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dnl Process this file with autoconf to produce a configure script.
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dnl Copyright (C) 1998 John Harper <john@dcs.warwick.ac.uk>
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dnl $Id: configure.in,v 1.135 2001/10/29 06:18:43 jsh Exp $
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dnl This file is part of librep.
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dnl librep is free software; you can redistribute it and/or modify it
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dnl under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 2, or (at your option)
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dnl any later version.
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dnl librep is distributed in the hope that it will be useful, but
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dnl WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl You should have received a copy of the GNU General Public License
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dnl along with librep; see the file COPYING. If not, write to
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dnl the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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AC_REVISION($Revision: 1.135 $)
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AC_INIT(src/rep_subrs.h)
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AC_CONFIG_HEADER(config.h src/rep_config.h)
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dnl Release versioning info
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dnl libtool versioning info: `CURRENT:REVISION:AGE'. CURRENT is the
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dnl current interface id, REVISION is the version number of this
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dnl implementation, AGE defines the first interface id also supported
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dnl (i.e. all interfaces between CURRENT-AGE and CURRENT are supported)
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libversion="$libcurrent:$librevision:$libage"
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makefile_template="Makefile.in:Makedefs.in"
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output_files="src/Makefile:Makedefs.in:src/Makefile.in\
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lisp/Makefile:Makedefs.in:lisp/Makefile.in\
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Makefile:Makedefs.in:Makefile.in\
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man/Makefile:Makedefs.in:man/Makefile.in\
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intl/Makefile librep.spec"
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dnl Find the system type
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dnl Remove trailing slash in $prefix if necessary
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prefix=`echo ${prefix} | sed -e 's/^\(.*\)\/$/\1/'`
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repdir='${datadir}/rep'
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replispdir='${repdir}/${version}/lisp'
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repexecdir='${libexecdir}/rep/${version}/${host_type}'
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repcommonexecdir='${libexecdir}/rep/${host_type}'
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repdocfile='${repexecdir}/DOC'
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emacssitelispdir='${datadir}/emacs/site-lisp'
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AC_SUBST(EXTRA_LIBOBJS)
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dnl Checks for programs.
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AC_PROG_GCC_TRADITIONAL
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dnl Abort if shared libraries aren't enabled
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if test "${enable_shared}" != "yes"; then
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AC_MSG_ERROR([Need shared libraries enabled])
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dnl Checks for libraries.
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AC_CHECK_FUNC(gethostent, , AC_CHECK_LIB(nsl, gethostent))
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AC_CHECK_FUNC(setsockopt, , AC_CHECK_LIB(socket, setsockopt))
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AC_CHECK_FUNC(dlopen, , AC_CHECK_LIB(dl, dlopen))
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dnl Checks for header files.
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AC_CHECK_HEADERS(fcntl.h sys/ioctl.h sys/time.h sys/utsname.h unistd.h siginfo.h memory.h stropts.h termios.h string.h limits.h argz.h locale.h nl_types.h malloc.h sys/param.h)
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dnl Check for GNU MP library and header files
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[ --without-gmp Don't use GMP for bignum/rational numbers],
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if test "$with_gmp" != "no"; then
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AC_ARG_WITH(gmp-prefix, [ --with-gmp-prefix=DIR path to GMP],
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[if test "$withval" != "no"; then
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CPPFLAGS="${CPPFLAGS} -I$withval/include"
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LDFLAGS="${LDFLAGS} -L$withval/lib"
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dnl debian brain-damage
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[if test -d /usr/include/gmp2; then
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CPPFLAGS="${CPPFLAGS} -I/usr/include/gmp2"
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AC_CHECK_HEADER(gmp.h,
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[AC_CHECK_LIB(gmp, mpz_init,
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[GMP_LIBS="-lgmp -lm"; found_gmp=yes],
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[AC_CHECK_LIB(gmp, __gmpz_init,
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[GMP_LIBS="-lgmp -lm"; found_gmp=yes])])])
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if test "$found_gmp" = "yes"; then
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LIBS="$LIBS $GMP_LIBS"
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AC_CHECK_FUNC(__gmp_randinit, AC_DEFINE(HAVE_GMP_RANDINIT))
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elif test "$with_gmp" != "no"; then
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AC_MSG_ERROR([Can't find GMP (--without-gmp for cut-down non-GMP build)])
