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 sinclude(acx_configure_dir.m4)
   5
   6 dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition.
   7 sinclude(../bfd/bfd.m4)
   8
   9 dnl This gets the standard macros
  10 sinclude(../config/acinclude.m4)
  11
  12 dnl This gets autoconf bugfixes
  13 sinclude(../config/override.m4)
  14
  15 sinclude(../config/gettext-sister.m4)
  16
  17 dnl For AC_LIB_HAVE_LINKFLAGS.
  18 sinclude(../config/lib-ld.m4)
  19 sinclude(../config/lib-prefix.m4)
  20 sinclude(../config/lib-link.m4)
  21
  22 dnl For ACX_PKGVERSION and ACX_BUGURL.
  23 sinclude(../config/acx.m4)
  24
  25 dnl for TCL definitions
  26 sinclude(../config/tcl.m4)
  27
  28 dnl For dependency tracking macros.
  29 sinclude([../config/depstand.m4])
  30
  31 dnl For AM_LC_MESSAGES
  32 sinclude([../config/lcmessage.m4])
  33
  34 dnl For AM_LANGINFO_CODESET.
  35 sinclude([../config/codeset.m4])
  36
  37 sinclude([../config/zlib.m4])
  38
  39 ## ----------------------------------------- ##
  40 ## ANSIfy the C compiler whenever possible.  ##
  41 ## From Franc,ois Pinard                     ##
  42 ## ----------------------------------------- ##
  43
  44 # Copyright (C) 1996, 1997, 1999, 2000, 2001, 2008, 2009
  45 #  Free Software Foundation, Inc.
  46
  47 # This program is free software; you can redistribute it and/or modify
  48 # it under the terms of the GNU General Public License as published by
  49 # the Free Software Foundation; either version 2, or (at your option)
  50 # any later version.
  51
  52 # This program is distributed in the hope that it will be useful,
  53 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  54 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  55 # GNU General Public License for more details.
  56
  57 # You should have received a copy of the GNU General Public License
  58 # along with this program; if not, write to the Free Software
  59 # Foundation, Inc., 51 Franklin Street, Fifth Floor,
  60 # Boston, MA 02110-1301, USA.
  61
  62 # serial 1
  63
  64 # @defmac AC_PROG_CC_STDC
  65 # @maindex PROG_CC_STDC
  66 # @ovindex CC
  67 # If the C compiler in not in ANSI C mode by default, try to add an option
  68 # to output variable @code{CC} to make it so.  This macro tries various
  69 # options that select ANSI C on some system or another.  It considers the
  70 # compiler to be in ANSI C mode if it handles function prototypes correctly.
  71 #
  72 # If you use this macro, you should check after calling it whether the C
  73 # compiler has been set to accept ANSI C; if not, the shell variable
  74 # @code{am_cv_prog_cc_stdc} is set to @samp{no}.  If you wrote your source
  75 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
  76 # program @code{ansi2knr}, which comes with Ghostscript.
  77 # @end defmac
  78
  79 AC_DEFUN([AM_PROG_CC_STDC],
  80 [AC_REQUIRE([AC_PROG_CC])
  81 AC_BEFORE([$0], [AC_C_INLINE])
  82 AC_BEFORE([$0], [AC_C_CONST])
  83 dnl Force this before AC_PROG_CPP.  Some cpp's, eg on HPUX, require
  84 dnl a magic option to avoid problems with ANSI preprocessor commands
  85 dnl like #elif.
  86 dnl FIXME: can't do this because then AC_AIX won't work due to a
  87 dnl circular dependency.
  88 dnl AC_BEFORE([$0], [AC_PROG_CPP])
  89 AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
  90 AC_CACHE_VAL(am_cv_prog_cc_stdc,
  91 [am_cv_prog_cc_stdc=no
  92 ac_save_CC="$CC"
  93 # Don't try gcc -ansi; that turns off useful extensions and
  94 # breaks some systems' header files.
