cspace: add forgotten length decrement
[pcsx_rearmed.git] / configure
1 #!/bin/sh
2 # some elements originated from qemu configure
3 set -e
4
5 TMPC="/tmp/pcsx-conf-${RANDOM}-$$-${RANDOM}.c"
6 TMPO="/tmp/pcsx-conf-${RANDOM}-$$-${RANDOM}.o"
7 TMPB="/tmp/pcsx-conf-${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 $MAIN_LDLIBS $@"
21   echo $c >> config.log
22   $c >> config.log 2>&1
23 }
24
25 check_define()
26 {
27   $CC -E -dD $CFLAGS include/arm_features.h | grep -q "$1" || return 1
28   return 0
29 }
30
31 check_define_val()
32 {
33   $CC -E -dD $CFLAGS include/arm_features.h | grep "$1" | awk '{print $3}'
34   return 0
35 }
36
37 # setting options to "yes" or "no" will make that choice default,
38 # "" means "autodetect".
39
40 platform_list="generic pandora maemo caanoo libretro"
41 platform="generic"
42 builtin_gpu_list="peops unai neon senquack"
43 builtin_gpu=""
44 sound_driver_list="oss alsa pulseaudio sdl libretro"
45 sound_drivers=""
46 plugins="plugins/spunull/spunull.so \
47 plugins/dfxvideo/gpu_peops.so plugins/gpu_unai/gpu_unai.so plugins/gpu_senquack/gpu_senquack.so"
48 drc_cache_base="no"
49 have_armv5=""
50 have_armv6=""
51 have_armv7=""
52 have_arm_neon=""
53 have_arm_neon_asm=""
54 have_tslib=""
55 have_gles=""
56 have_c64x_dsp=""
57 enable_dynarec="yes"
58 need_sdl="no"
59 need_xlib="no"
60 need_libpicofe="yes"
61 need_warm="no"
62 CFLAGS_GLES=""
63 LDLIBS_GLES=""
64 # these are for known platforms
65 optimize_cortexa8="no"
66 optimize_arm926ej="no"
67
68 # hardcoded stuff
69 CC="${CC-${CROSS_COMPILE}gcc}"
70 CXX="${CXX-${CROSS_COMPILE}g++}"
71 AS="${AS-${CROSS_COMPILE}as}"
72 AR="${AS-${CROSS_COMPILE}ar}"
73 MAIN_LDLIBS="$LDLIBS -ldl -lm -lpthread"
74 config_mak="config.mak"
75
76 SYSROOT="$(${CC} --print-sysroot)"
77 [ "x${SDL_CONFIG}" = "x" ] && SDL_CONFIG="${SYSROOT}/usr/bin/sdl-config"
78
79 fail()
80 {
81   echo "$@"
82   if test -n "$DUMP_CONFIG_LOG"; then cat config.log; fi
83   exit 1
84 }
85
86 # call during arg parsing, so that cmd line can override platform defaults
87 set_platform()
88 {
89   platform=$1
90   case "$platform" in
91   generic)
92     ;;
93   pandora)
94     sound_drivers="oss alsa"
95     drc_cache_base="yes"
96     optimize_cortexa8="yes"
97     have_arm_neon="yes"
98     need_xlib="yes"
99     ;;
100   maemo)
101     drc_cache_base="yes"
102     optimize_cortexa8="yes"
103     have_arm_neon="yes"
104     ;;
105   caanoo)
106     sound_drivers="oss"
107     drc_cache_base="yes"
108     optimize_arm926ej="yes"
109     need_warm="yes"
110     ;;
111   libretro)
112     sound_drivers="libretro"
113     need_libpicofe="no"
114     ;;
115   *)
116     fail "unsupported platform: $platform"
117     ;;
118   esac
119 }
120
121 for opt do
122   optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'` || true
123   case "$opt" in
124   --help|-h) show_help="yes"
125   ;;
126   --platform=*) set_platform "$optarg"
127   ;;
