gcc/aclocal.m4

   1 dnl See whether we can include both string.h and strings.h.
   2 AC_DEFUN(gcc_AC_HEADER_STRING,
   3 [AC_CACHE_CHECK([whether string.h and strings.h may both be included],
   4   gcc_cv_header_string,
   5 [AC_TRY_COMPILE([#include <string.h>
   6 #include <strings.h>], , gcc_cv_header_string=yes, gcc_cv_header_string=no)])
   7 if test $gcc_cv_header_string = yes; then
   8   AC_DEFINE(STRING_WITH_STRINGS, 1, [Define if you can safely include both <string.h> and <strings.h>.])
   9 fi
  10 ])
  11
  12 dnl See whether we need a declaration for a function.
  13 dnl The result is highly dependent on the INCLUDES passed in, so make sure
  14 dnl to use a different cache variable name in this macro if it is invoked
  15 dnl in a different context somewhere else.
  16 dnl gcc_AC_CHECK_DECL(SYMBOL,
  17 dnl     [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
  18 AC_DEFUN(gcc_AC_CHECK_DECL,
  19 [AC_MSG_CHECKING([whether $1 is declared])
  20 AC_CACHE_VAL(gcc_cv_have_decl_$1,
  21 [AC_TRY_COMPILE([$4],
  22 [#ifndef $1
  23 char *(*pfn) = (char *(*)) $1 ;
  24 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
  25 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
  26   AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
  27 else
  28   AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
  29 fi
  30 ])dnl
  31
  32 dnl Check multiple functions to see whether each needs a declaration.
  33 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
  34 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
  35 dnl     [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
  36 AC_DEFUN(gcc_AC_CHECK_DECLS,
  37 [for ac_func in $1
  38 do
  39 changequote(, )dnl
  40   ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
  41 changequote([, ])dnl
  42 gcc_AC_CHECK_DECL($ac_func,
  43   [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
  44   [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
  45   $4
  46 )
  47 done
  48 dnl Automatically generate config.h entries via autoheader.
  49 if test x = y ; then
  50   patsubst(translit([$1], [a-z], [A-Z]), [\w+],
  51     AC_DEFINE([HAVE_DECL_\&], 1,
  52       [Define to 1 if we found this declaration otherwise define to 0.]))dnl
  53 fi
  54 ])
  55
  56 dnl Check if we have vprintf and possibly _doprnt.
  57 dnl Note autoconf checks for vprintf even though we care about vfprintf.
  58 AC_DEFUN(gcc_AC_FUNC_VFPRINTF_DOPRNT,
  59 [AC_FUNC_VPRINTF
  60 vfprintf=
  61 doprint=
  62 if test $ac_cv_func_vprintf != yes ; then
  63   vfprintf=vfprintf.o
  64   if test $ac_cv_func__doprnt != yes ; then
  65     doprint=doprint.o
  66   fi
  67 fi
  68 AC_SUBST(vfprintf)
  69 AC_SUBST(doprint)
  70 ])
  71
  72 dnl See if the printf functions in libc support %p in format strings.
  73 AC_DEFUN(gcc_AC_FUNC_PRINTF_PTR,
  74 [AC_CACHE_CHECK(whether the printf functions support %p,
  75   gcc_cv_func_printf_ptr,
  76 [AC_TRY_RUN([#include <stdio.h>
  77
  78 int main()
  79 {
  80   char buf[64];
  81   char *p = buf, *q = NULL;
  82   sprintf(buf, "%p", p);
  83   sscanf(buf, "%p", &q);
  84   return (p != q);
  85 }], gcc_cv_func_printf_ptr=yes, gcc_cv_func_printf_ptr=no,
  86         gcc_cv_func_printf_ptr=no)
  87 rm -f core core.* *.core])
  88 if test $gcc_cv_func_printf_ptr = yes ; then
  89   AC_DEFINE(HAVE_PRINTF_PTR, 1, [Define if printf supports "%p".])
  90 fi
  91 ])
  92
  93 dnl See if symbolic links work and if not, try to substitute either hard links or simple copy.
