freebsd-dev/contrib/groff/aclocal.m4
2003-05-01 13:09:50 +00:00

676 lines
17 KiB
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dnl Autoconf macros for groff.
dnl Copyright (C) 1989-1995, 2001, 2002 Free Software Foundation, Inc.
dnl
dnl This file is part of groff.
dnl
dnl groff is free software; you can redistribute it and/or modify it under
dnl the terms of the GNU General Public License as published by the Free
dnl Software Foundation; either version 2, or (at your option) any later
dnl version.
dnl
dnl groff is distributed in the hope that it will be useful, but WITHOUT ANY
dnl WARRANTY; without even the implied warranty of MERCHANTABILITY or
dnl FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
dnl for more details.
dnl
dnl You should have received a copy of the GNU General Public License along
dnl with groff; see the file COPYING. If not, write to the Free Software
dnl Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
dnl
dnl
AC_DEFUN(GROFF_PRINT,
[if test -z "$PSPRINT"; then
AC_CHECK_PROGS(LPR,lpr)
AC_CHECK_PROGS(LP,lp)
if test -n "$LPR" && test -n "$LP"; then
# HP-UX provides an lpr command that emulates lpr using lp,
# but it doesn't have lpq; in this case we want to use lp
# rather than lpr.
AC_CHECK_PROGS(LPQ,lpq)
test -n "$LPQ" || LPR=
fi
if test -n "$LPR"; then
PSPRINT="$LPR"
elif test -n "$LP"; then
PSPRINT="$LP"
fi
fi
AC_SUBST(PSPRINT)
AC_MSG_CHECKING([for command to use for printing PostScript files])
AC_MSG_RESULT($PSPRINT)
# Figure out DVIPRINT from PSPRINT.
AC_MSG_CHECKING([for command to use for printing dvi files])
if test -n "$PSPRINT" && test -z "$DVIPRINT"; then
if test "X$PSPRINT" = "Xlpr"; then
DVIPRINT="lpr -d"
else
DVIPRINT="$PSPRINT"
fi
fi
AC_SUBST(DVIPRINT)
AC_MSG_RESULT($DVIPRINT)])dnl
dnl
dnl
dnl Bison generated parsers have problems with C++ compilers other than g++.
dnl So byacc is preferred over bison.
dnl
AC_DEFUN(GROFF_PROG_YACC,
[AC_CHECK_PROGS(YACC, byacc 'bison -y', yacc)])dnl
dnl
dnl
dnl The following programs are needed for grohtml.
dnl
AC_DEFUN(GROFF_HTML_PROGRAMS,
[make_html=html
make_install_html=install_html
missing=
AC_CHECK_PROG(pnmcut, pnmcut, found, missing)
if test $pnmcut = missing; then
missing="$missing pnmcut"
fi
AC_CHECK_PROG(pnmcrop, pnmcrop, found, missing)
if test $pnmcrop = missing; then
missing="$missing pnmcrop"
fi
AC_CHECK_PROG(pnmtopng, pnmtopng, found, missing)
if test $pnmtopng = missing; then
missing="$missing pnmtopng"
fi
AC_CHECK_PROG(gs, gs gsos2, found, missing)
if test $gs = missing; then
missing="$missing gs"
fi
AC_CHECK_PROG(psselect, psselect, found, missing)
if test $psselect = missing; then
missing="$missing psselect"
fi
AC_CHECK_PROG(pnmtops, pnmtops, found, missing)
if test $pnmtops = missing; then
missing="$missing pnmtops"
fi
if test -n "$missing"; then
cnt=0
for i in $missing
do
cnt=`expr $cnt + 1`
eval "prog$cnt=$i"
done
plural="s"
case $cnt in
1)
plural=""
progs="\`$prog1'" ;;
2)
progs="\`$prog1' and \`$prog2'" ;;
3)
progs="\`$prog1', \`$prog2', and \`$prog3'" ;;
4)
progs="\`$prog1', \`$prog2', \`$prog3', and \`$prog4'" ;;
5)
progs="\`$prog1', \`$prog2', \`$prog3', \`$prog4', and \`$prog5'" ;;
6)
progs="\`$prog1', \`$prog2', \`$prog3', \`$prog4', \`$prog5', and \`$prog6'" ;;
esac
make_html=
make_install_html=
AC_MSG_WARN([
The program$plural
$progs
can't be found in the path, thus the HTML backend of groff (grohtml)
won't work properly. Consequently, no documentation in HTML format
is built and installed.
