lyx_mirror/acinclude.m4

dnl Some useful functions for LyXs configure.in                 -*- sh -*-
dnl Author: Jean-Marc Lasgouttes (Jean-Marc.Lasgouttes@inria.fr)
dnl         Lars Gullik Bj<42>nnes (larsbj@lyx.org)


dnl Usage LYX_GET_VERSION   Sets "lyx_version" to the version of LyX being 
dnl   built, displays it and sets variable "lyx_devel" to yes or no depending 
dnl   whether the version is a development release or not. 
AC_DEFUN(LYX_GET_VERSION,[
changequote(, ) dnl
VERSION=`grep '#define *LYX_VERSION' $1 |
              sed -e 's/^.*"\(.*\)"$/\1/' 2>/dev/null`
echo "configuring LyX version $VERSION"
if echo "$VERSION" | grep 'cvs' >/dev/null ; then
  lyx_devel_version=yes
  echo "WARNING: This is a development version. Expect bugs."
else
  lyx_devel_version=no
fi
if echo "$VERSION" | grep 'pre' > /dev/null ; then
    lyx_prerelease=yes
    echo "WARNING: This is a prerelease. Be careful and backup your documents."
else
    lyx_prerelease=no
fi
changequote([, ]) dnl
PACKAGE=lyx${program_suffix}
AC_SUBST(lyx_devel_version)
if test $lyx_devel_version = yes ; then 
  AC_DEFINE(DEVEL_VERSION, 1, Define if you are building a development version of LyX)
fi])

dnl Usage: LYX_ERROR(message)  Displays the warning "message" and sets the
dnl flag lyx_error to yes.
AC_DEFUN(LYX_ERROR,[
lyx_error_txt="$lyx_error_txt
** $1
"
lyx_error=yes])


dnl Usage: LYX_WARNING(message)  Displays the warning "message" and sets the
dnl flag lyx_warning to yes.
AC_DEFUN(LYX_WARNING,[
lyx_warning_txt="$lyx_warning_txt
== $1
"
lyx_warning=yes])


dnl Usage: LYX_LIB_ERROR(file,library)  Displays an error message indication 
dnl  that 'file' cannot be found because 'lib' may be uncorrectly installed.
AC_DEFUN(LYX_LIB_ERROR,[
LYX_ERROR([Cannot find $1. Please check that the $2 library
   is correctly installed on your system.])])


dnl Usage: LYX_CHECK_ERRORS  Displays a warning message if a LYX_ERROR
dnl   has occured previously. 
AC_DEFUN(LYX_CHECK_ERRORS,[
if test x$lyx_error = xyes; then
cat <<EOF
**** The following problems have been detected by configure. 
**** Please check the messages below before running 'make'.
**** (see the section 'Problems' in the INSTALL file)
$lyx_error_txt
$lyx_warning_txt
deleting cache $cache_file
EOF
  rm -f $cache_file
else

if test x$lyx_warning = xyes; then
cat <<EOF
=== The following minor problems have been detected by configure. 
=== Please check the messages below before running 'make'.
=== (see the section 'Problems' in the INSTALL file)
$lyx_warning_txt
EOF
fi
cat <<EOF
Configuration of LyX was successful.  
Type 'make' to compile the program, 
and then 'make install' to install it.
EOF
fi])


dnl LYX_SEARCH_PROG(VARIABLE-NAME,PROGRAMS-LIST,ACTION-IF-FOUND)
dnl             
define(LYX_SEARCH_PROG,[dnl
for ac_prog in $2 ; do
# Extract the first word of "$ac_prog", so it can be a program name with args.
  set dummy $ac_prog ; ac_word=$[2]
  if test -z "[$]$1"; then
    IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
    for ac_dir in $PATH; do
      test -z "$ac_dir" && ac_dir=.
      if test -f [$ac_dir/$ac_word]; then
        $1="$ac_prog"
        break
      fi
    done
    IFS="$ac_save_ifs"
  fi

  if test -n "[$]$1"; then
    ac_result=yes
  else
    ac_result=no
  fi
  ifelse($3,,,[$3])
  test -n "[$]$1" && break
done
])dnl


AC_DEFUN(LYX_PROG_CXX_WORKS,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILER([class foo { int bar; }; int main(){return(0);}], ac_cv_prog_cxx_works, ac_cv_prog_cxx_cross)
AC_LANG_RESTORE
if test $ac_cv_prog_cxx_works = no; then
  CXX=
fi
cross_compiling=$ac_cv_prog_cxx_cross
])


AC_DEFUN(LYX_PROG_CXX,
[AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
AC_MSG_CHECKING([for a working C++ compiler])
LYX_SEARCH_PROG(CXX, $CCC g++ gcc c++ CC cxx xlC cc++, LYX_PROG_CXX_WORKS)

if test -z "$CXX" ; then
  AC_ERROR([Unable to find a working C++ compiler])
fi

AC_SUBST(CXX)
AC_MSG_RESULT($CXX)

AC_MSG_CHECKING([whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler])
AC_MSG_RESULT($cross_compiling)

AC_PROG_CXX_GNU

dnl We might want to get or shut warnings.
AC_ARG_WITH(warnings,
  [  --with-warnings         tell the compiler to display more warnings],,
  [ if test $lyx_devel_version = yes -o $lyx_prerelease = yes && test $ac_cv_prog_gxx = yes ; then
	with_warnings=yes;
    else
	with_warnings=no;
    fi;])
if test x$with_warnings = xyes ; then
  lyx_flags="$lyx_flags warnings"
  AC_DEFINE(WITH_WARNINGS, 1,
  [Define this if you want to see the warning directives put here and
   there by the developpers to get attention])
fi

# optimize less for development versions
if test $lyx_devel_version = yes -o $lyx_prerelease = yes ; then
  lyx_opt="-O"
else
  lyx_opt="-O2"
fi

# set the debug flags correctly.
if test $ac_cv_prog_gxx = yes; then
  GXX=yes
dnl Check whether -g works, even if CXXFLAGS is set, in case the package
dnl plays around with CXXFLAGS (such as to build both debugging and
dnl normal versions of a library), tasteless as that idea is.
  ac_test_CXXFLAGS="${CXXFLAGS+set}"
  ac_save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS=
dnl Check the version of g++
  gxx_version=`g++ --version`
  
  AC_PROG_CXX_G
  if test "$ac_test_CXXFLAGS" = set; then
    CXXFLAGS="$ac_save_CXXFLAGS"
  elif test $ac_cv_prog_cxx_g = yes; then
    case $gxx_version in
      2.95.1)  CXXFLAGS="-g $lyx_opt -fpermissive -fno-rtti";;
      2.95.*)  CXXFLAGS="-g $lyx_opt -fno-rtti -fno-exceptions";;
      2.96*)   CXXFLAGS="-g $lyx_opt -fno-rtti -fno-exceptions";;
      *2.91.*) CXXFLAGS="-g $lyx_opt -fno-rtti -fno-exceptions";;
      *)       CXXFLAGS="-g $lyx_opt -fno-rtti -fno-exceptions";;
    esac
  else
    CXXFLAGS="$lyx_opt"
  fi
  if test x$with_warnings = xyes ; then
    case $gxx_version in
	2.95.*) CXXFLAGS="$CXXFLAGS -Wall -W -Wconversion";;
	2.96*)  CXXFLAGS="$CXXFLAGS -Wall -W -Wconversion";;
	*)      CXXFLAGS="$CXXFLAGS -ansi -Wall -W -Wno-return-type";;
    esac
    if test $lyx_devel_version = yes ; then
	case $gxx_version in
	    2.95.*) ;;
	    2.96*) ;;
	    *2.91*) ;;
	    *) CXXFLAGS="$CXXFLAGS -pedantic";;
        esac
    fi
  fi
else
  GXX=
  test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
fi
])dnl


