configure.in

   1
   2 AC_INIT(cpu.c)
   3
   4 CFLAGS="$CFLAGS"
   5
   6 AC_PROG_CC
   7 AC_PROG_CPP
   8 AC_PROG_INSTALL
   9
  10
  11 test "$cross_compiling" = "yes" || AC_C_BIGENDIAN
  12 test "$ac_cv_c_bigendian" = "no" && ENDIAN="-DIS_LITTLE_ENDIAN"
  13
  14
  15
  16 AC_CHECK_FUNCS(usleep, ,[
  17 AC_CHECK_FUNCS(select, ,[
  18 AC_MSG_ERROR(your system must support either usleep or select)
  19 ])])
  20
  21
  22
  23
  24 LIBS="$LIBS -L/usr/local/lib -L/usr/X11R6/lib"
  25
  26
  27
  28
  29
  30 AC_ARG_WITH(fb,      [  --with-fb               build framebuffer device interface], [], [with_fb=yes])
  31 AC_ARG_WITH(svgalib, [  --with-svgalib          build Linux svgalib interface], [], [with_svgalib=yes])
  32 AC_ARG_WITH(sdl,     [  --with-sdl              build SDL interface], [], [with_sdl=yes])
  33
  34
  35
  36
  37
  38 SOUND=""
  39 JOY=""
  40
  41 case `uname -s` in
  42 Linux)
  43 SYS_DEFS=-DIS_LINUX
  44 AC_CHECK_HEADERS(sys/soundcard.h, [SOUND=sys/oss/oss.o])
  45 AC_CHECK_HEADERS(linux/joystick.h, [JOY=sys/linux/joy.o])
  46 test "$with_fb" = "no" || AC_CHECK_HEADERS(linux/fb.h, [with_fb=linux])
  47 ;;
  48 FreeBSD)
  49 SYS_DEFS=-DIS_FBSD
  50 AC_CHECK_HEADERS(machine/soundcard.h, [SOUND=sys/oss/oss.o])
  51 ;;
  52 OpenBSD)
  53 SYS_DEFS=-DIS_OBSD
  54 AC_CHECK_HEADERS(soundcard.h, [SOUND=sys/oss/oss.o])
  55 ;;
  56 esac
  57
  58 test "$SOUND" || SOUND=sys/dummy/nosound.o
  59 test "$JOY" || JOY=sys/dummy/nojoy.o
  60
  61
  62
  63
  64
  65
  66 case "$with_fb" in
  67 linux) FB_OBJS="sys/linux/fbdev.o sys/linux/kb.o sys/pc/keymap.o" ;;
  68 *) FB_OBJS="" ; with_fb=no ;;
  69 esac
  70
  71 if test "$with_svgalib" != "no" ; then
  72 AC_CHECK_LIB(vga, vga_init, [
  73 AC_CHECK_HEADERS(vga.h vgakeyboard.h, ,[
  74 AC_MSG_WARN(svgalib found but headers are missing!!)
  75 with_svgalib=no
  76 ])], [with_svgalib=no])
  77 fi
  78
  79 if test "$with_sdl" != "no" ; then
  80 AC_CHECK_PROG(SDL_CONFIG, sdl-config, yes)
  81 if test "$SDL_CONFIG" ; then
  82 SDL_LIBS="`sdl-config --libs`"
  83 SDL_CFLAGS="`sdl-config --cflags`"
  84 old_incs="$INCS"
  85 INCS="$INCS $SDL_CFLAGS"
  86 AC_CHECK_LIB(SDL, SDL_Init, [
  87 AC_CHECK_HEADERS(SDL/SDL.h, ,[
  88 AC_MSG_WARN(SDL found but headers are missing!!)
  89 with_sdl=no
  90 ])], [with_sdl=no], $SDL_LIBS)
  91 INCS="$old_incs"
  92 else
  93 with_sdl=no
  94 fi
  95 fi
  96
  97 AC_PATH_X
  98
  99 if test "$no_x" != "yes" ; then
 100 with_x=yes
 101 AC_CHECK_LIB(Xext, XShmCreateImage)
 102 AC_CHECK_HEADERS(sys/ipc.h sys/shm.h X11/extensions/XShm.h)
 103 test "$x_includes" && XINCS="-I$x_includes"
 104 test "$x_libraries" && XLIBS="-L$x_libraries"
 105 else
 106 with_x=no
 107 fi
 108
 109
 110
 111 test "$with_x" = "no" || TARGETS="$TARGETS xgnuboy"
 112 test "$with_fb" = "no" || TARGETS="$TARGETS fbgnuboy"
 113 test "$with_svgalib" = "no" || TARGETS="$TARGETS sgnuboy"
 114 test "$with_sdl" = "no" || TARGETS="$TARGETS sdlgnuboy"
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125 AC_ARG_ENABLE(warnings, [  --enable-warnings       enable selected compiler warnings], [], [enable_warnings=yes])
 126 AC_ARG_ENABLE(debug,    [  --enable-debug          include debugging symbols], [])
 127 AC_ARG_ENABLE(profile,  [  --enable-profile        enable performance profiling], [])
 128 AC_ARG_ENABLE(arch,     [  --enable-arch           compile for specific host cpu architecture], [], [enable_arch=yes])
