gdb/acinclude.m4

   1 dnl written by Rob Savoye <rob@cygnus.com> for Cygnus Support
   2 dnl major rewriting for Tcl 7.5 by Don Libes <libes@nist.gov>
   3
   4 dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition.
   5 sinclude(../bfd/acinclude.m4)
   6
   7 dnl CY_AC_PATH_TCLCONFIG and CY_AC_LOAD_TCLCONFIG should be invoked
   8 dnl (in that order) before any other TCL macros.  Similarly for TK.
   9
  10 dnl CYGNUS LOCAL: This gets the right posix flag for gcc
  11 AC_DEFUN(CY_AC_TCL_LYNX_POSIX,
  12 [AC_REQUIRE([AC_PROG_CC])AC_REQUIRE([AC_PROG_CPP])
  13 AC_MSG_CHECKING([if running LynxOS])
  14 AC_CACHE_VAL(ac_cv_os_lynx,
  15 [AC_EGREP_CPP(yes,
  16 [/*
  17  * The old Lynx "cc" only defines "Lynx", but the newer one uses "__Lynx__"
  18  */
  19 #if defined(__Lynx__) || defined(Lynx)
  20 yes
  21 #endif
  22 ], ac_cv_os_lynx=yes, ac_cv_os_lynx=no)])
  23 #
  24 if test "$ac_cv_os_lynx" = "yes" ; then
  25   AC_MSG_RESULT(yes)
  26   AC_DEFINE(LYNX)
  27   AC_MSG_CHECKING([whether -mposix or -X is available])
  28   AC_CACHE_VAL(ac_cv_c_posix_flag,
  29   [AC_TRY_COMPILE(,[
  30   /*
  31    * This flag varies depending on how old the compiler is.
  32    * -X is for the old "cc" and "gcc" (based on 1.42).
  33    * -mposix is for the new gcc (at least 2.5.8).
  34    */
  35   #if defined(__GNUC__) && __GNUC__ >= 2
  36   choke me
  37   #endif
  38   ], ac_cv_c_posix_flag=" -mposix", ac_cv_c_posix_flag=" -X")])
  39   CC="$CC $ac_cv_c_posix_flag"
  40   AC_MSG_RESULT($ac_cv_c_posix_flag)
  41   else
  42   AC_MSG_RESULT(no)
  43 fi
  44 ])
  45
  46 #
  47 # Sometimes the native compiler is a bogus stub for gcc or /usr/ucb/cc. This
  48 # makes configure think it's cross compiling. If --target wasn't used, then
  49 # we can't configure, so something is wrong. We don't use the cache
  50 # here cause if somebody fixes their compiler install, we want this to work.
  51 AC_DEFUN(CY_AC_C_WORKS,
  52 [# If we cannot compile and link a trivial program, we can't expect anything to work
  53 AC_MSG_CHECKING(whether the compiler ($CC) actually works)
  54 AC_TRY_COMPILE(, [/* don't need anything here */],
  55         c_compiles=yes, c_compiles=no)
  56
  57 AC_TRY_LINK(, [/* don't need anything here */],
  58         c_links=yes, c_links=no)
  59
  60 if test x"${c_compiles}" = x"no" ; then
  61   AC_MSG_ERROR(the native compiler is broken and won't compile.)
  62 fi
  63
  64 if test x"${c_links}" = x"no" ; then
  65   AC_MSG_ERROR(the native compiler is broken and won't link.)
  66 fi
  67 AC_MSG_RESULT(yes)
  68 ])
  69
  70 AC_DEFUN(CY_AC_PATH_TCLH, [
  71 #
  72 # Ok, lets find the tcl source trees so we can use the headers
  73 # Warning: transition of version 9 to 10 will break this algorithm
  74 # because 10 sorts before 9. We also look for just tcl. We have to
  75 # be careful that we don't match stuff like tclX by accident.