dnl Usage: LYX_CXX_RTTI : checks whether the C++ compiler
dnl   supports RTTI
AC_DEFUN(LYX_CXX_RTTI,[
### Check whether the compiler supports runtime type information
AC_CACHE_CHECK(whether the C++ compiler supports RTTI,lyx_cv_rtti,
 [AC_TRY_RUN([
class rtti {
public:
   virtual int tag() { return 0; }
};
class derived1 : public rtti {
public:
    int tag() { return 1; }
};
class derived2 : public rtti {
public:
    int tag() { return 2; }
};
int main() {
    derived1 * foo1 = new derived1();
    derived2 * foo2 = new derived2();
    rtti * bar = foo1;
    derived1 * bar1 = dynamic_cast<derived1 *>(bar);
    if (bar1 == 0)
	exit(1);
    bar = foo2;
    bar1 = dynamic_cast<derived1 *>(bar);
    if (bar1 != 0)
	exit(1);
    return 0;
}
],lyx_cv_rtti=yes,lyx_cv_rtti=no,lyx_cv_rtti=no)
])
if test x$lyx_cv_rtti = xyes ; then
  AC_DEFINE(HAVE_RTTI, 1, 
   [Define to 1 if your compiler supports runtime type information])
fi])


dnl Usage: LYX_CXX_EXPLICIT : checks whether the C++ compiler
dnl   understands the "explicit" directive.
AC_DEFUN(LYX_CXX_EXPLICIT,[
### Check whether the compiler understands the keyword `explicit'
AC_CACHE_CHECK(whether the C++ compiler understands explicit,lyx_cv_explicit,
 [AC_TRY_COMPILE([
class Expl {
public:
	explicit Expl() {};
};],,lyx_cv_explicit=yes,lyx_cv_explicit=no)
])
if test $lyx_cv_explicit = no ; then
  AC_DEFINE(explicit,[ ], 
   [Define to nothing if your compiler does not understand the
   'explicit' directive])
fi])


dnl Usage: LYX_CXX_STL_STACK : checks whether the C++ compiler
dnl   has a working stl stack template
AC_DEFUN(LYX_CXX_STL_STACK,[
AC_CACHE_CHECK(for broken STL stack template,lyx_cv_broken_stack,
 [AC_TRY_COMPILE([
#include <stack>
using std::stack;
],[
    stack<int> stakk;
    stakk.push(0);
],lyx_cv_broken_stack=no,lyx_cv_broken_stack=yes)
])
if test $lyx_cv_broken_stack = yes ; then
  AC_DEFINE(BROKEN_STL_STACK, 1, 
   [Define if you have the STL from libg++ 2.7.x, where stack<> is not defined
   correctly])
fi])


dnl Usage: LYX_STD_COUNT : checks wherer the C++ library have a conforming
dnl    count template, if not the old HP version is assumed.
AC_DEFUN(LYX_STD_COUNT,[
AC_CACHE_CHECK(for conforming std::count,lyx_cv_std_count,
 [AC_TRY_COMPILE([
#include <string>
#include <algorithm>
using std::string;
using std::count;
int countChar(string const & a, char const c)
{
        return count(a.begin(), a.end(), c);
}
],[
    string a("hello");
    int i = countChar(a, 'l');
],lyx_cv_std_count=yes,lyx_cv_std_count=no)
])
if test $lyx_cv_std_count = yes ; then
    AC_DEFINE(HAVE_STD_COUNT, 1,
    [Define if you have a conforming std::count template, otherwise HP version of count template is assumed.])
fi])


dnl Usage: LYX_CXX_STL_MODERN_STREAMS : checks whether the C++ compiler
dnl   supports modern STL streams
AC_DEFUN(LYX_CXX_STL_MODERN_STREAMS,[
AC_CACHE_CHECK(for modern STL streams,lyx_cv_modern_streams,
 [AC_TRY_COMPILE([
#include <iostream>
],[
 std::streambuf * test = std::cerr.rdbuf();
 test->pubsync();
],lyx_cv_modern_streams=yes,lyx_cv_modern_streams=no)
])
if test $lyx_cv_modern_streams = yes ; then
  AC_DEFINE(MODERN_STL_STREAMS, 1, 
   [Define if you have modern standard-compliant STL streams])
fi])


dnl Usage: LYX_CXX_STL_STRING : checks whether the C++ compiler
dnl   has a working stl string container, the check is really stupid
dnl   and could need some improvement.
AC_DEFUN(LYX_CXX_STL_STRING,[
    AC_REQUIRE([LYX_PROG_CXX])
    AC_MSG_CHECKING(whether the included std::string should be used)
    AC_ARG_WITH(included-string,
       [  --with-included-string  use LyX string class instead of STL string],
       [with_included_string=$withval],
       [AC_TRY_COMPILE([
	    #include <string>
	    using std::string;
	],[
	    string a("hello there");
	    a.clear();
	    a = "hey";
	    a.erase();
	],[
	    with_included_string=no
	],[
	    with_included_string=yes
	    
	])
    ])
    if test x$with_included_string = xyes ; then
	AC_DEFINE(USE_INCLUDED_STRING, 1,
	    [Define to use the lyxstring class bundled with LyX.])
	    lyx_flags="$lyx_flags included-string"
    fi
    AM_CONDITIONAL(USE_LYXSTRING, test x$with_included_string = xyes)
    AC_MSG_RESULT([$with_included_string])
])


dnl Usage: LYX_REGEX : checks if the header regex.h is available
dnl   if it is not available the automake variable USE_REGEX will be
dnl   defined and the regex.h and regex.c that we provide will be used.
AC_DEFUN(LYX_REGEX,[
    AC_CHECK_HEADERS(regex.h, lyx_regex=no, lyx_regex=yes)
    AM_CONDITIONAL(USE_REGEX, test x$lyx_regex = xyes)
])


dnl LYX_CXX_MUTABLE
AC_DEFUN(LYX_CXX_MUTABLE, [
AC_REQUIRE([LYX_PROG_CXX])
AC_MSG_CHECKING(if C++ compiler supports mutable)
AC_TRY_COMPILE(
[
class k {       
        mutable char *c;
public:
   void foo() const { c=0; }
};
],[
],[
  ac_mutable=yes
  AC_DEFINE(HAVE_MUTABLE, 1, 
   [Defined if you compiler supports 'mutable'.])
],[
  ac_mutable=no
]) 
AC_MSG_RESULT([$ac_mutable])
])


dnl LYX_CXX_PARTIAL
AC_DEFUN(LYX_CXX_PARTIAL, [
AC_REQUIRE([LYX_PROG_CXX])
AC_MSG_CHECKING(if C++ compiler supports partial specialization)
AC_TRY_COMPILE(
[
template<class T, class K>
class k {       
public:
};
template<class T> class k<void,T> { };
],[
  k<float, float> b;
  k<void,void> a;
],[
  ac_partial_specialization=yes
  AC_DEFINE(HAVE_PARTIAL_SPECIALIZATION, 1, 
   [Defined if your compiler supports partial specialization.])
],[
  ac_partial_specialization=no
]) 
AC_MSG_RESULT([$ac_partial_specialization])
])