  94 AC_DEFUN(gcc_AC_PROG_LN_S,
  95 [AC_MSG_CHECKING(whether ln -s works)
  96 AC_CACHE_VAL(gcc_cv_prog_LN_S,
  97 [rm -f conftestdata_t
  98 echo >conftestdata_f
  99 if ln -s conftestdata_f conftestdata_t 2>/dev/null
 100 then
 101   gcc_cv_prog_LN_S="ln -s"
 102 else
 103   if ln conftestdata_f conftestdata_t 2>/dev/null
 104   then
 105     gcc_cv_prog_LN_S=ln
 106   else
 107     gcc_cv_prog_LN_S=cp
 108   fi
 109 fi
 110 rm -f conftestdata_f conftestdata_t
 111 ])dnl
 112 LN_S="$gcc_cv_prog_LN_S"
 113 if test "$gcc_cv_prog_LN_S" = "ln -s"; then
 114   AC_MSG_RESULT(yes)
 115 else
 116   if test "$gcc_cv_prog_LN_S" = "ln"; then
 117     AC_MSG_RESULT([no, using ln])
 118   else
 119     AC_MSG_RESULT([no, and neither does ln, so using cp])
 120   fi
 121 fi
 122 AC_SUBST(LN_S)dnl
 123 ])
 124
 125 dnl See if hard links work and if not, try to substitute either symbolic links or simple copy.
 126 AC_DEFUN(gcc_AC_PROG_LN,
 127 [AC_MSG_CHECKING(whether ln works)
 128 AC_CACHE_VAL(gcc_cv_prog_LN,
 129 [rm -f conftestdata_t
 130 echo >conftestdata_f
 131 if ln conftestdata_f conftestdata_t 2>/dev/null
 132 then
 133   gcc_cv_prog_LN="ln"
 134 else
 135   if ln -s conftestdata_f conftestdata_t 2>/dev/null
 136   then
 137     gcc_cv_prog_LN="ln -s"
 138   else
 139     gcc_cv_prog_LN=cp
 140   fi
 141 fi
 142 rm -f conftestdata_f conftestdata_t
 143 ])dnl
 144 LN="$gcc_cv_prog_LN"
 145 if test "$gcc_cv_prog_LN" = "ln"; then
 146   AC_MSG_RESULT(yes)
 147 else
 148   if test "$gcc_cv_prog_LN" = "ln -s"; then
 149     AC_MSG_RESULT([no, using ln -s])
 150   else
 151     AC_MSG_RESULT([no, and neither does ln -s, so using cp])
 152   fi
 153 fi
 154 AC_SUBST(LN)dnl
 155 ])
 156
 157 dnl See whether the stage1 host compiler accepts the volatile keyword.
 158 AC_DEFUN(gcc_AC_C_VOLATILE,
 159 [AC_CACHE_CHECK([for volatile], gcc_cv_c_volatile,
 160 [AC_TRY_COMPILE(, [volatile int foo;],
 161         gcc_cv_c_volatile=yes, gcc_cv_c_volatile=no)])
 162 if test $gcc_cv_c_volatile = yes ; then
 163   AC_DEFINE(HAVE_VOLATILE, 1, [Define if your compiler understands volatile.])
 164 fi
 165 ])
 166
 167 dnl Check whether long double is supported.  This differs from the
 168 dnl built-in autoconf test in that it works for cross compiles.
 169 AC_DEFUN(gcc_AC_C_LONG_DOUBLE,
 170 [AC_CACHE_CHECK(for long double, gcc_cv_c_long_double,
 171 [if test "$GCC" = yes; then
 172   gcc_cv_c_long_double=yes
 173 else
 174 AC_TRY_COMPILE(,
 175 [/* The Stardent Vistra knows sizeof(long double), but does not support it.  */
 176 long double foo = 0.0;
 177 /* On Ultrix 4.3 cc, long double is 4 and double is 8.  */
 178 switch (0) case 0: case (sizeof(long double) >= sizeof(double)):;],
 179 gcc_cv_c_long_double=yes, gcc_cv_c_long_double=no)
 180 fi])
 181 if test $gcc_cv_c_long_double = yes; then
 182   AC_DEFINE(HAVE_LONG_DOUBLE)
 183 fi
 184 ])
 185
 186 dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
 187 dnl of the usual 2.
 188 AC_DEFUN(gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG,
 189 [AC_CACHE_CHECK([if mkdir takes one argument], gcc_cv_mkdir_takes_one_arg,
 190 [AC_TRY_COMPILE([
 191 #include <sys/types.h>
 192 #ifdef HAVE_SYS_STAT_H
 193 # include <sys/stat.h>
 194 #endif
 195 #ifdef HAVE_UNISTD_H
 196 # include <unistd.h>
 197 #endif
 198 #ifdef HAVE_DIRECT_H
 199 # include <direct.h>
 200 #endif], [mkdir ("foo", 0);],
 201         gcc_cv_mkdir_takes_one_arg=no, gcc_cv_mkdir_takes_one_arg=yes)])
