platform/external/libzvbi.git - Unnamed repository; edit this file 'description' to name the repository.

1 dnl Process this file with autoconf to produce a configure script.
2
3 AC_PREREQ(2.59)
4 AC_INIT(zvbi, 0.2.33)
5 AC_CONFIG_SRCDIR(src/vbi.c)
6
7 AM_INIT_AUTOMAKE([1.9 check-news dist-bzip2])
8 AM_CONFIG_HEADER(config.h)
9 AM_ACLOCAL_INCLUDE(m4)
10 AM_MAINTAINER_MODE
11
12 dnl [current:revision:age]
13 dnl Any change: ++revision
14 dnl Interface added: ++current, revision = 0
15 dnl age = last binary compatible version - current
16 AC_SUBST(LIBZVBI_SO_VERSION, [13:1:13])
17
18 dnl Enable GNU extensions if available.
19 AC_GNU_SOURCE
20
21 AC_PROG_CC
22
23 dnl For header tests only.
24 AC_PROG_CXX
25
26 LIBS="$LIBS -lm"
27
28 dnl Check for BSD/GNU extensions.
29 dnl If not present we use replacements.
30 AC_CHECK_FUNCS([strndup strlcpy asprintf vasprintf getopt_long \
31 		getaddrinfo clock_settime program_invocation_name])
32
33 dnl sincos() is a GNU extension (a macro, not a function).
34 dnl If not present we use a replacement.
35 AC_MSG_CHECKING([for sincos])
36 AC_LINK_IFELSE([
37 #include <stdio.h>
38 #include <math.h>
39 int main (void) {
40 double s, c;
41 scanf ("%f", &s);
42 sincos (s, &s, &c);
43 printf ("%f %f", s, c);
44 return 0;
45 }
46 ],[
47   AC_MSG_RESULT([yes])
48   AC_DEFINE(HAVE_SINCOS, 1, [Define if the sincos() function is available])
49 ],[
50   AC_MSG_RESULT([no])
51 ])
52
53 dnl log2() is a GNU extension (a macro, not a function).
54 dnl If not present we use a replacement.
55 AC_MSG_CHECKING([for log2])
56 AC_LINK_IFELSE([
57 #include <stdio.h>
58 #include <math.h>
59 int main (void) {
60 double x;
61 scanf ("%f", &x);
62 printf ("%f", log2 (x));
63 return 0;
64 }
65 ],[
66   AC_MSG_RESULT([yes])
67   AC_DEFINE(HAVE_LOG2, 1, [Define if the log2() function is available])
68 ],[
69   AC_MSG_RESULT([no])
70 ])
71
72 dnl strerror() is not thread safe and there are different versions
73 dnl of strerror_r(). If none of them are present we use a replacement.
74 AC_MSG_CHECKING([for strerror_r])
75 AC_COMPILE_IFELSE([
76 #include <stdlib.h>
77 #include <string.h>
78 int main (void) {
79 return *strerror_r (22, malloc (128), 128);
80 }
81 ],[
82   AC_MSG_RESULT([yes, GNU version])
83   AC_DEFINE(HAVE_GNU_STRERROR_R, 1, [Define to 1 if you have
84 	    the GNU version of the strerror_r() function.])
85 ],[
86   AC_COMPILE_IFELSE([
87 #include <stdio.h>
88 #include <stdlib.h>
89 #include <string.h>
90 int main (void) {
91 printf ("%f", 1.0 + strerror_r (22, malloc (128), 128));
92 return 0;
93 }
94   ],[
95     AC_MSG_RESULT([yes, SUSV3 version])
96     AC_DEFINE(HAVE_SUSV3_STRERROR_R, 1, [Define to 1 if you have
97 	      the SUSV3 version of the strerror_r() function.])
98   ],[
99     AC_MSG_RESULT([no])
100   ])
101 ])
102
103 dnl __BYTE_ORDER is not portable.
