1 dnl Process this file with autoconf to produce a configure script.
2 dnl Author: Michael Patra <micky@marie.physik.tu-berlin.de>
3 dnl <patra@itp1.physik.tu-berlin.de>
4 AC_REVISION([configure.in 1.00])
5 AC_INIT(controls/edit.c)
6 AC_CONFIG_HEADER(include/config.h)
7 AC_CONFIG_AUX_DIR(tools)
9 # We want these before the checks, so the checks can modify their values.
11 test -z "$PROGEXT" && PROGEXT="" AC_SUBST(PROGEXT)
13 dnl **** Command-line arguments ****
18 ALT_LINK="-L\$(TOPOBJDIR) -lwine"
19 TRACE_MSGS=yes # the TRACE() macro
20 DEBUG_MSGS=yes # the TRACE(), WARN(), and FIXME() macros.
22 AC_ARG_ENABLE(emulator,
23 [ --disable-emulator build only the Wine library, not the emulator],
24 [if test "$enableval" = "no"; then MAIN_TARGET="lib"; fi])
27 [ --enable-dll build the Wine library as a DLL],
28 [if test "$enableval" = "no"; then : ; else LIB_TARGET="libwine.so.1.0"; fi])
31 [ --disable-lib build the Wine without building libwine.a],
32 [if test "$enableval" = "no"; then ALT_LINK="\$(LIBOBJS) \$(X11OBJS)"; LIB_TARGET=""; fi])
35 dnl [ --enable-ipc use inter-process communication for DDE],
36 dnl [if test "$enableval" = "no"; then : ; else OPTIONS="-DCONFIG_IPC"; fi])
39 [ --disable-debug compile out all debugging messages],
40 [if test "$enableval" = "no"; then DEBUG_MSGS="no"; fi])
43 [ --disable-trace compile out TRACE messages],
44 [if test "$enableval" = "no"; then TRACE_MSGS="no"; fi])
46 AC_ARG_WITH(reentrant-x,
47 [ --without-reentrant-x compile for use with non-reentrant X libraries])
54 if test "$DEBUG_MSGS" = "no"
56 AC_DEFINE(NO_DEBUG_MSGS)
57 AC_DEFINE(NO_TRACE_MSGS)
59 if test "$TRACE_MSGS" = "no"
61 AC_DEFINE(NO_TRACE_MSGS)
65 dnl **** Check for some programs ****
76 AC_CHECK_PROG(C2MAN,c2man,c2man,true)
78 dnl **** Check for some libraries ****
80 dnl Check for -li386 for NetBSD and OpenBSD
81 AC_CHECK_LIB(i386,i386_set_ldt)
82 dnl Check for -lossaudio for NetBSD
83 AC_CHECK_LIB(ossaudio,_oss_ioctl)
84 dnl Check for -lw for Solaris
85 AC_CHECK_LIB(w,iswalnum)
86 dnl Check for -lnsl for Solaris
87 AC_CHECK_FUNCS(gethostbyname,,AC_CHECK_LIB(nsl,gethostbyname))
88 dnl Check for -lsocket for Solaris
89 AC_CHECK_FUNCS(connect,,AC_CHECK_LIB(socket,connect))
90 dnl Check for -lxpg4 for FreeBSD
91 AC_CHECK_LIB(xpg4,setrunelocale)
93 AC_CHECK_HEADERS(dlfcn.h,
94 AC_CHECK_FUNCS(dlopen,
95 AC_DEFINE(HAVE_DL_API),
96 AC_CHECK_LIB(dl,dlopen,
97 AC_DEFINE(HAVE_DL_API)
103 if test "$have_x" = "yes"
106 ac_save_CPPFLAGS="$CPPFLAGS"
107 CPPFLAGS="$CPPFLAGS $X_CFLAGS"
110 AC_CHECK_HEADERS(X11/xpm.h)
111 if test "$ac_cv_header_X11_xpm_h" = "yes"
113 AC_CHECK_LIB(Xpm,XpmCreatePixmapFromData,AC_DEFINE(HAVE_LIBXXPM) X_PRE_LIBS="$X_PRE_LIBS -lXpm",,$X_LIBS -lXext -lX11)
116 dnl Check for X Shm extension
117 AC_CHECK_HEADERS(X11/Xlib.h X11/extensions/XShm.h)
118 if test "$ac_cv_header_X11_Xlib_h" = "yes" -a "$ac_cv_header_X11_extensions_XShm_h" = "yes"