  76 # the alternative search directory is involked by --with-tclinclude
  77 #
  78
  79 no_tcl=true
  80 AC_MSG_CHECKING(for Tcl private headers. dir=${configdir})
  81 AC_ARG_WITH(tclinclude, [  --with-tclinclude=DIR   Directory where tcl private headers are], with_tclinclude=${withval})
  82 AC_CACHE_VAL(ac_cv_c_tclh,[
  83 # first check to see if --with-tclinclude was specified
  84 if test x"${with_tclinclude}" != x ; then
  85   if test -f ${with_tclinclude}/tclInt.h ; then
  86     ac_cv_c_tclh=`(cd ${with_tclinclude}; pwd)`
  87   elif test -f ${with_tclinclude}/generic/tclInt.h ; then
  88     ac_cv_c_tclh=`(cd ${with_tclinclude}/generic; pwd)`
  89   else
  90     AC_MSG_ERROR([${with_tclinclude} directory doesn't contain private headers])
  91   fi
  92 fi
  93
  94 # next check if it came with Tcl configuration file
  95 if test x"${ac_cv_c_tclconfig}" = x ; then
  96   if test -f $ac_cv_c_tclconfig/../generic/tclInt.h ; then
  97     ac_cv_c_tclh=`(cd $ac_cv_c_tclconfig/..; pwd)`
  98   fi
  99 fi
 100
 101 # next check in private source directory
 102 #
 103 # since ls returns lowest version numbers first, reverse its output
 104 if test x"${ac_cv_c_tclh}" = x ; then
 105   for i in \
 106                 ${srcdir}/../tcl \
 107                 `ls -dr ${srcdir}/../tcl[[7-9]]* 2>/dev/null` \
 108                 ${srcdir}/../../tcl \
 109                 `ls -dr ${srcdir}/../../tcl[[7-9]]* 2>/dev/null` \
 110                 ${srcdir}/../../../tcl \
 111                 `ls -dr ${srcdir}/../../../tcl[[7-9]]* 2>/dev/null ` ; do
 112     if test -f $i/generic/tclInt.h ; then
 113       ac_cv_c_tclh=`(cd $i/generic; pwd)`
 114       break
 115     fi
 116   done
 117 fi
 118 # finally check in a few common install locations
 119 #
 120 # since ls returns lowest version numbers first, reverse its output
 121 if test x"${ac_cv_c_tclh}" = x ; then
 122   for i in \
 123                 `ls -dr /usr/local/src/tcl[[7-9]]* 2>/dev/null` \
 124                 `ls -dr /usr/local/lib/tcl[[7-9]]* 2>/dev/null` \
 125                 /usr/local/src/tcl \
 126                 /usr/local/lib/tcl \
 127                 ${prefix}/include ; do
 128     if test -f $i/generic/tclInt.h ; then
 129       ac_cv_c_tclh=`(cd $i/generic; pwd)`
 130       break
 131     fi
 132   done
 133 fi
 134 # see if one is installed
 135 if test x"${ac_cv_c_tclh}" = x ; then
 136    AC_HEADER_CHECK(tclInt.h, ac_cv_c_tclh=installed, ac_cv_c_tclh="")
 137 fi
 138 ])
 139 if test x"${ac_cv_c_tclh}" = x ; then
 140   TCLHDIR="# no Tcl private headers found"
 141   AC_MSG_ERROR([Can't find Tcl private headers])
 142 fi
 143 if test x"${ac_cv_c_tclh}" != x ; then
 144   no_tcl=""
 145   if test x"${ac_cv_c_tclh}" = x"installed" ; then
 146     AC_MSG_RESULT([is installed])
 147     TCLHDIR=""
 148   else
 149     AC_MSG_RESULT([found in ${ac_cv_c_tclh}])
 150     # this hack is cause the TCLHDIR won't print if there is a "-I" in it.
 151     TCLHDIR="-I${ac_cv_c_tclh}"
 152   fi
 153 fi
 154
 155 AC_SUBST(TCLHDIR)
 156 ])
 157
 158
 159 AC_DEFUN(CY_AC_PATH_TCLCONFIG, [
 160 #
 161 # Ok, lets find the tcl configuration
 162 # First, look for one uninstalled.
 163 # the alternative search directory is invoked by --with-tclconfig
 164 #
 165
 166 if test x"${no_tcl}" = x ; then
 167   # we reset no_tcl in case something fails here
 168   no_tcl=true
 169   AC_ARG_WITH(tclconfig, [  --with-tclconfig=DIR    Directory containing tcl configuration (tclConfig.sh)],
 170          with_tclconfig=${withval})
 171   AC_MSG_CHECKING([for Tcl configuration])
 172   AC_CACHE_VAL(ac_cv_c_tclconfig,[
 173
 174   # First check to see if --with-tclconfig was specified.