])
fi
AC_SUBST(make_html)
AC_SUBST(make_install_html)])dnl
dnl
dnl check to see whether pnmtops can handle the -nosetpage option
dnl
AC_DEFUN(GROFF_PNMTOPS_NOSETPAGE,
[AC_MSG_CHECKING([whether pnmtops can handle the -nosetpage option])
if echo P2 2 2 255 0 1 2 0 | pnmtops -nosetpage > /dev/null 2>&1 ; then
AC_MSG_RESULT(yes)
pnmtops_nosetpage="pnmtops -nosetpage"
else
AC_MSG_RESULT(no)
pnmtops_nosetpage="pnmtops"
fi
AC_SUBST(pnmtops_nosetpage)
])dnl
dnl
dnl
dnl GROFF_CSH_HACK(if hack present, if not present)
dnl
AC_DEFUN(GROFF_CSH_HACK,
[AC_MSG_CHECKING([for csh hash hack])
cat <<EOF >conftest.sh
#!/bin/sh
true || exit 0
export PATH || exit 0
exit 1
EOF
chmod +x conftest.sh
if echo ./conftest.sh | (csh >/dev/null 2>&1) >/dev/null 2>&1; then
AC_MSG_RESULT(yes); $1
else
AC_MSG_RESULT(no); $2
fi
rm -f conftest.sh])dnl
dnl
dnl
dnl From udodo!hans@relay.NL.net (Hans Zuidam)
dnl
AC_DEFUN(GROFF_ISC_SYSV3,
[AC_MSG_CHECKING([for ISC 3.x or 4.x])
changequote(,)dnl
if grep '[34]\.' /usr/options/cb.name >/dev/null 2>&1
changequote([,])dnl
then
AC_MSG_RESULT(yes)
AC_DEFINE(_SYSV3, 1,
[Define if you have ISC 3.x or 4.x.])
else
AC_MSG_RESULT(no)
fi])dnl
dnl
dnl
AC_DEFUN(GROFF_POSIX,
[AC_MSG_CHECKING([whether -D_POSIX_SOURCE is necessary])
AC_LANG_PUSH(C++)
AC_TRY_COMPILE([#include <stdio.h>
extern "C" { void fileno(int); }],,
AC_MSG_RESULT(yes);AC_DEFINE(_POSIX_SOURCE, 1,
[Define if -D_POSIX_SOURCE is necessary.]),
AC_MSG_RESULT(no))
AC_LANG_POP(C++)])dnl
dnl
dnl
dnl srand() of SunOS 4.1.3 has return type int instead of void
dnl
AC_DEFUN(GROFF_SRAND,
[AC_LANG_PUSH(C++)
AC_MSG_CHECKING([for return type of srand])
AC_TRY_COMPILE([#include <stdlib.h>
extern "C" { void srand(unsigned int); }],,
AC_MSG_RESULT(void);AC_DEFINE(RET_TYPE_SRAND_IS_VOID, 1,
[Define if srand() returns void not int.]),
AC_MSG_RESULT(int))
AC_LANG_POP(C++)])dnl
dnl
dnl
AC_DEFUN(GROFF_SYS_NERR,
[AC_LANG_PUSH(C++)
AC_MSG_CHECKING([for sys_nerr in <errno.h> or <stdio.h>])
AC_TRY_COMPILE([#include <errno.h>
#include <stdio.h>],
[int k; k = sys_nerr;],
AC_MSG_RESULT(yes);AC_DEFINE(HAVE_SYS_NERR, 1,
[Define if you have sysnerr in <errno.h> or
<stdio.h>.]),
AC_MSG_RESULT(no))