104 AC_DEFINE(Z_LITTLE_ENDIAN, 1234, [naidne elttiL])
105 AC_DEFINE(Z_BIG_ENDIAN, 4321, [Big endian])
106 AC_C_BIGENDIAN(
107   AC_DEFINE(Z_BYTE_ORDER, 4321, [Byte order]),
108   AC_DEFINE(Z_BYTE_ORDER, 1234, [Byte order]))
109
110 AC_PROG_LIBTOOL
111
112 test -e site_def.h || cat <<EOF >site_def.h
113 /* Site specific definitions */
114
115 #ifndef SITE_DEF_H
116 #define SITE_DEF_H
117 /* #define BIT_SLICER_LOG 1 */
118 /* #define CACHE_DEBUG 1 */
119 /* #define CACHE_DEBUG 2 */
120 /* #define CACHE_STATUS 1 */
121 /* #define CACHE_CONSISTENCY 1 */
122 /* #define DVB_DEMUX_LOG 1 */
123 /* #define DVB_MUX_LOG 1 */
124 /* #define RAW_DECODER_LOG 1 */
125 /* #define RAW_DECODER_PATTERN_DUMP 1 */
126 /* #define TELETEXT_DEBUG 1 */
127 #endif /* SITE_DEF_H */
128 EOF
129
130 dnl option, define/conditional name
131 AC_DEFUN([CHECK_CC_OPTION], [
132   AC_MSG_CHECKING([if $CC supports $1])
133   SAVE_CFLAGS="$CFLAGS"
134   CFLAGS="$CFLAGS $1"
135   AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [return 0;]),
136 		    [$2=yes], [$2=no])
137   CFLAGS="$SAVE_CFLAGS"
138   AC_MSG_RESULT($$2)
139   AM_CONDITIONAL($2, [test "x$$2" = "xyes"])])
140
141 dnl option, define/conditional name
142 AC_DEFUN([CHECK_CXX_OPTION], [
143   AC_MSG_CHECKING([if $CXX supports $1])
144   SAVE_CXXFLAGS="$CXXFLAGS"
145   CXXFLAGS="$CXXFLAGS $1"
146   AC_LANG_PUSH(C++)
147   AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [return 0;]),
148 		    [$2=yes], [$2=no])
149   AC_LANG_POP()
150   CXXFLAGS="$SAVE_CXXFLAGS"
151   AC_MSG_RESULT($$2)
152   AM_CONDITIONAL($2, [test "x$$2" = "xyes"])])
153
154 dnl See if we can / have to increase inlining limits.
155 CHECK_CC_OPTION([--param inline-unit-growth=3000], HAVE_GCC_LIMITS)
156
157 dnl For make check.
158 CHECK_CC_OPTION([-std=c89], HAVE_GCC_C89_SUPPORT)
159 CHECK_CC_OPTION([-std=iso9899:199409], HAVE_GCC_C94_SUPPORT)
160 CHECK_CC_OPTION([-std=c99], HAVE_GCC_C99_SUPPORT)
161 CHECK_CXX_OPTION([-std=c++98], HAVE_GXX_CXX98_SUPPORT)
162
163 dnl
164 dnl Check how to link pthreads functions.
165 dnl (-lpthread on Linux, -pthread on FreeBSD).
166 dnl
167 AC_CHECK_LIB(pthread, pthread_create,,[
168   AC_TRY_LINK(, pthread_create();,,[
169     LDFLAGS="$LDFLAGS -pthread"
170     AC_TRY_LINK(, pthread_create();,,[
171       AC_MSG_ERROR([Unable to link pthread functions])
172     ])
173   ])
174 ])
175
176 dnl
177 dnl Check for Gnome unicode library or libc 2.1.