 175   if test x"${with_tclconfig}" != x ; then
 176     if test -f "${with_tclconfig}/tclConfig.sh" ; then
 177       ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
 178     else
 179       AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
 180     fi
 181   fi
 182
 183   # then check for a private Tcl installation
 184   if test x"${ac_cv_c_tclconfig}" = x ; then
 185     for i in \
 186                 ../tcl \
 187                 `ls -dr ../tcl[[7-9]]* 2>/dev/null` \
 188                 ../../tcl \
 189                 `ls -dr ../../tcl[[7-9]]* 2>/dev/null` \
 190                 ../../../tcl \
 191                 `ls -dr ../../../tcl[[7-9]]* 2>/dev/null` ; do
 192       if test -f "$i/${configdir}/tclConfig.sh" ; then
 193         ac_cv_c_tclconfig=`(cd $i/${configdir}; pwd)`
 194         break
 195       fi
 196     done
 197   fi
 198   # check in a few common install locations
 199   if test x"${ac_cv_c_tclconfig}" = x ; then
 200     for i in `ls -d ${prefix}/lib /usr/local/lib 2>/dev/null` ; do
 201       if test -f "$i/tclConfig.sh" ; then
 202         ac_cv_c_tclconfig=`(cd $i; pwd)`
 203         break
 204       fi
 205     done
 206   fi
 207   # check in a few other private locations
 208   if test x"${ac_cv_c_tclconfig}" = x ; then
 209     for i in \
 210                 ${srcdir}/../tcl \
 211                 `ls -dr ${srcdir}/../tcl[[7-9]]* 2>/dev/null` ; do
 212       if test -f "$i/${configdir}/tclConfig.sh" ; then
 213         ac_cv_c_tclconfig=`(cd $i/${configdir}; pwd)`
 214         break
 215       fi
 216     done
 217   fi
 218   ])
 219   if test x"${ac_cv_c_tclconfig}" = x ; then
 220     TCLCONFIG="# no Tcl configs found"
 221     AC_MSG_WARN(Can't find Tcl configuration definitions)
 222   else
 223     no_tcl=
 224     TCLCONFIG=${ac_cv_c_tclconfig}/tclConfig.sh
 225     AC_MSG_RESULT(found $TCLCONFIG)
 226   fi
 227 fi
 228 ])
 229
 230 # Defined as a separate macro so we don't have to cache the values
 231 # from PATH_TCLCONFIG (because this can also be cached).
 232 AC_DEFUN(CY_AC_LOAD_TCLCONFIG, [
 233     . $TCLCONFIG
 234
 235     AC_SUBST(TCL_VERSION)
 236     AC_SUBST(TCL_MAJOR_VERSION)
 237     AC_SUBST(TCL_MINOR_VERSION)
 238     AC_SUBST(TCL_CC)
 239     AC_SUBST(TCL_DEFS)
 240
 241 dnl not used, don't export to save symbols
 242 dnl    AC_SUBST(TCL_LIB_FILE)
 243
 244 dnl don't export, not used outside of configure
 245 dnl     AC_SUBST(TCL_LIBS)
 246 dnl not used, don't export to save symbols
 247 dnl    AC_SUBST(TCL_PREFIX)
 248
 249 dnl not used, don't export to save symbols
 250 dnl    AC_SUBST(TCL_EXEC_PREFIX)
 251
 252     AC_SUBST(TCL_SHLIB_CFLAGS)
 253     AC_SUBST(TCL_SHLIB_LD)
 254 dnl don't export, not used outside of configure
 255     AC_SUBST(TCL_SHLIB_LD_LIBS)
 256     AC_SUBST(TCL_SHLIB_SUFFIX)
 257 dnl not used, don't export to save symbols
 258     AC_SUBST(TCL_DL_LIBS)
 259     AC_SUBST(TCL_LD_FLAGS)
 260 dnl don't export, not used outside of configure
 261     AC_SUBST(TCL_LD_SEARCH_FLAGS)
 262     AC_SUBST(TCL_COMPAT_OBJS)
 263     AC_SUBST(TCL_RANLIB)
 264     AC_SUBST(TCL_BUILD_LIB_SPEC)
 265     AC_SUBST(TCL_LIB_SPEC)
 266     AC_SUBST(TCL_LIB_VERSIONS_OK)
 267
 268 dnl not used, don't export to save symbols
 269 dnl    AC_SUBST(TCL_SHARED_LIB_SUFFIX)
 270
 271 dnl not used, don't export to save symbols
 272 dnl    AC_SUBST(TCL_UNSHARED_LIB_SUFFIX)
 273 ])
 274
 275 # Warning: Tk definitions are very similar to Tcl definitions but
 276 # are not precisely the same.  There are a couple of differences,
 277 # so don't do changes to Tcl thinking you can cut and paste it do
 278 # the Tk differences and later simply substitute "Tk" for "Tcl".