dnl Usage: LYX_CXX_NAMESPACES : checks whether the C++ compiler
dnl   has a correct namespace handling and define CXX_WORKING_NAMESPACES 
dnl   if true. This macro does not do a thourough test, but it should be 
dnl   good enough to suit our needs.
AC_DEFUN(LYX_CXX_NAMESPACES,[
AC_CACHE_CHECK(for correct namespaces support,lyx_cv_cxx_namespace,
 [AC_TRY_COMPILE([
  namespace foo {
    int bar;
  }
],[
        foo::bar = 0;
	return 0;
],lyx_cv_cxx_namespace=yes,lyx_cv_cxx_namespace=no)
])
if test $lyx_cv_cxx_namespace = yes ; then
  AC_DEFINE(CXX_WORKING_NAMESPACES, 1, 
   [Define if your C++ compiler has correct support for namespaces])
fi])


dnl Usage: LYX_CXX_CHEADERS : checks whether the C++ compiler
dnl   provides wrappers for C headers and use our alternate version otherwise.
AC_DEFUN(LYX_CXX_CHEADERS,[
AC_CACHE_CHECK(for C headers wrappers,lyx_cv_cxx_cheaders,
 [AC_TRY_CPP([
#include <clocale>
#include <cctype>
#include <cerrno>
#include <cmath>
#include <csignal>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>],[lyx_cv_cxx_cheaders=yes],[lyx_cv_cxx_cheaders=no])])
if test $lyx_cv_cxx_cheaders = no ; then
  LYX_ADD_INC_DIR(lyx_cppflags,\$(top_srcdir)/src/cheaders)  
fi])


dnl Usage LYX_PATH_XPM: Checks for xpm library and header
AC_DEFUN(LYX_PATH_XPM,[
### Check for Xpm library
AC_CHECK_LIB(Xpm, XpmCreateBufferFromImage,LYX_LIBS="-lXpm $LYX_LIBS",
        [LYX_LIB_ERROR(libXpm,Xpm)], $LYX_LIBS)

### Check for Xpm headers
lyx_cv_xpm_h_location="<xpm.h>"
AC_CHECK_HEADER(X11/xpm.h,[
  ac_cv_header_xpm_h=yes
  lyx_cv_xpm_h_location="<X11/xpm.h>"],[
AC_CHECK_HEADER(xpm.h,[],[
LYX_LIB_ERROR(xpm.h,Xpm)])])
AC_DEFINE_UNQUOTED(XPM_H_LOCATION,$lyx_cv_xpm_h_location)

### Test for the header version
if test $ac_cv_header_xpm_h = yes; then
  AC_CACHE_CHECK([xpm header version],lyx_cv_xpmversion,
  [ cat > conftest.$ac_ext <<EOF
#line __oline__ "configure"
#include "confdefs.h"

#include XPM_H_LOCATION
"%%%"lyx_cv_xpmv=XpmVersion;lyx_cv_xpmr=XpmRevision"%%%"
EOF
    eval `(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
      grep '^"%%%"'  2>/dev/null | \
      sed -e 's/^"%%%"\(.*\)"%%%"/\1/' -e 's/ //g'`
    case "$lyx_cv_xpmr" in
changequote(,)
     [0-9]) lyxxpmr_alpha=`echo $lyx_cv_xpmr |tr 123456789 abcdefghi`
            lyxxpmv_alpha=" (aka 3.$lyx_cv_xpmv$lyxxpmr_alpha)";;
changequote([,])
         *) ;;
    esac
    lyx_cv_xpmversion="$lyx_cv_xpmv.$lyx_cv_xpmr$lyxxpmv_alpha"
    rm -f conftest*])
  case "$lyx_cv_xpmr" in 
changequote(,)
        [789]|[0-9][0-9]*) ;;
changequote([,])
        *) LYX_WARNING([Version $lyx_cv_xpmversion of the Xpm library is a bit old. 
   If you experience strange crashes with LyX, try to upgrade 
   to at least version 4.7 (aka 3.4g).
   If you have installed a newer version of the library, check whether you
   have an old xpm.h header file in your include path.]);;
  esac
fi])


dnl Usage LYX_PATH_XFORMS: Checks for xforms library and flags
AC_DEFUN(LYX_PATH_XFORMS,[
### Check for xforms library
AC_CHECK_LIB(forms, fl_initialize, LYX_LIBS="-lforms $LYX_LIBS", 
  [AC_CHECK_LIB(xforms, fl_initialize, LYX_LIBS="-lxforms $LYX_LIBS", 
    [LYX_LIB_ERROR(libforms or libxforms,xforms)], $LYX_LIBS)], $LYX_LIBS) 

### Check for xforms headers
lyx_cv_forms_h_location="<forms.h>"
AC_CHECK_HEADER(X11/forms.h,[
  ac_cv_header_forms_h=yes
  lyx_cv_forms_h_location="<X11/forms.h>"],[
AC_CHECK_HEADER(forms.h,[],[
LYX_LIB_ERROR(forms.h,forms)])])
AC_DEFINE_UNQUOTED(FORMS_H_LOCATION,$lyx_cv_forms_h_location)
if test $ac_cv_header_forms_h = yes; then
  AC_CACHE_CHECK([xforms header version],lyx_cv_xfversion,
  [ cat > conftest.$ac_ext <<EOF
#line __oline__ "configure"
#include "confdefs.h"

#include FORMS_H_LOCATION
#if ! defined(FL_INCLUDE_VERSION)
"%%%"(unknown)"%%%"
#else
"%%%"FL_VERSION.FL_REVISION"%%%"
#endif
EOF
lyx_cv_xfversion=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
  grep '^"%%%"'  2>/dev/null | \
  sed -e 's/^"%%%"\(.*\)"%%%"/\1/' -e 's/ //g'`
rm -f conftest*])
case "$lyx_cv_xfversion" in 
  "(unknown)"|0.82|0.83|0.84|0.85) 
     LYX_ERROR(dnl
Version $lyx_cv_xfversion of xforms is not compatible with LyX. 
   This version of LyX works best with version 0.88[,] although it
   supports also versions 0.81[,] 0.86 and 0.87.) ;;
  0.81|0.86|0.87) 
     LYX_WARNING(dnl
While LyX is compatible with version $lyx_cv_xfversion of xforms[,] 
   it is recommended that you upgrade to version 0.88.) ;;
     0.88) ;;
     0.89) LYX_WARNING(dnl
LyX should work ok with version $lyx_cv_xfversion of xforms[,] but
it is an unproven version and might still have some bugs. If you
have problems[,] please use version 0.88 instead.) ;;
          *) LYX_WARNING(dnl
Version $lyx_cv_xfversion of xforms might not be compatible with LyX[,] 
   since it is newer than 0.88. You might have slight problems with it.);;
esac
fi])


dnl Usage: LYX_HPUX  Checks for HP-UX and update CXXFLAGS accordingly
AC_DEFUN(LYX_HPUX,
[#It seems that HPUX requires using -fpcc-struct-return with gcc.
AC_CACHE_CHECK(for HP-UX,ac_cv_hpux,[
os=`uname -s | tr '[A-Z]' '[a-z]'`
ac_cv_hpux=no
test "$os" = hp-ux && ac_cv_hpux=yes])
if test "$ac_cv_hpux" = yes; then
 test "x$GXX" = xyes && CXXFLAGS="$CXXFLAGS -fpcc-struct-return"
fi])