120 AC_CHECK_LIB(Xext,XShmQueryExtension,AC_DEFINE(HAVE_LIBXXSHM),,$X_LIBS -lXext -lX11)
122 dnl Check for XFree86 DGA extension
123 AC_CHECK_HEADERS(X11/Xlib.h X11/extensions/xf86dga.h)
124 if test "$ac_cv_header_X11_Xlib_h" = "yes" -a "$ac_cv_header_X11_extensions_xf86dga_h" = "yes"
126 AC_CHECK_LIB(Xxf86dga,XF86DGAQueryExtension,AC_DEFINE(HAVE_LIBXXF86DGA) X_PRE_LIBS="$X_PRE_LIBS -lXxf86dga",,$X_LIBS -lXext -lX11)
129 dnl Check for XFree86 VMODE extension
130 AC_CHECK_HEADERS(X11/Xlib.h X11/extensions/xf86vmode.h)
131 if test "$ac_cv_header_X11_Xlib_h" = "yes" -a "$ac_cv_header_X11_extensions_xf86vmode_h" = "yes"
133 AC_CHECK_LIB(Xxf86vm,XF86VidModeQueryExtension,AC_DEFINE(HAVE_LIBXXF86VM) X_PRE_LIBS="$X_PRE_LIBS -lXxf86vm",,$X_LIBS -lXext -lX11)
136 dnl Check for the presence of Mesa
137 AC_CHECK_HEADERS(GL/gl.h GL/osmesa.h)
138 if test "$ac_cv_header_GL_gl_h" = "yes" -a "$ac_cv_header_GL_osmesa_h" = "yes"
140 dnl Check for some problems due to old Mesa versions
141 AC_CACHE_CHECK("for up-to-date Mesa version", wine_cv_mesa_version_OK,
143 [#include <GL/gl.h>],
144 [GLenum test = GL_UNSIGNED_SHORT_5_6_5;],
145 [wine_cv_mesa_version_OK="yes"],
146 [wine_cv_mesa_version_OK="no"]
150 if test "$wine_cv_mesa_version_OK" = "yes"
152 dnl Check for the presense of the library
153 AC_CHECK_LIB(MesaGL,OSMesaCreateContext,AC_DEFINE(HAVE_LIBMESAGL) X_PRE_LIBS="$X_PRE_LIBS -lMesaGL",,$X_LIBS -lXext -lX11 -lm)
157 CPPFLAGS="$ac_save_CPPFLAGS"
164 dnl **** Check which curses lib to use ***
165 AC_CHECK_HEADERS(ncurses.h)
166 if test "$ac_cv_header_ncurses_h" = "yes"
168 AC_CHECK_LIB(ncurses,waddch)
170 if test "$ac_cv_lib_ncurses_waddch" = "yes"
172 AC_CHECK_LIB(ncurses,resizeterm,AC_DEFINE(HAVE_RESIZETERM))
173 AC_CHECK_LIB(ncurses,getbkgd,AC_DEFINE(HAVE_GETBKGD))
175 AC_CHECK_HEADERS(curses.h)
176 if test "$ac_cv_header_curses_h" = "yes"
178 AC_CHECK_LIB(curses,waddch)
179 AC_CHECK_LIB(curses,resizeterm,AC_DEFINE(HAVE_RESIZETERM))
180 AC_CHECK_LIB(curses,getbkgd,AC_DEFINE(HAVE_GETBKGD))
184 dnl **** Check for IPX (currently Linux only) ****
185 AC_CACHE_CHECK("for GNU style IPX support", ac_cv_c_ipx_gnu,
187 [#include <sys/socket.h>
188 #include <netipx/ipx.h>],
189 [((struct sockaddr_ipx *)0)->sipx_family == AF_IPX],
190 [AC_DEFINE(HAVE_IPX_GNU)
191 ac_cv_c_ipx_gnu="yes"],
192 [ac_cv_c_ipx_gnu="no"])
195 if test "$ac_cv_c_ipx_gnu" = "no"
197 AC_CACHE_CHECK("for linux style IPX support", ac_cv_c_ipx_linux,
199 [#include <sys/socket.h>
200 #include <asm/types.h>
201 #include <linux/ipx.h>],
202 [((struct sockaddr_ipx *)0)->sipx_family == AF_IPX],
203 [AC_DEFINE(HAVE_IPX_LINUX)
204 ac_cv_c_ipx_linux="yes"],
205 [ac_cv_c_ipx_linux="no"])
209 dnl **** Check for Open Sound System ****
210 AC_CHECK_HEADERS(sys/soundcard.h machine/soundcard.h soundcard.h, break)
212 AC_CACHE_CHECK("for Open Sound System",