AC_LANG_POP(C++)])dnl
dnl
dnl
AC_DEFUN(GROFF_SYS_ERRLIST,
[AC_MSG_CHECKING([for sys_errlist[] in <errno.h> or <stdio.h>])
AC_TRY_COMPILE([#include <errno.h>
#include <stdio.h>],
[int k; k = (int)sys_errlist[0];],
AC_MSG_RESULT(yes);AC_DEFINE(HAVE_SYS_ERRLIST, 1,
[Define if you have sys_errlist in <errno.h>
or in <stdio.h>.]),
AC_MSG_RESULT(no))])dnl
dnl
dnl
AC_DEFUN(GROFF_OSFCN_H,
[AC_LANG_PUSH(C++)
AC_MSG_CHECKING([C++ <osfcn.h>])
AC_TRY_COMPILE([#include <osfcn.h>],
[read(0, 0, 0); open(0, 0);],
AC_MSG_RESULT(yes);AC_DEFINE(HAVE_CC_OSFCN_H, 1,
[Define if you have a C++ <osfcn.h>.]),
AC_MSG_RESULT(no))
AC_LANG_POP(C++)])dnl
dnl
dnl
AC_DEFUN(GROFF_LIMITS_H,
[AC_LANG_PUSH(C++)
AC_MSG_CHECKING([C++ <limits.h>])
AC_TRY_COMPILE([#include <limits.h>],
[int x = INT_MIN; int y = INT_MAX; int z = UCHAR_MAX;],
AC_MSG_RESULT(yes);AC_DEFINE(HAVE_CC_LIMITS_H, 1,
[Define if you have a C++ <limits.h>.]),
AC_MSG_RESULT(no))
AC_LANG_POP(C++)])dnl
dnl
dnl
AC_DEFUN(GROFF_STDINT_H,
[AC_LANG_PUSH(C++)
AC_MSG_CHECKING([C++ <stdint.h>])
AC_TRY_COMPILE([#include <stdint.h>],
[uint32_t x; int32_t y;],
AC_MSG_RESULT(yes);AC_DEFINE(HAVE_CC_STDINT_H, 1,
[Define if you have a C++ <stdint.h>.]),
AC_MSG_RESULT(no))
AC_LANG_POP(C++)])dnl
dnl
dnl
AC_DEFUN(GROFF_TIME_T,
[AC_LANG_PUSH(C++)
AC_MSG_CHECKING([for declaration of time_t])
AC_TRY_COMPILE([#include <time.h>],
[time_t t = time(0); struct tm *p = localtime(&t);],
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no);AC_DEFINE(LONG_FOR_TIME_T, 1,
[Define if localtime() takes a long * not a
time_t *.]))
AC_LANG_POP(C++)])dnl
dnl
dnl
AC_DEFUN(GROFF_STRUCT_EXCEPTION,
[AC_MSG_CHECKING([struct exception])
AC_TRY_COMPILE([#include <math.h>],
[struct exception e;],
AC_MSG_RESULT(yes);AC_DEFINE(HAVE_STRUCT_EXCEPTION, 1,
[Define if <math.h> defines struct exception.]),
AC_MSG_RESULT(no))])dnl
dnl
dnl
AC_DEFUN(GROFF_ARRAY_DELETE,
[AC_LANG_PUSH(C++)
AC_MSG_CHECKING([whether ANSI array delete syntax supported])
AC_TRY_COMPILE(, [char *p = new char[5]; delete [] p;],
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no);AC_DEFINE(ARRAY_DELETE_NEEDS_SIZE, 1,
[Define if your C++ doesn't understand
`delete []'.]))