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dnl Check for GNU DBM library and header files
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AC_ARG_WITH(gdbm-prefix,
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[ --with-gdbm-prefix=DIR path to GDBM],[
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if test "$withval" != "no"; then
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CPPFLAGS="${CPPFLAGS} -I$withval/include"
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LDFLAGS="${LDFLAGS} -L$withval/lib"
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AC_CHECK_HEADER(gdbm.h,
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AC_CHECK_LIB(gdbm, gdbm_open, GDBM_LIBS="-lgdbm",
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AC_MSG_ERROR(Cannot find GDBM library)),
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AC_MSG_ERROR(Cannot find GDBM header))
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dnl Check for Doug Lea's malloc in libc, otherwise compile dlmalloc.c
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AC_CHECK_FUNC(malloc_get_state, , doug_lea_malloc=no)
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AC_CHECK_FUNC(malloc_set_state, , doug_lea_malloc=no)
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if test "$doug_lea_malloc" = "no"; then
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dnl dlmalloc is broken on Tru64
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AC_DEFINE(LIBC_MALLOC)
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EXTRA_LIBOBJS="${EXTRA_LIBOBJS} dlmalloc.o"
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AC_DEFINE(DOUG_LEA_MALLOC)
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AC_DEFINE(DOUG_LEA_MALLOC)
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AC_DEFINE(LIBC_MALLOC)
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dnl Check for readline
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AC_ARG_WITH(readline,
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[ --with-readline support fancy command input editing
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--without-readline Don't use readline], [], [with_readline=maybe])
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if test "$with_readline" != "no"; then
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AC_ARG_WITH(readline-prefix,
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[ --with-readline-prefix=DIR path to readline],
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[ if test "$withval" != "no" -a "$withval" != "yes"; then
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# Save in case test with directory specified fails
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_cppflags=${CPPFLAGS}
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CPPFLAGS="${CPPFLAGS} -I$withval/include"
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LDFLAGS="${LDFLAGS} -L$withval/lib"
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dnl check for terminal library
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dnl this is a very cool solution from octave's configure.in
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for termlib in ncurses curses termcap terminfo termlib; do
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AC_CHECK_LIB(${termlib}, tputs, [tcap="$tcap -l$termlib"])
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AC_CHECK_HEADER(readline/readline.h,
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AC_CHECK_LIB(readline, readline,[
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READLINE_LIBS="-lreadline $tcap"
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AC_DEFINE(HAVE_LIBREADLINE)], , $tcap))
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if test -z "$READLINE_LIBS"; then
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if test "$with_readline_prefix" = "yes"; then
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AC_MSG_ERROR([Can't find readline libraries])
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CPPFLAGS=${_cppflags}
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AC_SUBST(READLINE_LIBS)
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dnl Check for dynamic loading
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AC_CHECK_HEADER(dlfcn.h, [AC_DEFINE(HAVE_DLFCN_H)])
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AC_CHECK_HEADER(dl.h, [AC_DEFINE(HAVE_DL_H)])
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AC_CHECK_HEADER(sys/dl.h, [AC_DEFINE(HAVE_SYS_DL_H)])
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AC_CHECK_FUNC(dlopen, [AC_DEFINE(HAVE_DLOPEN) dl_ok=dl],
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AC_CHECK_LIB(dl, dlopen, [AC_DEFINE(HAVE_DLOPEN) dl_ok=dl]))
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AC_CHECK_FUNC(shl_load, [AC_DEFINE(HAVE_SHL_LOAD) dl_ok=shl],
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AC_CHECK_LIB(dld, shl_load, [AC_DEFINE(HAVE_DLOPEN) dl_ok=shl]))
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if test $dl_ok = dl; then
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AC_MSG_CHECKING([for preceding underscore in symbols])
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dnl copied from glib configure.in
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AC_TRY_RUN([#ifdef HAVE_DLFCN_H
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int glib_underscore_test (void) { return 42; }
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void *f1 = (void*)0, *f2 = (void*)0, *handle;
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handle = dlopen ((void*)0, 0);
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f1 = dlsym (handle, "glib_underscore_test");
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f2 = dlsym (handle, "_glib_underscore_test");
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} return (!f2 || f1);
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[AC_DEFINE(DLSYM_NEED_USCORE)
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dnl RTLD_GLOBAL is broken for Tru64 UNIX V5.0 and V5.0A, such that
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dnl xh = dlopen("libx.so", RTLD_GLOBAL|RTLD_LAZY); /* provides func */
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dnl yh = dlopen("liby.so", RTLD_GLOBAL|RTLD_LAZY); /* provides func */
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dnl yf = dlsym(yh, "func"); /* Error: returns func from libx.so */
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dnl It's hard to test for this apart from the version string, so
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dnl that's what we use.