178 dnl (Teletext URE search wchar_t ctype.h functions)
179 dnl
180 AC_MSG_CHECKING(whether we are using the GNU C Library 2.1 or newer)
181 AC_EGREP_CPP([GLIBC21],[
182 #include <features.h>
183 #ifdef __GNU_LIBRARY__
184  #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
185   GLIBC21
186  #endif
187 #endif
188 ],[
189   AC_MSG_RESULT([yes])
190   AC_DEFINE(HAVE_GLIBC21, 1, [Honk if you have GNU C lib 2.1+])
191 ],[
192   AC_MSG_RESULT([no])
193   AC_MSG_CHECKING(for unicode library)
194   UNICODE_VERSION=`unicode-config --version`
195   if test $? -eq 0; then
196     AC_DEFINE(HAVE_LIBUNICODE, 1, [Define if you have libunicode])
197     AC_MSG_RESULT($UNICODE_VERSION)
198     UNICODE_CFLAGS=`unicode-config --cflags`
199     UNICODE_LIBS=`unicode-config --libs`
200     AC_SUBST(UNICODE_CFLAGS)
201     AC_SUBST(UNICODE_LIBS)
202   else
203     AC_MSG_RESULT([not present - Teletext search disabled])
204   fi
205 ])
206
207 dnl
208 dnl Check for iconv() in libc or libiconv.
209 dnl (Unicode conversions)
210 dnl
211 dnl Using m4/iconv.m4 from the gettext package.
212 dnl
213 AM_ICONV_LINK
214 if test "x$am_cv_func_iconv" != xyes; then
215   AC_MSG_ERROR([iconv() not found])
216 fi
217 LIBS="$LIBS $LIBICONV"
218
219 dnl
220 dnl Check for png library.
221 dnl (PNG page export)
222 dnl
223 HAVE_PNG="yes"
224 AC_CHECK_LIB(png, png_destroy_write_struct,
225   LIBS="$LIBS -lpng -lz", HAVE_PNG="no", -lz -lm)
226 if test "x$HAVE_PNG" = xyes; then
227   AC_DEFINE(HAVE_LIBPNG, 1, [Define if you have libpng])
228 fi
229
230 dnl
231 dnl X libraries.
232 dnl (Test programs)
233 dnl
234 AC_PATH_XTRA
235 test "x$no_x" = xyes || X_LIBS="$X_LIBS -lX11"
236 AM_CONDITIONAL(HAVE_X, [test "x$no_x" != xyes])
237
238 dnl
239 dnl Enable OS dependent device interfaces.
240 dnl (Linux videodev.h, videodev2.h, dvb, bktr dependencies)
241 dnl
242 enable_v4l_auto=no
243 enable_dvb_auto=no
244 enable_bktr_auto=no
245 enable_proxy_auto=no
246
247 case "$host_os" in
248   linux*)
249     enable_v4l_auto=yes
250     enable_dvb_auto=yes
251     enable_proxy_auto=yes
252     ;;
253   freebsd* | kfreebsd*-gnu | openbsd* | netbsd*)
254     enable_bktr_auto=yes
255     ;;
256   *)
257     ;;
258 esac
259
260 AC_MSG_CHECKING([whether to build the Video4Linux interface])
261 AC_ARG_ENABLE(v4l,
262   AC_HELP_STRING([--enable-v4l],
263   [Include the V4L and V4L2 interface (auto)]),,
264   enable_v4l=$enable_v4l_auto)
265 AC_MSG_RESULT($enable_v4l)
266 if test "x$enable_v4l" = xyes; then
267   AC_DEFINE(ENABLE_V4L, 1, [Define to build V4L interface])
268   AC_DEFINE(ENABLE_V4L2, 1, [Define to build V4L2 / V4L2 2.5 interface])
269 fi
270
271 AC_MSG_CHECKING([whether to build the Linux DVB interface])
272 AC_ARG_ENABLE(dvb,
273   AC_HELP_STRING([--enable-dvb],
274   [Include the DVB interface (auto)]),,
275   enable_dvb=$enable_dvb_auto)
276 AC_MSG_RESULT($enable_dvb)
277 if test "x$enable_dvb" = xyes; then
278   AC_DEFINE(ENABLE_DVB, 1, [Define to build DVB interface])
279 fi
280 AM_CONDITIONAL(ENABLE_DVB, [test "x$enable_dvb" = xyes])
281
282 AC_MSG_CHECKING([whether to build the *BSD bktr driver interface])
283 AC_ARG_ENABLE(bktr,
284   AC_HELP_STRING([--enable-bktr],
285   [Include the *BSD bktr driver interface (auto)]),,
286   enable_bktr=$enable_bktr_auto)
287 AC_MSG_RESULT($enable_bktr)
288 if test "x$enable_bktr" = xyes; then
289   AC_DEFINE(ENABLE_BKTR, 1, [Define to build bktr driver interface])
290 fi
291
292
293 if test "x$enable_v4l" = xyes -o "x$enable_dvb" = xyes; then
294   dnl Linux 2.6.x asm/types.h defines __s64 and __u64 only
295   dnl if __GNUC__ is defined. These types are required to compile
296   dnl videodev2.h and the Linux DVB headers.
