configure.in

   1 dnl   configuration script for Guile
   2 dnl   Process this file with autoconf to produce configure.
   3 dnl
   4
   5 define(GUILE_CONFIGURE_COPYRIGHT,[[
   6
   7 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   8
   9 This file is part of GUILE
  10
  11 GUILE is free software; you can redistribute it and/or modify it
  12 under the terms of the GNU General Public License as published by
  13 the Free Software Foundation; either version 2, or (at your
  14 option) any later version.
  15
  16 GUILE is distributed in the hope that it will be useful, but
  17 WITHOUT ANY WARRANTY; without even the implied warranty of
  18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19 General Public License for more details.
  20
  21 You should have received a copy of the GNU General Public License
  22 along with GUILE; see the file COPYING.  If not, write to the
  23 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  24 Boston, MA 02111-1307, USA.
  25
  26 ]])
  27
  28 AC_PREREQ(2.53)
  29
  30 AC_INIT(m4_esyscmd(. ./GUILE-VERSION && echo -n ${PACKAGE}),
  31         m4_esyscmd(. ./GUILE-VERSION && echo -n ${GUILE_VERSION}))
  32 AC_CONFIG_SRCDIR(GUILE-VERSION)
  33 AM_INIT_AUTOMAKE([no-define])
  34
  35 AC_COPYRIGHT(GUILE_CONFIGURE_COPYRIGHT)
  36 AC_CONFIG_SRCDIR([GUILE-VERSION])
  37
  38 . $srcdir/GUILE-VERSION
  39
  40 AM_MAINTAINER_MODE
  41 AM_CONFIG_HEADER([config.h])
  42 AH_TOP(/*GUILE_CONFIGURE_COPYRIGHT*/)
  43
  44 #--------------------------------------------------------------------
  45 #
  46 # Independent Subdirectories
  47 #
  48 #--------------------------------------------------------------------
  49
  50 AC_CONFIG_SUBDIRS(guile-readline)
  51
  52 #--------------------------------------------------------------------
  53
  54 dnl Some more checks for Win32
  55 AC_CYGWIN
  56 AC_MINGW32
  57 AC_LIBTOOL_WIN32_DLL
  58
  59 AC_PROG_INSTALL
  60 AC_PROG_CC
  61 AC_PROG_CPP
  62 AC_PROG_AWK
  63
  64 AC_AIX
  65 AC_ISC_POSIX
  66 AC_MINIX
  67
  68 AM_PROG_CC_STDC
  69
  70 AC_LIBTOOL_DLOPEN
  71 AC_PROG_LIBTOOL
  72 AC_LIB_LTDL
  73
  74 AC_CHECK_PROG(have_makeinfo, makeinfo, yes, no)
  75 AM_CONDITIONAL(HAVE_MAKEINFO, test "$have_makeinfo" = yes)
  76
  77 AM_PATH_LISPDIR
  78
  79 #--------------------------------------------------------------------
  80 #
  81 # User options (after above tests that may set default CFLAGS etc.)
  82 #
  83 #--------------------------------------------------------------------
  84
  85 GUILE_ERROR_ON_WARNING="yes"
  86
  87 AC_ARG_ENABLE(error-on-warning,
  88   [  --enable-error-on-warning    treat compile warnings as errors],
  89   [case "${enableval}" in
  90      yes | y) GUILE_ERROR_ON_WARNING="yes" ;;
  91      no | n)  GUILE_ERROR_ON_WARNING="no" ;;
  92      *) AC_MSG_ERROR(bad value ${enableval} for --enable-error-on-warning) ;;
  93    esac])
  94
  95 SCM_I_GSC_GUILE_DEBUG_FREELIST=0
  96 AC_ARG_ENABLE(debug-freelist,
  97   [  --enable-debug-freelist include garbage collector freelist debugging code],
  98   if test "$enable_debug_freelist" = y \
  99      || test "$enable_debug_freelist" = yes; then
 100     SCM_I_GSC_GUILE_DEBUG_FREELIST=1
 101   fi)
 102
 103 AC_ARG_ENABLE(debug-malloc,
 104   [  --enable-debug-malloc   include malloc debugging code],
 105   if test "$enable_debug_malloc" = y || test "$enable_debug_malloc" = yes; then
 106     AC_DEFINE(GUILE_DEBUG_MALLOC, 1,
 107       [Define this if you want to debug scm_must_malloc/realloc/free calls.])
 108   fi)
 109
 110 SCM_I_GSC_GUILE_DEBUG=0
 111 AC_ARG_ENABLE(guile-debug,
 112   [AC_HELP_STRING([--enable-guile-debug],
 113                   [include internal debugging functions])],
 114   if test "$enable_guile_debug" = y || test "$enable_guile_debug" = yes; then
 115     SCM_I_GSC_GUILE_DEBUG=1
 116   fi)
 117
 118 AC_ARG_ENABLE(arrays,
 119   [AC_HELP_STRING([--disable-arrays],[omit array and uniform array support])],
 120   ,
 121   enable_arrays=yes)
 122
 123 AC_ARG_ENABLE(posix,
 124   [  --disable-posix         omit posix interfaces],,
 125   enable_posix=yes)
 126
 127 AC_ARG_ENABLE(networking,
 128   [  --disable-networking    omit networking interfaces],,
 129   enable_networking=yes)
 130
 131 AC_ARG_ENABLE(regex,
 132   [  --disable-regex         omit regular expression interfaces],,
 133   enable_regex=yes)
 134
 135 AC_ARG_ENABLE([discouraged],
 136   AC_HELP_STRING([--disable-discouraged],[omit discouraged features]))
 137
 138 if test "$enable_discouraged" = no; then
 139   SCM_I_GSC_ENABLE_DISCOURAGED=0
 140 else
 141   SCM_I_GSC_ENABLE_DISCOURAGED=1
 142 fi
 143
 144 AC_ARG_ENABLE([deprecated],
 145   AC_HELP_STRING([--disable-deprecated],[omit deprecated features]))
 146
 147 if test "$enable_deprecated" = no; then
 148   SCM_I_GSC_ENABLE_DEPRECATED=0
 149 else
 150   if test "$enable_deprecated" = yes || test "$enable_deprecated" = ""; then
 151     warn_default=summary
 152   elif test "$enable_deprecated" = shutup; then
 153     warn_default=no
 154   else
 155     warn_default=$enable_deprecated
 156   fi
 157   SCM_I_GSC_ENABLE_DEPRECATED=1
 158   AC_DEFINE_UNQUOTED(SCM_WARN_DEPRECATED_DEFAULT, "$warn_default",
 159   [Define this to control the default warning level for deprecated features.])
 160 fi
 161
 162 AC_ARG_ENABLE(elisp,
 163   [  --disable-elisp         omit Emacs Lisp support],,
 164   enable_elisp=yes)
 165
 166 #--------------------------------------------------------------------
 167
 168 dnl Check for dynamic linking
 169
 170 use_modules=yes
 171 AC_ARG_WITH(modules,
 172 [  --with-modules[=FILES]  Add support for dynamic modules],
 173 use_modules="$withval")
 174 test -z "$use_modules" && use_modules=yes
 175 DLPREOPEN=
 176 if test "$use_modules" != no; then
 177   if test "$use_modules" = yes; then
 178     DLPREOPEN="-dlpreopen force"
 179   else
 180     DLPREOPEN="-export-dynamic"
 181     for module in $use_modules; do
 182       DLPREOPEN="$DLPREOPEN -dlopen $module"
 183     done
 184   fi
 185 fi
 186
 187 dnl files which are destined for separate modules.
 188
 189 if test "$use_modules" != no; then
 190    AC_LIBOBJ([dynl])
 191 fi
 192
 193 SCM_I_GSC_HAVE_ARRAYS=0
 194 if test "$enable_arrays" = yes; then
 195    AC_LIBOBJ([ramap])
 196    AC_LIBOBJ([unif])
 197    SCM_I_GSC_HAVE_ARRAYS=1
 198 fi
 199
 200 if test "$enable_posix" = yes; then
 201    AC_LIBOBJ([filesys])
 202    AC_LIBOBJ([posix])
 203    AC_DEFINE(HAVE_POSIX, 1,
 204      [Define this if you want support for POSIX system calls in Guile.])