dnl Usage: LYX_SUNOS4 Checks for SunOS 4.x and sets the flag lyx_broken_headers
dnl   if necessary
AC_DEFUN(LYX_SUNOS4,
[#The headers are not correct under SunOS4
AC_CACHE_CHECK(for SunOS 4.x,ac_cv_sunos4,[
changequote(, ) dnl
os=`uname -a | sed -e 's/^\([^ ]*\) [^ ]* \([0-9]\)\..*/\1\2/'`
changequote([, ]) dnl
ac_cv_sunos4=no
test "$os" = SunOS4 && ac_cv_sunos4=yes])
if test "$ac_cv_sunos4" = yes; then
 test "x$GXX" = xyes && lyx_broken_headers=yes
fi])


dnl Usage: LYX_SCO Checks for SCO and sets the flag lyx_broken_headers
dnl   if necessary
AC_DEFUN(LYX_SCO,
[AC_CACHE_CHECK(for SCO 3.2v4,ac_cv_sco,[
ac_cv_sco=no
if test `uname -s` != "SCO_SV"; then
  lyx_machine_rel=`uname -m`:`uname -r`
  if test $lyx_machine_rel = i386:3.2 || test $lyx_machine_rel = i486:3.2;
  then
    if test -f /usr/options/cb.name; then
      ac_cv_sco=no
    elif /bin/uname -X 2>/dev/null >/dev/null ; then
      ac_cv_sco=yes
    fi
  fi
fi])
if test "$ac_cv_sco" = yes; then
 test "x$GXX" = xyes && lyx_broken_headers=yes
fi])

dnl Usage: LYX_FUNC_PUTENV_ARGTYPE
dnl Checks whether putenv() takes 'char const *' or 'char *' as
dnl argument. This is needed because Solaris 7 (wrongly?) uses 'char *', 
dnl while everybody else uses the former...
AC_DEFUN(LYX_FUNC_PUTENV_ARGTYPE,
[AC_MSG_CHECKING([type of argument for putenv()])
 AC_CACHE_VAL(lyx_cv_func_putenv_arg,dnl
  [AC_TRY_COMPILE(dnl
[#include <cstdlib>],
[char const * foo = "bar";
 putenv(foo);],dnl
   [lyx_cv_func_putenv_arg='char const *'],[lyx_cv_func_putenv_arg='char *'])])
 AC_MSG_RESULT($lyx_cv_func_putenv_arg)
 AC_DEFINE_UNQUOTED(PUTENV_TYPE_ARG,$lyx_cv_func_putenv_arg,dnl
   [Define to the type of the argument of putenv(). Needed on Solaris 7.])])


dnl Usage: LYX_WITH_DIR(dir-name,desc,dir-var-name,default-value, 
dnl                       [default-yes-value])  
dnl  Adds a --with-'dir-name' option (described by 'desc') and puts the 
dnl  resulting directory name in 'dir-var-name'.
AC_DEFUN(LYX_WITH_DIR,[
  AC_ARG_WITH($1,[  --with-$1        specify $2])
  AC_MSG_CHECKING([for $2])
  if test -z "$with_$3"; then
     AC_CACHE_VAL(lyx_cv_$3, lyx_cv_$3=$4)
  else
    test "x$with_$3" = xyes && with_$3=$5
    lyx_cv_$3="$with_$3"
  fi
  AC_MSG_RESULT($lyx_cv_$3)])


dnl Usage: LYX_LOOP_DIR(value,action)
dnl Executes action for values of variable `dir' in `values'. `values' can 
dnl use ":" as a separator.
AC_DEFUN(LYX_LOOP_DIR,[
IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
for dir in `eval "echo $1"`; do
  if test ! "$dir" = NONE; then
    test ! -d "$dir" && AC_ERROR([\"$dir\" is not a directory])
    $2
  fi
done
IFS=$ac_save_ifs
])


dnl Usage: LYX_ADD_LIB_DIR(var-name,dir) Adds a -L directive to variable 
dnl var-name. 
AC_DEFUN(LYX_ADD_LIB_DIR,[
$1="${$1} -L$2"
if test "`(uname) 2>/dev/null`" = SunOS &&
    uname -r | grep '^5' >/dev/null; then
  if test $ac_cv_prog_gxx = yes ; then 
    $1="${$1} -Wl[,]-R$2" 
  else
    $1="${$1} -R$2"
  fi
fi])


dnl Usage: LYX_ADD_INC_DIR(var-name,dir) Adds a -I directive to variable 
dnl var-name. 
AC_DEFUN(LYX_ADD_INC_DIR,[$1="${$1} -I$2 "])

### Check for a headers existence and location iff it exists
## This is supposed to be a generalised version of LYX_STL_STRING_FWD
## It almost works.  I've tried a few variations but they give errors
## of one sort or other: bad substitution or file not found etc.  The
## actual header _is_ found though and the cache variable is set however
## the reported setting (on screen) is equal to $ac_safe for some unknown
## reason.
AC_DEFUN(LYX_PATH_HEADER,
[ AC_CHECK_HEADER($1,[
  ac_tr_safe=PATH_`echo $ac_safe | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
  AC_CACHE_CHECK([path to $1],lyx_cv_path_$ac_safe,
  [ cat > conftest.$ac_ext <<EOF
#line __oline__ "configure"
#include "confdefs.h"

#include <$1>
EOF
lyx_cv_path_$ac_safe=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
  grep $1  2>/dev/null | \
  sed -e 's/.*\(".*$1"\).*/\1/' -e "1q"`
rm -f conftest*])
  AC_DEFINE_UNQUOTED(${ac_tr_safe},${lyx_cv_path_$ac_safe})])
])
### end of LYX_PATH_HEADER

### Check for stl_string_fwd.h existence and location if it exists
AC_DEFUN(LYX_STL_STRING_FWD,
[ AC_CHECK_HEADER(stl_string_fwd.h,[
  AC_CACHE_CHECK([path to stl_string_fwd.h],lyx_cv_path_stl_string_fwd_h,
  [ cat > conftest.$ac_ext <<EOF
#line __oline__ "configure"
#include "confdefs.h"

#include <stl_string_fwd.h>
EOF
lyx_cv_path_stl_string_fwd_h=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
  grep 'stl_string_fwd.h'  2>/dev/null | \
  sed -e 's/.*\(".*stl_string_fwd.h"\).*/\1/' -e "1q"`
rm -f conftest*])
  AC_DEFINE_UNQUOTED(STL_STRING_FWD_H_LOCATION,$lyx_cv_path_stl_string_fwd_h,
[define this to the location of stl_string_fwd.h to be used with #include,
  NOTE: Do not set it to <stl_string_fwd.h> as that will find the LyX
  	supplied version of the header.
  e.g. <../include/stl_string_fwd.h> or better yet use an absolute path])])
])


dnl AC_VALIDATE_CACHE_SYSTEM_TYPE[(cmd)]
dnl if the cache file is inconsistent with the current host,
dnl target and build system types, execute CMD or print a default
dnl error message.
AC_DEFUN(AC_VALIDATE_CACHE_SYSTEM_TYPE, [
    AC_REQUIRE([AC_CANONICAL_SYSTEM])
    AC_MSG_CHECKING([config.cache system type])
    if { test x"${ac_cv_host_system_type+set}" = x"set" &&
         test x"$ac_cv_host_system_type" != x"$host"; } ||
       { test x"${ac_cv_build_system_type+set}" = x"set" &&
         test x"$ac_cv_build_system_type" != x"$build"; } ||
       { test x"${ac_cv_target_system_type+set}" = x"set" &&
         test x"$ac_cv_target_system_type" != x"$target"; }; then
        AC_MSG_RESULT([different])
        ifelse($#, 1, [$1],
                [AC_MSG_ERROR(["you must remove config.cache and restart configure"])])
    else
        AC_MSG_RESULT([same])
    fi
    ac_cv_host_system_type="$host"
    ac_cv_build_system_type="$build"
    ac_cv_target_system_type="$target"
])