 279 # Known differences:
 280 #  - Acceptable Tcl major version #s is 7-9 while Tk is 4-9
 281 #  - Searching for Tcl includes looking for tclInt.h, Tk looks for tk.h
 282 #  - Computing major/minor versions is different because Tk depends on
 283 #    headers to Tcl, Tk, and X.
 284 #  - Symbols in tkConfig.sh are different than tclConfig.sh
 285 #  - Acceptable for Tk to be missing but not Tcl.
 286
 287 AC_DEFUN(CY_AC_PATH_TKH, [
 288 #
 289 # Ok, lets find the tk source trees so we can use the headers
 290 # If the directory (presumably symlink) named "tk" exists, use that one
 291 # in preference to any others.  Same logic is used when choosing library
 292 # and again with Tcl. The search order is the best place to look first, then in
 293 # decreasing significance. The loop breaks if the trigger file is found.
 294 # Note the gross little conversion here of srcdir by cd'ing to the found
 295 # directory. This converts the path from a relative to an absolute, so
 296 # recursive cache variables for the path will work right. We check all
 297 # the possible paths in one loop rather than many seperate loops to speed
 298 # things up.
 299 # the alternative search directory is involked by --with-tkinclude
 300 #
 301 no_tk=true
 302 AC_MSG_CHECKING(for Tk private headers)
 303 AC_ARG_WITH(tkinclude, [  --with-tkinclude=DIR    Directory where tk private headers are], with_tkinclude=${withval})
 304 AC_CACHE_VAL(ac_cv_c_tkh,[
 305 # first check to see if --with-tkinclude was specified
 306 if test x"${with_tkinclude}" != x ; then
 307   if test -f ${with_tkinclude}/tk.h ; then
 308     ac_cv_c_tkh=`(cd ${with_tkinclude}; pwd)`
 309   elif test -f ${with_tkinclude}/generic/tk.h ; then
 310     ac_cv_c_tkh=`(cd ${with_tkinclude}/generic; pwd)`
 311   else
 312     AC_MSG_ERROR([${with_tkinclude} directory doesn't contain private headers])
 313   fi
 314 fi
 315
 316 # next check if it came with Tk configuration file
 317 if test x"${ac_cv_c_tkconfig}" = x ; then
 318   if test -f $ac_cv_c_tkconfig/../generic/tk.h ; then
 319     ac_cv_c_tkh=`(cd $ac_cv_c_tkconfig/..; pwd)`
 320   fi
 321 fi
 322
 323 # next check in private source directory
 324 #
 325 # since ls returns lowest version numbers first, reverse its output
 326 if test x"${ac_cv_c_tkh}" = x ; then
 327   for i in \
 328                 ${srcdir}/../tk \
 329                 `ls -dr ${srcdir}/../tk[[4-9]]* 2>/dev/null` \
 330                 ${srcdir}/../../tk \
 331                 `ls -dr ${srcdir}/../../tk[[4-9]]* 2>/dev/null` \
 332                 ${srcdir}/../../../tk \
 333                 `ls -dr ${srcdir}/../../../tk[[4-9]]* 2>/dev/null ` ; do
 334     if test -f $i/generic/tk.h ; then
 335       ac_cv_c_tkh=`(cd $i/generic; pwd)`
 336       break
 337     fi
 338   done
 339 fi
 340 # finally check in a few common install locations
 341 #
 342 # since ls returns lowest version numbers first, reverse its output
 343 if test x"${ac_cv_c_tkh}" = x ; then
 344   for i in \
 345                 `ls -dr /usr/local/src/tk[[4-9]]* 2>/dev/null` \
 346                 `ls -dr /usr/local/lib/tk[[4-9]]* 2>/dev/null` \
 347                 /usr/local/src/tk \
 348                 /usr/local/lib/tk \
 349                 ${prefix}/include ; do
 350     if test -f $i/generic/tk.h ; then
 351       ac_cv_c_tkh=`(cd $i/generic; pwd)`