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AC_MSG_CHECKING([for broken RTLD_GLOBAL on Tru64])
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if /usr/sbin/sizer -v | grep -E -q -e 'UNIX [[TVX]]5\.0A?(-[[[:digit:]]]+)? '; then
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AC_DEFINE(BROKEN_RTLD_GLOBAL)
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if test $dl_ok != no; then
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AC_DEFINE(HAVE_DYNAMIC_LOADING)
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AC_MSG_ERROR([can't figure out how to do dynamic loading])
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dnl Checks for typedefs, structures, and compiler characteristics.
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dnl Checks for library functions.
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AC_CHECK_FUNCS(getcwd gethostname select socket strcspn strerror strstr stpcpy strtol psignal strsignal snprintf grantpt lrand48 getpagesize setitimer dladdr dlerror munmap putenv setenv setlocale strchr strcasecmp strncasecmp strdup __argz_count __argz_stringify __argz_next siginterrupt gettimeofday strtoll strtoq)
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AC_REPLACE_FUNCS(realpath)
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dnl check for crypt () function
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AC_CHECK_FUNC(crypt, [AC_DEFINE(HAVE_CRYPT)],
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AC_CHECK_LIB(crypt, crypt, [AC_DEFINE(HAVE_CRYPT)
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LIBS="$LIBS -lcrypt"]))
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dnl How do we get dependency lines in the Makefile?
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if test "x${GCC}" = "xyes"; then
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MAKEDEP='/usr/ccs/lib/cpp -M'
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dnl disable dependences?
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dnl If using GCC and it doesn't look as though the cflags have been
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dnl set explicitly, add some warning options.
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if test "x${GCC}" = "xyes" -a "x$CFLAGS" = "x-g -O2"; then
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CFLAGS="${CFLAGS} -Wall -Wpointer-arith -Wmissing-prototypes"
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dnl Turn off implicit-int warnings since the X11 includes
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dnl on Solaris generate a lot of these
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CFLAGS="${CFLAGS} -Wno-implicit-int"
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AC_ARG_WITH(extra-cflags,
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[ --with-extra-cflags=FLAGS Extra flags to pass to C compiler],
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CFLAGS="${CFLAGS} $with_extra_cflags")
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dnl Does <unistd.h> declare char **environ?
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AC_CACHE_CHECK([whether unistd.h declares environ], jade_cv_decl_environ,
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AC_TRY_COMPILE([#include <unistd.h>], [char **foo = environ;],
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[jade_cv_decl_environ=yes],
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[jade_cv_decl_environ=no]))
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if test ${jade_cv_decl_environ} = no; then
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AC_DEFINE(ENVIRON_UNDECLARED)
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dnl Are ptys available, and if so, how?
