir" != "x/usr/lib32"; then
274	DSOLINK="-Wl,-rpath,$libdir"
275	fi
276	;;
277	Linux* \| BSD)
278	DSONAME="libfltk.so.$FL_API_VERSION"
279	FLDSONAME="libfltk_forms.so.$FL_API_VERSION"
280	GLDSONAME="libfltk_gl.so.$FL_API_VERSION"
281	IMGDSONAME="libfltk_images.so.$FL_API_VERSION"
282	CAIRODSONAME="libfltk_cairo.so.$FL_API_VERSION"
283	DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -Wl,-soname,\$@ \$(LDLIBS) -shared -fPIC $DEBUGFLAG -o"
284	if test "x$libdir" != "x/usr/lib" -a "x$libdir" != "x/usr/lib64"; then
285	DSOLINK="-Wl,-rpath,$libdir"
286	fi
287	;;
288	AIX*)
289	DSONAME="libfltk_s.a"
290	FLDSONAME="libfltk_forms_s.a"
291	GLDSONAME="libfltk_gl_s.a"
292	IMGDSONAME="libfltk_images_s.a"
293	CAIRODSONAME="libfltk_cairo_s.a"
294	DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -Wl,-bexpall,-bM:SRE,-bnoentry -o"
295	SHAREDSUFFIX="_s"
296	;;
297	CYGWIN* \| MINGW*)
298	PICFLAG=0
299	if test x$enable_cygwin != xyes; then
300	DSONAME="mgwfltknox-$FL_API_VERSION.dll"
301	FLDSONAME="mgwfltknox_forms-$FL_API_VERSION.dll"
302	GLDSONAME="mgwfltknox_gl-$FL_API_VERSION.dll"
303	IMGDSONAME="mgwfltknox_images-$FL_API_VERSION.dll"
304	CAIRODSONAME="mgwfltknox_cairo-$FL_API_VERSION.dll"
305	else
306	if test x$enable_x11 = xyes; then
307	DSONAME="cygfltk-$FL_API_VERSION.dll"
308	FLDSONAME="cygfltk_forms-$FL_API_VERSION.dll"
309	GLDSONAME="cygfltk_gl-$FL_API_VERSION.dll"
310	IMGDSONAME="cygfltk_images-$FL_API_VERSION.dll"
311	CAIRODSONAME="cygfltk_cairo-$FL_API_VERSION.dll"
312	else
313	DSONAME="cygfltknox-$FL_API_VERSION.dll"
314	FLDSONAME="cygfltknox_forms-$FL_API_VERSION.dll"
315	GLDSONAME="cygfltknox_gl-$FL_API_VERSION.dll"
316	IMGDSONAME="cygfltknox_images-$FL_API_VERSION.dll"
317	CAIRODSONAME="cygfltknox_cairo-$FL_API_VERSION.dll"
318	fi
319	fi
320	#-----------------------------------------------------------
321	# -Wl,--enable-runtime-pseudo-reloc: See str 1585
322	# appears to be necessary for older binutils versions < 2.16
323	#-----------------------------------------------------------
324	LDFLAGS="$LDFLAGS -Wl,--enable-auto-import -Wl,--enable-runtime-pseudo-reloc"
325	DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -shared \
326	-Wl,--whole-archive -Wl,--export-all-symbols \
327	-Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-import \
328	-Wl,--enable-auto-image-base -o \$@"
329	;;
330	*)
331	AC_MSG_WARN(Shared libraries may not be supported. Trying -shared option with compiler.)
332	DSONAME="libfltk.so.$FL_API_VERSION"
333	FLDSONAME="libfltk_forms.so.$FL_API_VERSION"
334	GLDSONAME="libfltk_gl.so.$FL_API_VERSION"
335	IMGDSONAME="libfltk_images.so.$FL_API_VERSION"
336	CAIRODSONAME="libfltk_cairo.so.$FL_API_VERSION"
337	DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -Wl,-soname,\$@ \$(LDLIBS) -shared $DEBUGFLAG -o"
338	;;
339	esac
340
341	LINKSHARED="-L../src $FLTKCAIROOPTION -lfltk_images$SHAREDSUFFIX -lfltk_forms$SHAREDSUFFIX -lfltk$SHAREDSUFFIX"
342	else
343	DSOCOMMAND="echo"
344	DSOLINK=""
345	DSONAME=""
346	FLDSONAME=""
347	GLDSONAME=""
348	IMGDSONAME=""
349	CAIRODSONAME=""
350	PICFLAG=0
351	SHAREDSUFFIX=""
352	FLUID="fluid"
353	LINKSHARED="$LINKFLTKCAIRO ../lib/libfltk_images.a ../lib/libfltk_forms.a ../lib/libfltk.a"
354	fi
355
356	AC_SUBST(DSOCOMMAND)
357	AC_SUBST(DSOFLAGS)
358	AC_SUBST(DSOLINK)
359	AC_SUBST(DSONAME)
360	AC_SUBST(FLDSONAME)
361	AC_SUBST(GLDSONAME)
362	AC_SUBST(IMGDSONAME)
363	AC_SUBST(CAIRODSONAME)
364	AC_SUBST(SHAREDSUFFIX)
365	AC_SUBST(LINKSHARED)
366	AC_SUBST(FLUID)
367
368	AC_ARG_ENABLE(threads, [ --enable-threads enable multi-threading support (default=yes)])
369
370	AC_ARG_WITH(optim, [ --with-optim="flags" use custom optimization flags])
371
372	AC_ARG_WITH(archflags, [ --with-archflags="flags"
373	use custom architecture flags
374	(possible Mac OS X values include -arch i386, -arch x86_64, -arch ppc)],
375	ARCHFLAGS="$withval")
376	case $uname in
377	Darwin*)
378	# QD is not supported anymore since 1.3
379	AC_DEFINE(__APPLE_QUARTZ__)
380	;;
381	esac
382
383	dnl Find commands...
