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- dnl Autoconf macros for groff.
- dnl Copyright (C) 1989, 1990, 1991, 1992 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, 675 Mass Ave, Cambridge, MA 02139, USA.
- dnl
- define(GROFF_EXIT,[rm -f conftest* core; exit 1])dnl
- define(GROFF_PREFIX,[AC_PROVIDE([$0])AC_PREFIX(grops)AC_PREFIX(gcc)])dnl
- define(GROFF_PROG_CCC,
- [AC_PROVIDE([$0])AC_REQUIRE([AC_PROG_CC])dnl
- cc_compile='$CCC conftest.cc -o conftest $CCLIBS $LIBS >/dev/null 2>&1'
- AC_SUBST(CCLIBS)
- if test -z "$CCC"; then
- # See whether the C compiler is also a C++ compiler.
- echo checking if C compiler is also a C++ compiler
- cat <<EOF > conftest.cc
- #ifdef __cplusplus
- yes
- #endif
- EOF
- $CC -E conftest.cc >conftest.out 2>&1
- if egrep yes conftest.out >/dev/null 2>&1; then
- CCC="$CC"
- fi
- fi
- AC_PROGRAM_CHECK(CCC,g++,g++,)
- AC_PROGRAM_CHECK(CCC,CC,CC,)
- AC_PROGRAM_CHECK(CCC,cc++,cc++,)
- if test -z "$CCC"; then
- cat <<EOM
- This package requires a C++ compiler, but I couldn't find one.
- Set the environment variable CCC to the name of your C++ compiler.
- EOM
- GROFF_EXIT
- fi
- echo checking that C++ compiler can compile very simple C++ program
- GROFF_CC_TEST_PROGRAM([
- int main() { return 0; }
- ],,
- cat <<EOM
- $CCC was unable successfully to compile a very simple C++ program
- (the C++ program was in a file with a suffix of .cc)
- EOM
- GROFF_EXIT
- ,)
- echo checking that C++ static constructors and destructors are called
- GROFF_CC_TEST_PROGRAM([
- 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; }
- ],,
- cat <<EOM
- $CCC is not installed correctly: static constructors and destructors do not work
- EOM
- GROFF_EXIT
- ,)
- GROFF_CC_COMPILE_CHECK([C++ header files],[#include <stdio.h>],
- [fopen(0, 0);],,
- [cat <<\EOF
- Your header files do not appear to support C++.
- I was unable to compile and link a simple C++ program that used a function
- declared in <stdio.h>.
- If you're using a version of gcc/g++ earlier than 2.5,
- you should install libg++.
- EOF
- GROFF_EXIT])])dnl
- define(GROFF_CC_COMPILE_CHECK,
- [AC_PROVIDE([$0])AC_REQUIRE([GROFF_PROG_CCC])echo checking for $1
- cat <<EOF >conftest.cc
- [$2]
- int main() { return 0; } void t() { [$3] }
- EOF
- dnl Don't try to run the program, which would prevent cross-configuring.
- if eval $cc_compile; then
- ifelse([$4], , :, [$4])
- ifelse([$5], , , [else
- $5
- ])dnl
- fi
- rm -f conftest*])dnl
- dnl
- define(GROFF_CC_TEST_PROGRAM,
- [AC_PROVIDE([$0])AC_REQUIRE([GROFF_PROG_CCC])ifelse([$4], , ,
- [AC_REQUIRE([AC_CROSS_CHECK])if $cross_compiling
- then
- $4
- else
- ])dnl
- cat <<EOF > conftest.cc
- [$1]
- EOF
- rm -f conftest
- eval $cc_compile
- if test -s conftest && (./conftest) 2>/dev/null; then
- ifelse([$2], , :, [$2])
- ifelse([$3], , , [else
- $3
- ])dnl
- fi
- ifelse([$4], , , fi
- )dnl
- rm -f conftest*])dnl
- dnl
- define(GROFF_PAGE,
- [AC_REQUIRE([GROFF_PREFIX])
- if test -z "$PAGE" && test -r $prefix/lib/groff/font/devps/DESC
- then
- if grep "^paperlength 841890" \
- $prefix/lib/groff/font/devps/DESC >/dev/null 2>&1
- then
- PAGE=A4
- else
- PAGE=letter
- fi
- fi
- if test -z "$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 "$dom"
- then
- dom=`(hostname) 2>/dev/null | grep '\.'`
- fi
- fi
-
- changequote(,)dnl
- # If the top-level domain is two letters and it's not `us' or `ca'
- # then they probably use A4 paper.
