don't do idle log - it's not useful
[picodrive.git] / configure
1 #!/bin/sh
2 # some elements originated from qemu configure
3 set -e
4
5 TMPC="/tmp/picodrive-conf-${RANDOM}-$$-${RANDOM}.c"
6 TMPO="/tmp/picodrive-conf-${RANDOM}-$$-${RANDOM}.o"
7 TMPB="/tmp/picodrive-conf-${RANDOM}-$$-${RANDOM}"
8 trap "rm -f $TMPC $TMPO $TMPB" EXIT INT QUIT TERM
9 rm -f config.log
10
11 compile_object()
12 {
13   c="$CC $CFLAGS -c $TMPC -o $TMPO $@"
14   echo $c >> config.log
15   $c >> config.log 2>&1
16 }
17
18 compile_binary()
19 {
20   c="$CC $CFLAGS $TMPC -o $TMPB $LDFLAGS $@"
21   echo $c >> config.log
22   $c >> config.log 2>&1
23 }
24
25 check_define()
26 {
27   $CC -E -dD $CFLAGS pico/arm_features.h | grep -q $1 || return 1
28   return 0
29 }
30
31 # setting options to "yes" or "no" will make that choice default,
32 # "" means "autodetect".
33
34 platform_list="generic pandora gp2x opendingux rpi1 rpi2"
35 platform="generic"
36 sound_driver_list="oss alsa sdl"
37 sound_drivers=""
38 have_armv5=""
39 have_armv6=""
40 have_armv7=""
41 have_arm_neon=""
42 have_libavcodec=""
43 need_sdl="no"
44 need_xlib="no"
45 # these are for known platforms
46 optimize_cortexa8="no"
47 optimize_cortexa7="no"
48 optimize_arm1176jzf="no"
49 optimize_arm926ej="no"
50 optimize_arm920="no"
51
52 # hardcoded stuff
53 CC="${CC-${CROSS_COMPILE}gcc}"
54 CXX="${CXX-${CROSS_COMPILE}g++}"
55 AS="${AS-${CROSS_COMPILE}as}"
56 STRIP="${STRIP-${CROSS_COMPILE}strip}"
57 test -n "$SDL_CONFIG" || SDL_CONFIG="`$CC --print-sysroot 2> /dev/null || true`/usr/bin/sdl-config"
58 MAIN_LDLIBS="$LDLIBS -lm"
59 config_mak="config.mak"
60
61 fail()
62 {
63   echo "$@"
64   exit 1
65 }
66
67 # call during arg parsing, so that cmd line can override platform defaults
68 set_platform()
69 {
70   platform=$1
71   case "$platform" in
72   rpi1)
73     optimize_arm1176jzf="yes"
74     ;;
75   rpi2)
76     optimize_cortexa7="yes"
77     have_arm_neon="yes"
78     ;;
79   generic)
80     ;;
81   opendingux)
82     sound_drivers="sdl"
83     ;;
84   pandora)
85     sound_drivers="oss alsa"
86     optimize_cortexa8="yes"
87     have_arm_neon="yes"
88     ;;
89   gp2x)
90     sound_drivers="oss"
91     optimize_arm920="yes"
92     CFLAGS="$CFLAGS -D__GP2X__"
93     if [ "$CROSS_COMPILE" = "arm-linux-" ]; then
94       # still using static, dynamic linking slows Wiz 1-10%
95       # also libm on F100 is not compatible
96       MAIN_LDLIBS="$MAIN_LDLIBS -static"
97     fi
98     ;;
99   *)
100     fail "unsupported platform: $platform"
101     ;;
102   esac
103 }
104
105 for opt do
106   optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'` || true
107   case "$opt" in
108   --help|-h) show_help="yes"
109   ;;
110   --platform=*) set_platform "$optarg"
111   ;;
112   --sound-drivers=*) sound_drivers="$optarg"
113   ;;
114   *) echo "ERROR: unknown option $opt"; show_help="yes"
115   ;;
116   esac
117 done
118
119 if [ "$show_help" = "yes" ]; then
120   echo "options:"
121   echo "  --help                   print this message"
122   echo "  --platform=NAME          target platform [$platform]"
123   echo "                           available: $platform_list"
124   echo "  --sound-drivers=LIST     sound output drivers [guessed]"
125   echo "                           available: $sound_driver_list"
126   echo "influential environment variables:"
127   echo "  CROSS_COMPILE CC CXX AS STRIP CFLAGS ASFLAGS LDFLAGS LDLIBS"
128   exit 1
129 fi
130
131 # validate selections
132 if [ "x$sound_drivers" != "x" ]; then