384	AC_PROG_CC
385	AC_PROG_CXX
386	AC_PROG_INSTALL
387	case $uname in
388	OSF1*)
389	INSTALL="`pwd`/install-sh -c"
390	;;
391	esac
392	if test "$INSTALL" = "$ac_install_sh"; then
393	# Use full path to install-sh script...
394	INSTALL="`pwd`/install-sh -c"
395	fi
396	AC_PATH_PROG(NROFF,nroff)
397	if test "x$NROFF" = "x:"; then
398	# Try groff instead of nroff...
399	AC_PATH_PROG(GROFF,groff)
400	if test "x$GROFF" = "x:"; then
401	NROFF="echo"
402	else
403	NROFF="$GROFF -T ascii"
404	fi
405	fi
406	AC_PATH_PROG(HTMLDOC,htmldoc)
407	AC_PATH_PROG(DOXYDOC,doxygen)
408
409	dnl How do we make libraries?
410	AC_PROG_RANLIB
411	AC_PATH_TOOL(AR, ar)
412
413	if test "x$AR" = "x:"; then
414	AC_MSG_ERROR(Configure could not find the library archiver, aborting.)
415	fi
416
417	if test "x$RANLIB" != "x:"; then
418	LIBCOMMAND="$AR cr"
419	else
420	LIBCOMMAND="$AR crs"
421	fi
422
423	AC_SUBST(LIBCOMMAND)
424
425	dnl how to compile (Windows) resource files
426	dnl this will only be used to compile resources for Windows .exe files
427	AC_PATH_TOOL(RC,windres)
428
429	dnl Architecture checks...
430	if test "$uname" != Darwin; then
431	AC_C_BIGENDIAN
432	fi
433
434	AC_CHECK_SIZEOF(short, 2)
435	AC_CHECK_SIZEOF(int, 4)
436	AC_CHECK_SIZEOF(long, 4)
437	if test $ac_cv_sizeof_short -eq 2; then
438	AC_DEFINE(U16,unsigned short)
439	fi
440	if test $ac_cv_sizeof_int -eq 4; then
441	AC_DEFINE(U32,unsigned)
442	else
443	if test $ac_cv_sizeof_long -eq 4; then
444	AC_DEFINE(U32,unsigned long)
445	fi
446	fi
447	if test "$uname" != Darwin; then
448	if test $ac_cv_sizeof_int -eq 8; then
449	AC_DEFINE(U64,unsigned)
450	else
451	if test $ac_cv_sizeof_long -eq 8; then
452	AC_DEFINE(U64,unsigned long)
453	fi
454	fi
455	fi
456
457	dnl Does the C++ compiler support the bool type?
458	AC_CACHE_CHECK(whether the compiler recognizes bool as a built-in type,
459	ac_cv_cxx_bool,[
460	AC_LANG_SAVE
461	AC_LANG_CPLUSPLUS
462	AC_TRY_COMPILE([
463	int f(int x){return 1;}
464	int f(char x){return 1;}
465	int f(bool x){return 1;}
466	],[
467	bool b = true;
468	return f(b);
469	], ac_cv_cxx_bool=yes, ac_cv_cxx_bool=no)
470	AC_LANG_RESTORE
471	])
472
473	if test "$ac_cv_cxx_bool" != yes; then
474	CXXFLAGS="-Dbool=char -Dfalse=0 -Dtrue=1 $CXXFLAGS"
475	fi
476
477	dnl Standard headers and functions...
478	AC_HEADER_DIRENT
479	AC_CHECK_HEADER(sys/select.h,AC_DEFINE(HAVE_SYS_SELECT_H))
480	AC_CHECK_HEADER(sys/stdtypes.h,AC_DEFINE(HAVE_SYS_SELECT_H))
481
482	dnl Do we have the POSIX compatible scandir() prototype?
483	AC_CACHE_CHECK([whether we have the POSIX compatible scandir() prototype],
484	ac_cv_cxx_scandir_posix,[
485	AC_LANG_SAVE
486	AC_LANG_CPLUSPLUS
487	AC_TRY_COMPILE([
488	#include <dirent.h>
489	int func (const char d, dirent *list, void sort) {
490	int n = scandir(d, list, 0, (int()(const dirent , const dirent *))sort);
491	}
492	],[
493	], ac_cv_cxx_scandir_posix=yes, ac_cv_cxx_scandir_posix=no)
494	AC_LANG_RESTORE
495	])
496
497	dnl Define both HAVE_SCANDIR... macros, if the POSIX compatible function is
498	dnl available. Otherwise: check, whether any scandir prototype is available,
499	dnl but don't use it on SunOS and QNX because of an incompatibility in pre-Y2K
500	dnl SunOS scandir versions. We assume, though, that the POSIX compatible
501	dnl version on newer SunOS/Solaris versions works as expected.
502	if test "$ac_cv_cxx_scandir_posix" = yes; then
503	AC_DEFINE(HAVE_SCANDIR)
504	AC_DEFINE(HAVE_SCANDIR_POSIX)
505	else
506	AC_CHECK_FUNC(scandir,
507	if test "x$uname" = xSunOS -o "x$uname" = xQNX; then
508	AC_MSG_WARN(Not using $uname scandir emulation function.)
509	else
510	AC_DEFINE(HAVE_SCANDIR)
511	fi)
512	fi
513
514	AC_CHECK_FUNC(vsnprintf,[
515	case "$uname" in
516	HP-UX*)
517	if test "$uversion" = "1020"; then
518	AC_MSG_WARN(Not using built-in vsnprintf function because you are running HP-UX 10.20.)
519	else
520	AC_DEFINE(HAVE_VSNPRINTF)
521	fi
522	;;
523
524	OSF1*)
525	if test "$uversion" = "40"; then
526	AC_MSG_WARN(Not using built-in vsnprintf function because you are running Tru64 4.0.)
527	else
528	AC_DEFINE(HAVE_VSNPRINTF)
529	fi
530	;;
531
532	*)
533	AC_DEFINE(HAVE_VSNPRINTF)
534	;;
535	esac])