 205 fi
 206
 207 if test "$enable_networking" = yes; then
 208    AC_LIBOBJ([net_db])
 209    AC_LIBOBJ([socket])
 210    AC_DEFINE(HAVE_NETWORKING, 1,
 211      [Define this if you want support for networking in Guile.])
 212 fi
 213
 214 if test "$enable_debug_malloc" = yes; then
 215    AC_LIBOBJ([debug-malloc])
 216 fi
 217
 218 if test "$enable_elisp" = yes; then
 219   SCM_I_GSC_ENABLE_ELISP=1
 220 else
 221   SCM_I_GSC_ENABLE_ELISP=0
 222 fi
 223
 224 AC_C_CONST
 225
 226 AC_C_INLINE
 227 if test "$ac_cv_c_inline" != no; then
 228   SCM_I_GSC_C_INLINE="\"${ac_cv_c_inline}\""
 229 else
 230   SCM_I_GSC_C_INLINE=NULL
 231 fi
 232
 233 AC_C_BIGENDIAN
 234
 235 AC_CHECK_SIZEOF(char)
 236 AC_CHECK_SIZEOF(unsigned char)
 237 AC_CHECK_SIZEOF(short)
 238 AC_CHECK_SIZEOF(unsigned short)
 239 AC_CHECK_SIZEOF(int)
 240 AC_CHECK_SIZEOF(unsigned int)
 241 AC_CHECK_SIZEOF(long)
 242 AC_CHECK_SIZEOF(unsigned long)
 243 AC_CHECK_SIZEOF(size_t)
 244 AC_CHECK_SIZEOF(long long)
 245 AC_CHECK_SIZEOF(unsigned long long)
 246 AC_CHECK_SIZEOF(__int64)
 247 AC_CHECK_SIZEOF(unsigned __int64)
 248 AC_CHECK_SIZEOF(void *)
 249 AC_CHECK_SIZEOF(intptr_t)
 250 AC_CHECK_SIZEOF(uintptr_t)
 251 AC_CHECK_SIZEOF(ptrdiff_t)
 252 AC_CHECK_SIZEOF(size_t)
 253
 254 if test "$ac_cv_sizeof_long" -ne "$ac_cv_sizeof_void_p"; then
 255   AC_MSG_ERROR(sizes of long and void* are not identical)
 256 fi
 257
 258 if test "$ac_cv_sizeof_ptrdiff_t" -ne 0; then
 259   SCM_I_GSC_T_PTRDIFF='"ptrdiff_t"'
 260 else
 261   SCM_I_GSC_T_PTRDIFF='"long"'
 262 fi
 263 AC_SUBST([SCM_I_GSC_T_PTRDIFF])
 264
 265 AC_CHECK_HEADERS([stdint.h])
 266 AC_CHECK_HEADERS([inttypes.h])
 267
 268 AC_CHECK_SIZEOF(intmax_t)
 269
 270 SCM_I_GSC_NEEDS_STDINT_H=0
 271 SCM_I_GSC_NEEDS_INTTYPES_H=0
 272
 273 ### intptr and uintptr (try not to use inttypes if we don't have to)
 274 if test "$ac_cv_header_inttypes_h" = yes; then
 275   if test "$ac_cv_sizeof_intptr_t" -eq 0; then
 276     AC_CHECK_SIZEOF([intptr_t],,[#include <inttypes.h>
 277 #include <stdio.h>])
 278     if test "$ac_cv_sizeof_intptr_t" -ne 0; then
 279       SCM_I_GSC_NEEDS_INTTYPES_H=1
 280     fi
 281   fi
 282   if test "$ac_cv_sizeof_uintptr_t" -eq 0; then
 283     AC_CHECK_SIZEOF([uintptr_t],,[#include <inttypes.h>
 284 #include <stdio.h>])
 285     if test "$ac_cv_sizeof_uintptr_t" -ne 0; then
 286       SCM_I_GSC_NEEDS_INTTYPES_H=1
 287     fi
 288   fi
 289 fi
 290
 291 ### See what's provided by stdint.h
 292 if test "$ac_cv_header_stdint_h" = yes; then
 293    AC_CHECK_TYPE([int8_t],[scm_stdint_has_int8=1],,[#include <stdint.h>])
 294    AC_CHECK_TYPE([uint8_t],[scm_stdint_has_uint8=1],,[#include <stdint.h>])
 295    AC_CHECK_TYPE([int16_t],[scm_stdint_has_int16=1],,[#include <stdint.h>])
 296    AC_CHECK_TYPE([uint16_t],[scm_stdint_has_uint16=1],,[#include <stdint.h>])
 297    AC_CHECK_TYPE([int32_t],[scm_stdint_has_int32=1],,[#include <stdint.h>])
 298    AC_CHECK_TYPE([uint32_t],[scm_stdint_has_uint32=1],,[#include <stdint.h>])
 299    AC_CHECK_TYPE([int64_t],[scm_stdint_has_int64=1],,[#include <stdint.h>])
 300    AC_CHECK_TYPE([uint64_t],[scm_stdint_has_uint64=1],,[#include <stdint.h>])
 301    AC_CHECK_TYPE([intmax_t],[scm_stdint_has_intmax=1],,[#include <stdint.h>])
 302    AC_CHECK_TYPE([uintmax_t],[scm_stdint_has_uintmax=1],,[#include <stdint.h>])
 303 fi
 304
 305 # so we don't get confused by the cache (wish there was a better way
 306 # to check particular headers for the same type...)
 307
 308 unset ac_cv_type_int8_t
 309 unset ac_cv_type_uint8_t
 310 unset ac_cv_type_int16_t
 311 unset ac_cv_type_uint16_t
 312 unset ac_cv_type_int32_t
 313 unset ac_cv_type_uint32_t
 314 unset ac_cv_type_int64_t
 315 unset ac_cv_type_uint64_t
 316 unset ac_cv_type_intmax_t
 317 unset ac_cv_type_uintmax_t
 318
 319 ### See what's provided by inttypes.h
 320 if test "$ac_cv_header_inttypes_h" = yes; then
 321   AC_CHECK_TYPE([int8_t],[scm_inttypes_has_int8=1],,[#include <inttypes.h>])
 322   AC_CHECK_TYPE([uint8_t],[scm_inttypes_has_uint8=1],,[#include <inttypes.h>])
 323   AC_CHECK_TYPE([int16_t],[scm_inttypes_has_int16=1],,[#include <inttypes.h>])
 324   AC_CHECK_TYPE([uint16_t],[scm_inttypes_has_uint16=1],,[#include <inttypes.h>])
 325   AC_CHECK_TYPE([int32_t],[scm_inttypes_has_int32=1],,[#include <inttypes.h>])
 326   AC_CHECK_TYPE([uint32_t],[scm_inttypes_has_uint32=1],,[#include <inttypes.h>])
 327   AC_CHECK_TYPE([int64_t],[scm_inttypes_has_int64=1],,[#include <inttypes.h>])
 328   AC_CHECK_TYPE([uint64_t],[scm_inttypes_has_uint64=1],,[#include <inttypes.h>])
 329   AC_CHECK_TYPE([intmax_t],[scm_inttypes_has_intmax=1],,[#include <inttypes.h>])
 330   AC_CHECK_TYPE([uintmax_t],[scm_inttypes_has_uintmax=1],,[#include <inttypes.h>])
 331 fi
 332
 333 # Try hard to find definitions for some required scm_t_*int* types.
