sim/common/acinclude.m4

   1 # This file contains common code used by all simulators.
   2 #
   3 # SIM_AC_COMMON invokes AC macros used by all simulators and by the common
   4 # directory.  It is intended to be invoked before any target specific stuff.
   5 # SIM_AC_OUTPUT is a cover function to AC_OUTPUT to generate the Makefile.
   6 # It is intended to be invoked last.
   7 #
   8 # The simulator's configure.in should look like:
   9 #
  10 # dnl Process this file with autoconf to produce a configure script.
  11 # AC_PREREQ(2.64)dnl
  12 # AC_INIT(Makefile.in)
  13 # sinclude(../common/aclocal.m4)
  14 #
  15 # SIM_AC_COMMON
  16 #
  17 # ... target specific stuff ...
  18 #
  19 # SIM_AC_OUTPUT
  20
  21 # Include global overrides and fixes for Autoconf.
  22 m4_include(../../config/override.m4)
  23 sinclude([../../config/zlib.m4])
  24
  25 AC_DEFUN([SIM_AC_COMMON],
  26 [
  27 AC_REQUIRE([AC_PROG_CC])
  28 # autoconf.info says this should be called right after AC_INIT.
  29 AC_CONFIG_HEADER(ifelse([$1],,config.h,[$1]):config.in)
  30 AC_CANONICAL_SYSTEM
  31 AC_ARG_PROGRAM
  32 AC_PROG_INSTALL
  33
  34 # Put a plausible default for CC_FOR_BUILD in Makefile.
  35 if test "x$cross_compiling" = "xno"; then
  36   CC_FOR_BUILD='$(CC)'
  37 else
  38   CC_FOR_BUILD=gcc
  39 fi
  40 AC_SUBST(CC_FOR_BUILD)
  41
  42 AC_SUBST(CFLAGS)
  43 AC_SUBST(HDEFINES)
  44 AR=${AR-ar}
  45 AC_SUBST(AR)
  46 AC_PROG_RANLIB
  47
  48 dnl We don't use gettext, but bfd does.  So we do the appropriate checks
  49 dnl to see if there are intl libraries we should link against.
  50 ALL_LINGUAS=
  51 ZW_GNU_GETTEXT_SISTER_DIR(../../intl)
  52
  53 # Check for common headers.
  54 # FIXME: Seems to me this can cause problems for i386-windows hosts.
  55 # At one point there were hardcoded AC_DEFINE's if ${host} = i386-*-windows*.
  56 AC_CHECK_HEADERS(stdlib.h string.h strings.h unistd.h time.h)
  57 AC_CHECK_HEADERS(sys/time.h sys/resource.h)
  58 AC_CHECK_HEADERS(fcntl.h fpu_control.h)
  59 AC_CHECK_HEADERS(dlfcn.h errno.h sys/stat.h)
  60 AC_CHECK_FUNCS(getrusage time sigaction __setfpucw)
  61
  62 # Check for socket libraries
  63 AC_CHECK_LIB(socket, bind)
  64 AC_CHECK_LIB(nsl, gethostbyname)
  65
  66 # BFD conditionally uses zlib, so we must link it in if libbfd does, by
  67 # using the same condition.
  68 AM_ZLIB
  69
  70 . ${srcdir}/../../bfd/configure.host
  71
  72 dnl Standard (and optional) simulator options.
  73 dnl Eventually all simulators will support these.
  74 dnl Do not add any here that cannot be supported by all simulators.
  75 dnl Do not add similar but different options to a particular simulator,
  76 dnl all shall eventually behave the same way.
  77
  78
  79 dnl We don't use automake, but we still want to support
  80 dnl --enable-maintainer-mode.
  81 USE_MAINTAINER_MODE=no
  82 AC_ARG_ENABLE(maintainer-mode,
  83 [  --enable-maintainer-mode             Enable developer functionality.],
  84 [case "${enableval}" in
  85   yes)  MAINT="" USE_MAINTAINER_MODE=yes ;;
  86   no)   MAINT="#" ;;
  87   *)    AC_MSG_ERROR("--enable-maintainer-mode does not take a value"); MAINT="#" ;;
  88 esac
  89 if test x"$silent" != x"yes" && test x"$MAINT" = x""; then
  90   echo "Setting maintainer mode" 6>&1
  91 fi],[MAINT="#"])dnl
  92 AC_SUBST(MAINT)
  93
  94
  95 dnl This is a generic option to enable special byte swapping
  96 dnl insns on *any* cpu.