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AC_MSG_CHECKING([whether /dev/ptmx exists])
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if test -r /dev/ptmx; then
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AC_DEFINE(HAVE_DEV_PTMX)
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dnl Look for old-style /dev/ptyXN devices
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AC_CACHE_CHECK([whether /dev/ptyXN devices exist], jade_cv_sys_dev_pty,
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jade_cv_sys_dev_pty=no
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for c in p q r s t u v w x y z a b c d e f g h i j k l m n o; do
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if test -r "/dev/pty${c}0"; then
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jade_cv_sys_dev_pty=${c}
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if test ${jade_cv_sys_dev_pty} != no; then
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AC_DEFINE_UNQUOTED(FIRST_PTY_LETTER, '${jade_cv_sys_dev_pty}')
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dnl Try to find the aclocal directory for installation
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AC_ARG_WITH(aclocaldir,
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[ --with-aclocaldir=DIR Directory in which to install autoconf macros],
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AC_MSG_CHECKING([for aclocal directory])
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if test "$aclocaldir" = none; then
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aclocaldir="`aclocal --print-ac-dir 2>/dev/null`"
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if test "x${aclocaldir}" = "x"; then
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aclocaldir='${datadir}/aclocal'
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AC_MSG_RESULT([${aclocaldir}])
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AC_ARG_ENABLE(continuations,
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[ --disable-continuations Don't include support for continuations
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[if test "$enableval" != "no"; then AC_DEFINE(WITH_CONTINUATIONS) fi],
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[AC_DEFINE(WITH_CONTINUATIONS)])
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AC_ARG_ENABLE(dballoc,
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[ --enable-dballoc Trace all memory allocations],
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[if test "$enableval" != "no"; then AC_DEFINE(DEBUG_SYS_ALLOC) fi])
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AC_ARG_ENABLE(dbsyms,
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[ --disable-dbsyms When writing debug output, don't translate
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addresses to symbol names],
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[if test "$enableval" != "no"; then AC_DEFINE(DB_RESOLVE_SYMBOLS) fi],
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[AC_DEFINE(DB_RESOLVE_SYMBOLS)])
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[ --enable-gprof Build for gprof (needs --enable-static)],
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[CFLAGS="${CFLAGS} -pg"; LDFLAGS="${LDFLAGS} -pg"])
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AC_ARG_ENABLE(full-name-terminator,
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[ --enable-full-name-terminator=C Full name in gecos field of passwd
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file is terminated by first C character],
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[if test "$enableval" != "no"; then
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enableval="'$enableval'"
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AC_DEFINE_UNQUOTED(FULL_NAME_TERMINATOR, $enableval)
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dnl Assumption for now
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AC_DEFINE(rep_HAVE_UNIX, 1)
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dnl We need to find an integer type that's big enough to store any pointer
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AC_MSG_CHECKING([for data type to store Lisp values])
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AC_ARG_WITH(value-type,
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[ --with-value-type=TYPE Implicitly signed integer type, at least as wide
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as a pointer. [TYPE=<probed>] (see README)], [],
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[with_value_type="undef"])
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if test "${with_value_type}" = "undef"; then
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AC_TRY_RUN([main () { exit (!(sizeof (int) >= sizeof (void *)));}],
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[with_value_type=int])
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if test "${with_value_type}" = "undef"; then
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AC_TRY_RUN([main () { exit (!(sizeof (long int) >= sizeof (void *)));}],
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[with_value_type="long int"])
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if test "${with_value_type}" = "undef"; then
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AC_TRY_RUN([main () { exit (!(sizeof (long long int) >= sizeof (void *)));}],
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[with_value_type="long long int"])
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if test "${with_value_type}" = "undef"; then
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AC_MSG_ERROR([can't find Lisp value type; set --with-value-type (see README)])
426
AC_MSG_RESULT([${with_value_type}])
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AC_DEFINE_UNQUOTED(rep_PTR_SIZED_INT, ${with_value_type})
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dnl Find the size (in bits) of the chosen value type
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AC_MSG_CHECKING([for size of Lisp value type])
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AC_ARG_WITH(value-sizeof,
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[ --with-value-sizeof=N Size (in bytes) of value type. [N=<probed>]], [],
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[with_value_sizeof="undef"])
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if test "${with_value_sizeof}" = "undef"; then
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dnl the following fragment is inspired by AC_CHECK_SIZEOF
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AC_TRY_RUN([#include <stdio.h>
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FILE *f = fopen ("conftestval", "w");
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fprintf (f, "%d\n", sizeof (${with_value_type}));
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[ with_value_sizeof=`cat conftestval`; rm -f conftestval])
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AC_MSG_RESULT([${with_value_sizeof} bytes])
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AC_DEFINE_UNQUOTED(rep_PTR_SIZED_INT_SIZEOF, ${with_value_sizeof})
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dnl What's the suffix to get an integer constant of the above size?
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AC_MSG_CHECKING([for value type constant suffix])
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case "${with_value_type}" in
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"long long int"|"long long")
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dnl We should be okay to default to longs..
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AC_MSG_RESULT([${rep_value_suffix}])
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AC_DEFINE_UNQUOTED(rep_PTR_SIZED_INT_SUFFIX, ${rep_value_suffix})
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dnl What's the printf integer conversion for this type?