 334
 335 ### Required type scm_t_int8
 336 if test "$scm_stdint_has_int8"; then
 337   SCM_I_GSC_T_INT8='"int8_t"'
 338   SCM_I_GSC_NEEDS_STDINT_H=1
 339 elif test "$scm_inttypes_has_int8"; then
 340   SCM_I_GSC_T_INT8='"int8_t"'
 341   SCM_I_GSC_NEEDS_INTTYPES_H=1
 342 elif test "$ac_cv_sizeof_char" -eq 1; then
 343   SCM_I_GSC_T_INT8='"signed char"'
 344 else
 345   AC_MSG_ERROR([Can't find appropriate type for scm_t_int8.])
 346 fi
 347 AC_SUBST([SCM_I_GSC_T_INT8])
 348
 349 ### Required type scm_t_uint8
 350 if test "$scm_stdint_has_uint8"; then
 351   SCM_I_GSC_T_UINT8='"uint8_t"'
 352   SCM_I_GSC_NEEDS_STDINT_H=1
 353 elif test "$scm_inttypes_has_uint8"; then
 354   SCM_I_GSC_T_UINT8='"uint8_t"'
 355   SCM_I_GSC_NEEDS_INTTYPES_H=1
 356 elif test "$ac_cv_sizeof_unsigned_char" -eq 1; then
 357   SCM_I_GSC_T_UINT8='"unsigned char"'
 358 else
 359   AC_MSG_ERROR([Can't find appropriate type for scm_t_uint8.])
 360 fi
 361 AC_SUBST([SCM_I_GSC_T_UINT8])
 362
 363 ### Required type scm_t_int16 (ANSI C says int or short might work)
 364 if test "$scm_stdint_has_int16"; then
 365   SCM_I_GSC_T_INT16='"int16_t"'
 366   SCM_I_GSC_NEEDS_STDINT_H=1
 367 elif test "$scm_inttypes_has_int16"; then
 368   SCM_I_GSC_T_INT16='"int16_t"'
 369   SCM_I_GSC_NEEDS_INTTYPES_H=1
 370 elif test "$ac_cv_sizeof_int" -eq 2; then
 371   SCM_I_GSC_T_INT16='"int"'
 372 elif test "$ac_cv_sizeof_short" -eq 2; then
 373   SCM_I_GSC_T_INT16='"short"'
 374 else
 375   AC_MSG_ERROR([Can't find appropriate type for scm_t_int16.])
 376 fi
 377 AC_SUBST([SCM_I_GSC_T_INT16])
 378
 379 ### Required type scm_t_uint16 (ANSI C says int or short might work)
 380 if test "$scm_stdint_has_uint16"; then
 381   SCM_I_GSC_T_UINT16='"uint16_t"'
 382   SCM_I_GSC_NEEDS_STDINT_H=1
 383 elif test "$scm_inttypes_has_uint16"; then
 384   SCM_I_GSC_T_UINT16='"uint16_t"'
 385   SCM_I_GSC_NEEDS_INTTYPES_H=1
 386 elif test "$ac_cv_sizeof_unsigned_int" -eq 2; then
 387   SCM_I_GSC_T_UINT16='"unsigned int"'
 388 elif test "$ac_cv_sizeof_unsigned_short" -eq 2; then
 389   SCM_I_GSC_T_UINT16='"unsigned short"'
 390 else
 391   AC_MSG_ERROR([Can't find appropriate type for scm_t_uint16.])
 392 fi
 393 AC_SUBST([SCM_I_GSC_T_UINT16])
 394
 395
 396 ### Required type scm_t_int32 (ANSI C says int, short, or long might work)
 397 if test "$scm_stdint_has_int32"; then
 398   SCM_I_GSC_T_INT32='"int32_t"'
 399   SCM_I_GSC_NEEDS_STDINT_H=1
 400 elif test "$scm_inttypes_has_int32"; then
 401   SCM_I_GSC_T_INT32='"int32_t"'
 402   SCM_I_GSC_NEEDS_INTTYPES_H=1
 403 elif test "$ac_cv_sizeof_int" -eq 4; then
 404   SCM_I_GSC_T_INT32='"int"'
 405 elif test "$ac_cv_sizeof_long" -eq 4; then
 406   SCM_I_GSC_T_INT32='"long"'
 407 elif test "$ac_cv_sizeof_short" -eq 4; then
 408   SCM_I_GSC_T_INT32='"short"'
 409 else
 410   AC_MSG_ERROR([Can't find appropriate type for scm_t_int32.])
 411 fi
 412 AC_SUBST([SCM_I_GSC_T_INT32])
 413
 414 ### Required type scm_t_uint32 (ANSI C says int, short, or long might work)
 415 if test "$scm_stdint_has_uint32"; then
 416   SCM_I_GSC_T_UINT32='"uint32_t"'
 417   SCM_I_GSC_NEEDS_STDINT_H=1
 418 elif test "$scm_inttypes_has_uint32"; then
 419   SCM_I_GSC_T_UINT32='"uint32_t"'
 420   SCM_I_GSC_NEEDS_INTTYPES_H=1
 421 elif test "$ac_cv_sizeof_unsigned_int" -eq 4; then
 422   SCM_I_GSC_T_UINT32='"unsigned int"'
 423 elif test "$ac_cv_sizeof_unsigned_long" -eq 4; then
 424   SCM_I_GSC_T_UINT32='"unsigned long"'
 425 elif test "$ac_cv_sizeof_unsigned_short" -eq 4; then
 426   SCM_I_GSC_T_UINT32='"unsigned short"'
 427 else
 428   AC_MSG_ERROR([Can't find appropriate type for scm_t_uint32.])
 429 fi
 430 AC_SUBST([SCM_I_GSC_T_UINT32])
 431
 432 ### Optional type scm_t_int64 (ANSI C says int, short, or long might work)
 433 ### Also try 'long long' and '__int64' if we have it.
 434 SCM_I_GSC_T_INT64=0
 435 if test "$scm_stdint_has_int64"; then
 436   SCM_I_GSC_T_INT64='"int64_t"'
 437   SCM_I_GSC_NEEDS_STDINT_H=1
 438 elif test "$scm_inttypes_has_int64"; then
 439   SCM_I_GSC_T_INT64='"int64_t"'
 440   SCM_I_GSC_NEEDS_INTTYPES_H=1
 441 elif test "$ac_cv_sizeof_int" -eq 8; then
 442   SCM_I_GSC_T_INT64='"int"'
 443 elif test "$ac_cv_sizeof_long" -eq 8; then
 444   SCM_I_GSC_T_INT64='"long"'
 445 elif test "$ac_cv_sizeof_short" -eq 8; then
 446   SCM_I_GSC_T_INT64='"short"'
 447 elif test "$ac_cv_sizeof_long_long" -eq 8; then
 448   SCM_I_GSC_T_INT64='"long long"'
 449 elif test "$ac_cv_sizeof___int64" -eq 8; then
 450   SCM_I_GSC_T_INT64='"__int64"'
 451 else
 452   AC_MSG_ERROR([Can't find appropriate type for scm_t_int64.])
 453 fi
 454 AC_SUBST([SCM_I_GSC_T_INT64])
 455
 456
 457 ### Optional type scm_t_uint64 (ANSI C says int, short, or long might work)
 458 ### Also try 'long long' and '__int64' if we have it.
 459 SCM_I_GSC_T_UINT64=0
 460 if test "$scm_stdint_has_uint64"; then
 461   SCM_I_GSC_T_UINT64='"uint64_t"'
 462   SCM_I_GSC_NEEDS_STDINT_H=1
 463 elif test "$scm_inttypes_has_uint64"; then
 464   SCM_I_GSC_T_UINT64='"uint64_t"'
 465   SCM_I_GSC_NEEDS_INTTYPES_H=1
 466 elif test "$ac_cv_sizeof_unsigned_int" -eq 8; then
 467   SCM_I_GSC_T_UINT64='"unsigned int"'
 468 elif test "$ac_cv_sizeof_unsigned_long" -eq 8; then
 469   SCM_I_GSC_T_UINT64='"unsigned long"'
 470 elif test "$ac_cv_sizeof_unsigned_short" -eq 8; then
 471   SCM_I_GSC_T_UINT64='"unsigned short"'
 472 elif test "$ac_cv_sizeof_unsigned_long_long" -eq 8; then
 473   SCM_I_GSC_T_UINT64='"unsigned long long"'
 474 elif test "$ac_cv_sizeof_unsigned___int64" -eq 8; then
 475   SCM_I_GSC_T_UINT64='"unsigned __int64"'
 476 else
 477   AC_MSG_ERROR([Can't find appropriate type for scm_t_uint64.])
 478 fi
 479 AC_SUBST([SCM_I_GSC_T_UINT64])
 480
 481 ### Required type scm_t_intmax
 482 ###
 483 ### We try 'intmax_t', '__int64', 'long long' in this order.  When
 484 ### none of them is available, we use 'long'.