  97 AC_ARG_ENABLE(sim-bswap,
  98 [  --enable-sim-bswap                   Use Host specific BSWAP instruction.],
  99 [case "${enableval}" in
 100   yes)  sim_bswap="-DWITH_BSWAP=1 -DUSE_BSWAP=1";;
 101   no)   sim_bswap="-DWITH_BSWAP=0";;
 102   *)    AC_MSG_ERROR("--enable-sim-bswap does not take a value"); sim_bswap="";;
 103 esac
 104 if test x"$silent" != x"yes" && test x"$sim_bswap" != x""; then
 105   echo "Setting bswap flags = $sim_bswap" 6>&1
 106 fi],[sim_bswap=""])dnl
 107 AC_SUBST(sim_bswap)
 108
 109
 110 AC_ARG_ENABLE(sim-cflags,
 111 [  --enable-sim-cflags=opts             Extra CFLAGS for use in building simulator],
 112 [case "${enableval}" in
 113   yes)   sim_cflags="-O2 -fomit-frame-pointer";;
 114   trace) AC_MSG_ERROR("Please use --enable-sim-debug instead."); sim_cflags="";;
 115   no)    sim_cflags="";;
 116   *)     sim_cflags=`echo "${enableval}" | sed -e "s/,/ /g"`;;
 117 esac
 118 if test x"$silent" != x"yes" && test x"$sim_cflags" != x""; then
 119   echo "Setting sim cflags = $sim_cflags" 6>&1
 120 fi],[sim_cflags=""])dnl
 121 AC_SUBST(sim_cflags)
 122
 123
 124 dnl --enable-sim-debug is for developers of the simulator
 125 dnl the allowable values are work-in-progress
 126 AC_ARG_ENABLE(sim-debug,
 127 [  --enable-sim-debug=opts              Enable debugging flags],
 128 [case "${enableval}" in
 129   yes) sim_debug="-DDEBUG=7 -DWITH_DEBUG=7";;
 130   no)  sim_debug="-DDEBUG=0 -DWITH_DEBUG=0";;
 131   *)   sim_debug="-DDEBUG='(${enableval})' -DWITH_DEBUG='(${enableval})'";;
 132 esac
 133 if test x"$silent" != x"yes" && test x"$sim_debug" != x""; then
 134   echo "Setting sim debug = $sim_debug" 6>&1
 135 fi],[sim_debug=""])dnl
 136 AC_SUBST(sim_debug)
 137
 138
 139 dnl --enable-sim-stdio is for users of the simulator
 140 dnl It determines if IO from the program is routed through STDIO (buffered)
 141 AC_ARG_ENABLE(sim-stdio,
 142 [  --enable-sim-stdio                   Specify whether to use stdio for console input/output.],
 143 [case "${enableval}" in
 144   yes)  sim_stdio="-DWITH_STDIO=DO_USE_STDIO";;
 145   no)   sim_stdio="-DWITH_STDIO=DONT_USE_STDIO";;
 146   *)    AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-stdio"); sim_stdio="";;
 147 esac
 148 if test x"$silent" != x"yes" && test x"$sim_stdio" != x""; then
 149   echo "Setting stdio flags = $sim_stdio" 6>&1
 150 fi],[sim_stdio=""])dnl
 151 AC_SUBST(sim_stdio)
 152
 153
 154 dnl --enable-sim-trace is for users of the simulator
 155 dnl The argument is either a bitmask of things to enable [exactly what is
 156 dnl up to the simulator], or is a comma separated list of names of tracing
 157 dnl elements to enable.  The latter is only supported on simulators that
 158 dnl use WITH_TRACE.
 159 AC_ARG_ENABLE(sim-trace,
 160 [  --enable-sim-trace=opts              Enable tracing flags],
 161 [case "${enableval}" in
 162   yes)  sim_trace="-DTRACE=1 -DWITH_TRACE=-1";;
 163   no)   sim_trace="-DTRACE=0 -DWITH_TRACE=0";;
 164   [[-0-9]]*)
 165         sim_trace="-DTRACE='(${enableval})' -DWITH_TRACE='(${enableval})'";;
 166   [[a-z]]*)
 167         sim_trace=""
 168         for x in `echo "$enableval" | sed -e "s/,/ /g"`; do
 169           if test x"$sim_trace" = x; then
 170             sim_trace="-DWITH_TRACE='(TRACE_$x"
 171           else
 172             sim_trace="${sim_trace}|TRACE_$x"
 173           fi
 174         done
 175         sim_trace="$sim_trace)'" ;;
 176 esac
 177 if test x"$silent" != x"yes" && test x"$sim_trace" != x""; then
 178   echo "Setting sim trace = $sim_trace" 6>&1
 179 fi],[sim_trace=""])dnl
 180 AC_SUBST(sim_trace)
 181
 182
 183 dnl --enable-sim-profile
 184 dnl The argument is either a bitmask of things to enable [exactly what is
 185 dnl up to the simulator], or is a comma separated list of names of profiling
 186 dnl elements to enable.  The latter is only supported on simulators that
 187 dnl use WITH_PROFILE.
 188 AC_ARG_ENABLE(sim-profile,
 189 [  --enable-sim-profile=opts            Enable profiling flags],
 190 [case "${enableval}" in
 191   yes)  sim_profile="-DPROFILE=1 -DWITH_PROFILE=-1";;
 192   no)   sim_profile="-DPROFILE=0 -DWITH_PROFILE=0";;
 193   [[-0-9]]*)
 194         sim_profile="-DPROFILE='(${enableval})' -DWITH_PROFILE='(${enableval})'";;
 195   [[a-z]]*)
 196         sim_profile=""
 197         for x in `echo "$enableval" | sed -e "s/,/ /g"`; do
 198           if test x"$sim_profile" = x; then
 199             sim_profile="-DWITH_PROFILE='(PROFILE_$x"
 200           else
 201             sim_profile="${sim_profile}|PROFILE_$x"
 202           fi
 203         done
 204         sim_profile="$sim_profile)'" ;;
 205 esac
 206 if test x"$silent" != x"yes" && test x"$sim_profile" != x""; then
 207   echo "Setting sim profile = $sim_profile" 6>&1
 208 fi],[sim_profile="-DPROFILE=1 -DWITH_PROFILE=-1"])dnl
 209 AC_SUBST(sim_profile)
 210
 211 ACX_PKGVERSION([GDB])
 212 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
 213 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
 214 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
 215
 216 dnl Types used by common code
 217 AC_TYPE_SIGNAL
 218
 219 dnl Detect exe extension
 220 AC_EXEEXT
 221
 222 dnl These are available to append to as desired.
 223 sim_link_files=
 224 sim_link_links=
 225
 226 dnl Create tconfig.h either from simulator's tconfig.in or default one
 227 dnl in common.
 228 sim_link_links=tconfig.h
 229 if test -f ${srcdir}/tconfig.in
 230 then
 231   sim_link_files=tconfig.in
 232 else
 233   sim_link_files=../common/tconfig.in
 234 fi
 235
 236 # targ-vals.def points to the libc macro description file.
 237 case "${target}" in
 238 *-*-*) TARG_VALS_DEF=../common/nltvals.def ;;
 239 esac
 240 sim_link_files="${sim_link_files} ${TARG_VALS_DEF}"
 241 sim_link_links="${sim_link_links} targ-vals.def"
 242
 243 ]) dnl End of SIM_AC_COMMON
 244
 245
 246 dnl Additional SIM options that can (optionally) be configured
 247 dnl For optional simulator options, a macro SIM_AC_OPTION_* is defined.
 248 dnl Simulators that wish to use the relevant option specify the macro
 249 dnl in the simulator specific configure.in file between the SIM_AC_COMMON
 250 dnl and SIM_AC_OUTPUT lines.