128   --gpu=*) builtin_gpu="$optarg"
129   ;;
130   --sound-drivers=*) sound_drivers="$optarg"
131   ;;
132   --enable-neon) have_arm_neon="yes"
133   ;;
134   --disable-neon) have_arm_neon="no"
135   ;;
136   --disable-dynarec) enable_dynarec="no"
137   ;;
138   *) echo "ERROR: unknown option $opt"; show_help="yes"
139   ;;
140   esac
141 done
142
143 if [ "$show_help" = "yes" ]; then
144   echo "options:"
145   echo "  --help                   print this message"
146   echo "  --platform=NAME          target platform [$platform]"
147   echo "                           available: $platform_list"
148   echo "  --gpu=NAME               builtin gpu plugin [guessed]"
149   echo "                           available: $builtin_gpu_list"
150   echo "  --sound-drivers=LIST     sound output drivers [guessed]"
151   echo "                           available: $sound_driver_list"
152   echo "  --enable-neon"
153   echo "  --disable-neon           enable/disable ARM NEON optimizations [guessed]"
154   echo "  --disable-dynarec        disable dynamic recompiler"
155   echo "                           (dynarec is only available and enabled on ARM)"
156   echo "  --disable-icache-emu     Disables the instruction cache emulation"
157   echo "influential environment variables:"
158   echo "  CROSS_COMPILE CC CXX AS AR CFLAGS ASFLAGS LDFLAGS LDLIBS"
159   exit 1
160 fi
161
162 # validate selections
163 if [ "x$builtin_gpu" != "x" ]; then
164   if ! echo $builtin_gpu_list | grep -q "\<$builtin_gpu\>"; then
165     fail "unsupported builtin gpu plugin: $builtin_gpu"
166   fi
167 fi
168
169 if [ "x$sound_drivers" != "x" ]; then
170   for d in $sound_drivers; do
171     if ! echo $sound_driver_list | grep -q "\<$d\>"; then
172       fail "unsupported sound driver: $sound_driver"
173     fi
174   done
175 fi
176
177 if [ "$need_libpicofe" = "yes" ]; then
178   if ! test -f "frontend/libpicofe/README"; then
179     fail "libpicofe is missing, please run 'git submodule init && git submodule update'"
180   fi
181 fi
182
183 if [ "$need_warm" = "yes" ]; then
184   if ! test -f "frontend/warm/README"; then
185     fail "wARM is missing, please run 'git submodule init && git submodule update'"
186   fi
187 fi
188
189 # basic compiler test
190 cat > $TMPC <<EOF
191 #include <zlib.h>
192 int main(void) { return 0; }
193 EOF
194 if ! compile_binary; then
195   fail "compiler test failed, please check config.log"
196 fi
197
198 if [ -z "$ARCH" ]; then
199   ARCH=`$CC -dumpmachine | awk -F '-' '{print $1}'`
200 fi
201
202 case "$ARCH" in
203 arm*)
204   # ARM stuff
205   ARCH="arm"
206
207   if [ "$optimize_cortexa8" = "yes" ]; then
208     CFLAGS="$CFLAGS -mcpu=cortex-a8 -mtune=cortex-a8"
209     ASFLAGS="$ASFLAGS -mcpu=cortex-a8"
210   fi
211   if [ "$optimize_arm926ej" = "yes" ]; then
212     CFLAGS="$CFLAGS -mcpu=arm926ej-s -mtune=arm926ej-s"
213     ASFLAGS="$ASFLAGS -mcpu=arm926ej-s -mfloat-abi=softfp"
214   fi
215