 485 ###
 486 SCM_I_GSC_T_INTMAX=0
 487 if test "$scm_stdint_has_intmax"; then
 488   SCM_I_GSC_T_INTMAX='"intmax_t"'
 489   SCM_I_GSC_NEEDS_STDINT_H=1
 490 elif test "$scm_inttypes_has_intmax"; then
 491   SCM_I_GSC_T_INTMAX='"intmax_t"'
 492   SCM_I_GSC_NEEDS_INTTYPES_H=1
 493 elif test "$ac_cv_sizeof___int64" -ne 0; then
 494   SCM_I_GSC_T_INTMAX='"__int64"'
 495 elif test "$ac_cv_sizeof_long_long" -ne 0; then
 496   SCM_I_GSC_T_INTMAX='"long long"'
 497 else
 498   SCM_I_GSC_T_INTMAX='"long"'
 499 fi
 500 AC_SUBST([SCM_I_GSC_T_INTMAX])
 501
 502 ### Required type scm_t_uintmax
 503 ###
 504 ### We try 'uintmax_t', 'unsigned __int64', 'unsigned long long' in
 505 ### this order.  When none of them is available, we use 'unsigned long'.
 506 ###
 507 SCM_I_GSC_T_UINTMAX=0
 508 if test "$scm_stdint_has_uintmax"; then
 509   SCM_I_GSC_T_UINTMAX='"uintmax_t"'
 510   SCM_I_GSC_NEEDS_STDINT_H=1
 511 elif test "$scm_inttypes_has_uintmax"; then
 512   SCM_I_GSC_T_UINTMAX='"uintmax_t"'
 513   SCM_I_GSC_NEEDS_INTTYPES_H=1
 514 elif test "$ac_cv_sizeof_unsigned___int64" -ne 0; then
 515   SCM_I_GSC_T_UINTMAX='"unsigned __int64"'
 516 elif test "$ac_cv_sizeof_unsigned_long_long" -ne 0; then
 517   SCM_I_GSC_T_UINTMAX='"unsigned long long"'
 518 else
 519   SCM_I_GSC_T_UINTMAX='"unsigned long"'
 520 fi
 521 AC_SUBST([SCM_I_GSC_T_UINTMAX])
 522
 523
 524 AC_SUBST([SCM_I_GSC_NEEDS_STDINT_H])
 525 AC_SUBST([SCM_I_GSC_NEEDS_INTTYPES_H])
 526
 527 AC_HEADER_STDC
 528 AC_HEADER_DIRENT
 529 AC_HEADER_TIME
 530 AC_HEADER_SYS_WAIT
 531
 532 # Reasons for testing:
 533 #   fenv.h - available in C99, but not older systems
 534 #
 535 AC_CHECK_HEADERS([fenv.h io.h libc.h limits.h malloc.h memory.h string.h \
 536 regex.h rxposix.h rx/rxposix.h sys/dir.h sys/ioctl.h sys/select.h \
 537 sys/time.h sys/timeb.h sys/times.h sys/stdtypes.h sys/types.h \
 538 sys/utime.h time.h unistd.h utime.h pwd.h grp.h sys/utsname.h \
 539 direct.h])
 540
 541 GUILE_HEADER_LIBC_WITH_UNISTD
 542
 543 AC_TYPE_GETGROUPS
 544 AC_TYPE_SIGNAL
 545 AC_TYPE_MODE_T
 546
 547 if test $MINGW32 = no; then
 548         AC_CHECK_LIB(m, main)
 549 fi
 550 AC_CHECK_FUNCS(gethostbyname)
 551 if test $ac_cv_func_gethostbyname = no; then
 552     AC_CHECK_LIB(nsl, gethostbyname)
 553 fi
 554
 555 AC_CHECK_FUNCS(connect)
 556 if test $ac_cv_func_connect = no; then
 557     AC_CHECK_LIB(socket, connect)
 558 fi
 559
 560 dnl
 561 dnl Check for Winsock and other functionality on Win32 (*not* CygWin)
 562 dnl
 563 EXTRA_DEFS=""
 564 if test "$MINGW32" = "yes" ; then
 565     AC_CHECK_HEADER(winsock2.h, [AC_DEFINE([HAVE_WINSOCK2_H], 1,
 566       [Define if you have the <winsock2.h> header file.])])
 567     AC_CHECK_LIB(ws2_32, main)
 568     AC_LIBOBJ([win32-uname])
 569     AC_LIBOBJ([win32-dirent])
 570     if test "$enable_networking" = yes ; then
 571       AC_LIBOBJ([win32-socket])
 572     fi
 573     if test "$enable_shared" = yes ; then
 574       EXTRA_DEFS="-DSCM_IMPORT"
 575       AC_DEFINE(USE_DLL_IMPORT, 1,
 576         [Define if you need additional CPP macros on Win32 platforms.])
 577     fi
 578     if test x"$enable_ltdl_install" = x"yes" ; then
 579       INCLTDL="-DLIBLTDL_DLL_IMPORT $INCLTDL"
 580     fi
 581 fi
 582 AC_SUBST(EXTRA_DEFS)
 583
 584 # FIXME: check to see if we still need these.
 585 #AC_SUBST(INCLTDL)
 586 #AC_SUBST(LIBLTDL)
 587
 588 AC_SUBST(DLPREOPEN)
 589
 590 # Reasons for testing:
 591 #   crt_externs.h - Darwin specific
 592 #
 593 AC_CHECK_HEADERS([assert.h crt_externs.h])
 594
 595 # Reasons for testing:
 596 #   DINFINITY - OSF specific
 597 #   DQNAN - OSF specific
 598 #       (DINFINITY and DQNAN are actually global variables, not functions)
 599 #   fesetround - available in C99, but not older systems
 600 #   gmtime_r - recent posix, not on old systems
 601 #   readdir_r - recent posix, not on old systems
 602 #   sysconf - not on old systems
 603 #   _NSGetEnviron - Darwin specific
 604 #
 605 AC_CHECK_FUNCS([DINFINITY DQNAN ctermid fesetround ftime fchown getcwd geteuid gettimeofday gmtime_r lstat mkdir mknod nice readdir_r readlink rename rmdir select setegid seteuid setlocale setpgid setsid sigaction siginterrupt strftime strptime symlink sync sysconf tcgetpgrp tcsetpgrp times uname waitpid strdup system usleep atexit on_exit chown link fcntl ttyname getpwent getgrent kill getppid getpgrp fork setitimer getitimer strchr strcmp index bcopy memcpy rindex unsetenv _NSGetEnviron])
 606
 607 # Reasons for testing:
 608 #   netdb.h - not in mingw
 609 #   sys/param.h - not in mingw
 610 #
 611 AC_CHECK_HEADERS(crypt.h netdb.h sys/param.h sys/resource.h sys/file.h)
 612 AC_CHECK_FUNCS(chroot flock getlogin cuserid getpriority setpriority getpass sethostname gethostname)
 613
 614 # crypt() may or may not be available, for instance in some countries there
 615 # are restrictions on cryptography.
 616 #
 617 # crypt() might be in libc (eg. OpenBSD), or it might be in a separate
 618 # -lcrypt library (eg. Debian GNU/Linux).
 619 #
 620 # On HP-UX 11, crypt() is in libc and there's a dummy libcrypt.a.  We must
 621 # be careful to avoid -lcrypt in this case, since libtool will see there's
 622 # only a static libcrypt and decide to build only a static libguile.
 623 #
 624 # AC_SEARCH_LIBS lets us add -lcrypt to LIBS only if crypt() is not in the
 625 # libraries already in that list.
 626 #
 627 AC_SEARCH_LIBS(crypt, crypt,
 628   [AC_DEFINE(HAVE_CRYPT,1,
 629              [Define to 1 if you have the `crypt' function.])])