dnl We use this until autoconf fixes its version.
AC_DEFUN(LYX_FUNC_SELECT_ARGTYPES,
[AC_MSG_CHECKING([types of arguments for select()])
 AC_CACHE_VAL(ac_cv_func_select_arg234,dnl
 [AC_CACHE_VAL(ac_cv_func_select_arg1,dnl
  [AC_CACHE_VAL(ac_cv_func_select_arg5,dnl
   [for ac_cv_func_select_arg234 in 'fd_set *' 'int *' 'void *'; do
     for ac_cv_func_select_arg1 in 'int' 'size_t' 'unsigned long' 'unsigned'; do      for ac_cv_func_select_arg5 in 'struct timeval *' 'const struct timeval *'; do
       AC_TRY_COMPILE(dnl
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
extern int select ($ac_cv_func_select_arg1,$ac_cv_func_select_arg234,$ac_cv_func_select_arg234,$ac_cv_func_select_arg234,$ac_cv_func_select_arg5);],,dnl
        [ac_not_found=no ; break 3],ac_not_found=yes)
      done
     done
    done
   ])dnl AC_CACHE_VAL
  ])dnl AC_CACHE_VAL
 ])dnl AC_CACHE_VAL
 if test "$ac_not_found" = yes; then
  ac_cv_func_select_arg1=int 
  ac_cv_func_select_arg234='int *' 
  ac_cv_func_select_arg5='struct timeval *'
 fi
 AC_MSG_RESULT([$ac_cv_func_select_arg1,$ac_cv_func_select_arg234,$ac_cv_func_select_arg5])
 AC_DEFINE_UNQUOTED(SELECT_TYPE_ARG1,$ac_cv_func_select_arg1)
 AC_DEFINE_UNQUOTED(SELECT_TYPE_ARG234,($ac_cv_func_select_arg234))
 AC_DEFINE_UNQUOTED(SELECT_TYPE_ARG5,($ac_cv_func_select_arg5))
])

## libtool.m4 - Configure libtool for the target system. -*-Shell-script-*-
## Copyright (C) 1996-1999 Free Software Foundation, Inc.
## Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
##
## As a special exception to the GNU General Public License, if you
## distribute this file as part of a program that contains a
## configuration script generated by Autoconf, you may include it under
## the same distribution terms that you use for the rest of that program.

# serial 40 AC_PROG_LIBTOOL
AC_DEFUN(AC_PROG_LIBTOOL,
[AC_REQUIRE([AC_LIBTOOL_SETUP])dnl

# Save cache, so that ltconfig can load it
AC_CACHE_SAVE

# Actually configure libtool.  ac_aux_dir is where install-sh is found.
CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" \
DLLTOOL="$DLLTOOL" AS="$AS" OBJDUMP="$OBJDUMP" \
${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $lt_target \
|| AC_MSG_ERROR([libtool configure failed])

# Reload cache, that may have been modified by ltconfig
AC_CACHE_LOAD

# This can be used to rebuild libtool when needed
LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh"

# Always use our own libtool.
LIBTOOL='$(SHELL) $(top_builddir)/libtool'
AC_SUBST(LIBTOOL)dnl

# Redirect the config.log output again, so that the ltconfig log is not
# clobbered by the next message.
exec 5>>./config.log
])

AC_DEFUN(AC_LIBTOOL_SETUP,
[AC_PREREQ(2.13)dnl
AC_REQUIRE([AC_ENABLE_SHARED])dnl
AC_REQUIRE([AC_ENABLE_STATIC])dnl
AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_CANONICAL_BUILD])dnl
AC_REQUIRE([AC_PROG_RANLIB])dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_LD])dnl
AC_REQUIRE([AC_PROG_NM])dnl
AC_REQUIRE([AC_PROG_LN_S])dnl
dnl

case "$target" in
NONE) lt_target="$host" ;;
*) lt_target="$target" ;;
esac

# Check for any special flags to pass to ltconfig.
libtool_flags="--cache-file=$cache_file"
test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"
test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],
[libtool_flags="$libtool_flags --enable-dlopen"])
ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
[libtool_flags="$libtool_flags --enable-win32-dll"])
AC_ARG_ENABLE(libtool-lock,
  [  --disable-libtool-lock  avoid locking (might break parallel builds)])
test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"

# Some flags need to be propagated to the compiler or linker for good
# libtool support.
case "$lt_target" in
*-*-irix6*)
  # Find out which ABI we are using.
  echo '[#]line __oline__ "configure"' > conftest.$ac_ext
  if AC_TRY_EVAL(ac_compile); then
    case "`/usr/bin/file conftest.o`" in
    *32-bit*)
      LD="${LD-ld} -32"
      ;;
    *N32*)
      LD="${LD-ld} -n32"
      ;;
    *64-bit*)
      LD="${LD-ld} -64"
      ;;
    esac
  fi
  rm -rf conftest*
  ;;

*-*-sco3.2v5*)
  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
  SAVE_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -belf"
  AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
    [AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])])
  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
    CFLAGS="$SAVE_CFLAGS"
  fi
  ;;

ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
[*-*-cygwin* | *-*-mingw*)
  AC_CHECK_TOOL(DLLTOOL, dlltool, false)
  AC_CHECK_TOOL(AS, as, false)
  AC_CHECK_TOOL(OBJDUMP, objdump, false)
  ;;
])
esac
])

# AC_LIBTOOL_DLOPEN - enable checks for dlopen support
AC_DEFUN(AC_LIBTOOL_DLOPEN, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])

# AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
AC_DEFUN(AC_LIBTOOL_WIN32_DLL, [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])

# AC_ENABLE_SHARED - implement the --enable-shared flag
# Usage: AC_ENABLE_SHARED[(DEFAULT)]
#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
#   `yes'.
AC_DEFUN(AC_ENABLE_SHARED, [dnl
define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(shared,
changequote(<<, >>)dnl
<<  --enable-shared[=PKGS]  build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
changequote([, ])dnl
[p=${PACKAGE-default}
case "$enableval" in
yes) enable_shared=yes ;;
no) enable_shared=no ;;
*)
  enable_shared=no
  # Look at the argument we got.  We use all the common list separators.
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
  for pkg in $enableval; do
    if test "X$pkg" = "X$p"; then
      enable_shared=yes
    fi
  done
  IFS="$ac_save_ifs"
  ;;
esac],
enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
])

# AC_DISABLE_SHARED - set the default shared flag to --disable-shared
AC_DEFUN(AC_DISABLE_SHARED, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
AC_ENABLE_SHARED(no)])

# AC_ENABLE_STATIC - implement the --enable-static flag
# Usage: AC_ENABLE_STATIC[(DEFAULT)]
#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
#   `yes'.
AC_DEFUN(AC_ENABLE_STATIC, [dnl
define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(static,
changequote(<<, >>)dnl
<<  --enable-static[=PKGS]  build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
changequote([, ])dnl
[p=${PACKAGE-default}
case "$enableval" in
yes) enable_static=yes ;;
no) enable_static=no ;;
*)
  enable_static=no
  # Look at the argument we got.  We use all the common list separators.
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
  for pkg in $enableval; do
    if test "X$pkg" = "X$p"; then
      enable_static=yes
    fi
  done
  IFS="$ac_save_ifs"
  ;;
esac],
enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
])