 202 if test $gcc_cv_mkdir_takes_one_arg = yes ; then
 203   AC_DEFINE(MKDIR_TAKES_ONE_ARG, 1, [Define if host mkdir takes a single argument.])
 204 fi
 205 ])
 206
 207 AC_DEFUN(gcc_AC_PROG_INSTALL,
 208 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
 209 # Find a good install program.  We prefer a C program (faster),
 210 # so one script is as good as another.  But avoid the broken or
 211 # incompatible versions:
 212 # SysV /etc/install, /usr/sbin/install
 213 # SunOS /usr/etc/install
 214 # IRIX /sbin/install
 215 # AIX /bin/install
 216 # AFS /usr/afsws/bin/install, which mishandles nonexistent args
 217 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 218 # ./install, which can be erroneously created by make from ./install.sh.
 219 AC_MSG_CHECKING(for a BSD compatible install)
 220 if test -z "$INSTALL"; then
 221 AC_CACHE_VAL(ac_cv_path_install,
 222 [  IFS="${IFS=  }"; ac_save_IFS="$IFS"; IFS="${IFS}:"
 223   for ac_dir in $PATH; do
 224     # Account for people who put trailing slashes in PATH elements.
 225     case "$ac_dir/" in
 226     /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
 227     *)
 228       # OSF1 and SCO ODT 3.0 have their own names for install.
 229       for ac_prog in ginstall scoinst install; do
 230         if test -f $ac_dir/$ac_prog; then
 231           if test $ac_prog = install &&
 232             grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
 233             # AIX install.  It has an incompatible calling convention.
 234             # OSF/1 installbsd also uses dspmsg, but is usable.
 235             :
 236           else
 237             ac_cv_path_install="$ac_dir/$ac_prog -c"
 238             break 2
 239           fi
 240         fi
 241       done
 242       ;;
 243     esac
 244   done
 245   IFS="$ac_save_IFS"
 246 ])dnl
 247   if test "${ac_cv_path_install+set}" = set; then
 248     INSTALL="$ac_cv_path_install"
 249   else
 250     # As a last resort, use the slow shell script.  We don't cache a
 251     # path for INSTALL within a source directory, because that will
 252     # break other packages using the cache if that directory is
 253     # removed, or if the path is relative.
 254     INSTALL="$ac_install_sh"
 255   fi
 256 fi
 257 dnl We do special magic for INSTALL instead of AC_SUBST, to get
 258 dnl relative paths right.
 259 AC_MSG_RESULT($INSTALL)
 260 AC_SUBST(INSTALL)dnl
 261
 262 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
 263 # It thinks the first close brace ends the variable substitution.
 264 test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
 265 AC_SUBST(INSTALL_PROGRAM)dnl
 266
 267 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 268 AC_SUBST(INSTALL_DATA)dnl
 269 ])
 270
 271 #serial 1
 272 dnl This test replaces the one in autoconf.
 273 dnl Currently this macro should have the same name as the autoconf macro
 274 dnl because gettext's gettext.m4 (distributed in the automake package)
 275 dnl still uses it.  Otherwise, the use in gettext.m4 makes autoheader
 276 dnl give these diagnostics:
 277 dnl   configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX
 278 dnl   configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX
 279
 280 undefine([AC_ISC_POSIX])
 281 AC_DEFUN(AC_ISC_POSIX,
 282   [
 283     dnl This test replaces the obsolescent AC_ISC_POSIX kludge.
 284     AC_CHECK_LIB(cposix, strerror, [LIBS="$LIBS -lcposix"])
 285   ]
 286 )
 287
 288 # Macro to add for using GNU gettext.
 289 # Ulrich Drepper <drepper@cygnus.com>, 1995.
 290 #
 291 # This file can be copied and used freely without restrictions.  It can
 292 # be used in projects which are not available under the GNU Public License
 293 # but which still want to provide support for the GNU gettext functionality.
 294 # Please note that the actual code is *not* freely available.