 630
 631 dnl GMP tests
 632 AC_CHECK_LIB([gmp], [__gmpz_init], ,
 633   [AC_MSG_ERROR([GNU MP not found, see http://swox.com/gmp])])
 634
 635 # mpz_import is a macro so we need to include <gmp.h>
 636 AC_TRY_LINK([#include <gmp.h>],
 637             [mpz_import (0, 0, 0, 0, 0, 0, 0);] , ,
 638   [AC_MSG_ERROR([At least GNU MP 4.1 is required, see http://swox.com/gmp])])
 639
 640 ### Some systems don't declare some functions.  On such systems, we
 641 ### need to at least provide our own K&R-style declarations.
 642
 643 ### GUILE_FUNC_DECLARED(function, headerfile)
 644
 645 ### Check for a declaration of FUNCTION in HEADERFILE; if it is
 646 ### not there, #define MISSING_FUNCTION_DECL.
 647 AC_DEFUN([GUILE_FUNC_DECLARED], [
 648   AC_CACHE_CHECK(for $1 declaration, guile_cv_func_$1_declared,
 649     AC_EGREP_HEADER($1, $2,
 650                     guile_cv_func_$1_declared=yes,
 651                     guile_cv_func_$1_declared=no))
 652   if test [x$guile_cv_func_]$1[_declared] = xno; then
 653     AC_DEFINE([MISSING_]translit($1, [a-z], [A-Z])[_DECL], 1,
 654       [Define if the operating system supplies $1 without declaring it.])
 655   fi
 656 ])
 657
 658 GUILE_FUNC_DECLARED(sleep, unistd.h)
 659 GUILE_FUNC_DECLARED(usleep, unistd.h)
 660
 661 AC_CHECK_DECLS([strptime],,,
 662 [#define _GNU_SOURCE /* ask glibc to give strptime prototype */
 663 #include <time.h>])
 664
 665 ### On some systems usleep has no return value.  If it does have one,
 666 ### we'd like to return it; otherwise, we'll fake it.
 667 AC_CACHE_CHECK([return type of usleep], guile_cv_func_usleep_return_type,
 668   [AC_EGREP_HEADER(changequote(<, >)<void[      ]+usleep>changequote([, ]),
 669                    unistd.h,
 670                    [guile_cv_func_usleep_return_type=void],
 671                    [guile_cv_func_usleep_return_type=int])])
 672 case "$guile_cv_func_usleep_return_type" in
 673   "void" )
 674     AC_DEFINE(USLEEP_RETURNS_VOID, 1,
 675       [Define if the system headers declare usleep to return void.])
 676   ;;
 677 esac
 678
 679 AC_CHECK_HEADER(sys/un.h, have_sys_un_h=1)
 680 if test -n "$have_sys_un_h" ; then
 681   AC_DEFINE(HAVE_UNIX_DOMAIN_SOCKETS, 1,
 682     [Define if the system supports Unix-domain (file-domain) sockets.])
 683 fi
 684
 685 AC_CHECK_FUNCS(socketpair getgroups setgroups setpwent pause tzset)
 686
 687 AC_CHECK_FUNCS(sethostent   gethostent   endhostent   dnl
 688                setnetent    getnetent    endnetent    dnl
 689                setprotoent  getprotoent  endprotoent  dnl
 690                setservent   getservent   endservent   dnl
 691                getnetbyaddr getnetbyname dnl
 692                inet_lnaof inet_makeaddr inet_netof hstrerror dnl
 693                inet_pton inet_ntop)
 694
 695 AC_MSG_CHECKING(for __libc_stack_end)
 696 AC_CACHE_VAL(guile_cv_have_libc_stack_end,
 697 [AC_TRY_LINK([#include <stdio.h>
 698 extern char *__libc_stack_end;],
 699              [printf("%p", (char*) __libc_stack_end);],
 700              guile_cv_have_libc_stack_end=yes,
 701              guile_cv_have_libc_stack_end=no)])
 702 AC_MSG_RESULT($guile_cv_have_libc_stack_end)
 703
 704 if test $guile_cv_have_libc_stack_end = yes; then
 705   AC_DEFINE(HAVE_LIBC_STACK_END, 1,
 706            [Define if you have the __libc_stack_end variable.])
 707 fi
 708
 709 dnl Some systems do not declare this.  Some systems do declare it, as a
 710 dnl macro.  With cygwin it may be in a DLL.
 711
 712 AC_MSG_CHECKING(whether netdb.h declares h_errno)
 713 AC_CACHE_VAL(guile_cv_have_h_errno,
 714 [AC_TRY_COMPILE([#include <netdb.h>],
 715 [int a = h_errno;],
 716 guile_cv_have_h_errno=yes, guile_cv_have_h_errno=no)])
 717 AC_MSG_RESULT($guile_cv_have_h_errno)
 718 if test $guile_cv_have_h_errno = yes; then
 719   AC_DEFINE(HAVE_H_ERRNO, 1, [Define if h_errno is declared in netdb.h.])
 720 fi
 721
 722 AC_MSG_CHECKING(whether uint32_t is defined)
 723 AC_CACHE_VAL(guile_cv_have_uint32_t,
 724   [AC_TRY_COMPILE([#include <sys/types.h>
 725                    #if HAVE_STDINT_H
 726                    #include <stdint.h>
 727                    #endif
 728                    #ifndef __MINGW32__
 729                    #include <netdb.h>
 730                    #endif],
 731                   [uint32_t a;],
 732                   guile_cv_have_uint32_t=yes, guile_cv_have_uint32_t=no)])
 733 AC_MSG_RESULT($guile_cv_have_uint32_t)
 734 if test $guile_cv_have_uint32_t = yes; then
 735   AC_DEFINE(HAVE_UINT32_T, 1,
 736     [Define if uint32_t typedef is defined when netdb.h is include.])
 737 fi
 738
 739 AC_MSG_CHECKING(for working IPv6 support)
 740 AC_CACHE_VAL(guile_cv_have_ipv6,
 741 [AC_TRY_COMPILE([
 742 #ifdef HAVE_SYS_TYPES_H
 743 #include <sys/types.h>
 744 #endif
 745 #include <netinet/in.h>
 746 #include <sys/socket.h>],
 747 [struct sockaddr_in6 a;  a.sin6_family = AF_INET6;],
 748 guile_cv_have_ipv6=yes, guile_cv_have_ipv6=no)])
 749 AC_MSG_RESULT($guile_cv_have_ipv6)
 750 if test $guile_cv_have_ipv6 = yes; then
 751   AC_DEFINE(HAVE_IPV6, 1, [Define if you want support for IPv6.])
 752 fi
 753
 754 # included in rfc2553 but not in older implementations, e.g., glibc 2.1.3.
 755 AC_MSG_CHECKING(whether sockaddr_in6 has sin6_scope_id)
 756 AC_CACHE_VAL(guile_cv_have_sin6_scope_id,
 757 [AC_TRY_COMPILE([
 758 #ifdef HAVE_SYS_TYPES_H
 759 #include <sys/types.h>
 760 #endif
 761 #include <netinet/in.h>],
 762 [struct sockaddr_in6 sok;  sok.sin6_scope_id = 0;],
 763 guile_cv_have_sin6_scope_id=yes, guile_cv_have_sin6_scope_id=no)])
 764 AC_MSG_RESULT($guile_cv_have_sin6_scope_id)
 765 if test $guile_cv_have_sin6_scope_id = yes; then
 766   AC_DEFINE(HAVE_SIN6_SCOPE_ID, 1,
 767     [Define this if your IPv6 has sin6_scope_id in sockaddr_in6 struct.])
 768 fi
 769
 770 AC_MSG_CHECKING(whether localtime caches TZ)
 771 AC_CACHE_VAL(guile_cv_localtime_cache,
 772 [if test x$ac_cv_func_tzset = xyes; then
 773 AC_TRY_RUN([#include <time.h>
 774 #if STDC_HEADERS
 775 # include <stdlib.h>
 776 #endif
 777 extern char **environ;
 778 unset_TZ ()
 779 {
 780   char **from, **to;
 781   for (to = from = environ; (*to = *from); from++)
 782     if (! (to[0][0] == 'T' && to[0][1] == 'Z' && to[0][2] == '='))
 783       to++;
 784 }
 785 char TZ_GMT0[] = "TZ=GMT0";
 786 char TZ_PST8[] = "TZ=PST8";
 787 main()
 788 {
 789   time_t now = time ((time_t *) 0);
 790   int hour_GMT0, hour_unset;
 791   if (putenv (TZ_GMT0) != 0)
 792     exit (1);
 793   hour_GMT0 = localtime (&now)->tm_hour;
 794   unset_TZ ();
 795   hour_unset = localtime (&now)->tm_hour;
 796   if (putenv (TZ_PST8) != 0)
 797     exit (1);
 798   if (localtime (&now)->tm_hour == hour_GMT0)
 799     exit (1);
 800   unset_TZ ();
 801   if (localtime (&now)->tm_hour != hour_unset)
 802     exit (1);
 803   exit (0);
 804 }], guile_cv_localtime_cache=no, guile_cv_localtime_cache=yes,
 805 [# If we have tzset, assume the worst when cross-compiling.