AC_LANG_POP(C++)])dnl
dnl
dnl
dnl
AC_DEFUN(GROFF_TRADITIONAL_CPP,
[AC_LANG_PUSH(C++)
AC_MSG_CHECKING([traditional preprocessor])
AC_TRY_COMPILE([#define name2(a,b) a/**/b],[int name2(foo,bar);],
AC_MSG_RESULT(yes);AC_DEFINE(TRADITIONAL_CPP, 1,
[Define if your C++ compiler uses a
traditional (Reiser) preprocessor.]),
AC_MSG_RESULT(no))
AC_LANG_POP(C++)])dnl
dnl
dnl
AC_DEFUN(GROFF_WCOREFLAG,
[AC_MSG_CHECKING([w_coredump])
AC_TRY_RUN([#include <sys/types.h>
#include <sys/wait.h>
main()
{
#ifdef WCOREFLAG
exit(1);
#else
int i = 0;
((union wait *)&i)->w_coredump = 1;
exit(i != 0200);
#endif
}],
AC_MSG_RESULT(yes);AC_DEFINE(WCOREFLAG, 0200,
[Define if the 0200 bit of the status returned
by wait() indicates whether a core image was
produced for a process that was terminated by
a signal.]),
AC_MSG_RESULT(no),
AC_MSG_RESULT(no))])dnl
dnl
dnl
AC_DEFUN(GROFF_BROKEN_SPOOLER_FLAGS,
[AC_MSG_CHECKING([default value for grops -b option])
test -n "${BROKEN_SPOOLER_FLAGS}" || BROKEN_SPOOLER_FLAGS=7
AC_MSG_RESULT($BROKEN_SPOOLER_FLAGS)
AC_SUBST(BROKEN_SPOOLER_FLAGS)])dnl
dnl
dnl
AC_DEFUN(GROFF_PAGE,
[AC_MSG_CHECKING([default paper size])
groff_prefix=$prefix
test "x$prefix" = xNONE && groff_prefix=$ac_default_prefix
if test -z "$PAGE"; then
descfile=
if test -r $groff_prefix/share/groff/font/devps/DESC; then
descfile=$groff_prefix/share/groff/font/devps/DESC
elif test -r $groff_prefix/lib/groff/font/devps/DESC; then
descfile=$groff_prefix/lib/groff/font/devps/DESC
else
for f in $groff_prefix/share/groff/*/font/devps/DESC; do
if test -r $f; then
descfile=$f
break
fi
done
fi
if test -n "$descfile"; then
changequote(,)dnl
if grep '^paperlength[ ]\+841890' $descfile
>/dev/null 2>&1; then
PAGE=A4
elif grep '^papersize[ ]\+[aA]4' $descfile \
>/dev/null 2>&1; then
PAGE=A4
fi
changequote([,])dnl
fi
fi
if test -z "$PAGE"; then
dom=`awk '([$]1 == "dom" || [$]1 == "search") { print [$]2; exit}' \
/etc/resolv.conf 2>/dev/null`
if test -z "$dom"; then
dom=`(domainname) 2>/dev/null | tr -d '+'`
if test -z "$dom" \
|| test "$dom" = '(none)'; then
dom=`(hostname) 2>/dev/null | grep '\.'`
fi
fi
changequote(,)dnl
# If the top-level domain is two letters and it's not `us' or `ca'
# then they probably use A4 paper.
case "$dom" in
*.[Uu][Ss]|*.[Cc][Aa]) ;;
*.[A-Za-z][A-Za-z]) PAGE=A4 ;;
esac
changequote([,])dnl
fi
test -n "$PAGE" || PAGE=letter
if test "x$PAGE" = "xA4"; then
AC_DEFINE(PAGEA4, 1,
[Define if the printer's page size is A4.])
fi
AC_MSG_RESULT($PAGE)
AC_SUBST(PAGE)])dnl
dnl
dnl
AC_DEFUN(GROFF_CXX_CHECK,
[AC_REQUIRE([AC_PROG_CXX])
AC_LANG_PUSH(C++)
if test "$cross_compiling" = no; then
AC_MSG_CHECKING([that C++ compiler can compile simple program])
fi
AC_TRY_RUN([int main() { return 0; }],
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no);AC_MSG_ERROR([a working C++ compiler is required]),
:)
if test "$cross_compiling" = no; then
AC_MSG_CHECKING([that C++ static constructors and destructors are called])
fi
AC_TRY_RUN([
extern "C" {
void _exit(int);
}
int i;
struct A {
char dummy;
A() { i = 1; }
~A() { if (i == 1) _exit(0); }
};
A a;
int main() { return 1; }
],
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no);AC_MSG_ERROR([a working C++ compiler is required]),
:)
AC_MSG_CHECKING([that header files support C++])
AC_TRY_LINK([#include <stdio.h>],
[fopen(0, 0);],