536	AC_CHECK_FUNC(snprintf,[
537	case "$uname" in
538	HP-UX*)
539	if test "$uversion" = "1020"; then
540	AC_MSG_WARN(Not using built-in snprintf function because you are running HP-UX 10.20.)
541	else
542	AC_DEFINE(HAVE_SNPRINTF)
543	fi
544	;;
545
546	OSF1*)
547	if test "$uversion" = "40"; then
548	AC_MSG_WARN(Not using built-in snprintf function because you are running Tru64 4.0.)
549	else
550	AC_DEFINE(HAVE_SNPRINTF)
551	fi
552	;;
553
554	*)
555	AC_DEFINE(HAVE_SNPRINTF)
556	;;
557	esac])
558	AC_CHECK_HEADER(strings.h, AC_DEFINE(HAVE_STRINGS_H))
559	AC_CHECK_FUNCS(strcasecmp strlcat strlcpy)
560
561	AC_CHECK_HEADER(locale.h, AC_DEFINE(HAVE_LOCALE_H))
562	AC_CHECK_FUNCS(localeconv)
563
564	dnl FLTK library uses math library functions...
565	AC_SEARCH_LIBS(pow, m)
566
567	dnl Check for largefile support...
568	AC_SYS_LARGEFILE
569
570	dnl Define largefile options as needed...
571	LARGEFILE=""
572	if test x$enable_largefile != xno; then
573	LARGEFILE="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE"
574
575	if test x$ac_cv_sys_large_files = x1; then
576	LARGEFILE="$LARGEFILE -D_LARGE_FILES"
577	fi
578
579	if test x$ac_cv_sys_file_offset_bits = x64; then
580	LARGEFILE="$LARGEFILE -D_FILE_OFFSET_BITS=64"
581	fi
582	fi
583	AC_SUBST(LARGEFILE)
584
585	dnl Check for "long long" support...
586	AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
587	[if test "$GCC" = yes; then
588	ac_cv_c_long_long=yes
589	else
590	AC_TRY_COMPILE(,[long long int i;],
591	ac_cv_c_long_long=yes,
592	ac_cv_c_long_long=no)
593	fi])
594
595	if test $ac_cv_c_long_long = yes; then
596	AC_DEFINE(HAVE_LONG_LONG)
597	fi
598
599	AC_CHECK_FUNC(strtoll, AC_DEFINE(HAVE_STRTOLL))
600
601	dnl Check for dlopen/dlsym...
602	AC_SEARCH_LIBS(dlsym, dl, AC_DEFINE(HAVE_DLSYM))
603	AC_CHECK_HEADER(dlfcn.h, AC_DEFINE(HAVE_DLFCN_H))
604
605	dnl Check for audio libraries...
606	AUDIOLIBS=""
607
608	case $uname in
609	CYGWIN* \| MINGW*)
610	dnl Cygwin environment...
611	AUDIOLIBS="-lwinmm"
612	;;
613
614	Darwin*)
615	AUDIOLIBS="-framework CoreAudio"
616	;;
617
618	*)
619	AC_CHECK_HEADER(alsa/asoundlib.h,
620	AC_DEFINE(HAVE_ALSA_ASOUNDLIB_H)
621	AUDIOLIBS="-lasound")
622	;;
623	esac
624
625	AC_SUBST(AUDIOLIBS)
626
627	dnl Check for image libraries...
628	SAVELIBS="$LIBS"
629	IMAGELIBS=""
630	STATICIMAGELIBS=""
631
632	AC_SUBST(IMAGELIBS)
633	AC_SUBST(STATICIMAGELIBS)
634
635	# Handle the JPEG lib linking mode (use fltk local or system lib)
636	# If --enable-(resp. --disable-)localjpeg parameter is not set by user
637	# Then we check the JPEG lib usability, with result in sysjpeglib_ok variable
638	AC_ARG_ENABLE(localjpeg, [ --enable-localjpeg use local JPEG library, default=auto])
639	# Check for System lib use if automatic mode or --disable-localjpeg is requested
640	sysjpeglib_ok=no
641	sysjpeginc_ok=no
642	if test x$enable_localjpeg != xyes; then
643	AC_CHECK_LIB(jpeg,jpeg_CreateCompress,
644	[AC_CHECK_HEADER(jpeglib.h,
645	sysjpeginc_ok=yes)
646	if test x$sysjpeginc_ok = xyes; then
647	sysjpeglib_ok=yes
648	fi])
649	fi
650	# Now set the jpeg lib and include flags according to the requested mode and availability
651	if test x$enable_localjpeg = xyes -o x$sysjpeglib_ok = xno; then
652	JPEGINC="-I../jpeg"
653	JPEG="jpeg"
654	IMAGELIBS="-lfltk_jpeg $IMAGELIBS"
655	STATICIMAGELIBS="\$libdir/libfltk_jpeg.a $STATICIMAGELIBS"
656	AC_DEFINE(HAVE_LIBJPEG)
657	#ac_cv_lib_jpeg_jpeg_CreateCompress=no # from ima: should not be necessary
658	# Finally, warn user if system lib was requested but not found
659	if test x$enable_localjpeg = xno; then
660	AC_MSG_WARN(Cannot find system jpeg lib or header: choosing the local lib mode.)
661	fi
662	else
663	JPEGINC=""
664	JPEG=""
665	IMAGELIBS="-ljpeg $IMAGELIBS"
666	STATICIMAGELIBS="-ljpeg $STATICIMAGELIBS"
667	AC_DEFINE(HAVE_LIBJPEG)
668	fi
669
670	# Handle the ZLIB lib linking mode (use fltk local or system lib)
671	# If --enable-(resp. --disable-)localzlib parameter is not set by user
672	# Then we check the ZLIB lib usability, with result in syszlib_ok variable
673	AC_ARG_ENABLE(localzlib, [ --enable-localzlib use local ZLIB library, default=auto])
674	# Check for System lib use if automatic mode or --disable-localzlib is requested
675	syszlib_ok=no
676	syszinc_ok=no
677	if test x$enable_localzlib != xyes; then
678	AC_CHECK_LIB(z,z_gzgets,
679	[AC_CHECK_HEADER(zlib.h,
680	syszinc_ok=yes)
681	if test x$syszinc_ok = xyes; then
682	syszlib_ok=yes
683	fi])
684	fi
685	# Now set the Z lib and include flags according to the requested mode and availability
686	if test x$enable_localzlib = xyes -o x$syszlib_ok = xno ; then
687	ZLIBINC="-I../zlib"
688	ZLIB="zlib"
689	LIBS="-lfltk_z $LIBS"
690	IMAGELIBS="-lfltk_z $IMAGELIBS"
691	STATICIMAGELIBS="\$libdir/libfltk_z.a $STATICIMAGELIBS"
692	AC_DEFINE(HAVE_LIBZ)
693	ac_cv_lib_z_gzgets=no # fc: is still necessary ?