 251
 252
 253 dnl Specify the running environment.
 254 dnl If the simulator invokes this in its configure.in then without this option
 255 dnl the default is the user environment and all are runtime selectable.
 256 dnl If the simulator doesn't invoke this, only the user environment is
 257 dnl supported.
 258 dnl ??? Until there is demonstrable value in doing something more complicated,
 259 dnl let's not.
 260 AC_DEFUN([SIM_AC_OPTION_ENVIRONMENT],
 261 [
 262 AC_ARG_ENABLE(sim-environment,
 263 [  --enable-sim-environment=environment Specify mixed, user, virtual or operating environment.],
 264 [case "${enableval}" in
 265   all | ALL)             sim_environment="-DWITH_ENVIRONMENT=ALL_ENVIRONMENT";;
 266   user | USER)           sim_environment="-DWITH_ENVIRONMENT=USER_ENVIRONMENT";;
 267   virtual | VIRTUAL)     sim_environment="-DWITH_ENVIRONMENT=VIRTUAL_ENVIRONMENT";;
 268   operating | OPERATING) sim_environment="-DWITH_ENVIRONMENT=OPERATING_ENVIRONMENT";;
 269   *)   AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-environment");
 270        sim_environment="";;
 271 esac
 272 if test x"$silent" != x"yes" && test x"$sim_environment" != x""; then
 273   echo "Setting sim environment = $sim_environment" 6>&1
 274 fi],
 275 [sim_environment="-DWITH_ENVIRONMENT=ALL_ENVIRONMENT"])dnl
 276 ])
 277 AC_SUBST(sim_environment)
 278
 279
 280 dnl Specify the alignment restrictions of the target architecture.
 281 dnl Without this option all possible alignment restrictions are accommodated.
 282 dnl arg[1] is hardwired target alignment
 283 dnl arg[2] is default target alignment
 284 AC_DEFUN([SIM_AC_OPTION_ALIGNMENT],
 285 wire_alignment="[$1]"
 286 default_alignment="[$2]"
 287 [
 288 AC_ARG_ENABLE(sim-alignment,
 289 [  --enable-sim-alignment=align         Specify strict,  nonstrict or forced alignment of memory accesses.],
 290 [case "${enableval}" in
 291   strict | STRICT)       sim_alignment="-DWITH_ALIGNMENT=STRICT_ALIGNMENT";;
 292   nonstrict | NONSTRICT) sim_alignment="-DWITH_ALIGNMENT=NONSTRICT_ALIGNMENT";;
 293   forced | FORCED)       sim_alignment="-DWITH_ALIGNMENT=FORCED_ALIGNMENT";;
 294   yes) if test x"$wire_alignment" != x; then
 295          sim_alignment="-DWITH_ALIGNMENT=${wire_alignment}"
 296        else
 297          if test x"$default_alignment" != x; then
 298            sim_alignment="-DWITH_ALIGNMENT=${default_alignment}"
 299          else
 300            echo "No hard-wired alignment for target $target" 1>&6
 301            sim_alignment="-DWITH_ALIGNMENT=0"
 302          fi
 303        fi;;
 304   no)  if test x"$default_alignment" != x; then
 305          sim_alignment="-DWITH_DEFAULT_ALIGNMENT=${default_alignment}"
 306        else
 307          if test x"$wire_alignment" != x; then
 308            sim_alignment="-DWITH_DEFAULT_ALIGNMENT=${wire_alignment}"
 309          else
 310            echo "No default alignment for target $target" 1>&6
 311            sim_alignment="-DWITH_DEFAULT_ALIGNMENT=0"
 312          fi
 313        fi;;
 314   *)   AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-alignment"); sim_alignment="";;
 315 esac
 316 if test x"$silent" != x"yes" && test x"$sim_alignment" != x""; then
 317   echo "Setting alignment flags = $sim_alignment" 6>&1
 318 fi],
 319 [if test x"$default_alignment" != x; then
 320   sim_alignment="-DWITH_DEFAULT_ALIGNMENT=${default_alignment}"
 321 else
 322   if test x"$wire_alignment" != x; then
 323     sim_alignment="-DWITH_ALIGNMENT=${wire_alignment}"
 324   else
 325     sim_alignment=
 326   fi
 327 fi])dnl
 328 ])dnl
 329 AC_SUBST(sim_alignment)
 330
 331
 332 dnl Conditionally compile in assertion statements.
 333 AC_DEFUN([SIM_AC_OPTION_ASSERT],
 334 [
 335 AC_ARG_ENABLE(sim-assert,
 336 [  --enable-sim-assert                  Specify whether to perform random assertions.],
 337 [case "${enableval}" in
 338   yes)  sim_assert="-DWITH_ASSERT=1";;
 339   no)   sim_assert="-DWITH_ASSERT=0";;
 340   *)    AC_MSG_ERROR("--enable-sim-assert does not take a value"); sim_assert="";;
 341 esac
 342 if test x"$silent" != x"yes" && test x"$sim_assert" != x""; then
 343   echo "Setting assert flags = $sim_assert" 6>&1
 344 fi],[sim_assert=""])dnl
 345 ])
 346 AC_SUBST(sim_assert)
 347
 348
 349
 350 dnl --enable-sim-bitsize is for developers of the simulator
 351 dnl It specifies the number of BITS in the target.
 352 dnl arg[1] is the number of bits in a word
 353 dnl arg[2] is the number assigned to the most significant bit
 354 dnl arg[3] is the number of bits in an address
 355 dnl arg[4] is the number of bits in an OpenFirmware cell.