 129 AC_ARG_ENABLE(optimize, [  --enable-optimize=LEVEL select optimization level (full,low,none)], [], [enable_optimize=yes])
 130 AC_ARG_ENABLE(asm,      [  --enable-asm            use hand-optimized asm cores], [], [enable_asm=yes])
 131
 132
 133 if test "$enable_warnings" = yes ; then
 134 case "$CC" in *gcc*)
 135 AC_MSG_RESULT(enabling selected compiler warnings)
 136 CFLAGS="$CFLAGS -ansi -pedantic -Wall" ;;
 137 *)
 138 AC_MSG_RESULT(disabling warnings for non-gcc compiler) ;;
 139 esac
 140 fi
 141
 142 if test "$enable_debug" = yes ; then
 143 AC_MSG_RESULT(including debugging symbols)
 144 CFLAGS="$CFLAGS -g"
 145 fi
 146
 147 if test "$enable_profile" = yes ; then
 148 AC_MSG_RESULT(enabling performance profiling)
 149 CFLAGS="$CFLAGS -pg"
 150 fi
 151
 152 if test "$enable_arch" = yes ; then
 153 if test `uname -s` = Linux -a -f /proc/cpuinfo ; then
 154 case `grep "model name" /proc/cpuinfo` in
 155 *AMD-K6*) enable_arch=k6 ;;
 156 *Pentium*Pro*|*Pentium\ I*|*Klamath*) enable_arch=i686 ;;
 157 *Pentium*|*586*) enable_arch=i586 ;;
 158 *486*) enable_arch=i486 ;;
 159 *386*) enable_arch=i386 ;;
 160 *) enable_arch=no ;;
 161 esac
 162 else
 163 enable_arch=no
 164 #case `uname -m` in
 165 #i686) enable_arch=i686 ;;
 166 #i586) enable_arch=i586 ;;
 167 #i486) enable_arch=i486 ;;
 168 #i386) enable_arch=i386 ;;
 169 #*) enable_arch=no ;;
 170 #esac
 171 fi
 172 fi
 173
 174
 175 case `$CC --version` in
 176
 177 2.9*|3.*)
 178
 179 case "$enable_arch" in
 180 k6|i686|i586|i486|i386) CFLAGS="$CFLAGS -march=$enable_arch" ;;
 181 no) ;;
 182 *) AC_MSG_WARN(unknown architecture $enable_arch) ;;
 183 esac ;;
 184
 185 *)
 186
 187 case "$enable_arch" in
 188 k6|i686|i586) AC_MSG_WARN(your compiler is too old to support $enable_arch optimizations) ;;
 189 i486) CFLAGS="$CFLAGS -m486" ;;
 190 i386) CFLAGS="$CFLAGS -m386" ;;
 191 no) ;;
 192 *) AC_MSG_WARN(unknown architecture $enable_arch) ;;
 193 esac ;;
 194
 195 esac
 196
 197
 198 case "$enable_optimize" in
 199 yes|full)
 200 AC_MSG_RESULT(producing heavily optimized code)
 201
 202 CFLAGS="$CFLAGS -O3"
 203
 204 case `uname -m` in
 205 i?86) CFLAGS="$CFLAGS -DALLOW_UNALIGNED_IO" ;;
 206 esac
 207
 208 #case `$CC --version` in
 209 #2.9*|3.*)
 210 CFLAGS="$CFLAGS -fstrength-reduce -fthread-jumps \
 211  -fcse-follow-jumps -fcse-skip-blocks -frerun-cse-after-loop \
 212  -fexpensive-optimizations -fforce-addr"
 213 #;;
 214 #*)
 215 #AC_MSG_WARN(your compiler is too old for fancy optimizations)
 216 #;;
 217 #esac
 218
 219 if test "$enable_debug" != yes -a "$enable_profile" != yes ; then
 220 CFLAGS="$CFLAGS -fomit-frame-pointer"
 221 LDFLAGS="$LDFLAGS -s"
 222 fi ;;
 223
 224 low)
 225
 226 AC_MSG_RESULT(using minimal optimizations)
 227 CFLAGS="$CFLAGS -O3" ;;
 228
 229 esac
 230
 231 if test "$enable_asm" = yes ; then
 232 case `uname -m` in
 233 i?86)
 234 AC_MSG_RESULT(using optimized i386 cores)
 235 ASM="-DUSE_ASM -I./asm/i386" ; ASM_OBJS="asm/i386/cpu.o asm/i386/lcd.o asm/i386/refresh.s" ;;
 236 *)
 237 AC_MSG_RESULT(no optimized asm core available for `uname -m`) ;;
 238 esac
 239 fi
 240
 241
 242 AC_SUBST(SYS_DEFS)
 243 AC_SUBST(ENDIAN)
 244 AC_SUBST(SOUND)
 245 AC_SUBST(JOY)
 246 AC_SUBST(ASM)
 247 AC_SUBST(ASM_OBJS)
 248 AC_SUBST(FB_OBJS)
 249 AC_SUBST(SDL_CFLAGS)
 250 AC_SUBST(SDL_LIBS)
 251 AC_SUBST(TARGETS)
 252 AC_SUBST(XINCS)
 253 AC_SUBST(XLIBS)
 254
 255 AC_CONFIG_HEADER(sys/nix/config.h)
 256 AC_OUTPUT(Makefile)
 257
 258
 259