694	# Finally, warn user if system lib was requested but not found
695	if test x$enable_localzlib = xno; then
696	AC_MSG_WARN(Cannot find system z lib or header: choosing the local lib mode.)
697	fi
698	else
699	ZLIBINC=""
700	ZLIB=""
701	LIBS="-lz $LIBS"
702	IMAGELIBS="-lz $IMAGELIBS"
703	STATICIMAGELIBS="-lz $STATICIMAGELIBS"
704	AC_DEFINE(HAVE_LIBZ)
705	fi
706
707	# Handle the PNG lib linking mode (use fltk local or system lib)
708	# If --enable-(resp. --disable-)localpng parameter is not set by user
709	# Then we check the png lib usability with result in syspng_lib variable
710	AC_ARG_ENABLE(localpng, [ --enable-localpng use local PNG library, default=auto])
711
712	# Now check if system lib is usable, we check Lib AND include availability with inc variant,
713	# but only, if the builtin lib is not requested
714	syspnglib_ok=no
715	syspnginc_ok=no
716	if test x$enable_localpng != xyes; then
717	AC_CHECK_LIB(png, png_read_info,
718	[AC_CHECK_HEADER(png.h,
719	AC_DEFINE(HAVE_PNG_H)
720	syspnginc_ok=yes)
721	AC_CHECK_HEADER(libpng/png.h,
722	AC_DEFINE(HAVE_LIBPNG_PNG_H)
723	syspnginc_ok=yes)
724	if test x$syspnginc_ok = xyes; then
725	syspnglib_ok=yes
726	fi])
727	fi
728
729	# The following is executed if the lib was not found usable or if local lib is required explicitly
730	if test x$enable_localpng = xyes -o x$syspnglib_ok = xno ; then
731	PNGINC="-I../png"
732	PNG="png"
733	IMAGELIBS="-lfltk_png $IMAGELIBS"
734	STATICIMAGELIBS="\$libdir/libfltk_png.a $STATICIMAGELIBS"
735	AC_DEFINE(HAVE_LIBPNG)
736	AC_DEFINE(HAVE_PNG_H)
737	AC_DEFINE(HAVE_PNG_GET_VALID)
738	AC_DEFINE(HAVE_PNG_SET_TRNS_TO_ALPHA)
739	# Finally, warn user if system lib was requested but not found
740	if test x$enable_localpng = xno; then
741	AC_MSG_WARN(Cannot find system png lib or header: choosing the local lib mode.)
742	fi
743	else
744	PNGINC=""
745	PNG=""
746	IMAGELIBS="-lpng $IMAGELIBS"
747	STATICIMAGELIBS="-lpng $STATICIMAGELIBS"
748	AC_DEFINE(HAVE_LIBPNG)
749	AC_CHECK_LIB(png,png_get_valid, AC_DEFINE(HAVE_PNG_GET_VALID))
750	AC_CHECK_LIB(png,png_set_tRNS_to_alpha, AC_DEFINE(HAVE_PNG_SET_TRNS_TO_ALPHA))
751	fi
752
753	AC_SUBST(JPEG)
754	AC_SUBST(JPEGINC)
755	AC_SUBST(PNG)
756	AC_SUBST(PNGINC)
757	AC_SUBST(ZLIB)
758	AC_SUBST(ZLIBINC)
759
760	dnl Restore original LIBS settings...
761	LIBS="$SAVELIBS"
762
763	dnl See if we need a .exe extension on executables...
764	AC_EXEEXT
765
766	dnl Check for pthreads for multi-threaded apps...
767	have_pthread=no
768	PTHREAD_FLAGS=""
769
770	dnl Test whether we want to check for pthreads. We must not do it on Windows
771	dnl unless we run under Cygwin with --enable-cygwin, since we always use
772	dnl native threads on Windows (even if libpthread is available)
773	check_pthread=yes
774	case $uname in
775	MINGW*)
776	check_pthread=no
777	;;
778	CYGWIN*)
779	if test "x$enable_cygwin" != xyes; then
780	check_pthread=no
781	fi
782	;;
783	*)
784	;;
785	esac
786
787	if test "x$enable_threads" != xno -a x$check_pthread = xyes; then
788	AC_CHECK_HEADER(pthread.h, AC_DEFINE(HAVE_PTHREAD_H))
789
790	if test x$ac_cv_header_pthread_h = xyes; then
791	dnl Check various threading options for the platforms we support
792	for flag in -lpthreads -lpthread -pthread; do
793	AC_MSG_CHECKING([for pthread_create using $flag])
794	SAVELIBS="$LIBS"
795	LIBS="$flag $LIBS"
796	AC_TRY_LINK([#include <pthread.h>],
797	[pthread_create(0, 0, 0, 0);],
798	have_pthread=yes,
799	LIBS="$SAVELIBS")
800	AC_MSG_RESULT([$have_pthread])
801
802	if test $have_pthread = yes; then
803	AC_DEFINE(HAVE_PTHREAD)
804	PTHREAD_FLAGS="-D_THREAD_SAFE -D_REENTRANT"
805
806	# Solaris requires -D_POSIX_PTHREAD_SEMANTICS to
807	# be POSIX-compliant... :(
808	if test $uname = SunOS; then
809	PTHREAD_FLAGS="$PTHREAD_FLAGS -D_POSIX_PTHREAD_SEMANTICS"
810	fi
811	break
812	fi
813	done
814	fi
815	fi
816
817	AC_SUBST(PTHREAD_FLAGS)
818
819	dnl Define OS-specific stuff...