# AC_DISABLE_STATIC - set the default static flag to --disable-static
AC_DEFUN(AC_DISABLE_STATIC, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
AC_ENABLE_STATIC(no)])


# AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
# Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
#   `yes'.
AC_DEFUN(AC_ENABLE_FAST_INSTALL, [dnl
define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(fast-install,
changequote(<<, >>)dnl
<<  --enable-fast-install[=PKGS]  optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
changequote([, ])dnl
[p=${PACKAGE-default}
case "$enableval" in
yes) enable_fast_install=yes ;;
no) enable_fast_install=no ;;
*)
  enable_fast_install=no
  # Look at the argument we got.  We use all the common list separators.
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
  for pkg in $enableval; do
    if test "X$pkg" = "X$p"; then
      enable_fast_install=yes
    fi
  done
  IFS="$ac_save_ifs"
  ;;
esac],
enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
])

# AC_ENABLE_FAST_INSTALL - set the default to --disable-fast-install
AC_DEFUN(AC_DISABLE_FAST_INSTALL, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
AC_ENABLE_FAST_INSTALL(no)])

# AC_PROG_LD - find the path to the GNU or non-GNU linker
AC_DEFUN(AC_PROG_LD,
[AC_ARG_WITH(gnu-ld,
[  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_CANONICAL_BUILD])dnl
ac_prog=ld
if test "$ac_cv_prog_gcc" = yes; then
  # Check if gcc -print-prog-name=ld gives a path.
  AC_MSG_CHECKING([for ld used by GCC])
  ac_prog=`($CC -print-prog-name=ld) 2>&5`
  case "$ac_prog" in
    # Accept absolute paths.
changequote(,)dnl
    [\\/]* | [A-Za-z]:[\\/]*)
      re_direlt='/[^/][^/]*/\.\./'
changequote([,])dnl
      # Canonicalize the path of ld
      ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
	ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
      done
      test -z "$LD" && LD="$ac_prog"
      ;;
  "")
    # If it fails, then pretend we aren't using GCC.
    ac_prog=ld
    ;;
  *)
    # If it is relative, then search for the first ld in PATH.
    with_gnu_ld=unknown
    ;;
  esac
elif test "$with_gnu_ld" = yes; then
  AC_MSG_CHECKING([for GNU ld])
else
  AC_MSG_CHECKING([for non-GNU ld])
fi
AC_CACHE_VAL(ac_cv_path_LD,
[if test -z "$LD"; then
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
  for ac_dir in $PATH; do
    test -z "$ac_dir" && ac_dir=.
    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
      ac_cv_path_LD="$ac_dir/$ac_prog"
      # Check to see if the program is GNU ld.  I'd rather use --version,
      # but apparently some GNU ld's only accept -v.
      # Break only if it was the GNU/non-GNU ld that we prefer.
      if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
	test "$with_gnu_ld" != no && break
      else
	test "$with_gnu_ld" != yes && break
      fi
    fi
  done
  IFS="$ac_save_ifs"
else
  ac_cv_path_LD="$LD" # Let the user override the test with a path.
fi])
LD="$ac_cv_path_LD"
if test -n "$LD"; then
  AC_MSG_RESULT($LD)
else
  AC_MSG_RESULT(no)
fi
test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
AC_PROG_LD_GNU
])

AC_DEFUN(AC_PROG_LD_GNU,
[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
  ac_cv_prog_gnu_ld=yes
else
  ac_cv_prog_gnu_ld=no
fi])
])

# AC_PROG_NM - find the path to a BSD-compatible name lister
AC_DEFUN(AC_PROG_NM,
[AC_MSG_CHECKING([for BSD-compatible nm])
AC_CACHE_VAL(ac_cv_path_NM,
[if test -n "$NM"; then
  # Let the user override the test.
  ac_cv_path_NM="$NM"
else
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
  for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/nm || test -f $ac_dir/nm$ac_exeext ; then
      # Check to see if the nm accepts a BSD-compat flag.
      # Adding the `sed 1q' prevents false positives on HP-UX, which says:
      #   nm: unknown option "B" ignored
      if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
	ac_cv_path_NM="$ac_dir/nm -B"
	break
      elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
	ac_cv_path_NM="$ac_dir/nm -p"
	break
      else
	ac_cv_path_NM=${ac_cv_path_NM="$ac_dir/nm"} # keep the first match, but
	continue # so that we can try to find one that supports BSD flags
      fi
    fi
  done
  IFS="$ac_save_ifs"
  test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
fi])
NM="$ac_cv_path_NM"
AC_MSG_RESULT([$NM])
])

# AC_CHECK_LIBM - check for math library
AC_DEFUN(AC_CHECK_LIBM,
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
LIBM=
case "$lt_target" in
*-*-beos* | *-*-cygwin*)
  # These system don't have libm
  ;;
*-ncr-sysv4.3*)
  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
  AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
  ;;
*)
  AC_CHECK_LIB(m, main, LIBM="-lm")
  ;;
esac
])

# AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
# the libltdl convenience library, adds --enable-ltdl-convenience to
# the configure arguments.  Note that LIBLTDL is not AC_SUBSTed, nor
# is AC_CONFIG_SUBDIRS called.  If DIR is not provided, it is assumed
# to be `${top_builddir}/libltdl'.  Make sure you start DIR with
# '${top_builddir}/' (note the single quotes!) if your package is not
# flat, and, if you're not using automake, define top_builddir as
# appropriate in the Makefiles.
AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
  case "$enable_ltdl_convenience" in
  no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
  "") enable_ltdl_convenience=yes
      ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
  esac
  LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdlc.la
  INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
])

# AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
# the libltdl installable library, and adds --enable-ltdl-install to
# the configure arguments.  Note that LIBLTDL is not AC_SUBSTed, nor
# is AC_CONFIG_SUBDIRS called.  If DIR is not provided, it is assumed
# to be `${top_builddir}/libltdl'.  Make sure you start DIR with
# '${top_builddir}/' (note the single quotes!) if your package is not
# flat, and, if you're not using automake, define top_builddir as
# appropriate in the Makefiles.
# In the future, this macro may have to be called after AC_PROG_LIBTOOL.
AC_DEFUN(AC_LIBLTDL_INSTALLABLE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
  AC_CHECK_LIB(ltdl, main,
  [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
  [if test x"$enable_ltdl_install" = xno; then
     AC_MSG_WARN([libltdl not installed, but installation disabled])
   else
     enable_ltdl_install=yes
   fi
  ])
  if test x"$enable_ltdl_install" = x"yes"; then
    ac_configure_args="$ac_configure_args --enable-ltdl-install"
    LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdl.la
    INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
  else
    ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
    LIBLTDL="-lltdl"
    INCLTDL=
  fi
])

dnl old names
AC_DEFUN(AM_PROG_LIBTOOL, [indir([AC_PROG_LIBTOOL])])dnl
AC_DEFUN(AM_ENABLE_SHARED, [indir([AC_ENABLE_SHARED], $@)])dnl
AC_DEFUN(AM_ENABLE_STATIC, [indir([AC_ENABLE_STATIC], $@)])dnl
AC_DEFUN(AM_DISABLE_SHARED, [indir([AC_DISABLE_SHARED], $@)])dnl
AC_DEFUN(AM_DISABLE_STATIC, [indir([AC_DISABLE_STATIC], $@)])dnl
AC_DEFUN(AM_PROG_LD, [indir([AC_PROG_LD])])dnl
AC_DEFUN(AM_PROG_NM, [indir([AC_PROG_NM])])dnl

dnl This is just to silence aclocal about the macro not being used
ifelse([AC_DISABLE_FAST_INSTALL])dnl
# Macro to add for using GNU gettext.
# Ulrich Drepper <drepper@cygnus.com>, 1995.
#
# This file can be copied and used freely without restrictions.  It can
# be used in projects which are not available under the GNU Public License
# but which still want to provide support for the GNU gettext functionality.
# Please note that the actual code is *not* freely available.