 352       break
 353     fi
 354   done
 355 fi
 356 # see if one is installed
 357 if test x"${ac_cv_c_tkh}" = x ; then
 358    AC_HEADER_CHECK(tk.h, ac_cv_c_tkh=installed, ac_cv_c_tkh="")
 359 fi
 360 ])
 361 if test x"${ac_cv_c_tkh}" != x ; then
 362   no_tk=""
 363   if test x"${ac_cv_c_tkh}" = x"installed" ; then
 364     AC_MSG_RESULT([is installed])
 365     TKHDIR=""
 366   else
 367     AC_MSG_RESULT([found in ${ac_cv_c_tkh}])
 368     # this hack is cause the TKHDIR won't print if there is a "-I" in it.
 369     TKHDIR="-I${ac_cv_c_tkh}"
 370   fi
 371 else
 372   TKHDIR="# no Tk directory found"
 373   AC_MSG_WARN([Can't find Tk private headers])
 374   no_tk=true
 375 fi
 376
 377 AC_SUBST(TKHDIR)
 378 ])
 379
 380
 381 AC_DEFUN(CY_AC_PATH_TKCONFIG, [
 382 #
 383 # Ok, lets find the tk configuration
 384 # First, look for one uninstalled.
 385 # the alternative search directory is invoked by --with-tkconfig
 386 #
 387
 388 if test x"${no_tk}" = x ; then
 389   # we reset no_tk in case something fails here
 390   no_tk=true
 391   AC_ARG_WITH(tkconfig, [  --with-tkconfig=DIR     Directory containing tk configuration (tkConfig.sh)],
 392          with_tkconfig=${withval})
 393   AC_MSG_CHECKING([for Tk configuration])
 394   AC_CACHE_VAL(ac_cv_c_tkconfig,[
 395
 396   # First check to see if --with-tkconfig was specified.
 397   if test x"${with_tkconfig}" != x ; then
 398     if test -f "${with_tkconfig}/tkConfig.sh" ; then
 399       ac_cv_c_tkconfig=`(cd ${with_tkconfig}; pwd)`
 400     else
 401       AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
 402     fi
 403   fi
 404
 405   # then check for a private Tk library
 406   if test x"${ac_cv_c_tkconfig}" = x ; then
 407     for i in \
 408                 ../tk \
 409                 `ls -dr ../tk[[4-9]]* 2>/dev/null` \
 410                 ../../tk \
 411                 `ls -dr ../../tk[[4-9]]* 2>/dev/null` \
 412                 ../../../tk \
 413                 `ls -dr ../../../tk[[4-9]]* 2>/dev/null` ; do
 414       if test -f "$i/${configdir}/tkConfig.sh" ; then
 415         ac_cv_c_tkconfig=`(cd $i/${configdir}; pwd)`
 416         break
 417       fi
 418     done
 419   fi
 420   # check in a few common install locations
 421   if test x"${ac_cv_c_tkconfig}" = x ; then
 422     for i in `ls -d ${prefix}/lib /usr/local/lib 2>/dev/null` ; do
 423       if test -f "$i/tkConfig.sh" ; then
 424         ac_cv_c_tkconfig=`(cd $i; pwd)`
 425         break
 426       fi
 427     done
 428   fi
 429   # check in a few other private locations
 430   if test x"${ac_cv_c_tkconfig}" = x ; then
 431     for i in \
 432                 ${srcdir}/../tk \
 433                 `ls -dr ${srcdir}/../tk[[4-9]]* 2>/dev/null` ; do
 434       if test -f "$i/${configdir}/tkConfig.sh" ; then
 435         ac_cv_c_tkconfig=`(cd $i/${configdir}; pwd)`
 436         break
 437       fi
 438     done
 439   fi
 440   ])
 441   if test x"${ac_cv_c_tkconfig}" = x ; then
 442     TKCONFIG="# no Tk configs found"
 443     AC_MSG_WARN(Can't find Tk configuration definitions)
 444   else
 445     no_tk=
 446     TKCONFIG=${ac_cv_c_tkconfig}/tkConfig.sh
 447     AC_MSG_RESULT(found $TKCONFIG)
 448   fi
 449 fi
 450
 451 ])
 452
 453 # Defined as a separate macro so we don't have to cache the values
 454 # from PATH_TKCONFIG (because this can also be cached).