  95 # AIX                   -qlanglvl=ansi
  96 # Ultrix and OSF/1      -std1
  97 # HP-UX 10.20 and later -Ae
  98 # HP-UX older versions  -Aa -D_HPUX_SOURCE
  99 # SVR4                  -Xc -D__EXTENSIONS__
 100 for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 101 do
 102   CC="$ac_save_CC $ac_arg"
 103   AC_TRY_COMPILE(
 104 [#include <stdarg.h>
 105 #include <stdio.h>
 106 #include <sys/types.h>
 107 #include <sys/stat.h>
 108 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
 109 struct buf { int x; };
 110 FILE * (*rcsopen) (struct buf *, struct stat *, int);
 111 static char *e (p, i)
 112      char **p;
 113      int i;
 114 {
 115   return p[i];
 116 }
 117 static char *f (char * (*g) (char **, int), char **p, ...)
 118 {
 119   char *s;
 120   va_list v;
 121   va_start (v,p);
 122   s = g (p, va_arg (v,int));
 123   va_end (v);
 124   return s;
 125 }
 126 int test (int i, double x);
 127 struct s1 {int (*f) (int a);};
 128 struct s2 {int (*f) (double a);};
 129 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
 130 int argc;
 131 char **argv;
 132 ], [
 133 return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
 134 ],
 135 [am_cv_prog_cc_stdc="$ac_arg"; break])
 136 done
 137 CC="$ac_save_CC"
 138 ])
 139 if test -z "$am_cv_prog_cc_stdc"; then
 140   AC_MSG_RESULT([none needed])
 141 else
 142   AC_MSG_RESULT([$am_cv_prog_cc_stdc])
 143 fi
 144 case "x$am_cv_prog_cc_stdc" in
 145   x|xno) ;;
 146   *) CC="$CC $am_cv_prog_cc_stdc" ;;
 147 esac
 148 ])
 149
 150 dnl Originally from Bruno Haible, but with some modifications
 151 dnl for the GDB project.
 152
 153 AC_DEFUN([AM_ICONV],
 154 [
 155   dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
 156   dnl those with the standalone portable GNU libiconv installed).
 157
 158   AC_ARG_WITH([libiconv-prefix],
 159     AS_HELP_STRING([--with-libiconv-prefix=DIR], [search for libiconv in DIR/include and DIR/lib]), [
 160     for dir in `echo "$withval" | tr : ' '`; do
 161       if test -d $dir/include; then LIBICONV_INCLUDE="-I$dir/include"; fi
 162       if test -d $dir/lib; then LIBICONV_LIBDIR="-L$dir/lib"; fi
 163     done
 164    ])
 165
 166   BUILD_LIBICONV_LIBDIRS="../libiconv/lib/.libs ../libiconv/lib/_libs"
 167   BUILD_LIBICONV_INCLUDE="-I../libiconv/include"
 168
 169   AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
 170     am_cv_func_iconv="no, consider installing GNU libiconv"
 171     am_cv_lib_iconv=no
 172     am_cv_use_build_libiconv=no
 173     am_cv_build_libiconv_path=
 174
 175     # If libiconv is part of the build tree, then try using it over
 176     # any system iconv.
 177     if test -d ../libiconv; then
 178       for lib_dir in $BUILD_LIBICONV_LIBDIRS; do
 179         am_save_LIBS="$LIBS"
 180         am_save_CPPFLAGS="$CPPFLAGS"
 181         LIBS="$LIBS $lib_dir/libiconv.a"
 182         CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
 183         AC_TRY_LINK([#include <stdlib.h>
 184 #include <iconv.h>],
 185           [iconv_t cd = iconv_open("","");
 186            iconv(cd,NULL,NULL,NULL,NULL);
 187            iconv_close(cd);],
 188           am_cv_use_build_libiconv=yes
 189           am_cv_build_libiconv_path=$lib_dir/libiconv.a
 190           am_cv_lib_iconv=yes
 191           am_cv_func_iconv=yes)
 192         LIBS="$am_save_LIBS"
 193         CPPFLAGS="$am_save_CPPFLAGS"
 194         if test "$am_cv_use_build_libiconv" = "yes"; then
 195           break
 196         fi
 197       done
 198     fi
 199
 200     # Next, try to find iconv in libc.
 201     if test "$am_cv_func_iconv" != yes; then
 202       AC_TRY_LINK([#include <stdlib.h>
 203 #include <iconv.h>],
 204         [iconv_t cd = iconv_open("","");
 205          iconv(cd,NULL,NULL,NULL,NULL);
 206          iconv_close(cd);],
 207         am_cv_func_iconv=yes)
 208     fi
 209
 210     # If iconv was not in libc, try -liconv.  In this case, arrange to
 211     # look in the libiconv prefix, if it was specified by the user.