213 ac_cv_c_opensoundsystem,
215 #if defined(HAVE_SYS_SOUNDCARD_H)
216 #include <sys/soundcard.h>
217 #elif defined(HAVE_MACHINE_SOUNDCARD_H)
218 #include <machine/soundcard.h>
219 #elif defined(HAVE_SOUNDCARD_H)
220 #include <soundcard.h>
224 /* check for one of the Open Sound System specific SNDCTL_ defines */
225 #if !defined(SNDCTL_DSP_STEREO)
226 #error No open sound system
228 ],ac_cv_c_opensoundsystem="yes",ac_cv_c_opensoundsystem="no"))
230 if test "$ac_cv_c_opensoundsystem" = "yes"
235 dnl **** If ln -s doesn't work, use cp instead ****
236 if test "$ac_cv_prog_LN_S" = "ln -s"; then : ; else LN_S=cp ; fi
238 dnl **** Check for gcc strength-reduce bug ****
240 if test "x${GCC}" = "xyes"
242 CFLAGS="$CFLAGS -Wall"
243 AC_CACHE_CHECK( "for gcc strength-reduce bug", ac_cv_c_gcc_strength_bug,
246 static int Array[[3]];
249 for(i=0; i<B; i++) Array[[i]] = i - 3;
250 exit( Array[[1]] != -2 );
252 ac_cv_c_gcc_strength_bug="no",
253 ac_cv_c_gcc_strength_bug="yes",
254 ac_cv_c_gcc_strength_bug="yes") )
255 if test "$ac_cv_c_gcc_strength_bug" = "yes"
257 CFLAGS="$CFLAGS -fno-strength-reduce"
261 dnl **** Check for underscore on external symbols ****
263 AC_CACHE_CHECK("whether external symbols need an underscore prefix",
264 ac_cv_c_extern_prefix,
266 LIBS="conftest_asm.s $LIBS"
267 cat > conftest_asm.s <<EOF
272 AC_TRY_LINK([extern int ac_test;],[if (ac_test) return 1],
273 ac_cv_c_extern_prefix="yes",ac_cv_c_extern_prefix="no")
275 if test "$ac_cv_c_extern_prefix" = "yes"
277 AC_DEFINE(NEED_UNDERSCORE_PREFIX)
280 dnl **** Check for .string in assembler ****
282 AC_CACHE_CHECK("whether assembler accepts .string",
285 LIBS="conftest_asm.s $LIBS"
286 cat > conftest_asm.s <<EOF
289 AC_TRY_LINK(,,ac_cv_c_asm_string="yes",ac_cv_c_asm_string="no")
291 if test "$ac_cv_c_asm_string" = "yes"
293 AC_DEFINE(HAVE_ASM_STRING)
296 dnl **** Check for working dll ****
300 if test "$LIB_TARGET" = "libwine.so.1.0"
302 AC_CACHE_CHECK("whether we can build a Linux dll",
304 [saved_cflags=$CFLAGS
305 CFLAGS="$CFLAGS -fPIC -shared -Wl,-soname,conftest.so.1.0"
306 AC_TRY_LINK(,[return 1],ac_cv_c_dll_linux="yes",ac_cv_c_dll_linux="no")
309 if test "$ac_cv_c_dll_linux" = "yes"
312 LDSHARED="\$(CC) -shared -Wl,-soname,libwine.so"
314 AC_CACHE_CHECK("whether we can build a NetBSD dll",
316 [saved_cflags=$CFLAGS
317 CFLAGS="$CFLAGS -fPIC -Bshareable -Bforcearchive"
318 AC_TRY_LINK(,[return 1],ac_cv_c_dll_netbsd="yes",ac_cv_c_dll_netbsd="no")
321 if test "$ac_cv_c_dll_netbsd" = "yes"
324 LDSHARED="ld -Bshareable -Bforcearchive"
327 if test "$ac_cv_c_dll_linux" = "no" -a "$ac_cv_c_dll_netbsd" = "no"
329 LIB_TARGET="libwine.a"
335 dnl **** Check for reentrant libc ****
337 dnl For cross-compiling we blindly assume that libc is reentrant. This is
338 dnl ok since non-reentrant libc is quite rare (mostly old libc5 versions).