 356 dnl FIXME: this information should be obtained from bfd/archure
 357 AC_DEFUN([SIM_AC_OPTION_BITSIZE],
 358 wire_word_bitsize="[$1]"
 359 wire_word_msb="[$2]"
 360 wire_address_bitsize="[$3]"
 361 wire_cell_bitsize="[$4]"
 362 [AC_ARG_ENABLE(sim-bitsize,
 363 [  --enable-sim-bitsize=N               Specify target bitsize (32 or 64).],
 364 [sim_bitsize=
 365 case "${enableval}" in
 366   64,63 | 64,63,* ) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=64 -DWITH_TARGET_WORD_MSB=63";;
 367   32,31 | 32,31,* ) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=31";;
 368   64,0 | 64,0,* ) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=0";;
 369   32,0 | 64,0,* ) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=0";;
 370   32) if test x"$wire_word_msb" != x -a x"$wire_word_msb" != x0; then
 371         sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=31"
 372       else
 373         sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=0"
 374       fi ;;
 375   64) if test x"$wire_word_msb" != x -a x"$wire_word_msb" != x0; then
 376         sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=64 -DWITH_TARGET_WORD_MSB=63"
 377       else
 378         sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=64 -DWITH_TARGET_WORD_MSB=0"
 379       fi ;;
 380   *)  AC_MSG_ERROR("--enable-sim-bitsize was given $enableval.  Expected 32 or 64") ;;
 381 esac
 382 # address bitsize
 383 tmp=`echo "${enableval}" | sed -e "s/^[[0-9]]*,*[[0-9]]*,*//"`
 384 case x"${tmp}" in
 385   x ) ;;
 386   x32 | x32,* ) sim_bitsize="${sim_bitsize} -DWITH_TARGET_ADDRESS_BITSIZE=32" ;;
 387   x64 | x64,* ) sim_bitsize="${sim_bitsize} -DWITH_TARGET_ADDRESS_BITSIZE=64" ;;
 388   * ) AC_MSG_ERROR("--enable-sim-bitsize was given address size $enableval.  Expected 32 or 64") ;;
 389 esac
 390 # cell bitsize
 391 tmp=`echo "${enableval}" | sed -e "s/^[[0-9]]*,*[[0-9*]]*,*[[0-9]]*,*//"`
 392 case x"${tmp}" in
 393   x ) ;;
 394   x32 | x32,* ) sim_bitsize="${sim_bitsize} -DWITH_TARGET_CELL_BITSIZE=32" ;;
 395   x64 | x64,* ) sim_bitsize="${sim_bitsize} -DWITH_TARGET_CELL_BITSIZE=64" ;;
 396   * ) AC_MSG_ERROR("--enable-sim-bitsize was given cell size $enableval.  Expected 32 or 64") ;;
 397 esac
 398 if test x"$silent" != x"yes" && test x"$sim_bitsize" != x""; then
 399   echo "Setting bitsize flags = $sim_bitsize" 6>&1
 400 fi],
 401 [sim_bitsize=""
 402 if test x"$wire_word_bitsize" != x; then
 403   sim_bitsize="$sim_bitsize -DWITH_TARGET_WORD_BITSIZE=$wire_word_bitsize"
 404 fi
 405 if test x"$wire_word_msb" != x; then
 406   sim_bitsize="$sim_bitsize -DWITH_TARGET_WORD_MSB=$wire_word_msb"
 407 fi
 408 if test x"$wire_address_bitsize" != x; then
 409   sim_bitsize="$sim_bitsize -DWITH_TARGET_ADDRESS_BITSIZE=$wire_address_bitsize"
 410 fi
 411 if test x"$wire_cell_bitsize" != x; then
 412   sim_bitsize="$sim_bitsize -DWITH_TARGET_CELL_BITSIZE=$wire_cell_bitsize"
 413 fi])dnl
 414 ])
 415 AC_SUBST(sim_bitsize)
 416
 417
 418
 419 dnl --enable-sim-endian={yes,no,big,little} is for simulators
 420 dnl that support both big and little endian targets.
 421 dnl arg[1] is hardwired target endianness.
 422 dnl arg[2] is default target endianness.
 423 AC_DEFUN([SIM_AC_OPTION_ENDIAN],
 424 [
 425 wire_endian="[$1]"
 426 default_endian="[$2]"
 427 AC_ARG_ENABLE(sim-endian,
 428 [  --enable-sim-endian=endian           Specify target byte endian orientation.],
 429 [case "${enableval}" in
 430   b*|B*) sim_endian="-DWITH_TARGET_BYTE_ORDER=BIG_ENDIAN";;
 431   l*|L*) sim_endian="-DWITH_TARGET_BYTE_ORDER=LITTLE_ENDIAN";;
 432   yes)   if test x"$wire_endian" != x; then
 433            sim_endian="-DWITH_TARGET_BYTE_ORDER=${wire_endian}"
 434          else
 435            if test x"$default_endian" != x; then
 436              sim_endian="-DWITH_TARGET_BYTE_ORDER=${default_endian}"
 437            else
 438              echo "No hard-wired endian for target $target" 1>&6
 439              sim_endian="-DWITH_TARGET_BYTE_ORDER=0"
 440            fi
 441          fi;;
 442   no)    if test x"$default_endian" != x; then
 443            sim_endian="-DWITH_DEFAULT_TARGET_BYTE_ORDER=${default_endian}"
 444          else
 445            if test x"$wire_endian" != x; then
 446              sim_endian="-DWITH_DEFAULT_TARGET_BYTE_ORDER=${wire_endian}"
 447            else
 448              echo "No default endian for target $target" 1>&6
 449              sim_endian="-DWITH_DEFAULT_TARGET_BYTE_ORDER=0"
 450            fi
 451          fi;;
 452   *)     AC_MSG_ERROR("Unknown value $enableval for --enable-sim-endian"); sim_endian="";;
 453 esac
 454 if test x"$silent" != x"yes" && test x"$sim_endian" != x""; then
 455   echo "Setting endian flags = $sim_endian" 6>&1
 456 fi],
 457 [if test x"$default_endian" != x; then
 458   sim_endian="-DWITH_DEFAULT_TARGET_BYTE_ORDER=${default_endian}"
 459 else
 460   if test x"$wire_endian" != x; then
 461     sim_endian="-DWITH_TARGET_BYTE_ORDER=${wire_endian}"
 462   else
 463     sim_endian=
 464   fi
 465 fi])dnl
 466 ])
 467 AC_SUBST(sim_endian)
 468
 469
 470 dnl --enable-sim-hostendian is for users of the simulator when
 471 dnl they find that AC_C_BIGENDIAN does not function correctly
 472 dnl (for instance in a canadian cross)
 473 AC_DEFUN([SIM_AC_OPTION_HOSTENDIAN],
 474 [
 475 AC_ARG_ENABLE(sim-hostendian,
 476 [  --enable-sim-hostendian=end          Specify host byte endian orientation.],
 477 [case "${enableval}" in
 478   no)    sim_hostendian="-DWITH_HOST_BYTE_ORDER=0";;
 479   b*|B*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN";;
 480   l*|L*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN";;
 481   *)     AC_MSG_ERROR("Unknown value $enableval for --enable-sim-hostendian"); sim_hostendian="";;
 482 esac
 483 if test x"$silent" != x"yes" && test x"$sim_hostendian" != x""; then
 484   echo "Setting hostendian flags = $sim_hostendian" 6>&1
 485 fi],[
 486 if test "x$cross_compiling" = "xno"; then
 487   AC_C_BIGENDIAN
 488   if test $ac_cv_c_bigendian = yes; then
 489     sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN"
 490   else
 491     sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN"
 492   fi
 493 else
 494   sim_hostendian="-DWITH_HOST_BYTE_ORDER=0"
 495 fi])dnl
 496 ])
 497 AC_SUBST(sim_hostendian)
 498
 499
 500 dnl --enable-sim-float is for developers of the simulator
 501 dnl It specifies the presence of hardware floating point
 502 dnl And optionally the bitsize of the floating point register.
