configure.ac

   1 dnl
   2 dnl Configure.in file for the Midnight Commander
   3 dnl
   4
   5 AC_PREREQ(2.60)
   6 AC_INIT([GNU Midnight Commander], [], [mc-devel@gnome.org])
   7 m4_pattern_forbid(MC_)
   8 AC_CONFIG_MACRO_DIR([m4])
   9 AC_CONFIG_AUX_DIR(config)
  10 AC_CONFIG_SRCDIR(src/main.c)
  11 AC_CONFIG_HEADERS(config.h)
  12 MC_VERSION
  13 AM_INIT_AUTOMAKE(mc, ${VERSION} )
  14 dnl Enable silent rules by default (if yes)
  15 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
  16
  17 AM_MAINTAINER_MODE
  18
  19 AC_CANONICAL_HOST
  20
  21 AC_USE_SYSTEM_EXTENSIONS
  22
  23
  24 dnl ############################################################################
  25 dnl Check for compiler
  26 dnl ############################################################################
  27
  28 AC_PROG_CC_STDC
  29 AM_PROG_CC_C_O
  30
  31 MC_CHECK_CFLAGS
  32
  33 CFLAGS_OPTS=""
  34 if test "x$CFLAGS" = "x"; then
  35     CFLAGS_OPTS=" -O2 "
  36 fi
  37 if test x$USE_MAINTAINER_MODE = xyes; then
  38     CFLAGS_OPTS="-g3 -O -ggdb"
  39     AC_DEFINE(USE_MAINTAINER_MODE, 1, [Use maintainer mode])
  40 fi
  41
  42 AC_ARG_ENABLE([werror],
  43     AS_HELP_STRING([--enable-werror], [Handle all compiler warnings as errors]))
  44 if test "x$enable_werror" = xyes; then
  45     MC_CHECK_ONE_CFLAG([-Werror])
  46 fi
  47
  48 AC_PROG_LIBTOOL
  49
  50
  51 dnl ############################################################################
  52 dnl Check for programs
  53 dnl ############################################################################
  54
  55 PKG_PROG_PKG_CONFIG
  56 AC_PROG_INSTALL
  57 AC_PROG_LN_S
  58 AC_PATH_PROG([PERL], [perl], [/usr/bin/perl])
  59 AC_PATH_PROG([PYTHON], [python], [/usr/bin/python])
  60 AC_PATH_PROG([RUBY], [ruby], [/usr/bin/ruby])
  61
  62 dnl Check nroff and the options it supports
  63 AC_CHECK_PROG(HAVE_nroff, nroff, true, false)
  64 dnl Default values
  65 MANDOC=-man
  66 MAN_FLAGS=
  67 if $HAVE_nroff; then
  68     AC_MSG_CHECKING([for manual formatting macros])
  69     AC_CACHE_VAL(mc_cv_mandoc, [
  70     nroff -mandoc < /dev/null > /dev/null 2>&1
  71     if test $? = 0; then
  72         mc_cv_mandoc=-mandoc
  73     else
  74         mc_cv_mandoc=-man
  75     fi
  76     ])
  77     MANDOC=$mc_cv_mandoc
  78     AC_MSG_RESULT([$MANDOC])
  79
  80     AC_MSG_CHECKING([for option to disable ANSI color in manuals])
  81     AC_CACHE_VAL(mc_cv_man_nocolor, [
  82     nroff -c < /dev/null > /dev/null 2>&1
  83     if test $? = 0; then
  84         mc_cv_man_nocolor=-c
  85     else
  86         mc_cv_man_nocolor=
  87     fi
  88     ])
  89     MAN_FLAGS=$mc_cv_man_nocolor
  90     AC_MSG_RESULT([${MAN_NOCOLOR-none}])
  91
  92     AC_MSG_CHECKING([if nroff accepts -Tlatin1 or -Tascii])
  93     AC_CACHE_VAL(mc_cv_nroff_tascii, [
  94     mc_cv_nroff_tascii=
  95     nroff -Tlatin1 < /dev/null > /dev/null 2>&1 /dev/null
  96     if test $? = 0; then
  97         mc_cv_nroff_tascii=-Tlatin1
  98     else
  99         nroff -Tascii < /dev/null > /dev/null 2>&1 /dev/null
 100         if test $? = 0; then
 101             mc_cv_nroff_tascii=-Tascii
 102         fi
 103     fi
 104     ])
 105     AC_MSG_RESULT([${mc_cv_nroff_tascii-no}])
 106     MAN_FLAGS="$MAN_FLAGS $mc_cv_nroff_tascii"
 107 fi
 108
 109 AC_SUBST(MANDOC)
 110 AC_SUBST(MAN_FLAGS)
 111
 112 dnl Check for -L option to file
 113 AC_CHECK_PROG(HAVE_FILECMD, file, true, false)
 114 if $HAVE_FILECMD; then
 115     AC_MSG_CHECKING([for -L option to file command])
 116     AC_CACHE_VAL(mc_cv_filel, [
 117     file -L . > /dev/null 2>&1
 118     if test $? = 0; then
 119         mc_cv_filel=yes
 120     else
 121         mc_cv_filel=no
 122     fi
 123     ])
 124     if test x$mc_cv_filel = xyes; then
 125         AC_DEFINE(FILE_L, 1, [Define if the file command accepts the -L option])
 126     fi
 127     filel=$mc_cv_filel
 128     AC_MSG_RESULT([$filel])
 129 fi
 130
 131 dnl Only list browsers here that can be run in background (i.e. with `&')
 132 AC_CHECK_PROGS(X11_WWW, [gnome-moz-remote mozilla firefox konqueror opera])
 133
 134
 135 dnl ############################################################################
 136 dnl Check for other tools
 137 dnl ############################################################################
 138
 139 AC_CHECK_TOOL(AR, ar, ar)
 140 MC_UNIT_TESTS
 141
 142
 143 dnl ############################################################################
 144 dnl Check for main libraies
 145 dnl ############################################################################
 146
 147 AC_CHECK_GLIB
 148 AC_G_MODULE_SUPPORTED
 149 MC_WITH_SCREEN
 150 MC_CHECK_SEARCH_TYPE
 151 dnl X11 support. Used to read keyboard modifiers when running under X11.
 152 MC_WITH_X
 153
 154
 155 dnl ############################################################################
 156 dnl Check for header files
 157 dnl ############################################################################
 158
 159 AC_CHECK_HEADERS([string.h memory.h limits.h malloc.h \
 160         utime.h sys/statfs.h sys/vfs.h \
 161         sys/select.h sys/ioctl.h stropts.h arpa/inet.h \
 162         sys/socket.h])
 163 AC_HEADER_MAJOR
 164 AC_HEADER_ASSERT
 165
 166
 167 dnl ############################################################################
 168 dnl Check for types
 169 dnl ############################################################################
 170
 171 dnl Check largefile before type sizeof checks
 172 AC_SYS_LARGEFILE
 173
 174 AC_CHECK_SIZEOF(long)
 175 AC_TYPE_UINTMAX_T
 176 AC_CHECK_SIZEOF(uintmax_t)
 177 AC_TYPE_OFF_T
 178 AC_CHECK_SIZEOF(off_t)
 179 AC_TYPE_MODE_T
 180 AC_TYPE_PID_T
 181 AC_TYPE_UID_T
 182
 183 AC_STRUCT_ST_BLOCKS
 184 AC_CHECK_MEMBERS([struct stat.st_blksize, struct stat.st_rdev])
 185
 186 AH_TEMPLATE([sig_atomic_t],
 187             [/* Define to `int' if <signal.h> doesn't define.])
 188 AH_TEMPLATE([SIG_ATOMIC_VOLATILE_T],
 189             [Some systems declare sig_atomic_t as volatile, some others -- no.
 190              This define will have value `sig_atomic_t' or
 191              `volatile sig_atomic_t' accordingly.])
 192
 193 AC_MSG_CHECKING(for sig_atomic_t in signal.h)
 194 AC_EGREP_HEADER(sig_atomic_t,signal.h,
 195   [
 196     ac_cv_type_sig_atomic_t=yes;
 197     AC_EGREP_HEADER(volatile.*sig_atomic_t,
 198                     signal.h,
 199                     [
 200                         is_sig_atomic_t_volatile=yes;
 201                         AC_MSG_RESULT([yes, volatile])
 202                     ],
 203                     [
 204                         is_sig_atomic_t_volatile=no;
 205                         AC_MSG_RESULT([yes, non volatile])
 206                     ])
 207   ],
 208   [
 209     AC_MSG_RESULT(no)
 210     AC_CHECK_TYPE(sig_atomic_t, int)
 211     is_sig_atomic_t_volatile=no
 212   ])
 213 if test $is_sig_atomic_t_volatile = 'yes'
 214 then
 215     AC_DEFINE(SIG_ATOMIC_VOLATILE_T, sig_atomic_t)
 216 else
 217     AC_DEFINE(SIG_ATOMIC_VOLATILE_T, [volatile sig_atomic_t])
 218 fi
 219
 220
 221 dnl ############################################################################
 222 dnl Check for functions
 223 dnl ############################################################################
 224
 225 AC_CHECK_FUNCS([\
 226         strverscmp \
 227         strncasecmp \
 228         realpath
 229 ])
 230
 231 dnl getpt is a GNU Extension (glibc 2.1.x)
 232 AC_CHECK_FUNCS(posix_openpt, , [AC_CHECK_FUNCS(getpt)])
 233 AC_CHECK_FUNCS(grantpt, , [AC_CHECK_LIB(pt, grantpt)])
 234
 235 dnl replacing lstat with statlstat on sco makes it more portable between
 236 dnl sco clones
 237 AC_CHECK_FUNCS(statlstat)
 238
 239 dnl Ovverriding mmap support.  This has to be before AC_FUNC_MMAP is used.
 240 dnl We use only part of the functionality of mmap, so on AIX,
 241 dnl it's possible to use mmap, even if it doesn't pass the autoconf test.
 242 AC_ARG_WITH([mmap],
 243         AS_HELP_STRING([--with-mmap], [Use the mmap call @<:@yes if found@:>@]))
 244 if test x$with_mmap != xno; then
 245     if test x$with_mmap = x; then
 246         AC_FUNC_MMAP
 247     else
 248         AC_DEFINE(HAVE_MMAP, 1)
 249     fi
 250 fi
 251
 252 dnl Sequent wants getprocessstats
 253 AC_CHECK_LIB(seq, get_process_stats, [
 254         LIBS="$LIBS -lseq"
 255         AC_DEFINE(HAVE_GET_PROCESS_STATS, 1,
 256                   [Define if you have function `get_process_stats' and
 257 have to use that instead of gettimeofday])])
 258
 259 mc_AC_GET_FS_INFO
 260
 261
 262 dnl ############################################################################
 263 dnl Internationalization
 264 dnl ############################################################################
 265
 266 AM_GNU_GETTEXT(no-libtool, need-ngettext)
 267 AM_GNU_GETTEXT_VERSION(0.14.3)
 268
 269 MC_I18N
 270
 271 dnl ############################################################################
 272 dnl OS specific flags
 273 dnl ############################################################################
 274
 275 case $host_os in
 276 aux*)
 277     # A/UX
 278     LIBS="$LIBS -lposix"
 279     AC_DEFINE(_POSIX_SOURCE)
 280     ;;
 281 esac
 282
 283 dnl If running under AIX, AC_AIX does not tell us that
 284 AC_MSG_CHECKING([for AIX defines])
 285 AC_EGREP_CPP([yes],
 286     [
 287         #if defined(AIX) || defined(_AIX) || defined(__aix__) || defined(aix)
 288         yes
 289         #endif
 290     ],
 291     [
 292         AC_DEFINE(IS_AIX, 1, [Define if compiling for AIX])
 293         AC_MSG_RESULT(yes)
 294     ],
 295     [
 296         AC_MSG_RESULT(no)
 297     ])
 298
 299 dnl Check if the OS is supported by the console saver.
 300 cons_saver=""
 301 case $host_os in
 302 linux*)
 303     cons_saver=yes
 304 esac
 305
 306 dnl Check for gpm mouse support (Linux only)
 307 mouse_lib="xterm only"
 308 AC_ARG_WITH([gpm-mouse],
 309     AS_HELP_STRING([--with-gpm-mouse], [Compile with gpm mouse support (Linux only) @<:@yes if found@:>@]))
 310
 311 case $host_os in
 312 linux*)
 313     if test x$with_gpm_mouse != xno; then
 314         AC_CHECK_LIB(gpm, Gpm_Repeat,
 315             [AC_DEFINE(HAVE_LIBGPM, 1,
 316                        [Define to enable gpm mouse support on Linux])
 317             mouse_lib="gpm and xterm"
 318             MCLIBS="$MCLIBS -lgpm"],
 319             if test "x$with_gpm_mouse" = "xyes"; then
 320                 [AC_MSG_ERROR([libgpm is missing or older than 0.18])]
 321             else
 322                 [AC_MSG_WARN([libgpm is missing or older than 0.18])]
 323             fi
 324         )
 325     fi
 326     ;;
 327 esac
 328
 329
 330 dnl ############################################################################
 331 dnl libmc
 332 dnl ############################################################################
 333
 334 LIBMC_VERSION="0.0.1"
 335 LIBMC_RELEASE="1"
 336 AC_SUBST(LIBMC_VERSION)
 337 AC_SUBST(LIBMC_RELEASE)
 338
 339 AC_ARG_ENABLE([mclib],
 340         [AS_HELP_STRING([--enable-mclib], [Compile shared library libmc.so @<:@no@:>@])],
 341         [
 342             if test "x$enableval" = "xno" ; then
 343                 enable_mclib=no
 344             else
 345                 if test "x$enable_shared" = "xno" ; then
 346                     AC_MSG_WARN([Build of shared library is disabled. Specify --enable-shared first])
 347                     enable_mclib=no
 348                 else
 349                     enable_mclib=yes
 350                 fi
 351             fi
 352         ],
 353         [enable_mclib=no])
 354
 355 AM_CONDITIONAL([ENABLE_MCLIB], [test x$enable_mclib = xyes])
 356
 357
 358 dnl ############################################################################
 359 dnl Where config files should be placed
 360 dnl ############################################################################
 361
 362 AC_ARG_WITH([homedir],
 363     AS_HELP_STRING([--with-homedir],
 364                    [Choose any place of user settings relative to home dir, or XDG for respect XDG standards @<:@XDG@:>@]),
 365     [
 366         if test "x$withval" = "xXDG"; then
 367             with_homedir=XDG
 368         else
 369             with_homedir=$withval
 370         fi
 371     ],
 372     [with_homedir=XDG])
 373
 374
 375 if test x$with_homedir = xXDG; then
 376     AC_DEFINE(MC_HOMEDIR_XDG, 1,
 377         [Define to enable XDG standard support])
 378 else
 379     AC_DEFINE_UNQUOTED([MC_USERCONF_DIR], ["$with_homedir"], [Where configs will be placed relative to $HOME])
 380 fi
 381
 382
 383 dnl ############################################################################
 384 dnl MC options
 385 dnl ############################################################################
 386
 387 MC_WITH_INTERNAL_EDIT
 388
 389 dnl Diff viewer support.
 390 AC_ARG_WITH([diff_viewer],
 391     AS_HELP_STRING([--with-diff-viewer], [Compile with diff viewer @<:@yes@:>@]))
 392
 393 if test x$with_diff_viewer != xno; then
 394         AC_DEFINE(USE_DIFF_VIEW, 1, [Define to enable diff viewer])
 395         use_diff=yes
 396         diff_msg="yes"
 397         AC_MSG_NOTICE([using diff viewer])
 398 else
 399         diff_msg="no"
 400 fi
 401
 402 MC_SUBSHELL
 403 MC_BACKGROUND
 404 AC_MC_VFS_CHECKS
 405
 406 dnl ############################################################################
 407 dnl Directories
 408 dnl ############################################################################
 409
 410 dnl ${prefix} and ${exec_prefix} are undefined here if --prefix is not used in command line
 411 dnl Let define ${prefix} and ${exec_prefix}
 412 test "x$prefix" = "xNONE" && prefix="$ac_default_prefix"
 413 test "x$exec_prefix" = "xNONE" && exec_prefix="${prefix}"
 414
 415 if test x${libexecdir} = x'${exec_prefix}/libexec'; then
 416     EXTHELPERSDIR=${prefix}/libexec/${PACKAGE}/ext.d
 417 elif test x${libexecdir} = x'${exec_prefix}/lib'; then
 418     EXTHELPERSDIR=${prefix}/lib/${PACKAGE}/ext.d
 419 else
 420     EXTHELPERSDIR=${libexecdir}/${PACKAGE}/ext.d
 421 fi
 422 AC_SUBST(EXTHELPERSDIR)
 423
 424
 425 dnl ############################################################################
 426 dnl Documentation
 427 dnl ############################################################################
 428
 429 MAN_DATE="$(LC_ALL=C date "+%B %Y")"
 430 AC_SUBST(MAN_DATE)
 431
 432 dnl Determine which help translations we want to install.
 433 ALL_DOC_LINGUAS="es hu it pl ru sr"
 434
 435 DOC_LINGUAS=
 436 if test "x$USE_NLS" = xyes; then
 437     if test -z "$LINGUAS"; then
 438         langs="`grep -v '^#' $srcdir/po/LINGUAS`"
 439     else
 440         langs="$LINGUAS"
 441     fi
 442 else
 443     langs=
 444 fi
 445
 446 for h_lang in $ALL_DOC_LINGUAS; do
 447     for lang in $langs; do
 448         if test "$lang" = "$h_lang"; then
 449             DOC_LINGUAS="$DOC_LINGUAS $lang"
 450             break
 451         fi
 452     done
 453 done
 454 AC_SUBST(DOC_LINGUAS)
 455
 456 DX_HTML_FEATURE(ON)
 457 DX_CHM_FEATURE(OFF)
 458 DX_CHI_FEATURE(OFF)
 459 DX_MAN_FEATURE(OFF)
 460 DX_RTF_FEATURE(OFF)
 461 DX_XML_FEATURE(OFF)
 462 DX_PDF_FEATURE(OFF)
 463 DX_PS_FEATURE(OFF)
 464 DX_INIT_DOXYGEN(mc,doxygen.cfg,devel)
 465
 466
 467 dnl ############################################################################
 468 dnl Configure results
 469 dnl ############################################################################
 470
 471 CFLAGS="$mc_configured_cflags $CFLAGS_OPTS $CFLAGS"
 472
 473 AC_SUBST(MCLIBS)
 474 AC_SUBST(CFLAGS)
 475 AC_SUBST(CPPFLAGS)
 476 AC_SUBST(LDFLAGS)
 477 AC_SUBST(LIBS)
 478
 479 AM_CONDITIONAL(USE_NLS, [test x"$USE_NLS" = xyes])
 480 AM_CONDITIONAL(USE_MAINTAINER_MODE, [test x"$USE_MAINTAINER_MODE" = xyes])
 481 AM_CONDITIONAL(USE_SCREEN_SLANG, [test x"$with_screen" = xslang])
 482 AM_CONDITIONAL(USE_INTERNAL_EDIT, [test x"$use_internal_edit" = xyes ])
 483 AM_CONDITIONAL(USE_ASPELL, [test x"$enable_aspell" = xyes ])
 484 AM_CONDITIONAL(USE_DIFF, [test -n "$use_diff"])
 485 AM_CONDITIONAL(CHARSET, [test -n "$have_charset"])
 486 AM_CONDITIONAL(CONS_SAVER, [test -n "$cons_saver"])
 487 dnl Clarify do we really need GModule
 488 AM_CONDITIONAL([HAVE_GMODULE], [test -n "$g_module_supported" && \
 489                                 test x"$textmode_x11_support" = x"yes" -o x"$enable_aspell" = x"yes"])
 490
 491 AC_DEFINE_UNQUOTED([MC_CONFIGURE_ARGS], ["$ac_configure_args"], [MC configure arguments])
 492
 493 AC_CONFIG_FILES(
 494 [
 495 src/man2hlp/man2hlp
 496 ],
 497 [
 498 chmod +x src/man2hlp/man2hlp
 499 ])
 500
 501 AC_CONFIG_FILES([
 502 Makefile
 503
 504 contrib/Makefile
 505 contrib/dist/Makefile
 506 contrib/dist/gentoo/Makefile
 507 contrib/dist/redhat/Makefile
 508 contrib/dist/redhat/mc.spec
 509 contrib/dist/pkginfo
 510 contrib/dist/prototype
 511
 512 misc/Makefile
 513 misc/skins/Makefile
 514 misc/ext.d/Makefile
 515 misc/ext.d/doc.sh
 516 misc/ext.d/misc.sh
 517 misc/ext.d/text.sh
 518 misc/ext.d/web.sh
 519 misc/macros.d/Makefile
 520 misc/mc.ext
 521
 522 src/Makefile
 523 src/consaver/Makefile
 524 src/editor/Makefile
 525 src/man2hlp/Makefile
 526 src/viewer/Makefile
 527 src/diffviewer/Makefile
 528 src/filemanager/Makefile
 529
 530 src/vfs/Makefile
 531
 532 src/vfs/cpio/Makefile
 533
 534 src/vfs/extfs/Makefile
 535 src/vfs/extfs/helpers/Makefile
 536 src/vfs/extfs/helpers/a+
 537 src/vfs/extfs/helpers/apt+
 538 src/vfs/extfs/helpers/audio
 539 src/vfs/extfs/helpers/deb
 540 src/vfs/extfs/helpers/deba
 541 src/vfs/extfs/helpers/debd
 542 src/vfs/extfs/helpers/dpkg+
 543 src/vfs/extfs/helpers/iso9660
 544 src/vfs/extfs/helpers/hp48+
 545 src/vfs/extfs/helpers/lslR
 546 src/vfs/extfs/helpers/mailfs
 547 src/vfs/extfs/helpers/patchfs
 548 src/vfs/extfs/helpers/rpms+
 549 src/vfs/extfs/helpers/s3+
 550 src/vfs/extfs/helpers/uace
 551 src/vfs/extfs/helpers/ualz
 552 src/vfs/extfs/helpers/uar
 553 src/vfs/extfs/helpers/uarc
 554 src/vfs/extfs/helpers/uarj
 555 src/vfs/extfs/helpers/uc1541
 556 src/vfs/extfs/helpers/ucab
 557 src/vfs/extfs/helpers/uha
 558 src/vfs/extfs/helpers/ulha
 559 src/vfs/extfs/helpers/ulib
 560 src/vfs/extfs/helpers/urar
 561 src/vfs/extfs/helpers/uzip
 562 src/vfs/extfs/helpers/uzoo
 563
 564 src/vfs/fish/Makefile
 565 src/vfs/fish/helpers/Makefile
 566
 567 src/vfs/ftpfs/Makefile
 568
 569 src/vfs/sftpfs/Makefile
 570
 571 src/vfs/local/Makefile
 572
 573 src/vfs/sfs/Makefile
 574
 575 src/vfs/smbfs/Makefile
 576
 577 src/vfs/tar/Makefile
 578
 579 src/vfs/undelfs/Makefile
 580
 581 lib/Makefile
 582 lib/event/Makefile
 583 lib/filehighlight/Makefile
 584 lib/mcconfig/Makefile
 585 lib/search/Makefile
 586 lib/skin/Makefile
 587 lib/strutil/Makefile
 588 lib/tty/Makefile
 589
 590 lib/vfs/Makefile
 591
 592 lib/widget/Makefile
 593
 594 misc/syntax/Makefile
 595 misc/syntax/Syntax
 596
 597 doc/Makefile
 598
 599 doc/hints/Makefile
 600 doc/hints/l10n/Makefile
 601
 602 doc/man/Makefile
 603 doc/man/es/Makefile
 604 doc/man/hu/Makefile
 605 doc/man/it/Makefile
 606 doc/man/pl/Makefile
 607 doc/man/ru/Makefile
 608 doc/man/sr/Makefile
 609
 610 doc/hlp/Makefile
 611 doc/hlp/es/Makefile
 612 doc/hlp/hu/Makefile
 613 doc/hlp/it/Makefile
 614 doc/hlp/pl/Makefile
 615 doc/hlp/ru/Makefile
 616 doc/hlp/sr/Makefile
 617
 618 intl/Makefile
 619 po/Makefile.in
 620 ])
 621
 622 if test x$enable_tests != xno; then
 623     AC_CONFIG_FILES([
 624 tests/Makefile
 625 tests/lib/Makefile
 626 tests/lib/mcconfig/Makefile
 627 tests/lib/search/Makefile
 628 tests/lib/strutil/Makefile
 629 tests/lib/vfs/Makefile
 630 tests/lib/widget/Makefile
 631 tests/src/Makefile
 632 tests/src/filemanager/Makefile
 633 tests/src/editor/Makefile
 634 tests/src/editor/test-data.txt
 635 ])
 636 fi
 637
 638 AC_OUTPUT
 639
 640 AC_MSG_NOTICE([
 641
 642 Configuration:
 643
 644   Source code location:       ${srcdir}
 645   Compiler:                   ${CC}
 646   Compiler flags:             ${CFLAGS}
 647   File system:                ${vfs_type}
 648                               ${vfs_flags}
 649   Screen library:             ${screen_msg}
 650   Mouse support:              ${mouse_lib}
 651   X11 events support:         ${textmode_x11_support}
 652   With subshell support:      ${subshell}
 653   With background operations: ${enable_background}
 654   Internal editor:            ${edit_msg}
 655   Diff viewer:                ${diff_msg}
 656   Support for charset:        ${charset_msg}
 657   Search type:                ${SEARCH_TYPE}
 658 ])
 659
 660 dnl option checking is disable by default due to AC_CONFIG_SUBDIRS
 661 dnl we enable it back for top-level ./configure
 662 if test -n "$ac_unrecognized_opts"; then
 663   case $enable_option_checking in
 664     fatal) AC_MSG_ERROR([unrecognized options: $ac_unrecognized_opts]) ;;
 665     *)     AC_MSG_WARN( [unrecognized options: $ac_unrecognized_opts]) ;;
 666   esac
 667 fi