340 wine_cv_libc_reentrant=no
342 dnl Linux style errno location
344 AC_CACHE_CHECK("for reentrant libc: __errno_location", wine_cv_libc_r__errno_location,
345 [AC_TRY_RUN([int myerrno = 0;
347 int *__errno_location(){return &myerrno;}
348 main(){connect(0,buf,255); exit(!myerrno);}],
349 wine_cv_libc_r__errno_location=yes, wine_cv_libc_r__errno_location=no,
350 wine_cv_libc_r__errno_location=yes )
352 if test "$wine_cv_libc_r__errno_location" = "yes"
354 AC_DEFINE(HAVE__ERRNO_LOCATION)
355 wine_cv_libc_reentrant=__errno_location
358 dnl FreeBSD style errno location
360 AC_CACHE_CHECK("for reentrant libc: __error", wine_cv_libc_r__error,
361 [AC_TRY_RUN([int myerrno = 0;
363 int *__error(){return &myerrno;}
364 main(){connect(0,buf,255); exit(!myerrno);}],
365 wine_cv_libc_r__error=yes, wine_cv_libc_r__error=no,
366 wine_cv_libc_r__error=yes )
368 if test "$wine_cv_libc_r__error" = "yes"
370 AC_DEFINE(HAVE__ERROR)
371 wine_cv_libc_reentrant=__error
374 dnl Solaris style errno location
376 AC_CACHE_CHECK("for reentrant libc: ___errno", wine_cv_libc_r___errno,
377 [AC_TRY_RUN([int myerrno = 0;
379 int *___errno(){return &myerrno;}
380 main(){connect(0,buf,255); exit(!myerrno);}],
381 wine_cv_libc_r___errno=yes, wine_cv_libc_r___errno=no,
382 wine_cv_libc_r___errno=yes )
384 if test "$wine_cv_libc_r___errno" = "yes"
386 AC_DEFINE(HAVE___ERRNO)
387 wine_cv_libc_reentrant=___errno
389 if test "$wine_cv_libc_reentrant" = "no"
391 AC_DEFINE(NO_REENTRANT_LIBC)
394 dnl **** Check for reentrant X libraries ****
396 dnl This may fail to determine whether X libraries are reentrant if
397 dnl AC_PATH_XTRA does not set x_libraries. In this case manual configuration
398 dnl is possible with the --without-reentrant-x option.
400 if test "$have_x" = "yes" -a "$wine_cv_libc_reentrant" != "no"
402 AC_CACHE_CHECK( "for reentrant X libraries", wine_cv_x_reentrant,
403 [ if test "x$with_reentrant_x" = "xno"
405 wine_cv_x_reentrant=no
408 for dir in "$x_libraries" /usr/lib /usr/local/lib /lib; do
409 if test -r $dir/libX11.so; then
410 libX11_check="-D $dir/libX11.so"
413 if test -r $dir/libX11.a; then
414 libX11_check="$dir/libX11.a"
418 if test "$libX11_check" != "none"; then
419 if nm $libX11_check | grep $wine_cv_libc_reentrant >/dev/null 2>&1
421 wine_cv_x_reentrant=yes
423 wine_cv_x_reentrant=no
426 wine_cv_x_reentrant=unknown
430 wine_cv_x_reentrant=no
432 if test "$wine_cv_x_reentrant" = "no"
434 AC_DEFINE(NO_REENTRANT_X11)
437 dnl **** Check for functions ****
457 dnl **** Check for header files ****
491 dnl **** Check for types ****
495 AC_CHECK_SIZEOF(long long,0)