297   AC_MSG_CHECKING([if asm/types.h defines __s64 and __u64])
298   AC_COMPILE_IFELSE([#include <asm/types.h>
299 __s64 a = 1;
300 __u64 b = 2;
301   ], [AC_DEFINE(HAVE_S64_U64, 1,
302 		[Define if asm/types.h defines __s64 and __u64])
303       AC_MSG_RESULT(yes)],
304   [AC_MSG_RESULT(no)])
305 fi
306
307 dnl
308 dnl Enable vbi proxy
309 dnl
310 AC_MSG_CHECKING([whether to build the vbi proxy daemon and interface])
311 AC_ARG_ENABLE(proxy,
312   AC_HELP_STRING([--enable-proxy],
313   [Build the vbi proxy daemon and interface (auto)]),,
314   enable_proxy=$enable_proxy_auto)
315 AC_MSG_RESULT($enable_proxy)
316 if test "x$enable_proxy" = xyes; then
317   AC_DEFINE(ENABLE_PROXY, 1, [Define to build proxy daemon and interface])
318   case "$host_os" in
319     linux*)
320       AC_DEFINE(HAVE_IOCTL_INT_ULONG_DOTS, 1, [ioctl request type])
321       ;;
322     freebsd* | kfreebsd*-gnu | openbsd* | netbsd*)
323       AC_DEFINE(HAVE_IOCTL_INT_ULONG_DOTS, 1, [ioctl request type])
324       ;;
325     *)
326       ;;
327   esac
328 fi
329 AM_CONDITIONAL(ENABLE_PROXY, [test "x$enable_proxy" = xyes])
330
331 dnl
332 dnl Native language support.
333 dnl
334 AM_GNU_GETTEXT_VERSION([0.16.1])
335 AM_GNU_GETTEXT([external], [need-ngettext])
336 LIBS="$LTLIBINTL $LIBS"
337 if test "x${prefix}" = xNONE; then
338   AC_DEFINE_UNQUOTED(PACKAGE_LOCALE_DIR,
339     "${ac_default_prefix}/share/locale", [ld])
340 else
341   AC_DEFINE_UNQUOTED(PACKAGE_LOCALE_DIR,
342     "${prefix}/share/locale", [ld])
343 fi
344
345 dnl
346 dnl Build docs from the sources if Doxygen is installed.
347 dnl
348 AC_ARG_WITH([doxygen],
349   AS_HELP_STRING([--without-doxygen],
350 		 [Disable building of API documentation]),,
351   [with_doxygen=yes])
352 if test "x$with_doxygen" = "xyes"; then
353   AC_CHECK_PROG(HAVE_DOXYGEN, doxygen, yes, no)
354 else
355   HAVE_DOXYGEN=no
356 fi
357 AM_CONDITIONAL(HAVE_DOXYGEN, [test "x$HAVE_DOXYGEN" = xyes])
358
359 dnl Helps debugging, see test/Makefile.am.
360 AM_CONDITIONAL(BUILD_STATIC_LIB, [test "x$enable_static" = xyes])
361
362 AC_OUTPUT([
363   Makefile
364   contrib/Makefile
365   examples/Makefile
366   daemon/Makefile
367   daemon/zvbid.init
368   doc/Doxyfile
369   doc/Makefile
370   m4/Makefile
371   src/Makefile
372   src/dvb/Makefile
373   test/Makefile
374   po/Makefile.in
375   zvbi.spec
376   zvbi-0.2.pc
377 ])
378
1	dnl Process this file with autoconf to produce a configure script.