# serial 5

AC_DEFUN(AM_WITH_NLS,
  [AC_MSG_CHECKING([whether NLS is requested])
    dnl Default is enabled NLS
    AC_ARG_ENABLE(nls,
      [  --disable-nls           do not use Native Language Support],
      USE_NLS=$enableval, USE_NLS=yes)
    AC_MSG_RESULT($USE_NLS)
    AC_SUBST(USE_NLS)

    USE_INCLUDED_LIBINTL=no

    dnl If we use NLS figure out what method
    if test "$USE_NLS" = "yes"; then
      AC_DEFINE(ENABLE_NLS)
      AC_MSG_CHECKING([whether included gettext is requested])
      AC_ARG_WITH(included-gettext,
        [  --with-included-gettext use the GNU gettext library included here],
        nls_cv_force_use_gnu_gettext=$withval,
        nls_cv_force_use_gnu_gettext=no)
      AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)

      nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
      if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
        dnl User does not insist on using GNU NLS library.  Figure out what
        dnl to use.  If gettext or catgets are available (in this order) we
        dnl use this.  Else we have to fall back to GNU NLS library.
	dnl catgets is only used if permitted by option --with-catgets.
	nls_cv_header_intl=
	nls_cv_header_libgt=
	CATOBJEXT=NONE

	AC_CHECK_HEADER(libintl.h,
	  [AC_CACHE_CHECK([for gettext in libc], gt_cv_func_gettext_libc,
	    [AC_TRY_LINK([#include <libintl.h>], [return (int) gettext ("")],
	       gt_cv_func_gettext_libc=yes, gt_cv_func_gettext_libc=no)])

	   if test "$gt_cv_func_gettext_libc" != "yes"; then
	     AC_CHECK_LIB(intl, bindtextdomain,
	       [AC_CACHE_CHECK([for gettext in libintl],
		 gt_cv_func_gettext_libintl,
		 [AC_CHECK_LIB(intl, gettext,
		  gt_cv_func_gettext_libintl=yes,
		  gt_cv_func_gettext_libintl=no)],
		 gt_cv_func_gettext_libintl=no)])
	   fi

	   if test "$gt_cv_func_gettext_libc" = "yes" \
	      || test "$gt_cv_func_gettext_libintl" = "yes"; then
	      AC_DEFINE(HAVE_GETTEXT)
	      AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
		[test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)dnl
	      if test "$MSGFMT" != "no"; then
		AC_CHECK_FUNCS(dcgettext)
		AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
		AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
		  [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
		AC_TRY_LINK(, [extern int _nl_msg_cat_cntr;
			       return _nl_msg_cat_cntr],
		  [CATOBJEXT=.gmo
		   DATADIRNAME=share],
		  [CATOBJEXT=.mo
		   DATADIRNAME=lib])
		INSTOBJEXT=.mo
	      fi
	    fi
	])

        if test "$CATOBJEXT" = "NONE"; then
	  AC_MSG_CHECKING([whether catgets can be used])
	  AC_ARG_WITH(catgets,
	    [  --with-catgets          use catgets functions if available],
	    nls_cv_use_catgets=$withval, nls_cv_use_catgets=no)
	  AC_MSG_RESULT($nls_cv_use_catgets)

	  if test "$nls_cv_use_catgets" = "yes"; then
	    dnl No gettext in C library.  Try catgets next.
	    AC_CHECK_LIB(i, main)
	    AC_CHECK_FUNC(catgets,
	      [AC_DEFINE(HAVE_CATGETS)
	       INTLOBJS="\$(CATOBJS)"
	       AC_PATH_PROG(GENCAT, gencat, no)dnl
	       if test "$GENCAT" != "no"; then
		 AC_PATH_PROG(GMSGFMT, gmsgfmt, no)
		 if test "$GMSGFMT" = "no"; then
		   AM_PATH_PROG_WITH_TEST(GMSGFMT, msgfmt,
		    [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)
		 fi
		 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
		   [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
		 USE_INCLUDED_LIBINTL=yes
		 CATOBJEXT=.cat
		 INSTOBJEXT=.cat
		 DATADIRNAME=lib
		 INTLDEPS='$(top_builddir)/intl/libintl.a'
		 INTLLIBS=$INTLDEPS
		 LIBS=`echo $LIBS | sed -e 's/-lintl//'`
		 nls_cv_header_intl=intl/libintl.h
		 nls_cv_header_libgt=intl/libgettext.h
	       fi])
	  fi
        fi

        if test "$CATOBJEXT" = "NONE"; then
	  dnl Neither gettext nor catgets in included in the C library.
	  dnl Fall back on GNU gettext library.
	  nls_cv_use_gnu_gettext=yes
        fi
      fi

      if test "$nls_cv_use_gnu_gettext" = "yes"; then
        dnl Mark actions used to generate GNU NLS library.
        INTLOBJS="\$(GETTOBJS)"
        AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
	  [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], msgfmt)
        AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
        AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
	  [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
        AC_SUBST(MSGFMT)
	USE_INCLUDED_LIBINTL=yes
        CATOBJEXT=.gmo
        INSTOBJEXT=.mo
        DATADIRNAME=share
	INTLDEPS='$(top_builddir)/intl/libintl.a'
	INTLLIBS=$INTLDEPS
	LIBS=`echo $LIBS | sed -e 's/-lintl//'`
        nls_cv_header_intl=intl/libintl.h
        nls_cv_header_libgt=intl/libgettext.h
      fi

      dnl Test whether we really found GNU xgettext.
      if test "$XGETTEXT" != ":"; then
	dnl If it is no GNU xgettext we define it as : so that the
	dnl Makefiles still can work.
	if $XGETTEXT --omit-header /dev/null 2> /dev/null; then
	  : ;
	else
	  AC_MSG_RESULT(
	    [found xgettext program is not GNU xgettext; ignore it])
	  XGETTEXT=":"
	fi
      fi

      # We need to process the po/ directory.
      POSUB=po
    else
      DATADIRNAME=share
      nls_cv_header_intl=intl/libintl.h
      nls_cv_header_libgt=intl/libgettext.h
    fi
    AC_LINK_FILES($nls_cv_header_libgt, $nls_cv_header_intl)
    AC_OUTPUT_COMMANDS(
     [case "$CONFIG_FILES" in *po/Makefile.in*)
        sed -e "/POTFILES =/r po/POTFILES" po/Makefile.in > po/Makefile
      esac])


    # If this is used in GNU gettext we have to set USE_NLS to `yes'
    # because some of the sources are only built for this goal.
    if test "$PACKAGE" = gettext; then
      USE_NLS=yes
      USE_INCLUDED_LIBINTL=yes
    fi

    dnl These rules are solely for the distribution goal.  While doing this
    dnl we only have to keep exactly one list of the available catalogs
    dnl in configure.in.
    for lang in $ALL_LINGUAS; do
      GMOFILES="$GMOFILES $lang.gmo"
      POFILES="$POFILES $lang.po"
    done

    dnl Make all variables we use known to autoconf.
    AC_SUBST(USE_INCLUDED_LIBINTL)
    AC_SUBST(CATALOGS)
    AC_SUBST(CATOBJEXT)
    AC_SUBST(DATADIRNAME)
    AC_SUBST(GMOFILES)
    AC_SUBST(INSTOBJEXT)
    AC_SUBST(INTLDEPS)
    AC_SUBST(INTLLIBS)
    AC_SUBST(INTLOBJS)
    AC_SUBST(POFILES)
    AC_SUBST(POSUB)
  ])