820	HLINKS=
821	OSX_ONLY=:
822	THREADS=
823
824	AC_ARG_WITH(links, [ --with-links make header links for common misspellings (default=no)])
825
826	INSTALL_DESKTOP=""
827	UNINSTALL_DESKTOP=""
828
829	case $uname_GUI in
830	CYGWIN* \| MINGW*)
831	dnl Cygwin environment, using windows GDI ...
832	# Recent versions of Cygwin are seriously broken and the size
833	# checks don't work because the shell puts out \r\n instead of
834	# \n. Here we just force U32 to be defined to "unsigned"...
835	AC_DEFINE(U32,unsigned)
836	CFLAGS="-mwindows -DWIN32 -DUSE_OPENGL32 $CFLAGS"
837	CXXFLAGS="-mwindows -DWIN32 -DUSE_OPENGL32 $CXXFLAGS"
838	LDFLAGS="-mwindows $LDFLAGS"
839	DSOFLAGS="-mwindows $DSOFLAGS"
840	LIBS="$LIBS -lole32 -luuid -lcomctl32"
841	if test "x$with_optim" = x; then
842	dnl Avoid -Os optimization on Cygwin/MinGW
843	with_optim="-O3"
844	fi
845
846	if test x$enable_gl != xno; then
847	AC_CHECK_HEADER(GL/gl.h,
848	AC_DEFINE(HAVE_GL)
849	GLLIB="-lopengl32")
850	AC_CHECK_HEADER(GL/glu.h,
851	AC_DEFINE(HAVE_GL_GLU_H)
852	GLLIB="-lglu32 $GLLIB")
853	else
854	LINKFLTKGL=""
855	GLLIBNAME=""
856	GLDSONAME=""
857	GLDEMOS=""
858	fi
859
860	if test "x$enable_threads" != xno; then
861	if test x$have_pthread = xyes; then
862	AC_DEFINE(HAVE_PTHREAD)
863	fi
864	fi
865
866	THREADS="threads$EXEEXT"
867
868	# Don't make symlinks since Windows is not case sensitive.
869	if test "x$with_links" != xyes; then
870	HLINKS="#"
871	fi
872	;;
873
874	Darwin*)
875	# MacOS X uses Cocoa for graphics.
876	LIBS="$LIBS -framework Cocoa"
877
878	if test x$have_pthread = xyes; then
879	AC_DEFINE(HAVE_PTHREAD)
880	THREADS="threads$EXEEXT"
881	fi
882
883	if test x$enable_gl != xno; then
884	AC_DEFINE(HAVE_GL)
885	AC_DEFINE(HAVE_GL_GLU_H)
886	GLLIB="-framework AGL -framework OpenGL -framework ApplicationServices"
887	else
888	LINKFLTKGL=""
889	GLLIBNAME=""
890	GLDSONAME=""
891	GLDEMOS=""
892	fi
893
894	# Don't make symlinks because HFS+ is not case sensitive...
895	if test "x$with_links" != xyes; then
896	HLINKS="#"
897	fi
898
899	# Some steps are only done for OS X package management
900	OSX_ONLY=
901
902	# Install/Uninstall FLUID application
903	INSTALL_DESKTOP="install-osx"
904	UNINSTALL_DESKTOP="uninstall-osx"
905	;;
906
907	*)
908	# All others are UNIX/X11...
909	# This includes Cygwin target combined with X11
910	if test x$have_pthread = xyes; then
911	AC_DEFINE(HAVE_PTHREAD)
912	THREADS="threads$EXEEXT"
913	fi
914
915	dnl Check for X11...
916	AC_PATH_XTRA
917
918	if test x$no_x = xyes; then
919	AC_MSG_ERROR(Configure could not find required X11 libraries, aborting.)
920	fi
921
922	if test "x$X_PRE_LIBS" != x; then
923	AC_MSG_WARN(Ignoring libraries \"$X_PRE_LIBS\" requested by configure.)
924	fi
925
926	LIBS="$LIBS -lX11 -lnano-X -ltiff -lfreetype -lt1 $X_EXTRA_LIBS"
927	CFLAGS="$CFLAGS $X_CFLAGS"
928	CXXFLAGS="$CXXFLAGS $X_CFLAGS"
929	LDFLAGS="$X_LIBS $LDFLAGS"
930	DSOFLAGS="$X_LIBS $DSOFLAGS"
931	AC_DEFINE(USE_X11)
932	if test "x$x_includes" != x; then
933	ac_cpp="$ac_cpp -I$x_includes"
934	fi
935
936	dnl Check for OpenGL unless disabled...
937	GLLIB=
938
939	if test x$enable_gl != xno; then
940	AC_SEARCH_LIBS(dlopen, dl)
941	AC_CHECK_HEADER(GL/gl.h,
942	AC_CHECK_LIB(GL, glXMakeCurrent, AC_DEFINE(HAVE_GL) GLLIB="-lGL",
943	AC_CHECK_LIB(MesaGL,glXMakeCurrent, AC_DEFINE(HAVE_GL) GLLIB=" -lMesaGL",,
944	-lm),
945	-lm)
946	AC_CHECK_LIB(GL, glXGetProcAddressARB,
947	AC_DEFINE(HAVE_GLXGETPROCADDRESSARB),, -lm)
948	)
949	AC_CHECK_HEADER(GL/glu.h,
950	AC_DEFINE(HAVE_GL_GLU_H)
951	if test x$ac_cv_lib_GL_glXMakeCurrent = xyes; then
952	GLLIB="-lGLU $GLLIB"
953	fi
954	if test x$ac_cv_lib_MesaGL_glXMakeCurrent = xyes; then
955	GLLIB="-lMesaGLU $GLLIB"
956	fi
957	)
958
959	if test x$ac_cv_lib_GL_glXMakeCurrent != xyes -a x$ac_cv_lib_MesaGL_glXMakeCurrent != xyes; then
960	LINKFLTKGL=""
961	GLLIBNAME=""
962	GLDSONAME=""
963	GLDEMOS=""
964	fi
965	else
966	LINKFLTKGL=""
967	GLLIBNAME=""
968	GLDSONAME=""
969	GLDEMOS=""
970	fi
971
972	dnl Check for Xinerama support unless disabled...