 295
 296 # serial 5
 297
 298 AC_DEFUN(AM_WITH_NLS,
 299   [AC_MSG_CHECKING([whether NLS is requested])
 300     dnl Default is enabled NLS
 301     AC_ARG_ENABLE(nls,
 302       [  --disable-nls           do not use Native Language Support],
 303       USE_NLS=$enableval, USE_NLS=yes)
 304     AC_MSG_RESULT($USE_NLS)
 305     AC_SUBST(USE_NLS)
 306
 307     USE_INCLUDED_LIBINTL=no
 308
 309     dnl If we use NLS figure out what method
 310     if test "$USE_NLS" = "yes"; then
 311       AC_DEFINE(ENABLE_NLS)
 312       AC_MSG_CHECKING([whether included gettext is requested])
 313       AC_ARG_WITH(included-gettext,
 314         [  --with-included-gettext use the GNU gettext library included here],
 315         nls_cv_force_use_gnu_gettext=$withval,
 316         nls_cv_force_use_gnu_gettext=no)
 317       AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
 318
 319       nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
 320       if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
 321         dnl User does not insist on using GNU NLS library.  Figure out what
 322         dnl to use.  If gettext or catgets are available (in this order) we
 323         dnl use this.  Else we have to fall back to GNU NLS library.
 324         dnl catgets is only used if permitted by option --with-catgets.
 325         nls_cv_header_intl=
 326         nls_cv_header_libgt=
 327         CATOBJEXT=NONE
 328
 329         AC_CHECK_HEADER(libintl.h,
 330           [AC_CACHE_CHECK([for gettext in libc], gt_cv_func_gettext_libc,
 331             [AC_TRY_LINK([#include <libintl.h>], [return (int) gettext ("")],
 332                gt_cv_func_gettext_libc=yes, gt_cv_func_gettext_libc=no)])
 333
 334            if test "$gt_cv_func_gettext_libc" != "yes"; then
 335              AC_CHECK_LIB(intl, bindtextdomain,
 336                [AC_CACHE_CHECK([for gettext in libintl],
 337                  gt_cv_func_gettext_libintl,
 338                  [AC_CHECK_LIB(intl, gettext,
 339                   gt_cv_func_gettext_libintl=yes,
 340                   gt_cv_func_gettext_libintl=no)],
 341                  gt_cv_func_gettext_libintl=no)])
 342            fi
 343
 344            if test "$gt_cv_func_gettext_libc" = "yes" \
 345               || test "$gt_cv_func_gettext_libintl" = "yes"; then
 346               AC_DEFINE(HAVE_GETTEXT)
 347               AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
 348                 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)dnl
 349               if test "$MSGFMT" != "no"; then
 350                 AC_CHECK_FUNCS(dcgettext)
 351                 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
 352                 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
 353                   [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
 354                 AC_TRY_LINK(, [extern int _nl_msg_cat_cntr;
 355                                return _nl_msg_cat_cntr],
 356                   [CATOBJEXT=.gmo
 357                    DATADIRNAME=share],
 358                   [CATOBJEXT=.mo
 359                    DATADIRNAME=lib])
 360                 INSTOBJEXT=.mo
 361               fi
 362             fi
 363         ])
 364
 365         if test "$CATOBJEXT" = "NONE"; then
 366           AC_MSG_CHECKING([whether catgets can be used])
 367           AC_ARG_WITH(catgets,
 368             [  --with-catgets          use catgets functions if available],
 369             nls_cv_use_catgets=$withval, nls_cv_use_catgets=no)
 370           AC_MSG_RESULT($nls_cv_use_catgets)
 371
 372           if test "$nls_cv_use_catgets" = "yes"; then
 373             dnl No gettext in C library.  Try catgets next.
 374             AC_CHECK_LIB(i, main)
 375             AC_CHECK_FUNC(catgets,
 376               [AC_DEFINE(HAVE_CATGETS)
 377                INTLOBJS="\$(CATOBJS)"
 378                AC_PATH_PROG(GENCAT, gencat, no)dnl
 379                if test "$GENCAT" != "no"; then
 380                  AC_PATH_PROG(GMSGFMT, gmsgfmt, no)
 381                  if test "$GMSGFMT" = "no"; then
 382                    AM_PATH_PROG_WITH_TEST(GMSGFMT, msgfmt,
 383                     [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)
 384                  fi
 385                  AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
 386                    [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
 387                  USE_INCLUDED_LIBINTL=yes
 388                  CATOBJEXT=.cat
 389                  INSTOBJEXT=.cat
 390                  DATADIRNAME=lib
 391                  INTLDEPS='$(top_builddir)/intl/libintl.a'
 392                  INTLLIBS=$INTLDEPS
 393                  LIBS=`echo $LIBS | sed -e 's/-lintl//'`
 394                  nls_cv_header_intl=intl/libintl.h
 395                  nls_cv_header_libgt=intl/libgettext.h
 396                fi])
 397           fi
 398         fi
 399
 400         if test "$CATOBJEXT" = "NONE"; then
 401           dnl Neither gettext nor catgets in included in the C library.
 402           dnl Fall back on GNU gettext library.