216   if [ "x$have_arm_neon" = "x" ]; then
217     # detect NEON from user-supplied cflags to enable neon code
218     have_arm_neon=`check_define __ARM_NEON__ && echo yes` || true
219   fi
220   if [ "x$have_armv7" = "x" ]; then
221     if check_define HAVE_ARMV7; then
222       have_armv7="yes"
223       have_armv6="yes"
224       have_armv5="yes"
225     fi
226   fi
227   if [ "x$have_armv6" = "x" ]; then
228     if check_define HAVE_ARMV6; then
229       have_armv6="yes"
230       have_armv5="yes"
231     fi
232   fi
233   if [ "x$have_armv5" = "x" ]; then
234     have_armv5=`check_define HAVE_ARMV5 && echo yes` || true
235   fi
236
237   if [ "x$builtin_gpu" = "x" ]; then
238     if [ "$have_arm_neon" = "yes" ]; then
239       builtin_gpu="neon"
240     elif [ "$have_armv7" != "yes" ]; then
241       # pre-ARMv7 hardware is usually not fast enough for peops
242       builtin_gpu="unai"
243     else
244       builtin_gpu="peops"
245     fi
246   fi
247
248   # automatically set mfpu and mfloat-abi if they are not set
249   if [ "$have_arm_neon" = "yes" ]; then
250     fpu="neon"
251   elif [ "$have_armv6" = "yes" ]; then
252     fpu="vfp"
253   fi
254   if [ "x$fpu" != "x" ]; then
255     echo "$CFLAGS" | grep -q -- '-mfpu=' || CFLAGS="$CFLAGS -mfpu=$fpu"
256     echo "$ASFLAGS" | grep -q -- '-mfpu=' || ASFLAGS="$ASFLAGS -mfpu=$fpu"
257     floatabi_set_by_gcc=`$CC -v 2>&1 | grep -q -- --with-float= && echo yes` || true
258     if [ "$floatabi_set_by_gcc" != "yes" ]; then
259       echo "$CFLAGS" | grep -q -- '-mfloat-abi=' || CFLAGS="$CFLAGS -mfloat-abi=softfp"
260       echo "$ASFLAGS" | grep -q -- '-mfloat-abi=' || ASFLAGS="$ASFLAGS -mfloat-abi=softfp"
261     fi
262   fi
263
264   # must disable thumb as recompiler can't handle it
265   if check_define __thumb__; then
266     CFLAGS="$CFLAGS -marm"
267   fi
268
269   # warn about common mistakes
270   if [ "$have_armv5" != "yes" ]; then
271     if ! echo "$CFLAGS" | grep -q -- '-mcpu=\|-march='; then
272       echo "Warning: compiling for ARMv4, is that really what you want?"
273       echo "You probably should specify -mcpu= or -march= like this:"
274       echo "  CFLAGS=-march=armv6 ./configure ..."
275     fi
276   fi
277   if [ "$have_arm_neon" = "yes" -a "$have_armv7" != "yes" ]; then
278     echo "Warning: compiling for NEON, but not ARMv7?"
279     echo "You probably want to specify -mcpu= or -march= like this:"
280     echo "  CFLAGS=-march=armv7-a ./configure ..."
281   fi
282   have_arm_neon_asm=$have_arm_neon
283   ;;
284 aarch64)
285   have_arm_neon="yes"
286   have_arm_neon_asm="no"
287   if [ "x$builtin_gpu" = "x" ]; then
288     builtin_gpu="neon"
289   fi
290   ;;
291 *)
292   # dynarec only available on ARM
293   enable_dynarec="no"
294   ;;
295 esac
296
297 if [ "x$builtin_gpu" = "x" ]; then
298   builtin_gpu="peops"
299 fi
300
301 # supposedly we can avoid -fPIC on armv5 for slightly better performace?
