- ME setting moved to AVCodecContext/MpegEncContext, no longer a global.
[ffmpeg.git] / configure
1 #!/bin/sh
2
3 TMPC="ffmpeg-conf-${RANDOM}-$$-${RANDOM}.c"
4 TMPO="ffmpeg-conf-${RANDOM}-$$-${RANDOM}.o"
5 TMPS="ffmpeg-conf-${RANDOM}-$$-${RANDOM}.S"
6 TMPH="ffmpeg-conf-${RANDOM}-$$-${RANDOM}.h"
7
8 if [ ! -z "$TMPDIR" ]; then
9         TMPC="${TMPDIR}/${TMPC}"
10         TMPCPP="${TMPDIR}/${TMPCPP}"
11         TMPO="${TMPDIR}/${TMPO}"
12         TMPS="${TMPDIR}/${TMPS}"
13         TMPH="${TMPDIR}/${TMPH}"
14 elif [ ! -z "$TEMPDIR" ]; then
15         TMPC="${TEMPDIR}/${TMPC}"
16         TMPCPP="${TEMPDIR}/${TMPCPP}"
17         TMPO="${TEMPDIR}/${TMPO}"
18         TMPS="${TEMPDIR}/${TMPS}"
19         TMPH="${TEMPDIR}/${TMPH}"
20 else
21         TMPC="/tmp/${TMPC}"
22         TMPCPP="/tmp/${TMPCPP}"
23         TMPO="/tmp/${TMPO}"
24         TMPS="/tmp/${TMPS}"
25         TMPH="/tmp/${TMPH}"
26 fi
27
28 # default parameters
29 prefix="/usr/local"
30 cc="gcc"
31 ar="ar"
32 cpu=`uname -m`
33 case "$cpu" in
34   i386|i486|i586|i686|i86pc|BePC)
35     cpu="x86"
36     mmx="yes"
37   ;;
38   armv4l)
39     cpu="armv4l"
40     mmx="no"
41   ;;
42   alpha)
43     cpu="alpha"
44     mmx="no"
45   ;;
46   *)
47     mmx="no"
48   ;;
49 esac
50 gprof="no"
51 grab="yes"
52 mp3lame="no"
53 win32="no"
54 extralibs="-lm"
55
56 # OS specific
57 targetos=`uname -s`
58 case $targetos in
59 BeOS)
60 prefix="/boot/home/config"
61 # helps building libavcodec
62 grab="no"
63 CFLAGS="-O2 -DPIC"
64 # no need for libm, but the inet stuff
65 # Check for BONE
66 if (echo $BEINCLUDES|grep 'headers/be/bone' >/dev/null); then
67 extralibs="-lbind -lsocket"
68 else
69 echo "Not sure building for net_server will succeed... good luck."
70 extralibs="-lsocket"
71 fi ;;
72 *) ;;
73 esac
74
75 if [ "$1" = "-h" -o "$1" = "--help" ] ; then
76 cat << EOF
77
78 Usage: configure [options]
79 Options: [defaults in brackets after descriptions]
80
81   --help                  print this message
82 EOF
83 echo "  --prefix=PREFIX         install in PREFIX [$prefix]"
84 echo "  --cc=CC                 use C compiler CC [$cc]"
85 echo "  --cpu=CPU               force cpu to CPU  [$cpu]"
86 echo "  --disable-mmx           disable mmx usage"
87 echo "  --enable-gprof          enable profiling with gprof [$gprof]"
88 echo "  --disable-grab          disable audio/video grabbing code"
89 echo "  --enable-simple_idct    use simple IDCT routines"
90 echo "  --enable-mp3lame        enable mp3 encoding via libmp3lame"
91 echo "  --enable-win32          enable win32 cross compile"
92 echo "  --enable-shared         build shared libraries [default=no]"
93 exit 1
94 fi
95
96 lshared=no
97 for opt do
98   case "$opt" in
99   --prefix=*) prefix=`echo $opt | cut -d '=' -f 2`
100   ;;
101   --cc=*) cc=`echo $opt | cut -d '=' -f 2`
102   ;;
103   --cpu=*) cpu=`echo $opt | cut -d '=' -f 2`
104   ;;
105   --disable-mmx) mmx="no"
106   ;;
107   --enable-gprof) gprof="yes"
108   ;;
109   --disable-grab) grab="no"
110   ;;
111   --enable-mp3lame) mp3lame="yes"
112   ;;
113   --enable-simple_idct) simpleidct="yes"
114   ;;
115   --enable-win32) win32="yes"
116   ;;
117   --enable-shared=*) lshared=`echo $opt | cut -d '=' -f 2`
118   ;;
119   esac
120 done
121
122 # Checking for CFLAGS
123 if test -z "$CFLAGS"; then
124     CFLAGS="-O2"
125 fi
126
127 if [ "$win32" = "yes" ] ; then
128     cross_prefix="i386-mingw32msvc-"
129     cc="${cross_prefix}gcc"
130     ar="${cross_prefix}ar"
131     grab="no"
132 fi
133
134 # ---