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no);AC_MSG_ERROR([header files do not support C++ (if you are using a version of gcc/g++ earlier than 2.5, you should install libg++)]))
AC_LANG_POP(C++)])dnl
dnl
dnl
AC_DEFUN(GROFF_TMAC,
[AC_MSG_CHECKING([for prefix of system macro packages])
sys_tmac_prefix=
sys_tmac_file_prefix=
for d in /usr/share/lib/tmac /usr/lib/tmac; do
for t in "" tmac.; do
for m in an s m; do
f=$d/$t$m
if test -z "$sys_tmac_prefix" \
&& test -f $f \
&& grep '^\.if' $f >/dev/null 2>&1; then
sys_tmac_prefix=$d/$t
sys_tmac_file_prefix=$t
fi
done
done
done
AC_MSG_RESULT($sys_tmac_prefix)
AC_SUBST(sys_tmac_prefix)
tmac_wrap=
AC_MSG_CHECKING([which system macro packages should be made available])
if test "x$sys_tmac_file_prefix" = "xtmac."; then
for f in $sys_tmac_prefix*; do
suff=`echo $f | sed -e "s;$sys_tmac_prefix;;"`
case "$suff" in
e) ;;
*)
grep "Copyright.*Free Software Foundation" $f >/dev/null \
|| tmac_wrap="$tmac_wrap $suff" ;;
esac
done
elif test -n "$sys_tmac_prefix"; then
files=`echo $sys_tmac_prefix*`
grep "\\.so" $files >conftest.sol
for f in $files; do
case "$f" in
${sys_tmac_prefix}e) ;;
*.me) ;;
*/ms.*) ;;
*)
b=`basename $f`
if grep "\\.so.*/$b\$" conftest.sol >/dev/null \
|| grep -l "Copyright.*Free Software Foundation" $f >/dev/null; then
:
else
suff=`echo $f | sed -e "s;$sys_tmac_prefix;;"`
case "$suff" in
tmac.*) ;;
*) tmac_wrap="$tmac_wrap $suff" ;;
esac
fi
esac
done
rm -f conftest.sol
fi
AC_MSG_RESULT([$tmac_wrap])
AC_SUBST(tmac_wrap)])dnl
dnl
dnl
AC_DEFUN(GROFF_G,
[AC_MSG_CHECKING([for existing troff installation])
if test "x`(echo .tm '|n(.g' | tr '|' '\\\\' | troff -z -i 2>&1) 2>/dev/null`" = x0; then
AC_MSG_RESULT(yes)
g=g
else
AC_MSG_RESULT(no)
g=
fi
AC_SUBST(g)])dnl
dnl
dnl
dnl We need the path to install-sh to be absolute.
dnl
AC_DEFUN(GROFF_INSTALL_SH,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
ac_dir=`cd $ac_aux_dir; pwd`
ac_install_sh="$ac_dir/install-sh -c"])dnl
dnl
dnl
dnl Test whether install-info is available.
dnl
AC_DEFUN(GROFF_INSTALL_INFO,
[AC_CHECK_PROGS(INSTALL_INFO, install-info, :)])dnl
dnl
dnl
dnl At least one UNIX system, Apple Macintosh Rhapsody 5.5,
dnl does not have -lm.
dnl
AC_DEFUN(GROFF_LIBM,
[AC_CHECK_LIB(m,sin,LIBM=-lm)
AC_SUBST(LIBM)])dnl
dnl
dnl
dnl We need top_srcdir to be absolute.
dnl
AC_DEFUN(GROFF_SRCDIR,
[ac_srcdir_defaulted=no
srcdir=`cd $srcdir; pwd`])dnl
dnl
dnl
dnl This simplifies Makefile rules.
dnl
AC_DEFUN(GROFF_BUILDDIR,
[groff_top_builddir=`pwd`
AC_SUBST(groff_top_builddir)])dnl
dnl
dnl
dnl Check for EBCDIC - stolen from the OS390 Unix LYNX port
dnl
AC_DEFUN(GROFF_EBCDIC,
[AC_MSG_CHECKING([whether character set is EBCDIC])
AC_TRY_COMPILE(,
[/* Treat any failure as ASCII for compatibility with existing art.
Use compile-time rather than run-time tests for cross-compiler
tolerance. */
#if '0' != 240
make an error "Character set is not EBCDIC"
#endif],
groff_cv_ebcdic="yes"
TTYDEVDIRS="font/devcp1047"
AC_MSG_RESULT(yes)
AC_DEFINE(IS_EBCDIC_HOST, 1,
[Define if the host's encoding is EBCDIC.]),
groff_cv_ebcdic="no"
TTYDEVDIRS="font/devascii font/devlatin1"
OTHERDEVDIRS="font/devlj4 font/devlbp"
AC_MSG_RESULT(no))
AC_SUBST(TTYDEVDIRS)
AC_SUBST(OTHERDEVDIRS)])dnl
dnl
dnl
dnl Check for OS/390 Unix. We test for EBCDIC also -- the Linux port (with
dnl gcc) to OS/390 uses ASCII internally.