133   for d in $sound_drivers; do
134     if ! echo $sound_driver_list | grep -q "\<$d\>"; then
135       fail "unsupported sound driver: $sound_driver"
136     fi
137   done
138 fi
139
140 if ! test -f "platform/libpicofe/README"; then
141   fail "libpicofe is missing, please run 'git submodule update --init'"
142 fi
143
144 #if [ "$need_warm" = "yes" ]; then
145 #  if ! test -f "frontend/warm/README"; then
146 #    fail "wARM is missing, please run 'git submodule init && git submodule update'"
147 #  fi
148 #fi
149
150 # basic compiler test
151 cat > $TMPC <<EOF
152 int main(void) { return 0; }
153 EOF
154 if ! compile_binary; then
155   fail "compiler test failed, please check config.log"
156 fi
157
158 if [ -z "$ARCH" ]; then
159   ARCH=`$CC -dumpmachine | awk -F '-' '{print $1}'`
160 fi
161
162 case "$ARCH" in
163 arm*)
164   # ARM stuff
165   ARCH="arm"
166
167   if [ "$optimize_cortexa8" = "yes" ]; then
168     CFLAGS="$CFLAGS -mcpu=cortex-a8 -mtune=cortex-a8"
169     ASFLAGS="$ASFLAGS -mcpu=cortex-a8"
170   fi
171   if [ "$optimize_cortexa7" = "yes" ]; then
172     CFLAGS="$CFLAGS -mcpu=cortex-a7"
173     ASFLAGS="$ASFLAGS -mcpu=cortex-a7"
174   fi
175   if [ "$optimize_arm1176jzf" = "yes" ]; then
176     CFLAGS="$CFLAGS -mcpu=arm1176jzf-s -mfloat-abi=hard"
177     ASFLAGS="$ASFLAGS -mcpu=arm1176jzf-s -mfloat-abi=hard"
178   fi
179   if [ "$optimize_arm926ej" = "yes" ]; then
180     CFLAGS="$CFLAGS -mcpu=arm926ej-s -mtune=arm926ej-s"
181     ASFLAGS="$ASFLAGS -mcpu=arm926ej-s -mfloat-abi=softfp"
182   fi
183   if [ "$optimize_arm920" = "yes" ]; then
184     CFLAGS="$CFLAGS -mcpu=arm920t -mtune=arm920t"
185     ASFLAGS="$ASFLAGS -mcpu=arm920t -mfloat-abi=soft"
186   fi
187
188   if [ "x$have_arm_neon" = "x" ]; then
189     # detect NEON from user-supplied cflags to enable asm code
190     have_arm_neon=`check_define __ARM_NEON__ && echo yes` || true
191   fi
192   if [ "x$have_armv7" = "x" ]; then
193     if check_define HAVE_ARMV7; then
194       have_armv7="yes"
195       have_armv6="yes"
196       have_armv5="yes"
197     fi
198   fi
199   if [ "x$have_armv6" = "x" ]; then
200     if check_define HAVE_ARMV6; then
201       have_armv6="yes"
202       have_armv5="yes"
203     fi
204   fi
205   if [ "x$have_armv5" = "x" ]; then
206     have_armv5=`check_define HAVE_ARMV5 && echo yes` || true
207   fi
208
209   # automatically set mfpu and mfloat-abi if they are not set
210   if [ "$have_arm_neon" = "yes" ]; then
211     fpu="neon"
212   elif [ "$have_armv6" = "yes" ]; then
213     fpu="vfp"
214   fi
215   if [ "x$fpu" != "x" ]; then
216     echo "$CFLAGS" | grep -q -- '-mfpu=' || CFLAGS="$CFLAGS -mfpu=$fpu"
217     echo "$ASFLAGS" | grep -q -- '-mfpu=' || ASFLAGS="$ASFLAGS -mfpu=$fpu"
218     floatabi_set_by_gcc=`$CC -v 2>&1 | grep -q -- --with-float= && echo yes` || true
219     if [ "$floatabi_set_by_gcc" != "yes" ]; then
220       echo "$CFLAGS" | grep -q -- '-mfloat-abi=' || CFLAGS="$CFLAGS -mfloat-abi=softfp"
221       echo "$ASFLAGS" | grep -q -- '-mfloat-abi=' || ASFLAGS="$ASFLAGS -mfloat-abi=softfp"
222     fi
223   fi
224
225   # must disable thumb as recompiler can't handle it
226   if check_define __thumb__; then
227     CFLAGS="$CFLAGS -marm"
228   fi
229
230   # warn about common mistakes
231   if [ "$platform" != "gp2x" -a "$have_armv5" != "yes" ]; then
232     if ! echo "$CFLAGS" | grep -q -- '-mcpu=\|-march='; then
233       echo "Warning: compiling for ARMv4, is that really what you want?"