 503 dnl arg[1] specifies the presence (or absence) of floating point hardware
 504 dnl arg[2] specifies the number of bits in a floating point register
 505 AC_DEFUN([SIM_AC_OPTION_FLOAT],
 506 [
 507 default_sim_float="[$1]"
 508 default_sim_float_bitsize="[$2]"
 509 AC_ARG_ENABLE(sim-float,
 510 [  --enable-sim-float                   Specify that the target processor has floating point hardware.],
 511 [case "${enableval}" in
 512   yes | hard)   sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT";;
 513   no | soft)    sim_float="-DWITH_FLOATING_POINT=SOFT_FLOATING_POINT";;
 514   32)           sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT -DWITH_TARGET_FLOATING_POINT_BITSIZE=32";;
 515   64)           sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT -DWITH_TARGET_FLOATING_POINT_BITSIZE=64";;
 516   *)            AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-float"); sim_float="";;
 517 esac
 518 if test x"$silent" != x"yes" && test x"$sim_float" != x""; then
 519   echo "Setting float flags = $sim_float" 6>&1
 520 fi],[
 521 sim_float=
 522 if test x"${default_sim_float}" != x""; then
 523   sim_float="-DWITH_FLOATING_POINT=${default_sim_float}"
 524 fi
 525 if test x"${default_sim_float_bitsize}" != x""; then
 526   sim_float="$sim_float -DWITH_TARGET_FLOATING_POINT_BITSIZE=${default_sim_float_bitsize}"
 527 fi
 528 ])dnl
 529 ])
 530 AC_SUBST(sim_float)
 531
 532
 533 dnl The argument is the default cache size if none is specified.
 534 AC_DEFUN([SIM_AC_OPTION_SCACHE],
 535 [
 536 default_sim_scache="ifelse([$1],,0,[$1])"
 537 AC_ARG_ENABLE(sim-scache,
 538 [  --enable-sim-scache=size             Specify simulator execution cache size.],
 539 [case "${enableval}" in
 540   yes)  sim_scache="-DWITH_SCACHE=${default_sim_scache}";;
 541   no)   sim_scache="-DWITH_SCACHE=0" ;;
 542   [[0-9]]*) sim_scache="-DWITH_SCACHE=${enableval}";;
 543   *)    AC_MSG_ERROR("Bad value $enableval passed to --enable-sim-scache");
 544         sim_scache="";;
 545 esac
 546 if test x"$silent" != x"yes" && test x"$sim_scache" != x""; then
 547   echo "Setting scache size = $sim_scache" 6>&1
 548 fi],[sim_scache="-DWITH_SCACHE=${default_sim_scache}"])
 549 ])
 550 AC_SUBST(sim_scache)
 551
 552
 553 dnl The argument is the default model if none is specified.
 554 AC_DEFUN([SIM_AC_OPTION_DEFAULT_MODEL],
 555 [
 556 default_sim_default_model="ifelse([$1],,0,[$1])"
 557 AC_ARG_ENABLE(sim-default-model,
 558 [  --enable-sim-default-model=model     Specify default model to simulate.],
 559 [case "${enableval}" in
 560   yes|no) AC_MSG_ERROR("Missing argument to --enable-sim-default-model");;
 561   *)    sim_default_model="-DWITH_DEFAULT_MODEL='\"${enableval}\"'";;
 562 esac
 563 if test x"$silent" != x"yes" && test x"$sim_default_model" != x""; then
 564   echo "Setting default model = $sim_default_model" 6>&1
 565 fi],[sim_default_model="-DWITH_DEFAULT_MODEL='\"${default_sim_default_model}\"'"])
 566 ])
 567 AC_SUBST(sim_default_model)
 568
 569
 570 dnl --enable-sim-hardware is for users of the simulator
 571 dnl arg[1] Enable sim-hw by default? ("yes" or "no")
 572 dnl arg[2] is a space separated list of devices that override the defaults
 573 dnl arg[3] is a space separated list of extra target specific devices.