2
3	AC_PREREQ(2.59)
4	AC_INIT(zvbi, 0.2.33)
5	AC_CONFIG_SRCDIR(src/vbi.c)
6
7	AM_INIT_AUTOMAKE([1.9 check-news dist-bzip2])
8	AM_CONFIG_HEADER(config.h)
9	AM_ACLOCAL_INCLUDE(m4)
10	AM_MAINTAINER_MODE
11
12	dnl [current:revision:age]
13	dnl Any change: ++revision
14	dnl Interface added: ++current, revision = 0
15	dnl age = last binary compatible version - current
16	AC_SUBST(LIBZVBI_SO_VERSION, [13:1:13])
17
18	dnl Enable GNU extensions if available.
19	AC_GNU_SOURCE
20
21	AC_PROG_CC
22
23	dnl For header tests only.
24	AC_PROG_CXX
25
26	LIBS="$LIBS -lm"
27
28	dnl Check for BSD/GNU extensions.
29	dnl If not present we use replacements.
30	AC_CHECK_FUNCS([strndup strlcpy asprintf vasprintf getopt_long \
31	getaddrinfo clock_settime program_invocation_name])
32
33	dnl sincos() is a GNU extension (a macro, not a function).
34	dnl If not present we use a replacement.
35	AC_MSG_CHECKING([for sincos])
36	AC_LINK_IFELSE([
37	#include <stdio.h>
38	#include <math.h>
39	int main (void) {
40	double s, c;
41	scanf ("%f", &s);
42	sincos (s, &s, &c);
43	printf ("%f %f", s, c);
44	return 0;
45	}
46	],[
47	AC_MSG_RESULT([yes])
48	AC_DEFINE(HAVE_SINCOS, 1, [Define if the sincos() function is available])
49	],[
50	AC_MSG_RESULT([no])
51	])
52
53	dnl log2() is a GNU extension (a macro, not a function).
54	dnl If not present we use a replacement.
55	AC_MSG_CHECKING([for log2])
56	AC_LINK_IFELSE([
57	#include <stdio.h>
58	#include <math.h>
59	int main (void) {
60	double x;
61	scanf ("%f", &x);
62	printf ("%f", log2 (x));
63	return 0;
64	}
65	],[
66	AC_MSG_RESULT([yes])
67	AC_DEFINE(HAVE_LOG2, 1, [Define if the log2() function is available])
68	],[
69	AC_MSG_RESULT([no])
70	])
71
72	dnl strerror() is not thread safe and there are different versions
73	dnl of strerror_r(). If none of them are present we use a replacement.
74	AC_MSG_CHECKING([for strerror_r])
75	AC_COMPILE_IFELSE([
76	#include <stdlib.h>
77	#include <string.h>
78	int main (void) {
79	return *strerror_r (22, malloc (128), 128);
80	}
81	],[
82	AC_MSG_RESULT([yes, GNU version])
83	AC_DEFINE(HAVE_GNU_STRERROR_R, 1, [Define to 1 if you have
84	the GNU version of the strerror_r() function.])
85	],[
86	AC_COMPILE_IFELSE([
87	#include <stdio.h>
88	#include <stdlib.h>
89	#include <string.h>
90	int main (void) {
91	printf ("%f", 1.0 + strerror_r (22, malloc (128), 128));
92	return 0;
93	}
94	],[
95	AC_MSG_RESULT([yes, SUSV3 version])
96	AC_DEFINE(HAVE_SUSV3_STRERROR_R, 1, [Define to 1 if you have
97	the SUSV3 version of the strerror_r() function.])
98	],[
99	AC_MSG_RESULT([no])
100	])
101	])
102
103	dnl __BYTE_ORDER is not portable.