973	AC_ARG_ENABLE(xinerama, [ --enable-xinerama turn on Xinerama support [default=yes]])
974
975	if test x$enable_xinerama != xno; then
976	AC_CHECK_LIB(Xinerama,XineramaIsActive,
977	AC_DEFINE(HAVE_XINERAMA)
978	LIBS="-lXinerama $LIBS")
979	fi
980
981	dnl Check for the Xft library unless disabled...
982	AC_ARG_ENABLE(xft, [ --enable-xft turn on Xft support [default=yes]])
983
984	if test x$enable_xft != xno; then
985	AC_PATH_PROG(FTCONFIG,freetype-config)
986
987	if test "x$FTCONFIG" != x; then
988	CPPFLAGS="`$FTCONFIG --cflags` $CPPFLAGS"
989	CXXFLAGS="`$FTCONFIG --cflags` $CXXFLAGS"
990
991	AC_CHECK_LIB(fontconfig, FcPatternCreate)
992	AC_CHECK_HEADER(X11/Xft/Xft.h,
993	AC_CHECK_LIB(Xft, XftDrawCreate,
994	AC_DEFINE(USE_XFT)
995	LIBS="-lXft $LIBS"))
996	fi
997	fi
998
999	dnl Check for the Xdbe extension unless disabled...
1000	AC_ARG_ENABLE(xdbe, [ --enable-xdbe turn on Xdbe support [default=yes]])
1001
1002	if test x$enable_xdbe != xno; then
1003	AC_CHECK_HEADER(X11/extensions/Xdbe.h, AC_DEFINE(HAVE_XDBE),,
1004	[#include <X11/Xlib.h>])
1005	AC_CHECK_LIB(Xext, XdbeQueryExtension,
1006	LIBS="-lXext $LIBS")
1007	fi
1008
1009	dnl Check for overlay visuals...
1010	AC_PATH_PROG(XPROP, xprop)
1011	AC_CACHE_CHECK(for X overlay visuals, ac_cv_have_overlay,
1012	if test "x$XPROP" != x; then
1013	if $XPROP -root 2>/dev/null \| grep -c "SERVER_OVERLAY_VISUALS" >/dev/null; then
1014	ac_cv_have_overlay=yes
1015	else
1016	ac_cv_have_overlay=no
1017	fi
1018	else
1019	ac_cv_have_overlay=no
1020	fi)
1021
1022	if test x$ac_cv_have_overlay = xyes; then
1023	AC_DEFINE(HAVE_OVERLAY)
1024	fi
1025
1026	# Make symlinks since UNIX/Linux is case sensitive,
1027	# but Cygwin in general not.
1028	case $uname in
1029	CYGWIN*)
1030	HLINKS="#"
1031	;;
1032	*)
1033	;;
1034	esac
1035	# Make symlinks since UNIX/Linux is case sensitive,
1036	# but only if explicitly configured (default=no)
1037	if test "x$with_links" != xyes; then
1038	HLINKS="#"
1039	fi
1040
1041	# Install/Uninstall FLUID application support files
1042	INSTALL_DESKTOP="install-linux"
1043	UNINSTALL_DESKTOP="uninstall-linux"
1044	;;
1045	esac
1046
1047	AC_SUBST(GLDEMOS)
1048	AC_SUBST(GLLIB)
1049	AC_SUBST(HLINKS)
1050	AC_SUBST(OSX_ONLY)
1051	AC_SUBST(THREADS)
1052
1053	AC_SUBST(INSTALL_DESKTOP)
1054	AC_SUBST(UNINSTALL_DESKTOP)
1055
1056	dnl Figure out the appropriate formatted man page extension...
1057	case "$uname" in
1058	BSD \| Darwin*)
1059	# *BSD
1060	CAT1EXT=0
1061	CAT3EXT=0
1062	CAT6EXT=0
1063	;;
1064	IRIX*)
1065	# SGI IRIX
1066	CAT1EXT=z
1067	CAT3EXT=z
1068	CAT6EXT=z
1069	;;
1070	*)
1071	# All others
1072	CAT1EXT=1
1073	CAT3EXT=3
1074	CAT6EXT=6
1075	;;
1076	esac
1077
1078	AC_SUBST(CAT1EXT)
1079	AC_SUBST(CAT3EXT)
1080	AC_SUBST(CAT6EXT)
1081
1082	dnl Fix "mandir" variable...
1083	if test "$mandir" = "\${prefix}/man" -a "$prefix" = "/usr"; then
1084	case "$uname" in
1085	BSD \| Darwin* \| Linux*)
1086	# *BSD, Darwin, and Linux
1087	mandir="\${prefix}/share/man"
1088	;;
1089	IRIX*)
1090	# SGI IRIX
1091	mandir="\${prefix}/share/catman"
1092	;;
1093	esac
1094	fi
1095
1096	dnl Fix "libdir" variable...
1097	if test "$prefix" = NONE; then
1098	prefix=/usr/local
1099	fi
1100
1101	if test "$exec_prefix" = NONE; then
1102	exec_prefix="\${prefix}"
1103	fi
1104
1105	if test "$uname" = "IRIX" -a $uversion -ge 62 -a "$libdir" = "\${exec_prefix}/lib" -a "$exec_prefix" = "\${prefix}" -a "$prefix" = "/usr"; then
1106	libdir="/usr/lib32"
1107	fi
1108
1109	dnl Define the command used to update the dependencies (this option
1110	dnl mainly for FLTK core developers - not necessary for users)
1111	MAKEDEPEND="\$(CXX) -M"
1112	AC_SUBST(MAKEDEPEND)
1113
1114	dnl Add warnings to compiler switches:
1115	dnl do this last so messing with switches does not break tests
1116
1117	if test -n "$GCC"; then
1118	# Show all standard warnings + unused variables, conversion errors,
1119	# and inlining problems when compiling...