 806 guile_cv_localtime_cache=yes])
 807 else
 808         # If we lack tzset, report that localtime does not cache TZ,
 809         # since we can't invalidate the cache if we don't have tzset.
 810         guile_cv_localtime_cache=no
 811 fi])dnl
 812 AC_MSG_RESULT($guile_cv_localtime_cache)
 813 if test $guile_cv_localtime_cache = yes; then
 814   AC_DEFINE(LOCALTIME_CACHE, 1, [Define if localtime caches the TZ setting.])
 815 fi
 816
 817 dnl Test whether system calls are restartable by default on the
 818 dnl current system.  If they are not, we put a loop around every system
 819 dnl call to check for EINTR (see SCM_SYSCALL) and do not attempt to
 820 dnl change from the default behaviour.  On the other hand, if signals
 821 dnl are restartable then the loop is not installed and when libguile
 822 dnl initialises it also resets the behaviour of each signal to cause a
 823 dnl restart (in case a different runtime had a different default
 824 dnl behaviour for some reason: e.g., different versions of linux seem
 825 dnl to behave differently.)
 826
 827 AC_SYS_RESTARTABLE_SYSCALLS
 828
 829 if test "$enable_regex" = yes; then
 830    if test "$ac_cv_header_regex_h" = yes ||
 831       test "$ac_cv_header_rxposix_h" = yes ||
 832       test "$ac_cv_header_rx_rxposix_h" = yes; then
 833      GUILE_NAMED_CHECK_FUNC(regcomp, norx, [AC_LIBOBJ([regex-posix])],
 834      [AC_CHECK_LIB(rx, main)
 835       GUILE_NAMED_CHECK_FUNC(regcomp, rx, [AC_LIBOBJ([regex-posix])],
 836      [AC_CHECK_LIB(regex, main)
 837       GUILE_NAMED_CHECK_FUNC(regcomp, regex, [AC_LIBOBJ([regex-posix])])])]
 838      )
 839      dnl The following should not be necessary, but for some reason
 840      dnl autoheader misses it if we don't include it!
 841      if test "$ac_cv_func_regcomp_norx" = yes ||
 842         test "$ac_cv_func_regcomp_regex" = yes ||
 843         test "$ac_cv_func_regcomp_rx" = yes; then
 844        AC_DEFINE(HAVE_REGCOMP, 1,
 845          [This is included as part of a workaround for a autoheader bug.])
 846      fi
 847    fi
 848 fi
 849
 850 AC_REPLACE_FUNCS(inet_aton putenv strerror memmove mkstemp)
 851
 852 AC_CHECK_HEADERS(floatingpoint.h ieeefp.h nan.h)
 853
 854 # Reasons for testing:
 855 #   asinh, acosh, atanh, trunc - C99 standard, generally not available on
 856 #                                older systems
 857 #   sincos - GLIBC extension
 858 #
 859 AC_CHECK_FUNCS(asinh acosh atanh copysign finite sincos trunc)
 860
 861 # C99 specifies isinf and isnan as macros.
 862 # HP-UX provides only macros, no functions.
 863 # glibc 2.3.2 provides both macros and functions.
 864 # IRIX 6.5 and Solaris 8 only provide functions.
 865 #
 866 # The following tests detect isinf and isnan either as functions or as
 867 # macros from <math.h>.  Plain AC_CHECK_FUNCS is insufficient, it doesn't
 868 # use <math.h> so doesn't detect on macro-only systems like HP-UX.
 869 #
 870 AC_MSG_CHECKING([for isinf])
 871 AC_LINK_IFELSE(
 872 [#include <math.h>
 873 int main () { return (isinf(0.0) != 0); }],
 874   [AC_MSG_RESULT([yes])
 875    AC_DEFINE(HAVE_ISINF, 1,
 876              [Define to 1 if you have the `isinf' macro or function.])],
 877   [AC_MSG_RESULT([no])])
 878 AC_MSG_CHECKING([for isnan])
 879 AC_LINK_IFELSE(
 880 [#include <math.h>
 881 int main () { return (isnan(0.0) != 0); }],
 882   [AC_MSG_RESULT([yes])
 883    AC_DEFINE(HAVE_ISNAN, 1,
 884              [Define to 1 if you have the `isnan' macro or function.])],
 885   [AC_MSG_RESULT([no])])
 886
 887 # When testing for the presence of alloca, we need to add alloca.o
 888 # explicitly to LIBOBJS to make sure that it is translated to
 889 # `alloca.lo' for libtool later on.  This can and should be done more cleanly.
 890 AC_FUNC_ALLOCA
 891 if test "$ALLOCA" = "alloca.o"
 892 then
 893   AC_LIBOBJ([alloca])
 894 fi
 895
 896 AC_CHECK_MEMBERS([struct stat.st_rdev])
 897 AC_CHECK_MEMBERS([struct stat.st_blksize])
 898
 899 AC_STRUCT_ST_BLOCKS
 900
 901 AC_CACHE_CHECK([for S_ISLNK in sys/stat.h], ac_cv_macro_S_ISLNK,
 902   [AC_TRY_CPP([#include <sys/stat.h>
 903                #ifndef S_ISLNK
 904                #error no S_ISLNK
 905                #endif],
 906                ac_cv_macro_S_ISLNK=yes,
 907                ac_cv_macro_S_ISLNK=no)])
 908 if test $ac_cv_macro_S_ISLNK = yes; then
 909   AC_DEFINE(HAVE_S_ISLNK, 1,
 910     [Define this if your system defines S_ISLNK in sys/stat.h.])
 911 fi
 912
 913 AC_STRUCT_TIMEZONE
 914 GUILE_STRUCT_UTIMBUF
 915
 916 #--------------------------------------------------------------------
 917 #
 918 # Which way does the stack grow?
 919 #
 920 #--------------------------------------------------------------------
 921
 922 SCM_I_GSC_STACK_GROWS_UP=0
 923 AC_TRY_RUN(aux (l) unsigned long l;
 924              { int x; exit (l >= ((unsigned long)&x)); }
 925            main () { int q; aux((unsigned long)&q); },
 926            [SCM_I_GSC_STACK_GROWS_UP=1],
 927            [],
 928            [AC_MSG_WARN(Guessing that stack grows down -- see scmconfig.h)])
 929
 930 AC_CHECK_SIZEOF(float)
 931 if test "$ac_cv_sizeof_float" -le "$ac_cv_sizeof_long"; then
 932     AC_DEFINE(SCM_SINGLES, 1,
 933               [Define this if floats are the same size as longs.])
 934 fi
 935
 936 AC_MSG_CHECKING(for struct linger)
 937 AC_CACHE_VAL(scm_cv_struct_linger,
 938         AC_TRY_COMPILE([
 939 #include <sys/types.h>
 940 #include <sys/socket.h>],
 941                         [struct linger lgr;  lgr.l_linger = 100],
 942                         scm_cv_struct_linger="yes",
 943                         scm_cv_struct_linger="no"))
 944 AC_MSG_RESULT($scm_cv_struct_linger)
 945 if test $scm_cv_struct_linger = yes; then
 946         AC_DEFINE(HAVE_STRUCT_LINGER, 1,
 947           [Define this if your system defines struct linger, for use with the
 948            getsockopt and setsockopt system calls.])