 574 AC_DEFUN([SIM_AC_OPTION_HARDWARE],
 575 [
 576 if test x"[$1]" = x"yes"; then
 577   sim_hw_p=yes
 578 else
 579   sim_hw_p=no
 580 fi
 581 if test "[$2]"; then
 582   hardware="[$2]"
 583 else
 584   hardware="cfi core pal glue"
 585 fi
 586 hardware="$hardware [$3]"
 587 sim_hw_cflags="-DWITH_HW=1"
 588 sim_hw="$hardware"
 589 sim_hw_objs="\$(SIM_COMMON_HW_OBJS) `echo $sim_hw | sed -e 's/\([[^ ]][[^ ]]*\)/dv-\1.o/g'`"
 590 AC_ARG_ENABLE(sim-hardware,
 591 [  --enable-sim-hardware=LIST           Specify the hardware to be included in the build.],
 592 [
 593 case "${enableval}" in
 594   yes)  sim_hw_p=yes;;
 595   no)   sim_hw_p=no;;
 596   ,*)   sim_hw_p=yes; hardware="${hardware} `echo ${enableval} | sed -e 's/,/ /'`";;
 597   *,)   sim_hw_p=yes; hardware="`echo ${enableval} | sed -e 's/,/ /'` ${hardware}";;
 598   *)    sim_hw_p=yes; hardware="`echo ${enableval} | sed -e 's/,/ /'`"'';;
 599 esac
 600 if test "$sim_hw_p" != yes; then
 601   sim_hw_objs=
 602   sim_hw_cflags="-DWITH_HW=0"
 603   sim_hw=
 604 else
 605   sim_hw_cflags="-DWITH_HW=1"
 606   # remove duplicates
 607   sim_hw=""
 608   sim_hw_objs="\$(SIM_COMMON_HW_OBJS)"
 609   for i in $hardware ; do
 610     case " $sim_hw " in
 611       *" $i "*) ;;
 612       *) sim_hw="$sim_hw $i" ; sim_hw_objs="$sim_hw_objs dv-$i.o";;
 613     esac
 614   done
 615 fi
 616 if test x"$silent" != x"yes" && test "$sim_hw_p" = "yes"; then
 617   echo "Setting hardware to $sim_hw_cflags, $sim_hw, $sim_hw_objs"
 618 fi],[
 619 if test "$sim_hw_p" != yes; then
 620   sim_hw_objs=
 621   sim_hw_cflags="-DWITH_HW=0"
 622   sim_hw=
 623 fi
 624 if test x"$silent" != x"yes"; then
 625   echo "Setting hardware to $sim_hw_cflags, $sim_hw, $sim_hw_objs"
 626 fi])dnl
 627 ])
 628 AC_SUBST(sim_hw_cflags)
 629 AC_SUBST(sim_hw_objs)
 630 AC_SUBST(sim_hw)
 631
 632
 633 dnl --enable-sim-inline is for users that wish to ramp up the simulator's
 634 dnl performance by inlining functions.
 635 dnl Guarantee that unconfigured simulators do not do any inlining
 636 sim_inline="-DDEFAULT_INLINE=0"
 637 AC_DEFUN([SIM_AC_OPTION_INLINE],
 638 [
 639 default_sim_inline="ifelse([$1],,,-DDEFAULT_INLINE=[$1])"
 640 AC_ARG_ENABLE(sim-inline,
 641 [  --enable-sim-inline=inlines          Specify which functions should be inlined.],
 642 [sim_inline=""
 643 case "$enableval" in
 644   no)           sim_inline="-DDEFAULT_INLINE=0";;
 645   0)            sim_inline="-DDEFAULT_INLINE=0";;
 646   yes | 2)      sim_inline="-DDEFAULT_INLINE=ALL_C_INLINE";;
 647   1)            sim_inline="-DDEFAULT_INLINE=INLINE_LOCALS";;
 648   *) for x in `echo "$enableval" | sed -e "s/,/ /g"`; do
 649        new_flag=""
 650        case "$x" in
 651          *_INLINE=*)    new_flag="-D$x";;
 652          *=*)           new_flag=`echo "$x" | sed -e "s/=/_INLINE=/" -e "s/^/-D/"`;;
 653          *_INLINE)      new_flag="-D$x=ALL_C_INLINE";;
 654          *)             new_flag="-D$x""_INLINE=ALL_C_INLINE";;
 655        esac
 656        if test x"$sim_inline" = x""; then
 657          sim_inline="$new_flag"
 658        else
 659          sim_inline="$sim_inline $new_flag"
 660        fi
 661      done;;
 662 esac
 663 if test x"$silent" != x"yes" && test x"$sim_inline" != x""; then
 664   echo "Setting inline flags = $sim_inline" 6>&1
 665 fi],[
 666 if test "x$cross_compiling" = "xno"; then
 667   if test x"$GCC" != "x" -a x"${default_sim_inline}" != "x" ; then
 668     sim_inline="${default_sim_inline}"
 669     if test x"$silent" != x"yes"; then
 670       echo "Setting inline flags = $sim_inline" 6>&1
 671     fi
 672   else
 673     sim_inline=""
 674   fi
 675 else
 676   sim_inline="-DDEFAULT_INLINE=0"
 677 fi])dnl
 678 ])
 679 AC_SUBST(sim_inline)
 680
 681
 682 AC_DEFUN([SIM_AC_OPTION_PACKAGES],
 683 [
 684 AC_ARG_ENABLE(sim-packages,
 685 [  --enable-sim-packages=list           Specify the packages to be included in the build.],
 686 [packages=disklabel
 687 case "${enableval}" in
 688   yes)  ;;
 689   no)   AC_MSG_ERROR("List of packages must be specified for --enable-sim-packages"); packages="";;
 690   ,*)   packages="${packages}${enableval}";;
 691   *,)   packages="${enableval}${packages}";;
 692   *)    packages="${enableval}"'';;
 693 esac
 694 sim_pk_src=`echo $packages | sed -e 's/,/.c pk_/g' -e 's/^/pk_/' -e 's/$/.c/'`
 695 sim_pk_obj=`echo $sim_pk_src | sed -e 's/\.c/.o/g'`
 696 if test x"$silent" != x"yes" && test x"$packages" != x""; then
 697   echo "Setting packages to $sim_pk_src, $sim_pk_obj"
 698 fi],[packages=disklabel