497 dnl **** statfs checks ****
499 if test "$ac_cv_header_sys_vfs_h" = "yes"
501 AC_CACHE_CHECK( "whether sys/vfs.h defines statfs",
502 wine_cv_sys_vfs_has_statfs,
504 #include <sys/types.h>
505 #ifdef HAVE_SYS_PARAM_H
506 # include <sys/param.h>
512 memset(&stfs,0,sizeof(stfs));
513 ],wine_cv_sys_vfs_has_statfs=yes,wine_cv_sys_vfs_has_statfs=no
516 if test "$wine_cv_sys_vfs_has_statfs" = "yes"
518 AC_DEFINE(STATFS_DEFINED_BY_SYS_VFS)
522 if test "$ac_cv_header_sys_statfs_h" = "yes"
524 AC_CACHE_CHECK( "whether sys/statfs.h defines statfs",
525 wine_cv_sys_statfs_has_statfs,
527 #include <sys/types.h>
528 #ifdef HAVE_SYS_PARAM_H
529 # include <sys/param.h>
531 #include <sys/statfs.h>
534 ],wine_cv_sys_statfs_has_statfs=yes,wine_cv_sys_statfs_has_statfs=no
537 if test "$wine_cv_sys_statfs_has_statfs" = "yes"
539 AC_DEFINE(STATFS_DEFINED_BY_SYS_STATFS)
543 if test "$ac_cv_header_sys_mount_h" = "yes"
545 AC_CACHE_CHECK( "whether sys/mount.h defines statfs",
546 wine_cv_sys_mount_has_statfs,
548 #include <sys/types.h>
549 #ifdef HAVE_SYS_PARAM_H
550 # include <sys/param.h>
552 #include <sys/mount.h>
555 ],wine_cv_sys_mount_has_statfs=yes,wine_cv_sys_mount_has_statfs=no
558 if test "$wine_cv_sys_mount_has_statfs" = "yes"
560 AC_DEFINE(STATFS_DEFINED_BY_SYS_MOUNT)
564 dnl **** FIXME: what about mixed cases, where we need two of them? ***
566 AC_CACHE_CHECK( "for statfs.f_bfree", wine_cv_statfs_bfree,
567 [ if test "x$statfs_bfree" = "xno"
569 wine_cv_statfs_bfree=no
572 #include <sys/types.h>
573 #ifdef HAVE_SYS_PARAM_H
574 # include <sys/param.h>
576 #ifdef STATFS_DEFINED_BY_SYS_MOUNT
577 # include <sys/mount.h>
579 # ifdef STATFS_DEFINED_BY_SYS_VFS
580 # include <sys/vfs.h>
582 # ifdef STATFS_DEFINED_BY_SYS_STATFS
583 # include <sys/statfs.h>
591 ],wine_cv_statfs_bfree=yes,wine_cv_statfs_bfree=no
594 if test "$wine_cv_statfs_bfree" = "yes"
596 AC_DEFINE(STATFS_HAS_BFREE)
599 AC_CACHE_CHECK( "for statfs.f_bavail", wine_cv_statfs_bavail,
600 [ if test "x$statfs_bavail" = "xno"
602 wine_cv_statfs_bavail=no
605 #include <sys/types.h>
606 #ifdef HAVE_SYS_PARAM_H
607 # include <sys/param.h>
609 #ifdef STATFS_DEFINED_BY_SYS_MOUNT
610 # include <sys/mount.h>
612 # ifdef STATFS_DEFINED_BY_SYS_VFS
613 # include <sys/vfs.h>
615 # ifdef STATFS_DEFINED_BY_SYS_STATFS
616 # include <sys/statfs.h>
624 ],wine_cv_statfs_bavail=yes,wine_cv_statfs_bavail=no
627 if test "$wine_cv_statfs_bavail" = "yes"
629 AC_DEFINE(STATFS_HAS_BAVAIL)
632 dnl *** check for working sigaltstack
633 dnl glibc 2.0x defines it, but it always fails... so it is useless for us.