AC_DEFUN(AM_GNU_GETTEXT,
  [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
   AC_REQUIRE([AC_PROG_CC])dnl
   AC_REQUIRE([AC_PROG_RANLIB])dnl
   AC_REQUIRE([AC_ISC_POSIX])dnl
   AC_REQUIRE([AC_HEADER_STDC])dnl
   AC_REQUIRE([AC_C_CONST])dnl
   AC_REQUIRE([AC_C_INLINE])dnl
   AC_REQUIRE([AC_TYPE_OFF_T])dnl
   AC_REQUIRE([AC_TYPE_SIZE_T])dnl
   AC_REQUIRE([AC_FUNC_ALLOCA])dnl
   AC_REQUIRE([AC_FUNC_MMAP])dnl

   AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h string.h \
unistd.h sys/param.h])
   AC_CHECK_FUNCS([getcwd munmap putenv setenv setlocale strchr strcasecmp \
strdup __argz_count __argz_stringify __argz_next])

   if test "${ac_cv_func_stpcpy+set}" != "set"; then
     AC_CHECK_FUNCS(stpcpy)
   fi
   if test "${ac_cv_func_stpcpy}" = "yes"; then
     AC_DEFINE(HAVE_STPCPY)
   fi

   AM_LC_MESSAGES
   AM_WITH_NLS

   if test "x$CATOBJEXT" != "x"; then
     if test "x$ALL_LINGUAS" = "x"; then
       LINGUAS=
     else
       AC_MSG_CHECKING(for catalogs to be installed)
       NEW_LINGUAS=
dnl ============== Fix is here! ======================
dnl Some sh do not like substitution in bounds of for loops
dnl    for lang in ${LINGUAS=$ALL_LINGUAS}; do
    tmplinguas=${LINGUAS=$ALL_LINGUAS}
    for lang in ${tmplinguas}; do
dnl ==== end of fix
         case "$ALL_LINGUAS" in
          *$lang*) NEW_LINGUAS="$NEW_LINGUAS $lang" ;;
         esac
       done
       LINGUAS=$NEW_LINGUAS
       AC_MSG_RESULT($LINGUAS)
     fi

     dnl Construct list of names of catalog files to be constructed.
     if test -n "$LINGUAS"; then
       for lang in $LINGUAS; do CATALOGS="$CATALOGS $lang$CATOBJEXT"; done
     fi
   fi

   dnl The reference to <locale.h> in the installed <libintl.h> file
   dnl must be resolved because we cannot expect the users of this
   dnl to define HAVE_LOCALE_H.
   if test $ac_cv_header_locale_h = yes; then
     INCLUDE_LOCALE_H="#include <locale.h>"
   else
     INCLUDE_LOCALE_H="\
/* The system does not provide the header <locale.h>.  Take care yourself.  */"
   fi
   AC_SUBST(INCLUDE_LOCALE_H)

   dnl Determine which catalog format we have (if any is needed)
   dnl For now we know about two different formats:
   dnl   Linux libc-5 and the normal X/Open format
   test -d intl || mkdir intl
   if test "$CATOBJEXT" = ".cat"; then
     AC_CHECK_HEADER(linux/version.h, msgformat=linux, msgformat=xopen)

     dnl Transform the SED scripts while copying because some dumb SEDs
     dnl cannot handle comments.
     sed -e '/^#/d' $srcdir/intl/$msgformat-msg.sed > intl/po2msg.sed
   fi
   dnl po2tbl.sed is always needed.
   sed -e '/^#.*[^\\]$/d' -e '/^#$/d' \
     $srcdir/intl/po2tbl.sed.in > intl/po2tbl.sed

   dnl In the intl/Makefile.in we have a special dependency which makes
   dnl only sense for gettext.  We comment this out for non-gettext
   dnl packages.
   if test "$PACKAGE" = "gettext"; then
     GT_NO="#NO#"
     GT_YES=
   else
     GT_NO=
     GT_YES="#YES#"
   fi
   AC_SUBST(GT_NO)
   AC_SUBST(GT_YES)

   dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
   dnl find the mkinstalldirs script in another subdir but ($top_srcdir).
   dnl Try to locate is.
   MKINSTALLDIRS=
   if test -n "$ac_aux_dir"; then
     MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
   fi
   if test -z "$MKINSTALLDIRS"; then
     MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
   fi
   AC_SUBST(MKINSTALLDIRS)

   dnl *** For now the libtool support in intl/Makefile is not for real.
   l=
   AC_SUBST(l)

   dnl Generate list of files to be processed by xgettext which will
   dnl be included in po/Makefile.
   test -d po || mkdir po
   if test "x$srcdir" != "x."; then
     if test "x`echo $srcdir | sed 's@/.*@@'`" = "x"; then
       posrcprefix="$srcdir/"
     else
       posrcprefix="../$srcdir/"
     fi
   else
     posrcprefix="../"
   fi
   rm -f po/POTFILES
   sed -e "/^#/d" -e "/^\$/d" -e "s,.*,	$posrcprefix& \\\\," -e "\$s/\(.*\) \\\\/\1/" \
	< $srcdir/po/POTFILES.in > po/POTFILES
  ])
# Check whether LC_MESSAGES is available in <locale.h>.
# Ulrich Drepper <drepper@cygnus.com>, 1995.
#
# This file can be copied and used freely without restrictions.  It can
# be used in projects which are not available under the GNU Public License
# but which still want to provide support for the GNU gettext functionality.
# Please note that the actual code is *not* freely available.

# serial 1

AC_DEFUN(AM_LC_MESSAGES,
  [if test $ac_cv_header_locale_h = yes; then
    AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
      [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
       am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
    if test $am_cv_val_LC_MESSAGES = yes; then
      AC_DEFINE(HAVE_LC_MESSAGES)
    fi
  fi])
# Search path for a program which passes the given test.
# Ulrich Drepper <drepper@cygnus.com>, 1996.
#
# This file can be copied and used freely without restrictions.  It can
# be used in projects which are not available under the GNU Public License
# but which still want to provide support for the GNU gettext functionality.
# Please note that the actual code is *not* freely available.

# serial 1

dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
dnl   TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
AC_DEFUN(AM_PATH_PROG_WITH_TEST,
[# Extract the first word of "$2", so it can be a program name with args.
set dummy $2; ac_word=[$]2
AC_MSG_CHECKING([for $ac_word])
AC_CACHE_VAL(ac_cv_path_$1,
[case "[$]$1" in
  /*)
  ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
  ;;
  *)
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
  for ac_dir in ifelse([$5], , $PATH, [$5]); do
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/$ac_word; then
      if [$3]; then
	ac_cv_path_$1="$ac_dir/$ac_word"
	break
      fi
    fi
  done
  IFS="$ac_save_ifs"
dnl If no 4th arg is given, leave the cache variable unset,
dnl so AC_PATH_PROGS will keep looking.
ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
])dnl
  ;;
esac])dnl
$1="$ac_cv_path_$1"
if test -n "[$]$1"; then
  AC_MSG_RESULT([$]$1)
else
  AC_MSG_RESULT(no)
fi
AC_SUBST($1)dnl
])