135 # check availability of some header files
136
137 cat > $TMPC << EOF
138 #include <malloc.h>
139 int main( void ) { return 0; }
140 EOF
141
142 _memalign=no
143 _malloc_h=no
144 if $cc -o $TMPO $TMPC 2> /dev/null ; then
145 _malloc_h=yes
146 _memalign=yes
147 # check for memalign - atmos
148 cat > $TMPC << EOF
149 #include <malloc.h>
150 int main ( void ) {
151 char *string = NULL;
152 string = memalign(64, sizeof(char));
153 return 0;
154 }
155 EOF
156 $cc -o $TMPO $TMPC 2> /dev/null || _memalign=no
157 fi
158
159 echo "Install prefix   $prefix"
160 echo "C compiler       $cc"
161 echo "CPU              $cpu"
162 echo "MMX enabled      $mmx"
163 echo "gprof enabled    $gprof"
164 echo "grab enabled     $grab"
165 echo "mp3lame enabled  $mp3lame"
166
167 echo "Creating config.mak and config.h"
168
169 echo "# Automatically generated by configure - do not modify" > config.mak
170 echo "/* Automatically generated by configure - do not modify */" > $TMPH
171
172 echo "prefix=$prefix" >> config.mak
173 echo "MAKE=make" >> config.mak
174 echo "CC=$cc" >> config.mak
175 echo "AR=$ar" >> config.mak
176 echo "OPTFLAGS=$CFLAGS" >> config.mak
177 if [ "$cpu" = "x86" ] ; then
178   echo "TARGET_ARCH_X86=yes" >> config.mak
179   echo "#define ARCH_X86 1" >> $TMPH
180 fi
181 if [ "$cpu" = "armv4l" ]; then
182   echo "TARGET_ARCH_ARMV4L=yes" >> config.mak
183   echo "#define ARCH_ARMV4L 1" >> $TMPH
184 fi
185 if [ "$cpu" = "alpha" ]; then
186   echo "TARGET_ARCH_ALPHA=yes" >> config.mak
187   echo "#define ARCH_ALPHA 1" >> $TMPH
188 fi
189 if [ "$mmx" = "yes" ] ; then
190   echo "TARGET_MMX=yes" >> config.mak
191   echo "#define HAVE_MMX 1" >> $TMPH
192 fi
193 if [ "$gprof" = "yes" ] ; then
194   echo "TARGET_GPROF=yes" >> config.mak
195   echo "#define HAVE_GPROF 1" >> $TMPH
196 fi
197 if [ "$lshared" = "yes" ] ; then
198   echo "BUILD_SHARED=yes" >> config.mak
199 else
200   echo "BUILD_SHARED=no" >> config.mak
201 fi
202 echo "EXTRALIBS=$extralibs" >> config.mak
203 echo -n "VERSION=" >>config.mak
204 head VERSION >>config.mak
205 echo "" >>config.mak
206 # if you do not want to use encoders, disable that.
207 echo "#define CONFIG_ENCODERS 1" >> $TMPH
208 echo "CONFIG_ENCODERS=yes" >> config.mak
209
210 # if you do not want to use decoders, disable that.
211 echo "#define CONFIG_DECODERS 1" >> $TMPH
212 echo "CONFIG_DECODERS=yes" >> config.mak
213
214 # special AC3 stuff in case you already have it
215 # without libavcodec.
216 echo "#define CONFIG_AC3 1" >> $TMPH
217 echo "CONFIG_AC3=yes" >> config.mak
218
219 if [ "$grab" = "yes" ] ; then
220   echo "#define CONFIG_GRAB 1" >> $TMPH
221   echo "CONFIG_GRAB=yes" >> config.mak
222 fi
223
224 if [ "$mp3lame" = "yes" ] ; then
225   echo "#define CONFIG_MP3LAME 1" >> $TMPH
226   echo "CONFIG_MP3LAME=yes" >> config.mak
227 fi
228
229 if [ "$win32" = "yes" ] ; then
230   echo "#define CONFIG_WIN32 1" >> $TMPH
231   echo "CONFIG_WIN32=yes" >> config.mak
232 fi
233
234 if [ "$_malloc_h" = "yes" ]; then
235   echo "#define HAVE_MALLOC_H 1" >> $TMPH
236 else
237   echo "#undef  HAVE_MALLOC_H" >> $TMPH
238 fi
239
240 if [ "$_memalign" = "yes" ]; then
241   echo "#define HAVE_MEMALIGN 1" >> $TMPH
242 else
243   echo "#undef  HAVE_MEMALIGN" >> $TMPH
244 fi
245
246 if [ "$simpleidct" = "yes" ]; then
247   echo "#define SIMPLE_IDCT 1" >> $TMPH
248 fi
249
250 diff -q $TMPH config.h >/dev/null 2>&1
251 if test $? -ne 0 ; then
252         mv -f $TMPH config.h
253 else
254         echo "config.h is unchanged"
255 fi
256
257 rm -f $TMPO $TMPC $TMPS $TMPH