 403           nls_cv_use_gnu_gettext=yes
 404         fi
 405       fi
 406
 407       if test "$nls_cv_use_gnu_gettext" = "yes"; then
 408         dnl Mark actions used to generate GNU NLS library.
 409         INTLOBJS="\$(GETTOBJS)"
 410         AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
 411           [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], msgfmt)
 412         AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
 413         AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
 414           [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
 415         AC_SUBST(MSGFMT)
 416         USE_INCLUDED_LIBINTL=yes
 417         CATOBJEXT=.gmo
 418         INSTOBJEXT=.mo
 419         DATADIRNAME=share
 420         INTLDEPS='$(top_builddir)/intl/libintl.a'
 421         INTLLIBS=$INTLDEPS
 422         LIBS=`echo $LIBS | sed -e 's/-lintl//'`
 423         nls_cv_header_intl=intl/libintl.h
 424         nls_cv_header_libgt=intl/libgettext.h
 425       fi
 426
 427       dnl Test whether we really found GNU xgettext.
 428       if test "$XGETTEXT" != ":"; then
 429         dnl If it is no GNU xgettext we define it as : so that the
 430         dnl Makefiles still can work.
 431         if $XGETTEXT --omit-header /dev/null 2> /dev/null; then
 432           : ;
 433         else
 434           AC_MSG_RESULT(
 435             [found xgettext program is not GNU xgettext; ignore it])
 436           XGETTEXT=":"
 437         fi
 438       fi
 439
 440       # We need to process the po/ directory.
 441       POSUB=po
 442     else
 443       DATADIRNAME=share
 444       nls_cv_header_intl=intl/libintl.h
 445       nls_cv_header_libgt=intl/libgettext.h
 446     fi
 447     AC_LINK_FILES($nls_cv_header_libgt, $nls_cv_header_intl)
 448     AC_OUTPUT_COMMANDS(
 449      [case "$CONFIG_FILES" in *po/Makefile.in*)
 450         sed -e "/POTFILES =/r po/POTFILES" po/Makefile.in > po/Makefile
 451       esac])
 452
 453
 454     # If this is used in GNU gettext we have to set USE_NLS to `yes'
 455     # because some of the sources are only built for this goal.
 456     if test "$PACKAGE" = gettext; then
 457       USE_NLS=yes
 458       USE_INCLUDED_LIBINTL=yes
 459     fi
 460
 461     dnl These rules are solely for the distribution goal.  While doing this
 462     dnl we only have to keep exactly one list of the available catalogs
 463     dnl in configure.in.
 464     for lang in $ALL_LINGUAS; do
 465       GMOFILES="$GMOFILES $lang.gmo"
 466       POFILES="$POFILES $lang.po"
 467     done
 468
 469     dnl Make all variables we use known to autoconf.
 470     AC_SUBST(USE_INCLUDED_LIBINTL)
 471     AC_SUBST(CATALOGS)
 472     AC_SUBST(CATOBJEXT)
 473     AC_SUBST(DATADIRNAME)
 474     AC_SUBST(GMOFILES)
 475     AC_SUBST(INSTOBJEXT)
 476     AC_SUBST(INTLDEPS)
 477     AC_SUBST(INTLLIBS)
 478     AC_SUBST(INTLOBJS)
 479     AC_SUBST(POFILES)
 480     AC_SUBST(POSUB)
 481   ])
 482
 483 AC_DEFUN(AM_GNU_GETTEXT,
 484   [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 485    AC_REQUIRE([AC_PROG_CC])dnl
 486    AC_REQUIRE([AC_PROG_RANLIB])dnl
 487    AC_REQUIRE([AC_ISC_POSIX])dnl
 488    AC_REQUIRE([AC_HEADER_STDC])dnl
 489    AC_REQUIRE([AC_C_CONST])dnl
 490    AC_REQUIRE([AC_C_INLINE])dnl
 491    AC_REQUIRE([AC_TYPE_OFF_T])dnl
 492    AC_REQUIRE([AC_TYPE_SIZE_T])dnl
 493    AC_REQUIRE([AC_FUNC_ALLOCA])dnl
 494
 495    AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h string.h \
 496 unistd.h sys/param.h])
 497    AC_CHECK_FUNCS([getcwd munmap putenv setenv setlocale strchr strcasecmp \
 498 strdup __argz_count __argz_stringify __argz_next])
 499
 500    if test "${ac_cv_func_stpcpy+set}" != "set"; then
 501      AC_CHECK_FUNCS(stpcpy)
 502    fi
 503    if test "${ac_cv_func_stpcpy}" = "yes"; then
 504      AC_DEFINE(HAVE_STPCPY)
 505    fi
 506
 507    AM_LC_MESSAGES
 508    AM_WITH_NLS
 509
 510    if test "x$CATOBJEXT" != "x"; then
 511      if test "x$ALL_LINGUAS" = "x"; then
 512        LINGUAS=
 513      else
 514        AC_MSG_CHECKING(for catalogs to be installed)
 515        NEW_LINGUAS=
 516        for lang in ${LINGUAS=$ALL_LINGUAS}; do
 517          case "$ALL_LINGUAS" in
 518           *$lang*) NEW_LINGUAS="$NEW_LINGUAS $lang" ;;
 519          esac
 520        done
 521        LINGUAS=$NEW_LINGUAS
 522        AC_MSG_RESULT($LINGUAS)
 523      fi
 524
 525      dnl Construct list of names of catalog files to be constructed.