dnl
AC_DEFUN(GROFF_OS390,
[if test "$groff_cv_ebcdic" = "yes"; then
AC_MSG_CHECKING([for OS/390 Unix])
case `uname` in
OS/390)
CFLAGS="$CFLAGS -D_ALL_SOURCE"
AC_MSG_RESULT(yes) ;;
*)
AC_MSG_RESULT(no) ;;
esac
fi])dnl
dnl
dnl
dnl Check whether we need a declaration for a function.
dnl
dnl Stolen from GNU bfd.
dnl
AC_DEFUN(GROFF_NEED_DECLARATION,
[AC_MSG_CHECKING([whether $1 must be declared])
AC_LANG_PUSH(C++)
AC_CACHE_VAL(groff_cv_decl_needed_$1,
[AC_TRY_COMPILE([
#include <stdio.h>
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_MATH_H
#include <math.h>
#endif],
[#ifndef $1
char *p = (char *) $1;
#endif],
groff_cv_decl_needed_$1=no,
groff_cv_decl_needed_$1=yes)])
AC_MSG_RESULT($groff_cv_decl_needed_$1)
if test $groff_cv_decl_needed_$1 = yes; then
AC_DEFINE([NEED_DECLARATION_]translit($1, [a-z], [A-Z]), 1,
[Define if your C++ doesn't declare ]$1[().])
fi
AC_LANG_POP(C++)])dnl
dnl
dnl
dnl If mkstemp() isn't available, use our own mkstemp.cpp file.
dnl
AC_DEFUN(GROFF_MKSTEMP,
[AC_MSG_CHECKING([for mkstemp])
AC_LANG_PUSH(C++)
AC_LIBSOURCE(mkstemp.cpp)
AC_TRY_LINK([#include <stdlib.h>
#include <unistd.h>
int (*f) (char *);],
[f = mkstemp;],
AC_MSG_RESULT(yes);AC_DEFINE(HAVE_MKSTEMP, 1,
[Define if you have mkstemp().]),
AC_MSG_RESULT(no);_AC_LIBOBJ(mkstemp))
AC_LANG_POP(C++)])dnl
dnl
dnl
dnl Test whether <inttypes.h> exists, doesn't clash with <sys/types.h>,
dnl and declares uintmax_t. Taken from the fileutils package.
dnl
AC_DEFUN(GROFF_INTTYPES_H,
[AC_LANG_PUSH(C++)
AC_MSG_CHECKING([for inttypes.h])
AC_TRY_COMPILE([#include <sys/types.h>
#include <inttypes.h>],
[uintmax_t i = (uintmax_t)-1;],
groff_cv_header_inttypes_h=yes,
groff_cv_header_inttypes_h=no)
AC_MSG_RESULT($groff_cv_header_inttypes_h)
AC_LANG_POP(C++)])dnl
dnl
dnl
dnl Test for working `unsigned long long'. Taken from the fileutils package.
dnl
AC_DEFUN(GROFF_UNSIGNED_LONG_LONG,
[AC_LANG_PUSH(C++)
AC_MSG_CHECKING([for unsigned long long])
AC_TRY_LINK([unsigned long long ull = 1; int i = 63;],
[unsigned long long ullmax = (unsigned long long)-1;
return ull << i | ull >> i | ullmax / ull | ullmax % ull;],
groff_cv_type_unsigned_long_long=yes,
groff_cv_type_unsigned_long_long=no)
AC_MSG_RESULT($groff_cv_type_unsigned_long_long)
AC_LANG_POP(C++)])dnl
dnl
dnl
dnl Define uintmax_t to `unsigned long' or `unsigned long long'
dnl if <inttypes.h> does not exist. Taken from the fileutils package.
dnl
AC_DEFUN(GROFF_UINTMAX_T,
[AC_REQUIRE([GROFF_INTTYPES_H])
if test $groff_cv_header_inttypes_h = no; then
AC_REQUIRE([GROFF_UNSIGNED_LONG_LONG])
test $groff_cv_type_unsigned_long_long = yes \
&& ac_type='unsigned long long' \
|| ac_type='unsigned long'
AC_DEFINE_UNQUOTED(uintmax_t, $ac_type,
[Define uintmax_t to `unsigned long' or
`unsigned long long' if <inttypes.h> does not
exist.])
fi])dnl