 455 AC_DEFUN(CY_AC_LOAD_TKCONFIG, [
 456     if test -f "$TKCONFIG" ; then
 457       . $TKCONFIG
 458     fi
 459
 460     AC_SUBST(TK_VERSION)
 461 dnl not actually used, don't export to save symbols
 462 dnl    AC_SUBST(TK_MAJOR_VERSION)
 463 dnl    AC_SUBST(TK_MINOR_VERSION)
 464     AC_SUBST(TK_DEFS)
 465
 466 dnl not used, don't export to save symbols
 467     dnl AC_SUBST(TK_LIB_FILE)
 468
 469 dnl not used outside of configure
 470 dnl    AC_SUBST(TK_LIBS)
 471 dnl not used, don't export to save symbols
 472 dnl    AC_SUBST(TK_PREFIX)
 473
 474 dnl not used, don't export to save symbols
 475 dnl    AC_SUBST(TK_EXEC_PREFIX)
 476
 477     AC_SUBST(TK_BUILD_INCLUDES)
 478     AC_SUBST(TK_XINCLUDES)
 479     AC_SUBST(TK_XLIBSW)
 480     AC_SUBST(TK_BUILD_LIB_SPEC)
 481     AC_SUBST(TK_LIB_SPEC)
 482 ])
 483
 484
 485 # check for Itcl headers.
 486
 487 AC_DEFUN(CY_AC_PATH_ITCLH, [
 488 AC_MSG_CHECKING(for Itcl private headers. srcdir=${srcdir})
 489 if test x"${ac_cv_c_itclh}" = x ; then
 490   for i in ${srcdir}/../itcl ${srcdir}/../../itcl ${srcdir}/../../../itcl ; do
 491     if test -f $i/src/itcl.h ; then
 492       ac_cv_c_itclh=`(cd $i/src; pwd)`
 493       break
 494     fi
 495   done
 496 fi
 497 if test x"${ac_cv_c_itclh}" = x ; then
 498   ITCLHDIR="# no Itcl private headers found"
 499   AC_MSG_ERROR([Can't find Itcl private headers])
 500 fi
 501 if test x"${ac_cv_c_itclh}" != x ; then
 502      ITCLHDIR="-I${ac_cv_c_itclh}"
 503 fi
 504 # should always be here
 505      ITCLLIB="../itcl/src/libitcl.a"
 506 AC_SUBST(ITCLHDIR)
 507 AC_SUBST(ITCLLIB)
 508 ])
 509
 510 # check for Tix headers.
 511
 512 AC_DEFUN(CY_AC_PATH_TIX, [
 513 AC_MSG_CHECKING(for Tix private headers. srcdir=${srcdir})
 514 if test x"${ac_cv_c_tixh}" = x ; then
 515   for i in ${srcdir}/../tix ${srcdir}/../../tix ${srcdir}/../../../tix ; do
 516     if test -f $i/generic/tix.h ; then
 517       ac_cv_c_tixh=`(cd $i/generic; pwd)`
 518       break
 519     fi
 520   done
 521 fi
 522 if test x"${ac_cv_c_tixh}" = x ; then
 523   TIXHDIR="# no Tix private headers found"
 524   AC_MSG_ERROR([Can't find Tix private headers])
 525 fi
 526 if test x"${ac_cv_c_tixh}" != x ; then
 527      TIXHDIR="-I${ac_cv_c_tixh}"
 528 fi
 529 AC_SUBST(TIXHDIR)
 530 ])