234       echo "You probably should specify -mcpu= or -march= like this:"
235       echo "  CFLAGS=-march=armv6 ./configure ..."
236     fi
237   fi
238   if [ "$have_arm_neon" = "yes" -a "$have_armv7" != "yes" ]; then
239     echo "Warning: compiling for NEON, but not ARMv7?"
240     echo "You probably want to specify -mcpu= or -march= like this:"
241     echo "  CFLAGS=-march=armv7-a ./configure ..."
242   fi
243   ;;
244 *)
245   ;;
246 esac
247
248 case "$platform" in
249 rpi1 | rpi2 | generic | opendingux)
250   need_sdl="yes"
251   ;;
252 esac
253
254 # header/library presence tests
255 check_zlib()
256 {
257   cat > $TMPC <<EOF
258   #include <zlib.h>
259   int main(void) { uncompress(0, 0, 0, 0); }
260 EOF
261   compile_binary "$@"
262 }
263
264 check_libpng()
265 {
266   cat > $TMPC <<EOF
267   #include <png.h>
268   void main() { png_init_io(0, 0); }
269 EOF
270 #  compile_binary
271   compile_object
272 }
273
274 check_oss()
275 {
276   cat > $TMPC <<EOF
277   #include <sys/soundcard.h>
278   #include <sys/ioctl.h>
279   void main() { int a=0; ioctl(0, SNDCTL_DSP_SETFMT, &a); }
280 EOF
281   compile_binary
282 }
283
284 check_alsa()
285 {
286   cat > $TMPC <<EOF
287   #include <alsa/asoundlib.h>
288   void main() { snd_pcm_open(0, 0, 0, 0); }
289 EOF
290   compile_binary "$@"
291 }
292
293 check_sdl()
294 {
295   cat > $TMPC <<EOF
296   #include <SDL.h>
297   void main() { SDL_OpenAudio(0, 0); }
298 EOF
299   compile_binary "$@"
300 }
301
302 check_libavcodec()
303 {
304   cat > $TMPC <<EOF
305   #include <libavcodec/avcodec.h>
306   void main() { avcodec_decode_audio3(0, 0, 0, 0); }
307 EOF
308   compile_object "$@"
309 }
310
311 MAIN_LDLIBS="$MAIN_LDLIBS -lz"
312 check_zlib -lz || fail "please install zlib (libz-dev)"
313
314 MAIN_LDLIBS="-lpng $MAIN_LDLIBS"
315 check_libpng || fail "please install libpng (libpng-dev)"
316
317 if check_libavcodec; then
318   have_libavcodec="yes"
319   # add -ldl if needed
320   case "$MAIN_LDLIBS" in
321     *"-ldl"*) ;;
322     *) MAIN_LDLIBS="-ldl $MAIN_LDLIBS" ;;
323   esac
324 fi
325
326 # find what audio support we can compile
327 if [ "x$sound_drivers" = "x" ]; then
328   if check_oss; then sound_drivers="$sound_drivers oss"; fi
329   if check_alsa -lasound; then
330     sound_drivers="$sound_drivers alsa"
331     MAIN_LDLIBS="-lasound $MAIN_LDLIBS"
332   fi
333   if [ "$need_sdl" = "yes" ] || check_sdl `$SDL_CONFIG --cflags --libs`; then
334     sound_drivers="$sound_drivers sdl"
335     need_sdl="yes"
336   fi
337 else
338   if echo $sound_drivers | grep -q "\<oss\>"; then
339     check_oss || fail "oss support is missing"