 212     if test "$am_cv_func_iconv" != yes; then
 213       am_save_CPPFLAGS="$CPPFLAGS"
 214       am_save_LIBS="$LIBS"
 215       if test -n "$LIBICONV_INCLUDE"; then
 216         CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
 217         LIBS="$LIBS $LIBICONV_LIBDIR"
 218       fi
 219       LIBS="$LIBS -liconv"
 220       AC_TRY_LINK([#include <stdlib.h>
 221 #include <iconv.h>],
 222         [iconv_t cd = iconv_open("","");
 223          iconv(cd,NULL,NULL,NULL,NULL);
 224          iconv_close(cd);],
 225         am_cv_lib_iconv=yes
 226         am_cv_func_iconv=yes)
 227       LIBS="$am_save_LIBS"
 228       CPPFLAGS="$am_save_CPPFLAGS"
 229     fi
 230   ])
 231
 232   # Set the various flags based on the cache variables.  We can't rely
 233   # on the flags to remain set from the above code, due to caching.
 234   LIBICONV=
 235   if test "$am_cv_lib_iconv" = yes; then
 236     LIBICONV="-liconv"
 237   else
 238     LIBICONV_LIBDIR=
 239     LIBICONV_INCLUDE=
 240   fi
 241   if test "$am_cv_use_build_libiconv" = yes; then
 242     LIBICONV="$am_cv_build_libiconv_path"
 243     LIBICONV_LIBDIR=""
 244     LIBICONV_INCLUDE="$BUILD_LIBICONV_INCLUDE"
 245   fi
 246   CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
 247   LIBS="$LIBS $LIBICONV_LIBDIR $LIBICONV"
 248
 249   if test "$am_cv_func_iconv" = yes; then
 250     AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
 251     AC_MSG_CHECKING([for iconv declaration])
 252     AC_CACHE_VAL(am_cv_proto_iconv, [
 253       AC_TRY_COMPILE([
 254 #include <stdlib.h>
 255 #include <iconv.h>
 256 extern
 257 #ifdef __cplusplus
 258 "C"
 259 #endif
 260 #if defined(__STDC__) || defined(__cplusplus)
 261 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
 262 #else
 263 size_t iconv();
 264 #endif
 265 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
 266       am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
 267     am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
 268     AC_MSG_RESULT([$]{ac_t:-
 269          }[$]am_cv_proto_iconv)
 270     AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
 271       [Define as const if the declaration of iconv() needs const.])
 272   fi
 273 ])
 274
 275 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
 276 dnl Version 1.3 (2001/03/02)
 277 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
 278
 279 AC_DEFUN([AC_DEFINE_DIR], [
 280   test "x$prefix" = xNONE && prefix="$ac_default_prefix"
 281   test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
 282   ac_define_dir=`eval echo [$]$2`
 283   ac_define_dir=`eval echo [$]ac_define_dir`
 284   ifelse($3, ,
 285     AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
 286     AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
 287 ])
 288
 289 dnl See whether we need a declaration for a function.
 290 dnl The result is highly dependent on the INCLUDES passed in, so make sure
 291 dnl to use a different cache variable name in this macro if it is invoked
 292 dnl in a different context somewhere else.
 293 dnl gcc_AC_CHECK_DECL(SYMBOL,
 294 dnl     [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
 295 AC_DEFUN([gcc_AC_CHECK_DECL],
 296 [AC_MSG_CHECKING([whether $1 is declared])
 297 AC_CACHE_VAL(gcc_cv_have_decl_$1,
 298 [AC_TRY_COMPILE([$4],
 299 [#ifndef $1
 300 char *(*pfn) = (char *(*)) $1 ;
 301 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
 302 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
 303   AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
 304 else
 305   AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
 306 fi
 307 ])dnl
 308
 309 dnl Check multiple functions to see whether each needs a declaration.