 526      if test -n "$LINGUAS"; then
 527        for lang in $LINGUAS; do CATALOGS="$CATALOGS $lang$CATOBJEXT"; done
 528      fi
 529    fi
 530
 531    dnl The reference to <locale.h> in the installed <libintl.h> file
 532    dnl must be resolved because we cannot expect the users of this
 533    dnl to define HAVE_LOCALE_H.
 534    if test $ac_cv_header_locale_h = yes; then
 535      INCLUDE_LOCALE_H="#include <locale.h>"
 536    else
 537      INCLUDE_LOCALE_H="\
 538 /* The system does not provide the header <locale.h>.  Take care yourself.  */"
 539    fi
 540    AC_SUBST(INCLUDE_LOCALE_H)
 541
 542    dnl Determine which catalog format we have (if any is needed)
 543    dnl For now we know about two different formats:
 544    dnl   Linux libc-5 and the normal X/Open format
 545    test -d intl || mkdir intl
 546    if test "$CATOBJEXT" = ".cat"; then
 547      AC_CHECK_HEADER(linux/version.h, msgformat=linux, msgformat=xopen)
 548
 549      dnl Transform the SED scripts while copying because some dumb SEDs
 550      dnl cannot handle comments.
 551      sed -e '/^#/d' $srcdir/intl/$msgformat-msg.sed > intl/po2msg.sed
 552    fi
 553    dnl po2tbl.sed is always needed.
 554    sed -e '/^#.*[^\\]$/d' -e '/^#$/d' \
 555      $srcdir/intl/po2tbl.sed.in > intl/po2tbl.sed
 556
 557    dnl In the intl/Makefile.in we have a special dependency which makes
 558    dnl only sense for gettext.  We comment this out for non-gettext
 559    dnl packages.
 560    if test "$PACKAGE" = "gettext"; then
 561      GT_NO="#NO#"
 562      GT_YES=
 563    else
 564      GT_NO=
 565      GT_YES="#YES#"
 566    fi
 567    AC_SUBST(GT_NO)
 568    AC_SUBST(GT_YES)
 569
 570    dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
 571    dnl find the mkinstalldirs script in another subdir but ($top_srcdir).
 572    dnl Try to locate is.
 573    MKINSTALLDIRS=
 574    if test -n "$ac_aux_dir"; then
 575      MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
 576    fi
 577    if test -z "$MKINSTALLDIRS"; then
 578      MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
 579    fi
 580    AC_SUBST(MKINSTALLDIRS)
 581
 582    dnl *** For now the libtool support in intl/Makefile is not for real.
 583    l=
 584    AC_SUBST(l)
 585
 586    dnl Generate list of files to be processed by xgettext which will
 587    dnl be included in po/Makefile.
 588    test -d po || mkdir po
 589    if test "x$srcdir" != "x."; then
 590      if test "x`echo $srcdir | sed 's@/.*@@'`" = "x"; then
 591        posrcprefix="$srcdir/"
 592      else
 593        posrcprefix="../$srcdir/"
 594      fi
 595    else
 596      posrcprefix="../"
 597    fi
 598    rm -f po/POTFILES
 599    sed -e "/^#/d" -e "/^\$/d" -e "s,.*, $posrcprefix& \\\\," -e "\$s/\(.*\) \\\\/\1/" \
 600         < $srcdir/po/POTFILES.in > po/POTFILES
 601   ])
 602
 603 # Check whether LC_MESSAGES is available in <locale.h>.
 604 # Ulrich Drepper <drepper@cygnus.com>, 1995.