302 if [ "$ARCH" != "arm" -o "$have_armv6" = "yes" ]; then
303   PLUGIN_CFLAGS="$PLUGIN_CFLAGS -fPIC"
304 fi
305
306 case "$platform" in
307 generic)
308   need_sdl="yes"
309   ;;
310 maemo)
311   CFLAGS="$CFLAGS -DMAEMO -DMAEMO_CHANGES"
312   ;;
313 libretro)
314   CFLAGS="$CFLAGS -fPIC"
315   MAIN_LDFLAGS="$MAIN_LDFLAGS -shared -Wl,--no-undefined"
316   ;;
317 esac
318
319 # header/library presence tests
320 check_zlib()
321 {
322   cat > $TMPC <<EOF
323   #include <zlib.h>
324   int main(void) { uncompress(0, 0, 0, 0); }
325 EOF
326   compile_binary
327 }
328
329 check_libpng()
330 {
331   cat > $TMPC <<EOF
332   #include <png.h>
333   void main() { png_init_io(0, 0); }
334 EOF
335   compile_binary
336 }
337
338 check_oss()
339 {
340   cat > $TMPC <<EOF
341   #include <sys/soundcard.h>
342   #include <sys/ioctl.h>
343   void main() { int a=0; ioctl(0, SNDCTL_DSP_SETFMT, &a); }
344 EOF
345   compile_binary
346 }
347
348 check_alsa()
349 {
350   cat > $TMPC <<EOF
351   #include <alsa/asoundlib.h>
352   void main() { snd_pcm_open(0, 0, 0, 0); }
353 EOF
354   compile_binary "$@"
355 }
356
357 check_pulseaudio()
358 {
359   cat > $TMPC <<EOF
360   #include <pulse/pulseaudio.h>
361   void main() { pa_threaded_mainloop_new(); }
362 EOF
363   compile_binary "$@"
364 }
365
366 check_sdl()
367 {
368   cat > $TMPC <<EOF
369   #include <SDL.h>
370   void main() { SDL_OpenAudio(0, 0); }
371 EOF
372   compile_binary "$@"
373 }
374
375 check_xlib_headers()
376 {
377   cat > $TMPC <<EOF
378   #include <X11/Xlib.h>
379   void *f() { return XOpenDisplay(0); }
380 EOF
381   compile_object "$@"
382 }
383
384 # see if we have c64_tools for TI C64x DSP
385 check_c64_tools()
386 {
387   cat > $TMPC <<EOF
388   #include <inc_libc64_mini.h>
389   int f() { return dsp_open(); }
390 EOF
391   compile_object "$@"
392 }
393
394 MAIN_LDLIBS="$MAIN_LDLIBS -lz"
395 check_zlib || fail "please install zlib (libz-dev)"
396
397 MAIN_LDLIBS="-lpng $MAIN_LDLIBS"
398 check_libpng || fail "please install libpng (libpng-dev)"
399
400 # find what audio support we can compile
401 if [ "x$sound_drivers" = "x" ]; then
402   if check_oss; then sound_drivers="$sound_drivers oss"; fi
403   if check_alsa -lasound; then
404     sound_drivers="$sound_drivers alsa"
405     MAIN_LDLIBS="-lasound $MAIN_LDLIBS"
406   fi
407   if check_pulseaudio -lpulse; then
408     sound_drivers="$sound_drivers pulseaudio"
409     MAIN_LDLIBS="-lpulse $MAIN_LDLIBS"
410   fi
411   if [ "$need_sdl" = "yes" ] || check_sdl `${SDL_CONFIG} --cflags --libs`; then
412     sound_drivers="$sound_drivers sdl"
413     need_sdl="yes"
414   fi
415 else
416   if echo $sound_drivers | grep -q "\<oss\>"; then
417     check_oss || fail "oss support is missing"
418   fi
419   if echo $sound_drivers | grep -q "\<alsa\>"; then
420     MAIN_LDLIBS="-lasound $MAIN_LDLIBS"
421     check_alsa || fail "please install libasound2-dev"
422   fi