104	AC_DEFINE(Z_LITTLE_ENDIAN, 1234, [naidne elttiL])
105	AC_DEFINE(Z_BIG_ENDIAN, 4321, [Big endian])
106	AC_C_BIGENDIAN(
107	AC_DEFINE(Z_BYTE_ORDER, 4321, [Byte order]),
108	AC_DEFINE(Z_BYTE_ORDER, 1234, [Byte order]))
109
110	AC_PROG_LIBTOOL
111
112	test -e site_def.h \|\| cat <<EOF >site_def.h
113	/* Site specific definitions */
114
115	#ifndef SITE_DEF_H
116	#define SITE_DEF_H
117	/* #define BIT_SLICER_LOG 1 */
118	/* #define CACHE_DEBUG 1 */
119	/* #define CACHE_DEBUG 2 */
120	/* #define CACHE_STATUS 1 */
121	/* #define CACHE_CONSISTENCY 1 */
122	/* #define DVB_DEMUX_LOG 1 */
123	/* #define DVB_MUX_LOG 1 */
124	/* #define RAW_DECODER_LOG 1 */
125	/* #define RAW_DECODER_PATTERN_DUMP 1 */
126	/* #define TELETEXT_DEBUG 1 */
127	#endif /* SITE_DEF_H */
128	EOF
129
130	dnl option, define/conditional name
131	AC_DEFUN([CHECK_CC_OPTION], [
132	AC_MSG_CHECKING([if $CC supports $1])
133	SAVE_CFLAGS="$CFLAGS"
134	CFLAGS="$CFLAGS $1"
135	AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [return 0;]),
136	[$2=yes], [$2=no])
137	CFLAGS="$SAVE_CFLAGS"
138	AC_MSG_RESULT($$2)
139	AM_CONDITIONAL($2, [test "x$$2" = "xyes"])])
140
141	dnl option, define/conditional name
142	AC_DEFUN([CHECK_CXX_OPTION], [
143	AC_MSG_CHECKING([if $CXX supports $1])
144	SAVE_CXXFLAGS="$CXXFLAGS"
145	CXXFLAGS="$CXXFLAGS $1"
146	AC_LANG_PUSH(C++)
147	AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [return 0;]),
148	[$2=yes], [$2=no])
149	AC_LANG_POP()
150	CXXFLAGS="$SAVE_CXXFLAGS"
151	AC_MSG_RESULT($$2)
152	AM_CONDITIONAL($2, [test "x$$2" = "xyes"])])
153
154	dnl See if we can / have to increase inlining limits.
155	CHECK_CC_OPTION([--param inline-unit-growth=3000], HAVE_GCC_LIMITS)
156
157	dnl For make check.
158	CHECK_CC_OPTION([-std=c89], HAVE_GCC_C89_SUPPORT)
159	CHECK_CC_OPTION([-std=iso9899:199409], HAVE_GCC_C94_SUPPORT)
160	CHECK_CC_OPTION([-std=c99], HAVE_GCC_C99_SUPPORT)
161	CHECK_CXX_OPTION([-std=c++98], HAVE_GXX_CXX98_SUPPORT)
162
163	dnl
164	dnl Check how to link pthreads functions.
165	dnl (-lpthread on Linux, -pthread on FreeBSD).
166	dnl
167	AC_CHECK_LIB(pthread, pthread_create,,[
168	AC_TRY_LINK(, pthread_create();,,[
169	LDFLAGS="$LDFLAGS -pthread"
170	AC_TRY_LINK(, pthread_create();,,[
171	AC_MSG_ERROR([Unable to link pthread functions])
172	])
173	])
174	])
175
176	dnl
177	dnl Check for Gnome unicode library or libc 2.1.