 605 #
 606 # This file can be copied and used freely without restrictions.  It can
 607 # be used in projects which are not available under the GNU Public License
 608 # but which still want to provide support for the GNU gettext functionality.
 609 # Please note that the actual code is *not* freely available.
 610
 611 # serial 1
 612
 613 AC_DEFUN(AM_LC_MESSAGES,
 614   [if test $ac_cv_header_locale_h = yes; then
 615     AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
 616       [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
 617        am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
 618     if test $am_cv_val_LC_MESSAGES = yes; then
 619       AC_DEFINE(HAVE_LC_MESSAGES)
 620     fi
 621   fi])
 622
 623 # Search path for a program which passes the given test.
 624 # Ulrich Drepper <drepper@cygnus.com>, 1996.
 625 #
 626 # This file can be copied and used freely without restrictions.  It can
 627 # be used in projects which are not available under the GNU Public License
 628 # but which still want to provide support for the GNU gettext functionality.
 629 # Please note that the actual code is *not* freely available.
 630
 631 # serial 1
 632
 633 dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
 634 dnl   TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
 635 AC_DEFUN(AM_PATH_PROG_WITH_TEST,
 636 [# Extract the first word of "$2", so it can be a program name with args.
 637 set dummy $2; ac_word=[$]2
 638 AC_MSG_CHECKING([for $ac_word])
 639 AC_CACHE_VAL(ac_cv_path_$1,
 640 [case "[$]$1" in
 641   /*)
 642   ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
 643   ;;
 644   *)
 645   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
 646   for ac_dir in ifelse([$5], , $PATH, [$5]); do
 647     test -z "$ac_dir" && ac_dir=.
 648     if test -f $ac_dir/$ac_word; then
 649       if [$3]; then
 650         ac_cv_path_$1="$ac_dir/$ac_word"
 651         break
 652       fi
 653     fi
 654   done
 655   IFS="$ac_save_ifs"
 656 dnl If no 4th arg is given, leave the cache variable unset,
 657 dnl so AC_PATH_PROGS will keep looking.
 658 ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
 659 ])dnl
 660   ;;
 661 esac])dnl
 662 $1="$ac_cv_path_$1"
 663 if test -n "[$]$1"; then
 664   AC_MSG_RESULT([$]$1)
 665 else
 666   AC_MSG_RESULT(no)
 667 fi
 668 AC_SUBST($1)dnl
 669 ])
 670
 671 # Check whether mmap can map an arbitrary page from /dev/zero, without
 672 # MAP_FIXED.
 673 AC_DEFUN([AC_FUNC_MMAP_ANYWHERE],
 674 [AC_CHECK_HEADERS(unistd.h)
 675 AC_CHECK_FUNCS(getpagesize)
 676 AC_CACHE_CHECK(for working mmap from /dev/zero, ac_cv_func_mmap_anywhere,
 677 [AC_TRY_RUN([
 678 /* Test by Richard Henderson and Alexandre Oliva.
 679    Check whether mmap from /dev/zero works. */
 680 #include <sys/types.h>
 681 #include <fcntl.h>
 682 #include <sys/mman.h>
 683
 684 /* This mess was copied from the GNU getpagesize.h.  */
 685 #ifndef HAVE_GETPAGESIZE
 686 # ifdef HAVE_UNISTD_H
 687 #  include <unistd.h>
 688 # endif
 689
 690 /* Assume that all systems that can run configure have sys/param.h.  */
 691 # ifndef HAVE_SYS_PARAM_H
 692 #  define HAVE_SYS_PARAM_H 1
 693 # endif
 694
 695 # ifdef _SC_PAGESIZE
 696 #  define getpagesize() sysconf(_SC_PAGESIZE)
 697 # else /* no _SC_PAGESIZE */
 698 #  ifdef HAVE_SYS_PARAM_H
 699 #   include <sys/param.h>
 700 #   ifdef EXEC_PAGESIZE
 701 #    define getpagesize() EXEC_PAGESIZE
 702 #   else /* no EXEC_PAGESIZE */
 703 #    ifdef NBPG
 704 #     define getpagesize() NBPG * CLSIZE
 705 #     ifndef CLSIZE
 706 #      define CLSIZE 1
 707 #     endif /* no CLSIZE */
 708 #    else /* no NBPG */
 709 #     ifdef NBPC
 710 #      define getpagesize() NBPC
 711 #     else /* no NBPC */
 712 #      ifdef PAGESIZE
 713 #       define getpagesize() PAGESIZE
 714 #      endif /* PAGESIZE */
 715 #     endif /* no NBPC */
 716 #    endif /* no NBPG */
 717 #   endif /* no EXEC_PAGESIZE */
 718 #  else /* no HAVE_SYS_PARAM_H */
 719 #   define getpagesize() 8192   /* punt totally */
 720 #  endif /* no HAVE_SYS_PARAM_H */
 721 # endif /* no _SC_PAGESIZE */
 722
 723 #endif /* no HAVE_GETPAGESIZE */
 724
 725 int main()
 726 {
 727   char *x;
 728   int fd, pg;
 729
 730   fd = open("/dev/zero", O_RDWR);
 731   if (fd < 0)
 732     exit(1);
 733
 734   pg = getpagesize();
 735   x = (char*)mmap(0, pg, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
 736   if (x == (char *) -1)
 737     exit(2);
 738
 739   *(int *)x += 1;
 740
 741   if (munmap(x, pg) < 0)
 742     exit(3);
 743
 744   exit(0);
 745 }], ac_cv_func_mmap_anywhere=yes, ac_cv_func_mmap_anywhere=no,
 746 ac_cv_func_mmap_anywhere=no)])
 747 if test $ac_cv_func_mmap_anywhere = yes; then
 748   AC_DEFINE(HAVE_MMAP_ANYWHERE, 1,
 749             [Define if mmap can get us zeroed pages from /dev/zero.])