340   fi
341   if echo $sound_drivers | grep -q "\<alsa\>"; then
342     MAIN_LDLIBS="-lasound $MAIN_LDLIBS"
343     check_alsa -lasound || fail "please install libasound2-dev"
344   fi
345 fi
346
347 if [ "$need_sdl" = "yes" ]; then
348   [ -x "$SDL_CONFIG" ] || \
349     fail "sdl-config is missing; please install libsdl (libsdl1.2-dev)"
350   CFLAGS="$CFLAGS `$SDL_CONFIG --cflags`"
351   MAIN_LDLIBS="`$SDL_CONFIG --libs` $MAIN_LDLIBS"
352   check_sdl `$SDL_CONFIG --libs` || fail "please install libsdl (libsdl1.2-dev)"
353 fi
354
355 cat > $TMPC <<EOF
356 void test(void *f, void *d) { fread(d, 1, 1, f); }
357 EOF
358 if compile_object -Wno-unused-result; then
359   CFLAGS="$CFLAGS -Wno-unused-result"
360 fi
361
362 # set things that failed to autodetect to "no"
363 test "x$have_armv6" != "x" || have_armv6="no"
364 test "x$have_armv7" != "x" || have_armv7="no"
365 test "x$have_libavcodec" != "x" || have_libavcodec="no"
366
367 echo "architecture        $ARCH"
368 echo "platform            $platform"
369 echo "sound drivers       $sound_drivers"
370 echo "C compiler          $CC"
371 echo "C compiler flags    $CFLAGS"
372 echo "libraries           $MAIN_LDLIBS"
373 echo "linker flags        $LDFLAGS"
374 echo "libavcodec (mp3)    $have_libavcodec"
375 # echo "ARMv7 optimizations $have_armv7"
376
377 echo "# Automatically generated by configure" > $config_mak
378 printf "# Configured with:" >> $config_mak
379 printf " '%s'" "$0" "$@" >> $config_mak
380 echo >> $config_mak
381
382 echo "CC = $CC" >> $config_mak
383 echo "CXX = $CXX" >> $config_mak
384 echo "AS = $AS" >> $config_mak
385 echo "STRIP = $STRIP" >> $config_mak
386 echo "CFLAGS += $CFLAGS" >> $config_mak
387 echo "ASFLAGS += $ASFLAGS" >> $config_mak
388 echo "LDFLAGS += $LDFLAGS" >> $config_mak
389 echo "LDLIBS += $MAIN_LDLIBS" >> $config_mak
390 echo >> $config_mak
391
392 echo "ARCH = $ARCH" >> $config_mak
393 echo "PLATFORM = $platform" >> $config_mak
394 echo "SOUND_DRIVERS = $sound_drivers" >> $config_mak
395 if [ "$have_libavcodec" = "yes" ]; then
396   echo "HAVE_LIBAVCODEC = 1" >> $config_mak
397 fi
398
399 # GP2X toolchains are too old for UAL asm,
400 # so add this here to not litter main Makefile
401 if [ "$platform" = "g1p2x" ]; then
402   echo >> $config_mak
403   echo "%.o: %.S" >> $config_mak
404   echo "        $(CC) $(CFLAGS) -E -c $^ -o /tmp/$(notdir $@).s" >> $config_mak
405   echo "        $(AS) $(ASFLAGS) /tmp/$(notdir $@).s -o $@" >> $config_mak
406 fi
407
408 # use pandora's skin (for now)
409 test -e skin || ln -s platform/pandora/skin skin
410
411 # vim:shiftwidth=2:expandtab