 949 fi
 950
 951
 952 AC_MSG_CHECKING(for struct timespec)
 953 AC_CACHE_VAL(scm_cv_struct_timespec,
 954         AC_TRY_COMPILE([
 955 #include <time.h>],
 956                         [struct timespec t;  t.tv_nsec = 100],
 957                         scm_cv_struct_timespec="yes",
 958                         scm_cv_struct_timespec="no"))
 959 AC_MSG_RESULT($scm_cv_struct_timespec)
 960 if test $scm_cv_struct_timespec = yes; then
 961   AC_DEFINE(HAVE_STRUCT_TIMESPEC, 1,
 962     [Define this if your system defines struct timespec via <time.h>.])
 963 fi
 964
 965 #--------------------------------------------------------------------
 966 #
 967 # Flags for thread support
 968 #
 969 #--------------------------------------------------------------------
 970
 971 SCM_I_GSC_USE_PTHREAD_THREADS=0
 972 SCM_I_GSC_USE_NULL_THREADS=0
 973 SCM_I_GSC_USE_COOP_THREADS=0
 974 AC_SUBST([SCM_I_GSC_USE_PTHREAD_THREADS])
 975 AC_SUBST([SCM_I_GSC_USE_NULL_THREADS])
 976 AC_SUBST([SCM_I_GSC_USE_COOP_THREADS])
 977
 978 ### What thread package has the user asked for?
 979 AC_ARG_WITH(threads, [  --with-threads          thread interface],
 980             , with_threads=yes)
 981
 982 case "$with_threads" in
 983   "yes" | "pthread" | "pthreads" | "pthread-threads" | "")
 984     AC_CHECK_LIB(pthread, main,
 985       LIBS="-lpthread $LIBS"
 986       SCM_I_GSC_USE_PTHREAD_THREADS=1
 987       with_threads="pthreads",
 988       with_threads="null")
 989
 990     if test $GCC = yes; then
 991     AC_DEFINE(_THREAD_SAFE, 1,
 992       [Use thread safe versions of GNU Libc functions.])
 993     fi
 994
 995     AC_MSG_CHECKING(if pthread_mutexattr_settype is declared)
 996     AC_CACHE_VAL(guile_cv_mutexattr_settype_declared,
 997       [AC_TRY_COMPILE([#include <pthread.h>],
 998           [int pthread_mutexattr_settype (int, int);],
 999           guile_cv_mutexattr_settype_declared=no,
1000           guile_cv_mutexattr_settype_declared=yes)])
1001     AC_MSG_RESULT($guile_cv_mutexattr_settype_declared)
1002     if test $guile_cv_mutexattr_settype_declared = yes; then
1003       AC_DEFINE(SCM_MUTEXATTR_SETTYPE_DECLARED, 1,
1004           [Define if pthread.h declares pthread_mutexattr_settype.])
1005     fi
1006
1007     AC_MSG_CHECKING(how to get a fast mutex)
1008     AC_CACHE_VAL(guile_cv_have_mutex_fast,
1009       [AC_TRY_COMPILE([#include <pthread.h>],
1010           [int a = PTHREAD_MUTEX_ADAPTIVE_NP;],
1011           guile_cv_have_mutex_fast=PTHREAD_MUTEX_ADAPTIVE_NP,
1012           guile_cv_have_mutex_fast=none)])
1013     AC_MSG_RESULT($guile_cv_have_mutex_fast)
1014     if test ! $guile_cv_have_mutex_fast = none; then
1015       AC_DEFINE_UNQUOTED(SCM_MUTEX_FAST, $guile_cv_have_mutex_fast,
1016           [The mutex kind enum for fast mutexes.])
1017     fi
1018
1019     AC_MSG_CHECKING(how to get a recursive mutex)
1020     AC_CACHE_VAL(guile_cv_have_mutex_recursive,
1021       [AC_TRY_COMPILE([#include <pthread.h>],
1022         [int a = PTHREAD_MUTEX_RECURSIVE_NP;],
1023          guile_cv_have_mutex_recursive=PTHREAD_MUTEX_RECURSIVE_NP)
1024       if test -z "$guile_cv_have_mutex_recursive"; then
1025           AC_TRY_COMPILE([#include <pthread.h>],
1026             [int a = PTHREAD_MUTEX_RECURSIVE;],
1027             guile_cv_have_mutex_recursive=PTHREAD_MUTEX_RECURSIVE,
1028             guile_cv_have_mutex_recursive=none)
1029         fi])
1030     AC_MSG_RESULT($guile_cv_have_mutex_recursive)
1031     if test ! $guile_cv_have_mutex_recursive = none; then
1032       AC_DEFINE_UNQUOTED(SCM_MUTEX_RECURSIVE, $guile_cv_have_mutex_recursive,
1033          [The mutex kind enum for recursive mutexes.])
1034     fi
1035
1036     # On Solaris, sched_yield lives in -lrt.
1037     AC_SEARCH_LIBS(sched_yield, rt)
1038
1039   ;;
1040 esac
1041
1042 case "$with_threads" in
1043   "pthreads")
1044   ;;
1045   "no" | "null")
1046     SCM_I_GSC_USE_NULL_THREADS=1
1047     with_threads="null-threads"
1048   ;;
1049   * )
1050     AC_MSG_ERROR(invalid value for --with-threads: $with_threads)
1051   ;;
1052 esac
1053
1054 AC_MSG_CHECKING(what kind of threads to support)
1055 AC_MSG_RESULT($with_threads)
1056
1057 ## Cross building
1058 if test "$cross_compiling" = "yes"; then
1059   AC_MSG_CHECKING(cc for build)
1060   ## /usr/bin/cc still uses wrong assembler
1061   ## CC_FOR_BUILD="${CC_FOR_BUILD-/usr/bincc}"
1062   CC_FOR_BUILD="${CC_FOR_BUILD-PATH=/usr/bin:$PATH cc}"
1063 else
1064   CC_FOR_BUILD="${CC_FOR_BUILD-$CC}"
1065 fi
1066
1067 ## AC_MSG_CHECKING("if we are cross compiling")
1068 ## AC_MSG_RESULT($cross_compiling)
1069 if test "$cross_compiling" = "yes"; then
1070    AC_MSG_RESULT($CC_FOR_BUILD)
1071 fi
1072
1073 ## No need as yet to be more elaborate
1074 CCLD_FOR_BUILD="$CC_FOR_BUILD"
1075
1076 AC_SUBST(cross_compiling)
1077 AC_ARG_VAR(CC_FOR_BUILD,[build system C compiler])
1078 AC_SUBST(CCLD_FOR_BUILD)
1079
1080 ## libtool erroneously calls CC_FOR_BUILD HOST_CC;
1081 ## --HOST is the platform that PACKAGE is compiled for.
1082 HOST_CC="$CC_FOR_BUILD"
1083 AC_SUBST(HOST_CC)
1084
1085 if test "$cross_compiling" = "yes"; then
1086   AC_MSG_CHECKING(guile for build)
1087   GUILE_FOR_BUILD="${GUILE_FOR_BUILD-guile}"
1088 else
1089   GUILE_FOR_BUILD='$(preinstguile)'
1090 fi
1091
1092 ## AC_MSG_CHECKING("if we are cross compiling")
1093 ## AC_MSG_RESULT($cross_compiling)
1094 if test "$cross_compiling" = "yes"; then
1095    AC_MSG_RESULT($GUILE_FOR_BUILD)
1096 fi
1097 AC_ARG_VAR(GUILE_FOR_BUILD,[guile for build system])
1098 AC_SUBST(GUILE_FOR_BUILD)
1099
1100 ## If we're using GCC, ask for aggressive warnings.
1101 case "$GCC" in
1102   yes )
1103     ## We had -Wstrict-prototypes in here for a bit, but Guile does too
1104     ## much stuff with generic function pointers for that to really be
1105     ## less than exasperating.
1106     ## -Wpointer-arith was here too, but something changed in gcc/glibc
1107     ## and it became equally exasperating (gcc 2.95 and/or glibc 2.1.2).