423   if echo $sound_drivers | grep -q "\<pulseaudio\>"; then
424     MAIN_LDLIBS="-lpulse $MAIN_LDLIBS"
425     check_pulseaudio || fail "pulseaudio support is missing"
426   fi
427 fi
428
429 if [ "$need_sdl" = "yes" ]; then
430   which ${SDL_CONFIG} > /dev/null || \
431     fail "sdl-config is missing; please install libsdl (libsdl1.2-dev)"
432   CFLAGS="$CFLAGS `${SDL_CONFIG} --cflags`"
433   MAIN_LDLIBS="`${SDL_CONFIG} --libs` $MAIN_LDLIBS"
434   check_sdl || fail "please install libsdl (libsdl1.2-dev)"
435 fi
436
437 # check for tslib (only headers needed)
438 if [ "x$have_tslib" = "x" ]; then
439   cat > $TMPC <<EOF
440   #include <tslib.h>
441   void test(struct ts_sample sample) {}
442 EOF
443   if compile_object; then
444     have_tslib="yes"
445   else
446     have_tslib="no"
447   fi
448 fi
449
450 # check for VideoCore stuff for Raspberry Pi
451 if [ -d /opt/vc/include -a -d /opt/vc/lib -a "$VIDEOCORE" != "no" ]; then
452   CFLAGS_GLES="$CFLAGS_GLES -I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
453   LDLIBS_GLES="$LDLIBS_GLES -L/opt/vc/lib"
454   if [ -f /opt/vc/lib/libbcm_host.so ]; then
455     LDLIBS_GLES="$LDLIBS_GLES -lbcm_host"
456   fi
457   need_xlib="yes"
458   VIDEOCORE="yes"
459 fi
460
461 # check for GLES headers
462 cat > $TMPC <<EOF
463 #include <GLES/gl.h>
464 #include <EGL/egl.h>
465 int main(void) {
466   return (int)eglGetDisplay( (EGLNativeDisplayType)0 );
467 }
468 EOF
469 if [ "$VIDEOCORE" = "yes" ] && compile_binary $CFLAGS_GLES -lbrcmEGL -lbrcmGLESv2 $LDLIBS_GLES; then
470   have_gles="yes"
471   LDLIBS_GLES="-lbrcmEGL -lbrcmGLESv2 $LDLIBS_GLES"
472 elif compile_binary $CFLAGS_GLES -lEGL -lGLES_CM $LDLIBS_GLES; then
473   have_gles="yes"
474   LDLIBS_GLES="-lEGL -lGLES_CM $LDLIBS_GLES"
475 elif compile_binary $CFLAGS_GLES -lEGL -lGLESv1_CM $LDLIBS_GLES; then
476   have_gles="yes"
477   LDLIBS_GLES="-lEGL -lGLESv1_CM $LDLIBS_GLES"
478 fi
479
480 if check_c64_tools; then
481   have_c64x_dsp="yes"
482 fi
483
484 if [ "$have_gles" = "yes" ]; then
485   plugins="$plugins plugins/gpu-gles/gpu_gles.so"
486 fi
487 if [ "$have_arm_neon" = "yes" -a "$builtin_gpu" != "neon" ]; then
488   plugins="$plugins plugins/gpu_neon/gpu_neon.so"
489 fi
490
491 # check for xlib (only headers needed)
492 if [ "x$need_xlib" = "xyes" ]; then
493   check_xlib_headers || fail "please install libx11-dev"
494 fi
495
496 sizeof_long=`check_define_val __SIZEOF_LONG__`
497 if [ "x$sizeof_long" = "x4" ]; then
498   CFLAGS="$CFLAGS -D_FILE_OFFSET_BITS=64"
499 fi
500
501 cat > $TMPC <<EOF
502 void test(void *f, void *d) { fread(d, 1, 1, f); }
503 EOF
504 if compile_object -Wno-unused-result; then
505   CFLAGS="$CFLAGS -Wno-unused-result"
506 fi
507
508 # short plugin list for display
509 for p in $plugins; do
510   p1=`basename $p`
511   plugins_short="$p1 $plugins_short"
512 done
513
514 # set things that failed to autodetect to "no"
515 test "x$have_armv6" != "x" || have_armv6="no"