- case "$dom" in
- *.[Uu][Ss]|*.[Cc][Aa]) ;;
- *.[A-Za-z][A-Za-z]) PAGE=A4 ;;
- esac
- changequote([,])dnl
- fi
- test -n "$PAGE" || PAGE=letter
- echo guessing $PAGE size paper
- AC_SUBST(PAGE)])dnl
- dnl
- define(GROFF_PERL_PATH,
- [echo checking for perl
- PERLPATH=
- saveifs="$IFS"; IFS="${IFS}:"
- for dir in $PATH; do
- test -z "$dir" && dir=.
- if test -f $dir/perl; then
- PERLPATH="$dir/perl"
- break
- fi
- done
- IFS="$saveifs"
- AC_SUBST(PERLPATH)])dnl
- dnl
- define(GROFF_WCOREFLAG,
- [echo checking for w_coredump
- AC_TEST_PROGRAM([
- #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_DEFINE(WCOREFLAG,0200),,)])dnl
- dnl
- define(GROFF_MMAP,
- [AC_COMPILE_CHECK([mmap],[#include <sys/types.h>
- #include <sys/mman.h>],
- [char *p = mmap(0, 0, PROT_READ, MAP_PRIVATE, 0, 0); munmap(p, 0);],
- AC_DEFINE(HAVE_MMAP))])dnl
- dnl;
- define(GROFF_SYS_SIGLIST,
- [AC_COMPILE_CHECK([sys_siglist],,changequote(,)dnl
- extern char *sys_siglist[]; sys_siglist[0] = 0;,changequote([,])dnl
- AC_DEFINE(HAVE_SYS_SIGLIST))])dnl
- dnl
- define(GROFF_STRUCT_EXCEPTION,
- [AC_COMPILE_CHECK([struct exception],[#include <math.h>],
- [struct exception e;],
- AC_DEFINE(HAVE_STRUCT_EXCEPTION))])dnl
- define(GROFF_COOKIE_BUG,
- [echo checking for gcc/g++ delete bug
- GROFF_CC_TEST_PROGRAM([
- #include <stdlib.h>
- #include <stddef.h>
-
- int testit = 0;
-
- int main()
- {
- testit = 1;
- int *p = new int;
- delete p;
- testit = 0;
- return 1;
- }
-
- static unsigned dummy[3];
-
- void *operator new(size_t n)
- {
- if (testit) {
- dummy[1] = -(unsigned)(dummy + 2);
- return dummy + 2;
- }
- else
- return (void *)malloc(n);
- }
-
- void operator delete(void *p)
- {
- if (testit) {
- if (p == dummy)
- exit(0);
- }
- else
- free(p);
- }
- ],AC_DEFINE(COOKIE_BUG),,)])dnl
- dnl
- define(GROFF_CFRONT_ANSI_BUG,
- [AC_REQUIRE([GROFF_LIMITS_H])echo checking for cfront ANSI C INT_MIN bug
- GROFF_CC_TEST_PROGRAM([#include <stdlib.h>
- #ifdef HAVE_CC_LIMITS_H
- #include <limits.h>
- #else
- #define INT_MAX 2147483647
- #endif
-
- #undef INT_MIN
- #define INT_MIN (-INT_MAX-1)
-
- int main()
- {
- int z = 0;
- return INT_MIN < z;
- }
- ],AC_DEFINE(CFRONT_ANSI_BUG),,)])dnl
- dnl
- define(GROFF_ARRAY_DELETE,
- [GROFF_CC_COMPILE_CHECK(new array delete syntax,,
- changequote(,)dnl
- char *p = new char[5]; delete [] p;changequote([,]),
- ,AC_DEFINE(ARRAY_DELETE_NEEDS_SIZE))])dnl
- dnl
- define(GROFF_BROKEN_SPOOLER_FLAGS,
- [test -n "${BROKEN_SPOOLER_FLAGS}" || BROKEN_SPOOLER_FLAGS=7
- echo using default value of ${BROKEN_SPOOLER_FLAGS} for grops -b option
- AC_SUBST(BROKEN_SPOOLER_FLAGS)])dnl
- dnl
- define(GROFF_PRINT,
- [if test -z "$PSPRINT"
- then
- AC_PROGRAMS_CHECK(LPR,lpr)
- AC_PROGRAMS_CHECK(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_PROGRAMS_CHECK(LPQ,lpq)
- test -n "$LPQ" || LPR=
- fi
- if test -n "$LPR"
- then
- PSPRINT="$LPR"
- elif test -n "$LP"
- then
- PSPRINT="$LP"
- fi
- fi
- AC_SUBST(PSPRINT)
- # Figure out DVIPRINT from PSPRINT.