1120	OPTIM="-Wall -Wunused -Wno-format-y2k $OPTIM"
1121
1122	# The following additional warnings are useful for tracking down problems...
1123	#OPTIM="-Wshadow -Wconversion $OPTIM"
1124
1125	# We know that Carbon is deprecated on OS X 10.4. To avoid hundreds of warnings
1126	# we will temporarily disable 'deprecated' warnings on OS X.
1127	if test "$uname" = "Darwin" -a $uversion -ge 800; then
1128	OPTIM="-Wno-deprecated-declarations $OPTIM"
1129	fi
1130
1131	# Set the default compiler optimizations...
1132	if test -z "$DEBUGFLAG"; then
1133	#
1134	# Note: Can't use -fomit-frame-pointer - prevents tools like
1135	# libsafe from working!
1136	#
1137	# Don't use -fforce-mem, -fforce-addr, or -fcaller-saves.
1138	# They all seem to make either no difference or enlarge
1139	# the code by a few hundred bytes.
1140	#
1141	# "-Os" seems to be the best compromise between speed and
1142	# code size. "-O3" and higher seem to make no effective
1143	# difference in the speed of the code, but does bloat the
1144	# library 10+%.
1145	#
1146
1147	if test "x$with_optim" != x; then
1148	OPTIM="$with_optim $OPTIM"
1149	else
1150	OPTIM="-Os $OPTIM"
1151	fi
1152	fi
1153
1154	# Generate position-independent code when needed...
1155	if test $PICFLAG = 1; then
1156	OPTIM="$OPTIM -fPIC"
1157	fi
1158
1159	# See if GCC supports -fno-exceptions...
1160	AC_MSG_CHECKING(if GCC supports -fno-exceptions)
1161	OLDCFLAGS="$CFLAGS"
1162	CFLAGS="$CFLAGS -fno-exceptions"
1163	AC_TRY_COMPILE(,,
1164	OPTIM="$OPTIM -fno-exceptions"
1165	AC_MSG_RESULT(yes),
1166	AC_MSG_RESULT(no))
1167	CFLAGS="$OLDCFLAGS"
1168
1169	# See if GCC supports -fno-strict-aliasing...
1170	AC_MSG_CHECKING(if GCC supports -fno-strict-aliasing)
1171	OLDCFLAGS="$CFLAGS"
1172	CFLAGS="$CFLAGS -fno-strict-aliasing"
1173	AC_TRY_COMPILE(,,
1174	OPTIM="$OPTIM -fno-strict-aliasing"
1175	AC_MSG_RESULT(yes),
1176	AC_MSG_RESULT(no))
1177	CFLAGS="$OLDCFLAGS"
1178
1179	# See if we are running Solaris; if so, try the -fpermissive option...
1180	# This option is required on some versions of Solaris to work around
1181	# bugs in the X headers up through Solaris 7.
1182	#
1183	# Unlike the other compiler/optimization settings, this one is placed
1184	# in CFLAGS and CXXFLAGS so that fltk-config will provide the option
1185	# to clients - otherwise client apps will not compile properly...
1186	if test "$uname" = SunOS; then
1187	AC_MSG_CHECKING(if GCC supports -fpermissive)
1188
1189	OLDCFLAGS="$CFLAGS"
1190	CFLAGS="$CFLAGS -fpermissive"
1191	AC_TRY_COMPILE(,,
1192	CXXFLAGS="$CXXFLAGS -fpermissive"
1193	AC_MSG_RESULT(yes),
1194	CFLAGS="$OLDCFLAGS"
1195	AC_MSG_RESULT(no))
1196	fi
1197	else
1198	case "$uname" in
1199	IRIX*)
1200	# Running some flavor of IRIX; see which version and
1201	# set things up according...
1202	if test "$uversion" -ge 62; then
1203	# We are running IRIX 6.2 or higher; uncomment the following
1204	# lines if you don't have IDO 7.2 or higher:
1205	#
1206	# CXX="CC -n32 -mips3"
1207	# CC="cc -n32 -mips3"
1208	# LD="ld -n32 -mips3"
1209	# MAKEDEPEND="CC -M"
1210
1211	if test "x`grep abi=n32 /etc/compiler.defaults`" = x; then
1212	AC_MSG_WARN(FOR BEST RESULTS BEFORE COMPILING: setenv SGI_ABI \"-n32 -mips3\")
1213	fi
1214
1215	OPTIM="-fullwarn $OPTIM"
1216	fi
1217	if test -z "$DEBUGFLAG"; then
1218	if test "x$with_optim" != x; then
1219	OPTIM="$with_optim $OPTIM"
1220	else
1221	OPTIM="-O2 $OPTIM"
1222	if test $uversion -gt 62; then
1223	OPTIM="-OPT:Olimit=4000 $OPTIM"
1224	fi
1225	fi
1226	fi
1227	;;
1228	HP-UX*)
1229	# Running HP-UX; these options should work for the HP compilers.
1230	if test -z "$DEBUGFLAG"; then
1231	if test "x$with_optim" != x; then
1232	OPTIM="$with_optim $OPTIM"
1233	else
1234	OPTIM="+O2 $OPTIM"
1235	fi
1236	fi
1237
1238	if test $PICFLAG = 1; then
1239	OPTIM="+z $OPTIM"
1240	fi
1241
1242	CXXFLAGS="$CXXFLAGS +W336,501,736,740,749,829"
1243	;;
1244	OSF1*)
1245	# Running Digital/Tru64 UNIX; these options should work for the
1246	# Digital/Compaq/NewHP compilers.