1108     CFLAGS="$CFLAGS -Wall -Wmissing-prototypes"
1109     # Do this here so we don't screw up any of the tests above that might
1110     # not be "warning free"
1111     if test "${GUILE_ERROR_ON_WARNING}" = yes
1112     then
1113         CFLAGS="${CFLAGS} -Werror"
1114         enable_compile_warnings=no
1115     fi
1116     ;;
1117 esac
1118
1119 ## NOTE the code below sets LIBOBJS directly and so is now forbidden
1120 ## -- I'm disabling it for now in the hopes that the newer autoconf
1121 ## will DTRT -- if not, we need to fix up the sed command to match the
1122 ## others...
1123 ##
1124 ## Remove fileblocks.o from the object list.  This file gets added by
1125 ## the Autoconf macro AC_STRUCT_ST_BLOCKS.  But there is no need.
1126 #LIBOBJS="`echo ${LIBOBJS} | sed 's/fileblocks\.o//g'`"
1127
1128 ## If we're creating a shared library (using libtool!), then we'll
1129 ## need to generate a list of .lo files corresponding to the .o files
1130 ## given in LIBOBJS.  We'll call it LIBLOBJS.
1131 LIBLOBJS="`echo ${LIB@&t@OBJS} | sed 's,\.[[^.]]* ,.lo ,g;s,\.[[^.]]*$,.lo,'`"
1132
1133 ## We also need to create corresponding .doc and .x files
1134 EXTRA_DOT_DOC_FILES="`echo ${LIB@&t@OBJS} | sed 's,\.[[^.]]* ,.doc ,g;s,\.[[^.]]*$,.doc,'`"
1135 EXTRA_DOT_X_FILES="`echo ${LIB@&t@OBJS} | sed 's,\.[[^.]]* ,.x ,g;s,\.[[^.]]*$,.x,'`"
1136
1137 AC_SUBST(GUILE_MAJOR_VERSION)
1138 AC_SUBST(GUILE_MINOR_VERSION)
1139 AC_SUBST(GUILE_MICRO_VERSION)
1140 AC_SUBST(GUILE_EFFECTIVE_VERSION)
1141 AC_SUBST(GUILE_VERSION)
1142
1143 #######################################################################
1144 # library versioning
1145
1146 AC_SUBST(LIBQTHREADS_INTERFACE_CURRENT)
1147 AC_SUBST(LIBQTHREADS_INTERFACE_REVISION)
1148 AC_SUBST(LIBQTHREADS_INTERFACE_AGE)
1149 AC_SUBST(LIBQTHREADS_INTERFACE)
1150
1151 AC_SUBST(LIBGUILE_INTERFACE_CURRENT)
1152 AC_SUBST(LIBGUILE_INTERFACE_REVISION)
1153 AC_SUBST(LIBGUILE_INTERFACE_AGE)
1154 AC_SUBST(LIBGUILE_INTERFACE)
1155
1156 AC_SUBST(LIBGUILE_SRFI_SRFI_1_INTERFACE_CURRENT)
1157 AC_SUBST(LIBGUILE_SRFI_SRFI_1_INTERFACE_REVISION)
1158 AC_SUBST(LIBGUILE_SRFI_SRFI_1_INTERFACE_AGE)
1159 AC_SUBST(LIBGUILE_SRFI_SRFI_1_INTERFACE)
1160
1161 AC_SUBST(LIBGUILE_SRFI_SRFI_4_INTERFACE_CURRENT)
1162 AC_SUBST(LIBGUILE_SRFI_SRFI_4_INTERFACE_REVISION)
1163 AC_SUBST(LIBGUILE_SRFI_SRFI_4_INTERFACE_AGE)
1164 AC_SUBST(LIBGUILE_SRFI_SRFI_4_INTERFACE)
1165
1166 AC_SUBST(LIBGUILE_SRFI_SRFI_13_14_INTERFACE_CURRENT)
1167 AC_SUBST(LIBGUILE_SRFI_SRFI_13_14_INTERFACE_REVISION)
1168 AC_SUBST(LIBGUILE_SRFI_SRFI_13_14_INTERFACE_AGE)
1169 AC_SUBST(LIBGUILE_SRFI_SRFI_13_14_INTERFACE)
1170
1171 #######################################################################
1172
1173 dnl Tell guile-config what flags guile users should link against.
1174 GUILE_LIBS="$LDFLAGS $THREAD_LIBS_INSTALLED $LIBS"
1175 AC_SUBST(GUILE_LIBS)
1176
1177 AC_SUBST(AWK)
1178 AC_SUBST(LIBLOBJS)
1179 AC_SUBST(EXTRA_DOT_DOC_FILES)
1180 AC_SUBST(EXTRA_DOT_X_FILES)
1181
1182 dnl See also top_builddir in info node: (libtool)AC_PROG_LIBTOOL
1183 top_builddir_absolute=`pwd`
1184 AC_SUBST(top_builddir_absolute)
1185 top_srcdir_absolute=`(cd $srcdir && pwd)`
1186 AC_SUBST(top_srcdir_absolute)
1187
1188 # Additional SCM_I_GSC definitions are above.
1189 AC_SUBST([SCM_I_GSC_GUILE_DEBUG])
1190 AC_SUBST([SCM_I_GSC_GUILE_DEBUG_FREELIST])
1191 AC_SUBST([SCM_I_GSC_ENABLE_DISCOURAGED])
1192 AC_SUBST([SCM_I_GSC_ENABLE_DEPRECATED])
1193 AC_SUBST([SCM_I_GSC_ENABLE_ELISP])
1194 AC_SUBST([SCM_I_GSC_HAVE_ARRAYS])
1195 AC_SUBST([SCM_I_GSC_STACK_GROWS_UP])
1196 AC_SUBST([SCM_I_GSC_C_INLINE])
1197 AC_CONFIG_FILES([libguile/gen-scmconfig.h])
1198
1199 AC_CONFIG_FILES([
1200   Makefile
1201   am/Makefile
1202   benchmark-suite/Makefile
1203   doc/Makefile
1204   doc/goops/Makefile
1205   doc/r5rs/Makefile
1206   doc/ref/Makefile
1207   doc/tutorial/Makefile
1208   emacs/Makefile
1209   examples/Makefile
1210   examples/box-dynamic-module/Makefile
1211   examples/box-dynamic/Makefile
1212   examples/box-module/Makefile
1213   examples/box/Makefile
1214   examples/modules/Makefile
1215   examples/safe/Makefile
1216   examples/scripts/Makefile
1217   guile-config/Makefile
1218   ice-9/Makefile
1219   ice-9/debugger/Makefile
1220   ice-9/debugger/breakpoints/Makefile
1221   lang/Makefile
1222   lang/elisp/Makefile
1223   lang/elisp/internals/Makefile
1224   lang/elisp/primitives/Makefile
1225   libguile-ltdl/Makefile
1226   libguile-ltdl/upstream/Makefile
1227   libguile/Makefile
1228   oop/Makefile
1229   oop/goops/Makefile
1230   scripts/Makefile
1231   srfi/Makefile
1232   test-suite/Makefile
1233   test-suite/standalone/Makefile
1234 ])
1235
1236 AC_CONFIG_FILES([check-guile], [chmod +x check-guile])
1237 AC_CONFIG_FILES([benchmark-guile], [chmod +x benchmark-guile])
1238 AC_CONFIG_FILES([guile-tools], [chmod +x guile-tools])
1239 AC_CONFIG_FILES([pre-inst-guile], [chmod +x pre-inst-guile])
1240 AC_CONFIG_FILES([pre-inst-guile-env], [chmod +x pre-inst-guile-env])
1241 AC_CONFIG_FILES([libguile/guile-snarf],
1242                 [chmod +x libguile/guile-snarf])
1243 AC_CONFIG_FILES([libguile/guile-doc-snarf],
1244                 [chmod +x libguile/guile-doc-snarf])
1245 AC_CONFIG_FILES([libguile/guile-func-name-check],
1246                 [chmod +x libguile/guile-func-name-check])
1247 AC_CONFIG_FILES([libguile/guile-snarf-docs],
1248                 [chmod +x libguile/guile-snarf-docs])
1249
1250 AC_OUTPUT
1251
1252 dnl Local Variables:
1253 dnl comment-start: "dnl "
1254 dnl comment-end: ""
1255 dnl comment-start-skip: "\\bdnl\\b\\s *"
1256 dnl End: