3 dnl| Copyright 1992-2001, 2002, 2003, 2004, 2005, 2006, 2007,
4 dnl| 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Free Software Foundation, Inc.
6 dnl| GNU XBoard is free software: you can redistribute it and/or modify
7 dnl| it under the terms of the GNU General Public License as published by
8 dnl| the Free Software Foundation, either version 3 of the License, or (at
9 dnl| your option) any later version.
11 dnl| GNU XBoard is distributed in the hope that it will be useful, but
12 dnl| WITHOUT ANY WARRANTY; without even the implied warranty of
13 dnl| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 dnl| General Public License for more details.
16 dnl| You should have received a copy of the GNU General Public License
17 dnl| along with this program. If not, see http://www.gnu.org/licenses/.
19 dnl| --------------------------------------------------------------------
21 dnl| You can process this file with autoconf to produce a configure script.
22 dnl| However, normally the supplied configure script will work fine.
24 dnl| If you do need to change the configure script, instead of editing
25 dnl| it directly, try to edit configure.in (in a way that will keep
26 dnl| it portable to sites and systems other than your own), and run autoconf
27 dnl| to regenerate configure. Then submit your changes to be folded into
28 dnl| the standard version of xboard.
30 dnl| define second argument as MAJOR.MINOR.PATCHLEVEL. e.g. 4.4.0
31 dnl| MAJOR means large changes
32 dnl| MINOR can includes new features and bug fixes
33 dnl| PATCHLEVEL is used for bugfixes only
34 dnl| pre-release version have a -YYYYMMDD attached, e.g 4.9.0-20160313
35 AC_INIT([xboard],[4.9.0-20160402],[bug-xboard@gnu.org])
37 dnl| need this to be able to compile some files in a subdir (filebrowser)
38 AM_INIT_AUTOMAKE([subdir-objects])
39 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
41 AC_CONFIG_HEADERS([config.h])
43 dnl | a bunch of templates for defines used below
44 AH_TEMPLATE([FIRST_PTY_LETTER],[template])
45 AH_TEMPLATE([HAVE_FCNTL_H],[template])
46 AH_TEMPLATE([HAVE_GETHOSTNAME],[template])
47 AH_TEMPLATE([HAVE_GETTIMEOFDAY],[template])
48 AH_TEMPLATE([HAVE_RANDOM],[template])
49 AH_TEMPLATE([HAVE_SYS_SOCKET_H],[template])
50 AH_TEMPLATE([IBMRTAIX],[template])
51 AH_TEMPLATE([LAST_PTY_LETTER],[template])
52 AH_TEMPLATE([PTY_ITERATION],[template])
53 AH_TEMPLATE([PTY_NAME_SPRINTF],[template])
54 AH_TEMPLATE([PTY_OPEN],[template])
55 AH_TEMPLATE([PTY_TTY_NAME_SPRINTF],[template])
56 AH_TEMPLATE([REMOTE_SHELL],[template])
57 AH_TEMPLATE([RTU],[template])
58 AH_TEMPLATE([UNIPLUS],[template])
59 AH_TEMPLATE([USE_PTYS],[template])
60 AH_TEMPLATE([X_WCHAR],[template])
61 AH_TEMPLATE([ATTENTION],[template])
62 AH_TEMPLATE([DEFINED_SYS_ERRLIST],[template])
63 AH_TEMPLATE([USE_XAW3D],[template])
64 AH_TEMPLATE([X_LOCALE],[template])
68 if test -z "$CFLAGS" ; then
69 dnl| Prevent the next macro from setting CFLAGS to -g
74 dnl| need this to be able to compile files in a subdir
81 dnl| add gettext support
82 AM_GNU_GETTEXT_VERSION(0.17)
83 AM_GNU_GETTEXT([external])
85 AC_CHECK_PROGS(RSH, remsh rsh, rsh)
86 AC_CHECK_PROGS(MINFO, makeinfo, makeinfo_not_found)
87 if test "$MINFO" = makeinfo_not_found ; then
88 echo Please install \"makeinfo\"
91 AC_DEFINE_UNQUOTED(REMOTE_SHELL, "$RSH")
92 AC_CHECK_PROG(NROFF, nroff, [nroff -man], cat)
94 AC_PATH_PROGS(AWKPATH, awk mawk gawk nawk)
95 AC_PATH_PROGS(PERLPATH, perl)
102 AC_CHECK_HEADERS(stropts.h sys/time.h string.h unistd.h sys/systeminfo.h)
103 AC_CHECK_HEADERS(fcntl.h sys/fcntl.h, break)
104 AC_CHECK_HEADERS(sys/socket.h lan/socket.h, break)
105 AC_CHECK_HEADER(stddef.h, [], AC_DEFINE(X_WCHAR, 1))
107 AC_CHECK_FUNCS(_getpty grantpt setitimer usleep)
108 AC_CHECK_FUNCS(gettimeofday ftime, break)
109 AC_CHECK_FUNCS(random rand48, break)
110 AC_CHECK_FUNCS(gethostname sysinfo, break)
111 AC_CHECK_FUNC(setlocale, [],
112 AC_CHECK_LIB(i, setlocale, [], AC_DEFINE(X_LOCALE, 1)))
114 AC_CHECK_LIB(seq, getpseudotty)
116 dnl | add compiler warnings only if compiler understands them
117 AC_MSG_CHECKING(whether compiler understands -Wall -Wno-parentheses)
118 SAVE_CFLAGS="$CFLAGS"
119 CFLAGS="$CFLAGS -Wall -Wno-parentheses"
120 AC_TRY_COMPILE([],[],
123 CFLAGS="$SAVE_CFLAGS")
125 dnl | check for pkg-config
126 AC_CHECK_PROGS([PKGCONFIG], [pkg-config], pkgconfig_not_found)
127 AS_IF( [test "x$PKGCONFIG" = xpkgconfig_not_found],
128 AC_MSG_ERROR([cannot find pkg-config! Please install it.]))
130 dnl | check for cairo and librsvg
131 PKG_CHECK_MODULES([CAIRO], [ cairo >= 1.2.0 pangocairo librsvg-2.0 >= 2.14.0 ])
132 AC_SUBST(CAIRO_CFLAGS)
135 dnl | check which front end to use
136 dnl | first check for gtk
138 dnl | and then for Xaw
143 [AS_HELP_STRING([--with-gtk],[use GTK front-end (default)])],
148 [AS_HELP_STRING([--with-Xaw3d],[use Xaw3d front-end (not fully supported anymore)])],
149 [with_Xaw3d="$withval"],
151 dnl | overwrite default gtk
152 AS_IF([test "x$with_Xaw3d" = xyes], [with_GTK="no"])
155 [AS_HELP_STRING([--with-Xaw],[use Xaw front-end])],
156 [with_Xaw="$withval"],
158 dnl | overwrite default gtk
159 AS_IF([test "x$with_Xaw" = xyes], [with_GTK="no"])
161 AC_ARG_WITH([iconsdir],
162 [AS_HELP_STRING([--with-iconsdir=DIR],
163 [path where icons get installed (default: $datadir/icons/hicolor/48x48/apps)])],
164 [ICONSDIR="$withval"],
165 [ICONSDIR='$(datadir)/icons/hicolor/48x48/apps'])
167 AC_ARG_WITH([svgiconsdir],
168 [AS_HELP_STRING([--with-svgiconsdir=DIR],
169 [path where svg icons get installed (default: $datadir/icons/hicolor/scalable/apps)])],
170 [SVGICONSDIR="$withval"],
171 [SVGICONSDIR='$(datadir)/icons/hicolor/scalable/apps'])
173 AC_ARG_WITH([desktopdir],
174 [AS_HELP_STRING([--with-desktopdir=DIR],
175 [path where desktop files get installed (default: $datadir/applications)])],
176 [DESKTOPDIR="$withval"],
177 [DESKTOPDIR='$(datadir)/applications'])
179 AC_ARG_WITH([mimedir],
180 [AS_HELP_STRING([--with-mimedir=DIR],
181 [path where mime files get installed (default: $datadir/mime/packages)])],
182 [MIMEDIR="$withval"],
183 [MIMEDIR='$(datadir)/mime/packages'])
185 AC_ARG_WITH([gamedatadir],
186 [AS_HELP_STRING([--with-gamedatadir=DIR],
187 [path where game data files get installed (default: $datadir/games/xboard)])],
188 [GAMEDATADIR="$withval"],
189 [GAMEDATADIR='$(datadir)/games/xboard'])
191 AC_ARG_ENABLE([update-mimedb],
192 [AS_HELP_STRING([--disable-update-mimedb],[disable the update-mime-database after install [default=no]])],
193 [enable_mimedb="no"],
194 [enable_mimedb="yes"])
196 AC_ARG_ENABLE([osxapp],
197 [AS_HELP_STRING([--enable-osxapp],[build a OSX app [default=no]])],
198 [enable_OSXAPP=$enableval],
199 [enable_OSXAPP="no"])
201 AS_IF([test x"$enable_OSXAPP" = x"yes"], [
202 prefix=`pwd`/XBoard.app/Contents
203 AC_DEFINE([OSXAPP], [1], [We are building an OSX APP, redefine some functions])
206 datarootdir='$(prefix)/Resources'
207 datadir='$(datarootdir)/share'
208 sysconfdir='$(datarootdir)/etc'
209 infodir='$(datadir)/info'
210 mandir='$(datadir)/man'
211 bindir='$(prefix)/MacOS'
212 localedir='$(datadir)/locale'
213 GAMEDATADIR='$(datadir)/xboard'],[])
215 AM_CONDITIONAL(OSX_APP, test x"$enable_OSXAPP" = x"yes")
217 AM_CONDITIONAL(NLS_ENABLED, test x"$USE_NLS" = x"yes")
219 AM_CONDITIONAL(ENABLE_UPDATE_MIMEDB, test x"$enable_mimedb" = x"yes")
220 if test x"$enable_mimedb" = x"yes"; then
221 AC_PATH_PROG([XDG_MIME],[xdg-mime])
223 AC_PATH_PROG([XDG_DESKTOP_MENU],[xdg-desktop-menu])
224 AC_SUBST(XDG_DESKTOP_MENU)
225 AC_PATH_PROG([XDG_ICON_RESOURCE],[xdg-icon-resource])
226 AC_SUBST(XDG_ICON_RESOURCE)
230 AC_SUBST(SVGICONSDIR)
233 AC_SUBST(GAMEDATADIR)
235 dnl | check for libraries
236 if test x"$with_GTK" = x"yes" ; then
237 PKG_CHECK_MODULES([GTK], [ gtk+-2.0 >= 2.16.0 gmodule-2.0 ])
238 FRONTEND_CFLAGS=$GTK_CFLAGS
239 FRONTEND_LIBS=$GTK_LIBS
243 if test x"$with_GTK" = x"no" ; then
245 dnl | general check for Xaw and Xaw3d
247 if test -n "$no_x" ; then
248 AC_MSG_ERROR([ " $PACKAGE requires the X Window System header files and libraries!
249 They were not found on your system. See FAQ topic C.2.
253 save_cflags="$CFLAGS"
254 save_cppflags="$CPPFLAGS"
255 CFLAGS="$CFLAGS $X_CFLAGS"
256 CPPFLAGS="$CPPFLAGS $X_CFLAGS"
257 AC_CHECK_HEADER([X11/Intrinsic.h],[xt="yes"],[xt="no"])
258 CFLAGS="$save_cflags"
259 CPPFLAGS="$save_cppflags"
261 if test "$xt" = "no" ; then
262 AC_MSG_ERROR([Xt headers not found. Please install the X11 packages.])
265 dnl | check availability of Xaw3d
267 AS_IF([test x"$with_Xaw3d" != x"no"],
268 [AC_CHECK_LIB([Xaw3d],
270 [ FRONTEND_LIBS="-lXaw3d"
271 AC_DEFINE([USE_XAW3D], [1], [Define if you want to use Xaw3d])],
272 [AC_MSG_ERROR([--with-Xaw3d was given, but test for Xaw3d failed. Make sure that you have Xaw3d installed, else you might want to try the configure option --without-Xaw3d])],
275 dnl | no Xaw3d, check for Xaw; make it the default
276 if test x"$with_Xaw3d" = x"no" ; then
278 save_cflags="$CFLAGS"
279 save_cppflags="$CPPFLAGS"
280 CFLAGS="$CFLAGS $X_CFLAGS"
281 CPPFLAGS="$CPPFLAGS $X_CFLAGS"
282 AC_CHECK_HEADER([X11/Xaw/Dialog.h],[xaw_headers="yes"], [xaw_headers="no"])
283 CFLAGS="$save_cflags"
284 CPPFLAGS="$save_cppflags"
286 if test x"$xaw_headers" = x"no" ; then
287 AC_MSG_ERROR([Xaw headers not found. Please install the Xaw package and headers.])
290 FRONTEND_LIBS="-lXaw"
295 dnl | make results available in Makefile.am
296 AM_CONDITIONAL([withGTK], [test x"$with_GTK" = x"yes"])
297 AM_CONDITIONAL([withXaw], [test x"$with_Xaw3d" = x"yes" || test x"$with_Xaw" = x"yes"])
299 dnl | end Front-end check
303 dnl| The following info is mostly gathered from GNU Emacs 19.24. Basically,
304 dnl| we are trying to find out whether this is a System-V derivative in
305 dnl| which pipes don't work with select() and if so, whether there is anything
306 dnl| strange about the way to open a pty. Some of the work was done above
307 dnl| by looking for _getpty, grantpt, and getpseudotty. A few other strange
308 dnl| properties of particular systems are also handled here.
310 dnl| 4/6/97 I'm not sure there really are any systems where pipes
311 dnl| don't work with select(), and ptys cause problems on many
312 dnl| systems, so I'm changing the default to disable ptys in all
313 dnl| cases. I will change it back if I get bug reports that are fixed
314 dnl| by doing a "configure --enable-ptys"
319 AC_DEFINE(PTY_TTY_NAME_SPRINTF,
320 [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
321 AC_DEFINE(PTY_NAME_SPRINTF,
322 [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
324 if test "$GCC" = yes; then
325 CONF_CFLAGS="-fwritable-strings"
328 dnl| Note: You might be able to build xboard even if your compiler does not
329 dnl| support ANSI C (-Aa). xboard itself does not require ANSI C. I don't
330 dnl| know whether the X header files on HP-UX require it.
332 CONF_CFLAGS="-Aa -D_HPUX_SOURCE"
335 dnl| HP doesn't supply a full set of X header files and libraries. People
336 dnl| often have some things installed in one place and some in another.
337 dnl| AC_PATH_XTRA will find only one place, so we try to add all the
338 dnl| likely ones that might be missing here. It might be better to
339 dnl| change AC_PATH_XTRA to try to extract this information from imake,
340 dnl| since folks who install the missing bits often configure their
341 dnl| imake to find them, but I don't want to delve into autoconf and
342 dnl| hack on its internals.
344 if test -d /opt/hppd/include/X11; then
345 X_CFLAGS="$X_CFLAGS -I/opt/hppd/include"
346 X_LIBS="$X_LIBS -L/opt/hppd/lib"
347 elif test -d /usr/contrib/X11R5/include; then
348 X_CFLAGS="$X_CFLAGS -I/usr/contrib/X11R5/include"
349 X_LIBS="$X_LIBS -L/usr/contrib/X11R5/lib"
350 elif test -d /usr/contrib/mitX11R5/include; then
351 X_CFLAGS="$X_CFLAGS -I/usr/contrib/mitX11R5/include"
352 X_LIBS="$X_LIBS -L/usr/contrib/mitX11R5/lib"
353 elif test -d /MIT/X11R5/include; then
354 X_CFLAGS="$X_CFLAGS -I/MIT/X11R5/include"
355 X_LIBS="$X_LIBS -L/MIT/X11R5/lib"
356 elif test -d /usr/local/include/X11R5; then
357 X_CFLAGS="$X_CFLAGS -I/usr/local/include/X11R5"
358 X_LIBS="$X_LIBS -L/usr/local/lib/X11R5"
360 if test -d /usr/include/X11R5; then
361 X_CFLAGS="$X_CFLAGS -I/usr/include/X11R5"
362 X_LIBS="$X_LIBS -L/usr/lib/X11R5 -L/usr/lib/X11R4"
363 elif test -d /usr/include/X11R4; then
364 X_CFLAGS="$X_CFLAGS -I/usr/include/X11R4"
365 X_LIBS="$X_LIBS -L/usr/lib/X11R4"
370 AC_DEFINE(IBMRTAIX, 1)
376 if test "$GCC" = yes; then
377 CONF_CFLAGS="-fwritable-strings"
381 *-*-aix3* | *-*-bosx* )
382 AC_DEFINE(PTY_ITERATION, [for (c = 0; !c; c++)])
383 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
384 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
389 AC_DEFINE(FIRST_PTY_LETTER, 'A')
390 AC_DEFINE(LAST_PTY_LETTER, 'P')
395 AC_DEFINE(UNIPLUS, 1)
400 AC_DEFINE(FIRST_PTY_LETTER, 'z')
401 AC_DEFINE(PTY_TTY_NAME_SPRINTF,
402 [sprintf (pty_name, "/dev/ttyp%x", i);])
403 AC_DEFINE(PTY_NAME_SPRINTF,
404 [sprintf (pty_name, "/dev/pty%x", i);])
409 *-*-iris* | *-*-irix3* )
410 AC_DEFINE(PTY_ITERATION, [for (c = 0; !c; c++)])
411 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
412 AC_DEFINE(PTY_TTY_NAME_SPRINTF,
413 [sprintf (pty_name, "/dev/ttyq%d", minor(stb.st_rdev));])
421 *-*-sunos4* | *-*-solaris1* )
423 dnl| Work around a bug in the SunOS 4.x linker. Not needed if you have patches
424 dnl| 100512-02 and 100573-03 from Sun. The X FAQ says that the following is
425 dnl| "overkill," but doesn't explain what should be done instead.
427 if test "$GCC" = yes; then
429 POST_XMULIB="-dynamic"
431 PRE_XMULIB="-Bstatic"
432 POST_XMULIB="-Bdynamic"
436 *-*-sunos5* | *-*-solaris2* )
439 dnl| I'm not sure -lelf is needed, but it was in the old Imakefile.
440 dnl| The other libraries should all be found by Ac_PATH_XTRA or other
443 X_LIBS="$X_LIBS -lelf"
447 AC_DEFINE(PTY_ITERATION, [for (i = 0; ; i++)])
448 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptyp%d", i);])
449 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ttyp%d", i);])
453 *-*-dynix* | *-*-ptx* )
461 *-*-usg5-4* | *-*-sysvr4* )
465 *-*-usg* | *-*-sysv* | *-*-aix* )
470 if test "$GCC" = yes; then
471 CONF_CFLAGS="-fwritable-strings"
475 dnl| add some libs for OS X
477 AC_MSG_WARN([Apple support is experimental, please report any problems to bug-xboard@gnu.org])
478 AC_MSG_WARN([use --enable-osxapp to enable the build target and automatically adjust target directories])
479 AC_MSG_WARN([Building an OSX app currently relies on some programs such as dylib that we don't test for])
480 AC_MSG_WARN([patches welcome ;)])
481 AC_PATH_PROG(SW_VERS, sw_vers)
482 if test "x$SW_VERS" != "x"; then
483 AC_MSG_CHECKING(Mac OS X version)
484 MACOSX_VERSION=`$SW_VERS -productVersion`
485 AC_MSG_RESULT([$MACOSX_VERSION])
487 FRONTEND_LIBS="$FRONTEND_LIBS -headerpad_max_install_names "
488 if test x"$enable_OSXAPP" = x"yes" ; then
489 FRONTEND_LIBS="$FRONTEND_LIBS -lgtkmacintegration-gtk2"
491 FRONTEND_CFLAGS="$FRONTEND_CFLAGS -I/opt/local/include -L/opt/local/lib"
496 AC_SUBST(FRONTEND_CFLAGS)
497 AC_SUBST(FRONTEND_LIBS)
499 AC_SUBST(POST_XMULIB)
500 AC_SUBST(CONF_CFLAGS)
501 AC_SUBST(CONF_LDFLAGS)
503 AC_MSG_CHECKING(whether ptys or pipes should be used)
504 AC_ARG_ENABLE( [ptys],
505 [AS_HELP_STRING([--enable-ptys],[force use of pseudo-ttys with child processes])],
506 [if test "$enableval" = yes; then
509 AC_MSG_RESULT([ptys (user override)])
511 if test "$enableval" = no; then
514 AC_MSG_RESULT([pipes (user override)])
516 [if test "$USE_PTYS" = 1; then
523 AC_DEFINE_UNQUOTED(USE_PTYS, $USE_PTYS)
526 dnl | define not to build zippy as a default, so that autoheader is happy
527 AC_ARG_ENABLE( [zippy],
528 [AS_HELP_STRING([--enable-zippy],[support interfacing a chess program to ICS (default)])],
532 if test x"$enable_zippy" != x"no"; then
533 AC_DEFINE(ZIPPY, 1,[should zippy be enabled])
535 AC_DEFINE(ZIPPY, 0,[should zippy be enabled])
537 AM_CONDITIONAL([ZIPPY], [test x$enable_zippy != xno])
540 AC_ARG_ENABLE(sigint,
541 [AS_HELP_STRING([--enable-sigint],[sending SIGINT (^C) wakes up GNU Chess (default)])],
542 [if test "$enableval" = yes; then
543 AC_DEFINE(ATTENTION, 1)
545 enable_sigint=$enableval
548 AC_DEFINE(ATTENTION, 1)])
551 if test x"$with_Xaw3d" = x"yes" -o x"$with_Xaw" = x"yes" ; then
552 dnl | save all information for X in X_LIBS, also add the libraries themself
553 dnl | since AC_PATH_XTRA only adds the paths
554 X_LIBS="$X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS -lXmu -lX11 -lXt "
559 dnl create a string with configure options that can be passed to the
560 dnl program, good for bug reports and version printout, see output below
561 CONFIGURE_OPTIONS="prefix=$prefix; datarootdir=$datarootdir; \
562 datadir=$datadir; gamedatadir=$GAMEDATADIR; desktopdir=$DESKTOPDIR; \
563 mimedir=$MIMEDIR; iconsdir=$ICONSDIR; svgiconsdir=$SVGICONSDIR; infodir=$infodir; \
564 sysconfigdir=$sysconfigdir; update_mimedb=$enable_mimedb; NLS=$USE_NLS; \
565 GTK=$with_GTK; Xaw3d=$with_Xaw3d; Xaw=$with_Xaw; \
566 ptys=$enable_ptys; zippy=$enable_zippy; sigint=$enable_sigint"
568 AC_SUBST(CONFIGURE_OPTIONS)
570 dnl | output Makefile
571 AC_CONFIG_FILES([Makefile cmail po/Makefile.in osxapp/Info.plist])
572 AC_CONFIG_COMMANDS([test-stamp-h],[test -z "$CONFIG_HEADERS" || date > stamp-h])
573 AC_CONFIG_COMMANDS([chmod-cmail],[chmod 755 cmail])
580 echo " Configurations summary:"
582 echo " prefix: $prefix "
583 echo " datarootdir: $datarootdir "
584 echo " datadir: $datadir "
585 echo " gamedatadir: $GAMEDATADIR "
586 echo " desktopdir: $DESKTOPDIR "
587 echo " mimedir: $MIMEDIR "
588 echo " iconsdir: $ICONSDIR "
589 echo " svgiconsdir: $SVGICONSDIR "
590 echo " infodir: $infodir (info files will go here)"
591 echo " sysconfdir: $sysconfdir (xboard.conf will go here)"
593 echo " update mimedb: $enable_mimedb"
595 echo " NLS support: $USE_NLS"
597 echo " GTK: $with_GTK"
598 echo " Xaw3d: $with_Xaw3d"
599 echo " Xaw: $with_Xaw"
601 echo " ptys: $enable_ptys"
602 echo " zippy: $enable_zippy"
603 echo " sigint: $enable_sigint"