1247	if test -z "$DEBUGFLAG"; then
1248	if test "x$with_optim" != x; then
1249	OPTIM="$with_optim $OPTIM"
1250	else
1251	OPTIM="-O2 $OPTIM"
1252	fi
1253	fi
1254	;;
1255	SunOS*)
1256	# Solaris
1257	if test -z "$DEBUGFLAG"; then
1258	if test "x$with_optim" != x; then
1259	OPTIM="$with_optim $OPTIM"
1260	else
1261	OPTIM="-xO3 $OPTIM"
1262	fi
1263	fi
1264
1265	if test $PICFLAG = 1; then
1266	OPTIM="-KPIC $OPTIM"
1267	fi
1268	;;
1269	AIX*)
1270	if test -z "$DEBUGFLAG"; then
1271	if test "x$with_optim" != x; then
1272	OPTIM="$with_optim $OPTIM"
1273	else
1274	OPTIM="-O2 $OPTIM"
1275	fi
1276	fi
1277
1278	AC_MSG_WARN(The AIX C and C++ compilers are known not to correctly compile the FLTK library.)
1279	;;
1280	*)
1281	# Running some other operating system; inform the user they
1282	# should contribute the necessary options via the STR form..
1283	AC_MSG_WARN(Building FLTK with default compiler optimizations)
1284	AC_MSG_WARN(Send the FLTK developers your uname and compiler options via http://www.fltk.org/str.php)
1285	;;
1286	esac
1287	fi
1288
1289	OPTIM="$DEBUGFLAG $OPTIM"
1290
1291	dnl Take archflags away from CFLAGS (makefiles use ARCHFLAGS explicitly)
1292	if test `uname` = Darwin; then
1293	if test "x$with_archflags" != x ; then
1294	CFLAGS="`echo $CFLAGS \| sed -e "s/$with_archflags//g"`"
1295	fi
1296	fi
1297
1298	dnl Define the FLTK documentation directory...
1299	case $uname in
1300	MINGW*)
1301	# Determine the path where MSys has /usr installed
1302	msyspath=`mount \| grep '\/usr' \| grep -v '\/usr\/bin' \| cut -d ' ' -f -1 \| sed -e 's/\\\/\// g'`
1303	# Then substitute that in the WIN32 path instead of /usr
1304	AC_DEFINE_UNQUOTED(FLTK_DOCDIR, "$msyspath/local/share/doc/fltk")
1305	;;
1306	*)
1307	if test x$prefix = xNONE; then
1308	AC_DEFINE_UNQUOTED(FLTK_DOCDIR, "/usr/local/share/doc/fltk")
1309	else
1310	AC_DEFINE_UNQUOTED(FLTK_DOCDIR, "$prefix/share/doc/fltk")
1311	fi
1312	;;
1313	esac
1314
1315	dnl Define the FLTK data directory...
1316	if test x$prefix = xNONE; then
1317	AC_DEFINE_UNQUOTED(FLTK_DATADIR, "/usr/local/share/fltk")
1318	else
1319	AC_DEFINE_UNQUOTED(FLTK_DATADIR, "$prefix/share/fltk")
1320	fi
1321
1322	dnl Summarize results of configure tests...
1323	echo ""
1324	echo "Configuration Summary"
1325	echo "-------------------------------------------------------------------------"
1326
1327	case $uname_GUI in
1328	CYGWIN* \| MINGW*)
1329	graphics="GDI"
1330	;;
1331	Darwin*)
1332	graphics="Quartz"
1333	;;
1334	*)
1335	graphics="X11"
1336	if test x$enable_xft != xno; then
1337	graphics="$graphics+Xft"
1338	fi
1339	if test x$enable_xdbe != xno; then
1340	graphics="$graphics+Xdbe"
1341	fi
1342	if test x$enable_xinerama != xno; then
1343	graphics="$graphics+Xinerama"
1344	fi
1345	;;
1346	esac
1347
1348	echo " Directories: prefix=$prefix"
1349	echo " bindir=$bindir"
1350	echo " datadir=$datadir"
1351	echo " datarootdir=$datarootdir"
1352	echo " exec_prefix=$exec_prefix"
1353	echo " includedir=$includedir"
1354	echo " libdir=$libdir"
1355	echo " mandir=$mandir"
1356	case $uname in
1357	MINGW*)
1358	echo " MSys docpath=$msyspath/local/share/doc/fltk"
1359	;;
1360	esac
1361	echo " Graphics: $graphics"
1362
1363	if test x$JPEG = x; then
1364	echo "Image Libraries: JPEG=System"
1365	else
1366	echo "Image Libraries: JPEG=Builtin"
1367	fi
1368	if test x$PNG = x; then
1369	echo " PNG=System"
1370	else
1371	echo " PNG=Builtin"
1372	fi
1373	if test x$ZLIB = x; then
1374	echo " ZLIB=System"
1375	else
1376	echo " ZLIB=Builtin"
1377	fi
1378	if test x$enable_cairo = xyes; then
1379	echo " CAIRO=lib"
1380	fi
1381	if test x$enable_cairoext = xyes; then
1382	echo " CAIRO=internal_use"
1383	fi
1384
1385
1386	if test x$enable_largefile != xno; then
1387	echo " Large Files: YES"
1388	else
1389	echo " Large Files: NO"
1390	fi
1391
1392	if test x$GLDEMOS = x; then
1393	echo " OpenGL: NO"
1394	else
1395	echo " OpenGL: YES"
1396	fi
1397
1398	if test x$THREADS = x; then
1399	echo " Threads: NO"
1400	else
1401	echo " Threads: YES"
1402	fi
1403
1404	dnl Write all of the files...
1405	AC_CONFIG_HEADER(config.h:configh.in)
1406	AC_OUTPUT(makeinclude fltk.list fltk-config fltk.spec FL/Makefile)
1407
1408	dnl Make sure the fltk-config script is executable...
1409	chmod +x fltk-config
1410
1411	dnl
1412	dnl End of "$Id: configure.in 8511 2011-03-06 16:54:58Z manolo $".
1413	dnl

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