 750 fi
 751 ])
 752
 753 # Check whether mmap can map a plain file, without MAP_FIXED.
 754 AC_DEFUN([AC_FUNC_MMAP_FILE],
 755 [AC_REQUIRE([AC_FUNC_MMAP_ANYWHERE])dnl
 756 AC_CACHE_CHECK(for working mmap of a file, ac_cv_func_mmap_file,
 757 [# Create a file one thousand bytes long.
 758 for i in 1 2 3 4 5 6 7 8 9 0
 759 do for j in 1 2 3 4 5 6 7 8 9 0
 760 do echo $i $j xxxxx
 761 done
 762 done > conftestdata$$
 763
 764 AC_TRY_RUN([
 765 /* Test by Zack Weinberg.  Modified from MMAP_ANYWHERE test by
 766    Richard Henderson and Alexandre Oliva.
 767    Check whether read-only mmap of a plain file works. */
 768 #include <sys/types.h>
 769 #include <sys/stat.h>
 770 #include <fcntl.h>
 771 #include <sys/mman.h>
 772
 773 int main()
 774 {
 775   char *x;
 776   int fd;
 777   struct stat st;
 778
 779   fd = open("conftestdata$$", O_RDONLY);
 780   if (fd < 0)
 781     exit(1);
 782
 783   if (fstat (fd, &st))
 784     exit(2);
 785
 786   x = (char*)mmap(0, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
 787   if (x == (char *) -1)
 788     exit(3);
 789
 790   if (x[0] != '1' || x[1] != ' ' || x[2] != '1' || x[3] != ' ')
 791     exit(4);
 792
 793   if (munmap(x, st.st_size) < 0)
 794     exit(5);
 795
 796   exit(0);
 797 }], ac_cv_func_mmap_file=yes, ac_cv_func_mmap_file=no,
 798 ac_cv_func_mmap_file=no)])
 799 if test $ac_cv_func_mmap_file = yes; then
 800   AC_DEFINE(HAVE_MMAP_FILE, 1,
 801             [Define if read-only mmap of a plain file works.])
 802 fi
 803 ])
 804
 805 dnl Locate a program and check that its version is acceptable.
 806 dnl AC_PROG_CHECK_VER(var, name, version-switch,
 807 dnl                  version-extract-regexp, version-glob)
 808 AC_DEFUN(gcc_AC_CHECK_PROG_VER,
 809 [AC_CHECK_PROG([$1], [$2], [$2])
 810 if test -n "[$]$1"; then
 811   # Found it, now check the version.
 812   AC_CACHE_CHECK(for modern $2, gcc_cv_prog_$2_modern,
 813 [changequote(<<,>>)dnl
 814   ac_prog_version=`<<$>>$1 $3 2>&1 |
 815                    sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'`
 816   echo "configure:__oline__: version of $2 is $ac_prog_version" >&AC_FD_CC
 817   case $ac_prog_version in
 818     '')     gcc_cv_prog_$2_modern=no;;
 819     <<$5>>)
 820             gcc_cv_prog_$2_modern=yes;;
 821     *)      gcc_cv_prog_$2_modern=no;;
 822   esac
 823 changequote([,])dnl
 824 ])
 825 else
 826   gcc_cv_prog_$2_modern=no
 827 fi
 828 ])