 310 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
 311 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
 312 dnl     [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
 313 AC_DEFUN([gcc_AC_CHECK_DECLS],
 314 [for ac_func in $1
 315 do
 316 changequote(, )dnl
 317   ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
 318 changequote([, ])dnl
 319 gcc_AC_CHECK_DECL($ac_func,
 320   [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
 321   [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
 322 dnl It is possible that the include files passed in here are local headers
 323 dnl which supply a backup declaration for the relevant prototype based on
 324 dnl the definition of (or lack of) the HAVE_DECL_ macro.  If so, this test
 325 dnl will always return success.  E.g. see libiberty.h's handling of
 326 dnl `basename'.  To avoid this, we define the relevant HAVE_DECL_ macro to
 327 dnl 1 so that any local headers used do not provide their own prototype
 328 dnl during this test.
 329 #undef $ac_tr_decl
 330 #define $ac_tr_decl 1
 331   $4
 332 )
 333 done
 334 dnl Automatically generate config.h entries via autoheader.
 335 if test x = y ; then
 336   patsubst(translit([$1], [a-z], [A-Z]), [\w+],
 337     [AC_DEFINE([HAVE_DECL_\&], 1,
 338       [Define to 1 if we found this declaration otherwise define to 0.])])dnl
 339 fi
 340 ])
 341
 342 dnl Find the location of the private Tcl headers
 343 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
 344 dnl When Tcl is in the build tree, this is not needed.
 345 dnl
 346 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
 347 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
 348   AC_MSG_CHECKING([for Tcl private headers])
 349   private_dir=""
 350   dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
 351   if test -f ${dir}/tclInt.h ; then
 352     private_dir=${dir}
 353   fi
 354
 355   if test x"${private_dir}" = x; then
 356     AC_ERROR(could not find private Tcl headers)
 357   else
 358     TCL_PRIVATE_INCLUDE="-I${private_dir}"
 359     AC_MSG_RESULT(${private_dir})
 360   fi
 361 ])
 362
 363 dnl Find the location of the private Tk headers
 364 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
 365 dnl When Tk is in the build tree, this not needed.
 366 dnl
 367 dnl Note: you must first use SC_LOAD_TKCONFIG
 368 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
 369   AC_MSG_CHECKING([for Tk private headers])
 370   private_dir=""
 371   dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
 372   if test -f ${dir}/tkInt.h; then
 373     private_dir=${dir}
 374   fi
 375
 376   if test x"${private_dir}" = x; then
 377     AC_ERROR(could not find Tk private headers)
 378   else
 379     TK_PRIVATE_INCLUDE="-I${private_dir}"
 380     AC_MSG_RESULT(${private_dir})
 381   fi
 382 ])
 383
 384 dnl GDB_AC_DEFINE_RELOCATABLE([VARIABLE], [ARG-NAME], [SHELL-VARIABLE])
 385 dnl For use in processing directory values for --with-foo.
 386 dnl If the path in SHELL_VARIABLE is relative to the prefix, then the
 387 dnl result is relocatable, then this will define the C macro
 388 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
 389 AC_DEFUN([GDB_AC_DEFINE_RELOCATABLE], [
 390   if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
 391      if test "x$prefix" = xNONE; then
 392         test_prefix=/usr/local
 393      else
 394         test_prefix=$prefix
 395      fi
 396   else
 397      test_prefix=$exec_prefix
 398   fi
 399   value=0
 400   case [$3] in
 401      "${test_prefix}"|"${test_prefix}/"*|\
 402         '${exec_prefix}'|'${exec_prefix}/'*)
 403      value=1
 404      ;;
 405   esac
 406   AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])
 407 ])
 408
 409 dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
 410 dnl Add a new --with option that defines a directory.
 411 dnl The result is stored in VARIABLE.  AC_DEFINE_DIR is called
 412 dnl on this variable, as is AC_SUBST.
 413 dnl ARG-NAME is the base name of the argument (without "--with").
 414 dnl HELP is the help text to use.
 415 dnl If the user's choice is relative to the prefix, then the
 416 dnl result is relocatable, then this will define the C macro
 417 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
 418 dnl DEFAULT is the default value, which is used if the user
 419 dnl does not specify the argument.
 420 AC_DEFUN([GDB_AC_WITH_DIR], [
 421   AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
 422     [$1]=$withval], [[$1]=[$4]])
 423   AC_DEFINE_DIR([$1], [$1], [$3])
 424   AC_SUBST([$1])
 425   GDB_AC_DEFINE_RELOCATABLE([$1], [$2], ${ac_define_dir})
 426   ])