516 test "x$have_armv7" != "x" || have_armv7="no"
517 test "x$have_arm_neon" != "x" || have_arm_neon="no"
518 test "x$have_arm_neon_asm" != "x" || have_arm_neon_asm="no"
519 test "x$have_gles" != "x" || have_gles="no"
520 test "x$have_c64x_dsp" != "x" || have_c64x_dsp="no"
521
522 echo "architecture        $ARCH"
523 echo "platform            $platform"
524 echo "built-in GPU        $builtin_gpu"
525 echo "sound drivers       $sound_drivers"
526 echo "plugins             $plugins_short"
527 echo "C compiler          $CC"
528 echo "C compiler flags    $CFLAGS"
529 echo "libraries           $MAIN_LDLIBS"
530 echo "linker flags        $LDFLAGS$MAIN_LDFLAGS"
531 echo "enable dynarec      $enable_dynarec"
532 if [ "$ARCH" = "arm" -o "$ARCH" = "aarch64" ]; then
533   echo "enable ARM NEON     $have_arm_neon"
534 fi
535 if [ "$ARCH" = "arm" ]; then
536   echo "ARMv7 optimizations $have_armv7"
537   echo "TI C64x DSP support $have_c64x_dsp"
538 fi
539 echo "tslib support       $have_tslib"
540 if [ "$platform" = "generic" ]; then
541   echo "OpenGL ES output    $have_gles"
542 fi
543
544 echo "# Automatically generated by configure" > $config_mak
545 printf "# Configured with:" >> $config_mak
546 printf " '%s'" "$0" "$@" >> $config_mak
547 echo >> $config_mak
548
549 echo "CC = $CC" >> $config_mak
550 echo "CXX = $CXX" >> $config_mak
551 echo "AS = $AS" >> $config_mak
552 echo "CFLAGS += $CFLAGS" >> $config_mak
553 echo "ASFLAGS += $ASFLAGS" >> $config_mak
554 echo "LDFLAGS += $LDFLAGS" >> $config_mak
555 echo "MAIN_LDFLAGS += $MAIN_LDFLAGS" >> $config_mak
556 echo "MAIN_LDLIBS += $MAIN_LDLIBS" >> $config_mak
557 echo "PLUGIN_CFLAGS += $PLUGIN_CFLAGS" >> $config_mak
558 echo >> $config_mak
559
560 if [ "$platform" = "libretro" ]; then
561   echo "TARGET = libretro.so" >> $config_mak
562 fi
563 echo "ARCH = $ARCH" >> $config_mak
564 echo "PLATFORM = $platform" >> $config_mak
565 echo "BUILTIN_GPU = $builtin_gpu" >> $config_mak
566 echo "SOUND_DRIVERS = $sound_drivers" >> $config_mak
567 echo "PLUGINS = $plugins" >> $config_mak
568 if [ "$have_arm_neon" = "yes" ]; then
569   echo "HAVE_NEON = 1" >> $config_mak
570 fi
571 if [ "$have_arm_neon_asm" = "yes" ]; then
572   echo "HAVE_NEON_ASM = 1" >> $config_mak
573 fi
574 if [ "$have_tslib" = "yes" ]; then
575   echo "HAVE_TSLIB = 1" >> $config_mak
576 fi
577 if [ "$have_gles" = "yes" ]; then
578   echo "HAVE_GLES = 1" >> $config_mak
579   echo "CFLAGS_GLES = $CFLAGS_GLES" >> $config_mak
580   echo "LDLIBS_GLES = $LDLIBS_GLES" >> $config_mak
581 fi
582 if [ "$enable_dynarec" = "yes" ]; then
583   echo "USE_DYNAREC = 1" >> $config_mak
584 fi
585 if [ "$drc_cache_base" = "yes" ]; then
586   echo "BASE_ADDR_DYNAMIC = 1" >> $config_mak
587 fi
588 if [ "$have_c64x_dsp" = "yes" ]; then
589   echo "HAVE_C64_TOOLS = 1" >> $config_mak
590 fi
591
592 # use pandora's skin (for now)
593 test -e skin || ln -s frontend/pandora/skin skin
594
595 # vim:shiftwidth=2:expandtab