 699 sim_pk_src=`echo $packages | sed -e 's/,/.c pk_/g' -e 's/^/pk_/' -e 's/$/.c/'`
 700 sim_pk_obj=`echo $sim_pk_src | sed -e 's/\.c/.o/g'`
 701 if test x"$silent" != x"yes"; then
 702   echo "Setting packages to $sim_pk_src, $sim_pk_obj"
 703 fi])dnl
 704 ])
 705 AC_SUBST(sim_packages)
 706
 707
 708 AC_DEFUN([SIM_AC_OPTION_REGPARM],
 709 [
 710 AC_ARG_ENABLE(sim-regparm,
 711 [  --enable-sim-regparm=nr-parm         Pass parameters in registers instead of on the stack - x86/GCC specific.],
 712 [case "${enableval}" in
 713   0*|1*|2*|3*|4*|5*|6*|7*|8*|9*) sim_regparm="-DWITH_REGPARM=${enableval}";;
 714   no)                            sim_regparm="" ;;
 715   yes)                           sim_regparm="-DWITH_REGPARM=3";;
 716   *)   AC_MSG_ERROR("Unknown value $enableval for --enable-sim-regparm"); sim_regparm="";;
 717 esac
 718 if test x"$silent" != x"yes" && test x"$sim_regparm" != x""; then
 719   echo "Setting regparm flags = $sim_regparm" 6>&1
 720 fi],[sim_regparm=""])dnl
 721 ])
 722 AC_SUBST(sim_regparm)
 723
 724
 725 AC_DEFUN([SIM_AC_OPTION_RESERVED_BITS],
 726 [
 727 default_sim_reserved_bits="ifelse([$1],,1,[$1])"
 728 AC_ARG_ENABLE(sim-reserved-bits,
 729 [  --enable-sim-reserved-bits           Specify whether to check reserved bits in instruction.],
 730 [case "${enableval}" in
 731   yes)  sim_reserved_bits="-DWITH_RESERVED_BITS=1";;
 732   no)   sim_reserved_bits="-DWITH_RESERVED_BITS=0";;
 733   *)    AC_MSG_ERROR("--enable-sim-reserved-bits does not take a value"); sim_reserved_bits="";;
 734 esac
 735 if test x"$silent" != x"yes" && test x"$sim_reserved_bits" != x""; then
 736   echo "Setting reserved flags = $sim_reserved_bits" 6>&1
 737 fi],[sim_reserved_bits="-DWITH_RESERVED_BITS=${default_sim_reserved_bits}"])dnl
 738 ])
 739 AC_SUBST(sim_reserved_bits)
 740
 741
 742 AC_DEFUN([SIM_AC_OPTION_SMP],
 743 [
 744 default_sim_smp="ifelse([$1],,5,[$1])"
 745 AC_ARG_ENABLE(sim-smp,
 746 [  --enable-sim-smp=n                   Specify number of processors to configure for (default ${default_sim_smp}).],
 747 [case "${enableval}" in
 748   yes)  sim_smp="-DWITH_SMP=5" ; sim_igen_smp="-N 5";;
 749   no)   sim_smp="-DWITH_SMP=0" ; sim_igen_smp="-N 0";;
 750   *)    sim_smp="-DWITH_SMP=$enableval" ; sim_igen_smp="-N $enableval";;
 751 esac
 752 if test x"$silent" != x"yes" && test x"$sim_smp" != x""; then
 753   echo "Setting smp flags = $sim_smp" 6>&1
 754 fi],[sim_smp="-DWITH_SMP=${default_sim_smp}" ; sim_igen_smp="-N ${default_sim_smp}"
 755 if test x"$silent" != x"yes"; then
 756   echo "Setting smp flags = $sim_smp" 6>&1
 757 fi])dnl
 758 ])
 759 AC_SUBST(sim_smp)
 760
 761
 762 AC_DEFUN([SIM_AC_OPTION_STDCALL],
 763 [
 764 AC_ARG_ENABLE(sim-stdcall,
 765 [  --enable-sim-stdcall=type            Use an alternative function call/return mechanism - x86/GCC specific.],
 766 [case "${enableval}" in
 767   no)           sim_stdcall="" ;;
 768   std*)         sim_stdcall="-DWITH_STDCALL=1";;
 769   yes)          sim_stdcall="-DWITH_STDCALL=1";;
 770   *)   AC_MSG_ERROR("Unknown value $enableval for --enable-sim-stdcall"); sim_stdcall="";;
 771 esac
 772 if test x"$silent" != x"yes" && test x"$sim_stdcall" != x""; then
 773   echo "Setting function call flags = $sim_stdcall" 6>&1
 774 fi],[sim_stdcall=""])dnl
 775 ])
 776 AC_SUBST(sim_stdcall)
 777
 778
 779 AC_DEFUN([SIM_AC_OPTION_XOR_ENDIAN],
 780 [
 781 default_sim_xor_endian="ifelse([$1],,8,[$1])"
 782 AC_ARG_ENABLE(sim-xor-endian,
 783 [  --enable-sim-xor-endian=n            Specify number bytes involved in XOR bi-endian mode (default ${default_sim_xor_endian}).],
 784 [case "${enableval}" in
 785   yes)  sim_xor_endian="-DWITH_XOR_ENDIAN=8";;
 786   no)   sim_xor_endian="-DWITH_XOR_ENDIAN=0";;
 787   *)    sim_xor_endian="-DWITH_XOR_ENDIAN=$enableval";;
 788 esac
 789 if test x"$silent" != x"yes" && test x"$sim_xor_endian" != x""; then
 790   echo "Setting xor-endian flag = $sim_xor_endian" 6>&1
 791 fi],[sim_xor_endian="-DWITH_XOR_ENDIAN=${default_sim_xor_endian}"])dnl
 792 ])
 793 AC_SUBST(sim_xor_endian)
 794
 795
 796 dnl --enable-build-warnings is for developers of the simulator.
 797 dnl it enables extra GCC specific warnings.
 798 AC_DEFUN([SIM_AC_OPTION_WARNINGS],
 799 [
 800 # NOTE: Don't add -Wall or -Wunused, they both include
 801 # -Wunused-parameter which reports bogus warnings.
 802 # NOTE: If you add to this list, remember to update
 803 # gdb/doc/gdbint.texinfo.
 804 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
 805 -Wformat -Wparentheses -Wpointer-arith"
 806 # GCC supports -Wuninitialized only with -O or -On, n != 0.