635 AC_CACHE_CHECK("for working sigaltstack",
636 ac_cv_c_working_sigaltstack,
639 #include <time.h> /* <sys/time.h> ? bad magic without end */
640 #include <sys/types.h>
641 #include <sys/signal.h>
642 #ifdef HAVE_SYS_PARAM_H
643 # include <sys/param.h>
645 #ifdef HAVE_SYSCALL_H
646 # include <syscall.h>
648 # ifdef HAVE_SYS_SYSCALL_H
649 # include <sys/syscall.h>
653 unsigned char *xaltstack;
656 main(int argc,char **argv) {
657 struct sigaltstack ss;
659 xaltstack = malloc(16384);
660 ss.ss_sp = xaltstack;
663 if (sigaltstack(&ss, NULL) < 0) {
664 /* this catches the glibc case */
665 perror("sigaltstack");
666 return (1); /* aka exit(1) aka fail */
668 /* assume it works. */
672 ac_cv_c_working_sigaltstack="yes",
673 ac_cv_c_working_sigaltstack="no",
674 ac_cv_c_working_sigaltstack="no"
677 if test "$ac_cv_c_working_sigaltstack" = "yes"
679 AC_DEFINE(HAVE_WORKING_SIGALTSTACK)
683 dnl *** check for file descriptor passing with msg_accrights
685 AC_CACHE_CHECK("for msg_accrights in struct msghdr", ac_cv_c_msg_accrights,
686 AC_TRY_COMPILE([#include <sys/types.h>
687 #include <sys/socket.h>],[struct msghdr hdr; hdr.msg_accrights=0],
688 ac_cv_c_msg_accrights="yes", ac_cv_c_msg_accrights="no"))
689 if test "$ac_cv_c_msg_accrights" = "yes"
691 AC_DEFINE(HAVE_MSGHDR_ACCRIGHTS)
694 dnl $GCC is set by autoconf
696 if test "$GCC" = "yes"
698 GCC_NO_BUILTIN="-fno-builtin"
700 AC_SUBST(GCC_NO_BUILTIN)
702 dnl **** Generate output files ****
704 MAKE_RULES=Make.rules
705 AC_SUBST_FILE(MAKE_RULES)
714 dlls/advapi32/Makefile
715 dlls/avifil32/Makefile
716 dlls/comctl32/Makefile
717 dlls/commdlg/Makefile
718 dlls/imagehlp/Makefile
720 dlls/msacm32/Makefile
723 dlls/rasapi32/Makefile
724 dlls/shell32/Makefile
727 dlls/version/Makefile
728 dlls/winaspi/Makefile
729 dlls/wnaspi32/Makefile
730 documentation/Makefile
733 graphics/metafiledrv/Makefile
734 graphics/psdrv/Makefile
735 graphics/ttydrv/Makefile
736 graphics/win16drv/Makefile
737 graphics/x11drv/Makefile
754 programs/clock/Makefile
755 programs/cmdlgtst/Makefile
756 programs/control/Makefile
757 programs/avitools/Makefile
758 programs/notepad/Makefile
759 programs/progman/Makefile
760 programs/regtest/Makefile
761 programs/regapi/Makefile
762 programs/view/Makefile
763 programs/winhelp/Makefile
764 programs/winver/Makefile
775 windows/ttydrv/Makefile
776 windows/x11drv/Makefile ])
778 if test "$have_x" = "no"
781 echo "*** Warning: X development files not found. Wine will be built without"
782 echo "*** X support, which currently does not work, and would probably not be"
783 echo "*** what you want anyway. You will need to install devel packages of"
784 echo "*** Xlib/Xfree86 and Xpm at the very least."
785 elif test "$ac_cv_lib_Xpm_XpmCreatePixmapFromData" = "no"
788 echo "*** Warning: Xpm development files not found. Wine will be built without"
789 echo "*** Xpm support, which currently does not work. You will need to install"
790 echo "*** devel packages of Xpm."
793 if test "$ac_cv_lib_ncurses_resizeterm" = "no" -a "$ac_cv_lib_ncurses_waddch" = "yes"
796 echo "*** Warning: resizeterm not found in ncurses. Wine will be built without"
797 echo "*** terminal resize support. Consider upgrading ncurses."
800 if test "$wine_cv_libc_reentrant" = "no"
803 echo "*** Warning: non-reentrant libc detected. Wine will be build without"
804 echo "*** thread support. Consider upgrading libc to a more recent"
805 echo "*** reentrant version of libc."
808 if test "$wine_cv_mesa_version_OK" = "no"
811 echo "*** Warning: old Mesa headers detected. Wine will be built without Direct3D"
812 echo "*** support. Consider upgrading your Mesa libraries (http://www.mesa3d.org/)"
816 echo "Configure finished. Do 'make depend && make' to compile Wine."
820 dnl comment-start: "dnl "
822 dnl comment-start-skip: "\\bdnl\\b\\s *"
823 dnl compile-command: "autoconf"