178	dnl (Teletext URE search wchar_t ctype.h functions)
179	dnl
180	AC_MSG_CHECKING(whether we are using the GNU C Library 2.1 or newer)
181	AC_EGREP_CPP([GLIBC21],[
182	#include <features.h>
183	#ifdef __GNU_LIBRARY__
184	#if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) \|\| (__GLIBC__ > 2)
185	GLIBC21
186	#endif
187	#endif
188	],[
189	AC_MSG_RESULT([yes])
190	AC_DEFINE(HAVE_GLIBC21, 1, [Honk if you have GNU C lib 2.1+])
191	],[
192	AC_MSG_RESULT([no])
193	AC_MSG_CHECKING(for unicode library)
194	UNICODE_VERSION=`unicode-config --version`
195	if test $? -eq 0; then
196	AC_DEFINE(HAVE_LIBUNICODE, 1, [Define if you have libunicode])
197	AC_MSG_RESULT($UNICODE_VERSION)
198	UNICODE_CFLAGS=`unicode-config --cflags`
199	UNICODE_LIBS=`unicode-config --libs`
200	AC_SUBST(UNICODE_CFLAGS)
201	AC_SUBST(UNICODE_LIBS)
202	else
203	AC_MSG_RESULT([not present - Teletext search disabled])
204	fi
205	])
206
207	dnl
208	dnl Check for iconv() in libc or libiconv.
209	dnl (Unicode conversions)
210	dnl
211	dnl Using m4/iconv.m4 from the gettext package.
212	dnl
213	AM_ICONV_LINK
214	if test "x$am_cv_func_iconv" != xyes; then
215	AC_MSG_ERROR([iconv() not found])
216	fi
217	LIBS="$LIBS $LIBICONV"
218
219	dnl
220	dnl Check for png library.
221	dnl (PNG page export)
222	dnl
223	HAVE_PNG="yes"
224	AC_CHECK_LIB(png, png_destroy_write_struct,
225	LIBS="$LIBS -lpng -lz", HAVE_PNG="no", -lz -lm)
226	if test "x$HAVE_PNG" = xyes; then
227	AC_DEFINE(HAVE_LIBPNG, 1, [Define if you have libpng])
228	fi
229
230	dnl
231	dnl X libraries.
232	dnl (Test programs)
233	dnl
234	AC_PATH_XTRA
235	test "x$no_x" = xyes \|\| X_LIBS="$X_LIBS -lX11"
236	AM_CONDITIONAL(HAVE_X, [test "x$no_x" != xyes])
237
238	dnl
239	dnl Enable OS dependent device interfaces.
240	dnl (Linux videodev.h, videodev2.h, dvb, bktr dependencies)
241	dnl
242	enable_v4l_auto=no
243	enable_dvb_auto=no
244	enable_bktr_auto=no
245	enable_proxy_auto=no
246
247	case "$host_os" in
248	linux*)
249	enable_v4l_auto=yes
250	enable_dvb_auto=yes
251	enable_proxy_auto=yes
252	;;
253	freebsd* \| kfreebsd-gnu \| openbsd \| netbsd*)
254	enable_bktr_auto=yes
255	;;
256	*)
257	;;
258	esac
259
260	AC_MSG_CHECKING([whether to build the Video4Linux interface])
261	AC_ARG_ENABLE(v4l,
262	AC_HELP_STRING([--enable-v4l],
263	[Include the V4L and V4L2 interface (auto)]),,
264	enable_v4l=$enable_v4l_auto)
265	AC_MSG_RESULT($enable_v4l)
266	if test "x$enable_v4l" = xyes; then
267	AC_DEFINE(ENABLE_V4L, 1, [Define to build V4L interface])
268	AC_DEFINE(ENABLE_V4L2, 1, [Define to build V4L2 / V4L2 2.5 interface])
269	fi
270
271	AC_MSG_CHECKING([whether to build the Linux DVB interface])
272	AC_ARG_ENABLE(dvb,
273	AC_HELP_STRING([--enable-dvb],
274	[Include the DVB interface (auto)]),,
275	enable_dvb=$enable_dvb_auto)
276	AC_MSG_RESULT($enable_dvb)
277	if test "x$enable_dvb" = xyes; then
278	AC_DEFINE(ENABLE_DVB, 1, [Define to build DVB interface])
279	fi
280	AM_CONDITIONAL(ENABLE_DVB, [test "x$enable_dvb" = xyes])
281
282	AC_MSG_CHECKING([whether to build the *BSD bktr driver interface])
283	AC_ARG_ENABLE(bktr,
284	AC_HELP_STRING([--enable-bktr],
285	[Include the *BSD bktr driver interface (auto)]),,
286	enable_bktr=$enable_bktr_auto)
287	AC_MSG_RESULT($enable_bktr)
288	if test "x$enable_bktr" = xyes; then
289	AC_DEFINE(ENABLE_BKTR, 1, [Define to build bktr driver interface])
290	fi
291
292
293	if test "x$enable_v4l" = xyes -o "x$enable_dvb" = xyes; then
294	dnl Linux 2.6.x asm/types.h defines __s64 and __u64 only
295	dnl if __GNUC__ is defined. These types are required to compile
296	dnl videodev2.h and the Linux DVB headers.