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AC_MSG_CHECKING([for value type printf conversion])
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case "${with_value_type}" in
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"long long int"|"long long")
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dnl other options would be L or q!?
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AC_MSG_RESULT([${rep_value_conv}])
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AC_DEFINE_UNQUOTED(rep_PTR_SIZED_INT_CONV, "${rep_value_conv}")
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dnl Check for size of long
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AC_CHECK_SIZEOF(long)
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dnl Check if `long long int' is available, also check it's size, if not
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dnl available, then set it's size to the same as long
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AC_MSG_CHECKING([for long long int])
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AC_TRY_COMPILE([],[long long int foo = 42;],
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AC_DEFINE(rep_HAVE_LONG_LONG,1)
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AC_CHECK_SIZEOF(long long)],
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AC_DEFINE(SIZEOF_LONG_LONG,SIZEOF_LONG)])
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dnl This is the malloc granularity. It's unlikely that anything has
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dnl less alignment than the default value of the number of bytes in
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AC_ARG_WITH(malloc-alignment,
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[ --with-malloc-alignment=BYTES Must be less than or equal to the alignment
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returned by the malloc function. [BYTES=N]], [],
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[with_malloc_alignment=${with_value_sizeof}])
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AC_DEFINE_UNQUOTED(rep_MALLOC_ALIGNMENT, ${with_malloc_alignment})
502
dnl Check for gcc crashes on alpha (seems to be fixed in new snapshots, but
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dnl just to make it compile on all machines)
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if test "x${GCC}" = "xyes"; then
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AC_MSG_CHECKING([for broken alpha gcc])
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AC_TRY_COMPILE([],[__builtin_return_address(1);],
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[AC_DEFINE(BROKEN_ALPHA_GCC,1)
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AC_MSG_WARN([Backtrace support will not be compiled])])
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AC_MSG_CHECKING([for stack growth direction])
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AC_ARG_WITH(stack-direction,
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[ --with-stack-direction=DIR Stack growth direction. -1 for downwards,
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[AC_MSG_RESULT(${with_stack_direction})],
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[with_stack_direction=unknown])
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if test "${with_stack_direction}" = unknown; then
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AC_MSG_RESULT([assuming downwards])
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with_stack_direction="-1"
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dnl any other known stack directions..?
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if test "${with_stack_direction}" = unknown; then
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AC_TRY_RUN([ void inner (char *foo) { char bar; exit (!(foo >= &bar)); }
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void main () { char foo; inner (&foo); } ],
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[AC_MSG_RESULT([downwards])
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with_stack_direction=-1],
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[AC_MSG_RESULT([upwards])
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with_stack_direction=+1])
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if test "${with_stack_direction}" != unknown; then
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AC_DEFINE_UNQUOTED(STACK_DIRECTION, ${with_stack_direction})
540
dnl Nonstandard exported symbols
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AC_SUBST(repcommonexecdir)
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AC_SUBST(emacssitelispdir)
553
AC_DEFINE_UNQUOTED(rep_VERSION, "${version}")
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AC_DEFINE_UNQUOTED(rep_INTERFACE, ${libcurrent})
556
dnl Hacks for libintl
561
MKINSTALLDIRS='${top_srcdir}/mkinstalldirs'
562
INTLOBJS="\$(GETTOBJS)"
568
AC_SUBST(DATADIRNAME)
569
AC_SUBST(MKINSTALLDIRS)
575
dnl If it looks like GNU gettext is in libc, don't compile a local copy
576
USE_INCLUDED_LIBINTL=yes
577
AC_SUBST(USE_INCLUDED_LIBINTL)
578
AC_CHECK_FUNC(_nl_msg_cat_cntr,
579
[AC_DEFINE(LIBC_GETTEXT)
580
AC_CHECK_HEADERS(libintl.h)
581
USE_INCLUDED_LIBINTL=no])
583
dnl Build all files. Makes sure rules.mk is rebuild each time
584
AC_OUTPUT(${output_files}, [rm -f rules.mk])
586
dnl If it doesn't look like GNU Make is being used, give a friendly warning
587
tem=`make --version -f /dev/null 2>&1 | grep GNU`
588
if test "x$tem" = "x"; then
589
AC_MSG_WARN([You need to use GNU Make when compiling])
593
dnl major-mode: sh-mode
added
removed
configure.in