- if test -n "$PSPRINT" && test -z "$DVIPRINT"
- then
- if test "X$PSPRINT" = "Xlpr"
- then
- DVIPRINT="lpr -d"
- else
- DVIPRINT="$PSPRINT"
- fi
- fi
- AC_SUBST(DVIPRINT)])dnl
- define(GROFF_GETOPT,
- [GROFF_CC_COMPILE_CHECK([declaration of getopt in stdlib.h],
- [#include <stdlib.h>
- extern "C" { void getopt(int); }],,,
- AC_DEFINE(STDLIB_H_DECLARES_GETOPT))
- GROFF_CC_COMPILE_CHECK([declaration of getopt in unistd.h],
- [#include <sys/types.h>
- #include <unistd.h>
- extern "C" { void getopt(int); }],,,
- AC_DEFINE(UNISTD_H_DECLARES_GETOPT))
- ])dnl
- define(GROFF_PUTENV,
- [GROFF_CC_COMPILE_CHECK([declaration of putenv],
- [#include <stdlib.h>
- extern "C" { void putenv(int); }],,,
- AC_DEFINE(STDLIB_H_DECLARES_PUTENV))])dnl
- define(GROFF_POPEN,
- [GROFF_CC_COMPILE_CHECK([declaration of popen],
- [#include <stdio.h>
- extern "C" { void popen(int); }],,,
- AC_DEFINE(STDIO_H_DECLARES_POPEN))])dnl
- define(GROFF_PCLOSE,
- [GROFF_CC_COMPILE_CHECK([declaration of pclose],
- [#include <stdio.h>
- extern "C" { void pclose(int); }],,,
- AC_DEFINE(STDIO_H_DECLARES_PCLOSE))])dnl
- define(GROFF_ETAGSCCFLAG,
- [echo checking for etags C++ option
- for flag in p C
- do
- test -z "$ETAGSCCFLAG" || break
- >conftest.c
- (etags -$flag -o /dev/null conftest.c >/dev/null 2>&1) 2>/dev/null &&
- ETAGSCCFLAG="-$flag"
- rm -f conftest.c
- done
- AC_SUBST(ETAGSCCFLAG)])dnl
- define(GROFF_LIMITS_H,
- [AC_PROVIDE([$0])GROFF_CC_COMPILE_CHECK(['C++ <limits.h>'],
- [#include <limits.h>],
- [int x = INT_MIN; int y = INT_MAX; int z = UCHAR_MAX;],
- AC_DEFINE(HAVE_CC_LIMITS_H))])dnl
- define(GROFF_TRADITIONAL_CPP,
- [GROFF_CC_COMPILE_CHECK([traditional preprocessor],
- [#define name2(a,b) a/**/b],[int name2(foo,bar);],
- AC_DEFINE(TRADITIONAL_CPP))])dnl
- define(GROFF_TIME_T,
- [GROFF_CC_COMPILE_CHECK([time_t],[#include <time.h>],
- [time_t t = time(0); struct tm *p = localtime(&t);],,
- AC_DEFINE(LONG_FOR_TIME_T))])dnl
- define(GROFF_OSFCN_H,
- [GROFF_CC_COMPILE_CHECK(['C++ <osfcn.h>'],[#include <osfcn.h>],
- [read(0, 0, 0); open(0, 0);],AC_DEFINE(HAVE_CC_OSFCN_H))])dnl
- dnl Bison generated parsers have problems with C++ compilers other than g++.
- dnl So byacc is preferred over bison.
- define(GROFF_PROG_YACC,
- [AC_PROGRAM_CHECK(YACC, byacc, byacc, )
- AC_PROGRAM_CHECK(YACC, bison, bison -y, yacc)
- ])dnl
- dnl GROFF_CSH_HACK(if hack present, if not present)
- define(GROFF_CSH_HACK,
- [echo 'checking for csh # 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
- :; $1
- else
- :; $2
- fi
- rm -f conftest.sh
- ])dnl
- define(GROFF_POSIX,
- [GROFF_CC_COMPILE_CHECK(whether -D_POSIX_SOURCE is necessary,
- [#include <stdio.h>],
- [(void)fileno(stdin);],,
- AC_DEFINE(_POSIX_SOURCE))])dnl
- dnl From udodo!hans@relay.NL.net (Hans Zuidam)
- define(GROFF_ISC_SYSV3,
- [echo '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_DEFINE(_SYSV3)
- fi])dnl
-