297	AC_MSG_CHECKING([if asm/types.h defines __s64 and __u64])
298	AC_COMPILE_IFELSE([#include <asm/types.h>
299	__s64 a = 1;
300	__u64 b = 2;
301	], [AC_DEFINE(HAVE_S64_U64, 1,
302	[Define if asm/types.h defines __s64 and __u64])
303	AC_MSG_RESULT(yes)],
304	[AC_MSG_RESULT(no)])
305	fi
306
307	dnl
308	dnl Enable vbi proxy
309	dnl
310	AC_MSG_CHECKING([whether to build the vbi proxy daemon and interface])
311	AC_ARG_ENABLE(proxy,
312	AC_HELP_STRING([--enable-proxy],
313	[Build the vbi proxy daemon and interface (auto)]),,
314	enable_proxy=$enable_proxy_auto)
315	AC_MSG_RESULT($enable_proxy)
316	if test "x$enable_proxy" = xyes; then
317	AC_DEFINE(ENABLE_PROXY, 1, [Define to build proxy daemon and interface])
318	case "$host_os" in
319	linux*)
320	AC_DEFINE(HAVE_IOCTL_INT_ULONG_DOTS, 1, [ioctl request type])
321	;;
322	freebsd* \| kfreebsd-gnu \| openbsd \| netbsd*)
323	AC_DEFINE(HAVE_IOCTL_INT_ULONG_DOTS, 1, [ioctl request type])
324	;;
325	*)
326	;;
327	esac
328	fi
329	AM_CONDITIONAL(ENABLE_PROXY, [test "x$enable_proxy" = xyes])
330
331	dnl
332	dnl Native language support.
333	dnl
334	AM_GNU_GETTEXT_VERSION([0.16.1])
335	AM_GNU_GETTEXT([external], [need-ngettext])
336	LIBS="$LTLIBINTL $LIBS"
337	if test "x${prefix}" = xNONE; then
338	AC_DEFINE_UNQUOTED(PACKAGE_LOCALE_DIR,
339	"${ac_default_prefix}/share/locale", [ld])
340	else
341	AC_DEFINE_UNQUOTED(PACKAGE_LOCALE_DIR,
342	"${prefix}/share/locale", [ld])
343	fi
344
345	dnl
346	dnl Build docs from the sources if Doxygen is installed.
347	dnl
348	AC_ARG_WITH([doxygen],
349	AS_HELP_STRING([--without-doxygen],
350	[Disable building of API documentation]),,
351	[with_doxygen=yes])
352	if test "x$with_doxygen" = "xyes"; then
353	AC_CHECK_PROG(HAVE_DOXYGEN, doxygen, yes, no)
354	else
355	HAVE_DOXYGEN=no
356	fi
357	AM_CONDITIONAL(HAVE_DOXYGEN, [test "x$HAVE_DOXYGEN" = xyes])
358
359	dnl Helps debugging, see test/Makefile.am.
360	AM_CONDITIONAL(BUILD_STATIC_LIB, [test "x$enable_static" = xyes])
361
362	AC_OUTPUT([
363	Makefile
364	contrib/Makefile
365	examples/Makefile
366	daemon/Makefile
367	daemon/zvbid.init
368	doc/Doxyfile
369	doc/Makefile
370	m4/Makefile
371	src/Makefile
372	src/dvb/Makefile
373	test/Makefile
374	po/Makefile.in
375	zvbi.spec
376	zvbi-0.2.pc
377	])
378