 807 if test x${CFLAGS+set} = xset; then
 808   case "${CFLAGS}" in
 809     *"-O0"* ) ;;
 810     *"-O"* )
 811       build_warnings="${build_warnings} -Wuninitialized"
 812     ;;
 813   esac
 814 else
 815   build_warnings="${build_warnings} -Wuninitialized"
 816 fi
 817 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
 818 # -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
 819 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
 820 # -Wcast-align -Wwrite-strings -Wconversion -Wstrict-prototypes
 821 # -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls
 822 # -Woverloaded-virtual -Winline -Werror"
 823 AC_ARG_ENABLE(build-warnings,
 824 [  --enable-build-warnings Enable build-time compiler warnings if gcc is used],
 825 [case "${enableval}" in
 826   yes)  ;;
 827   no)   build_warnings="-w";;
 828   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
 829         build_warnings="${build_warnings} ${t}";;
 830   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
 831         build_warnings="${t} ${build_warnings}";;
 832   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
 833 esac
 834 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
 835   echo "Setting compiler warning flags = $build_warnings" 6>&1
 836 fi])dnl
 837 AC_ARG_ENABLE(sim-build-warnings,
 838 [  --enable-gdb-build-warnings Enable SIM specific build-time compiler warnings if gcc is used],
 839 [case "${enableval}" in
 840   yes)  ;;
 841   no)   build_warnings="-w";;
 842   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
 843         build_warnings="${build_warnings} ${t}";;
 844   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
 845         build_warnings="${t} ${build_warnings}";;
 846   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
 847 esac
 848 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
 849   echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
 850 fi])dnl
 851 WARN_CFLAGS=""
 852 WERROR_CFLAGS=""
 853 if test "x${build_warnings}" != x -a "x$GCC" = xyes
 854 then
 855     AC_MSG_CHECKING(compiler warning flags)
 856     # Separate out the -Werror flag as some files just cannot be
 857     # compiled with it enabled.
 858     for w in ${build_warnings}; do
 859         case $w in
 860         -Werr*) WERROR_CFLAGS=-Werror ;;
 861         *) # Check that GCC accepts it
 862             saved_CFLAGS="$CFLAGS"
 863             CFLAGS="$CFLAGS $w"
 864             AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
 865             CFLAGS="$saved_CFLAGS"
 866         esac
 867     done
 868     AC_MSG_RESULT(${WARN_CFLAGS}${WERROR_CFLAGS})
 869 fi
 870 ])
 871 AC_SUBST(WARN_CFLAGS)
 872 AC_SUBST(WERROR_CFLAGS)
 873
 874
 875 dnl Generate the Makefile in a target specific directory.
 876 dnl Substitutions aren't performed on the file in AC_SUBST_FILE,
 877 dnl so this is a cover macro to tuck the details away of how we cope.
 878 dnl We cope by having autoconf generate two files and then merge them into
 879 dnl one afterwards.  The two pieces of the common fragment are inserted into
 880 dnl the target's fragment at the appropriate points.
 881
 882 AC_DEFUN([SIM_AC_OUTPUT],
 883 [
 884 AC_LINK_FILES($sim_link_files, $sim_link_links)
 885 dnl Make @cgen_breaks@ non-null only if the sim uses CGEN.
 886 cgen_breaks=""
 887 if grep CGEN_MAINT $srcdir/Makefile.in >/dev/null; then
 888 cgen_breaks="break cgen_rtx_error";
 889 fi
 890 AC_SUBST(cgen_breaks)
 891 AC_CONFIG_FILES(Makefile.sim:Makefile.in)
 892 AC_CONFIG_FILES(Make-common.sim:../common/Make-common.in)
 893 AC_CONFIG_FILES(.gdbinit:../common/gdbinit.in)
 894 AC_CONFIG_COMMANDS([Makefile],
 895 [echo "Merging Makefile.sim+Make-common.sim into Makefile ..."
 896  rm -f Makesim1.tmp Makesim2.tmp Makefile
 897  sed -n -e '/^## COMMON_PRE_/,/^## End COMMON_PRE_/ p' <Make-common.sim >Makesim1.tmp
 898  sed -n -e '/^## COMMON_POST_/,/^## End COMMON_POST_/ p' <Make-common.sim >Makesim2.tmp
 899  sed -e '/^## COMMON_PRE_/ r Makesim1.tmp' \
 900         -e '/^## COMMON_POST_/ r Makesim2.tmp' \
 901         <Makefile.sim >Makefile
 902  rm -f Makefile.sim Make-common.sim Makesim1.tmp Makesim2.tmp
 903 ])
 904 AC_CONFIG_COMMANDS([stamp-h], [echo > stamp-h])
 905 AC_OUTPUT
 906 ])
 907
 908 sinclude(../../config/gettext-sister.m4)
 909 sinclude(../../config/acx.m4)
 910
 911 dnl --enable-cgen-maint support
 912 AC_DEFUN([SIM_AC_OPTION_CGEN_MAINT],
 913 [
 914 cgen_maint=no
 915 dnl Default is to use one in build tree.
 916 cgen=guile
 917 cgendir='$(srcdir)/../../cgen'
 918 dnl Having --enable-maintainer-mode take arguments is another way to go.
 919 dnl ??? One can argue --with is more appropriate if one wants to specify
 920 dnl a directory name, but what we're doing here is an enable/disable kind
 921 dnl of thing and specifying both --enable and --with is klunky.
 922 dnl If you reeely want this to be --with, go ahead and change it.
 923 AC_ARG_ENABLE(cgen-maint,
 924 [  --enable-cgen-maint[=DIR]    build cgen generated files],
 925 [case "${enableval}" in
 926   yes)  cgen_maint=yes ;;
 927   no)   cgen_maint=no ;;
 928   *)
 929         # argument is cgen install directory (not implemented yet).
 930         # Having a `share' directory might be more appropriate for the .scm,
 931         # .cpu, etc. files.
 932         cgendir=${cgen_maint}/lib/cgen
 933         cgen=guile
 934         ;;
 935 esac])dnl
 936 dnl AM_CONDITIONAL(CGEN_MAINT, test x${cgen_maint} != xno)
 937 if test x${cgen_maint} != xno ; then
 938   CGEN_MAINT=''
 939 else
 940   CGEN_MAINT='#'
 941 fi
 942 AC_SUBST(CGEN_MAINT)
 943 AC_SUBST(cgendir)
 944 AC_SUBST(cgen)
 945 ])