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dnl This file is an input file used by the GNU "autoconf" program to
dnl generate the file "configure", which in turn produces the files
dnl "Makefile.config" and "labltklink".
dnl If you don't have autoconf installed, simply use the "configure"
dnl script.
dnl Usage:
dnl $ autoconf configure.in > configure
dnl edit site.config
dnl $ ./configure -with-config=site.config
dnl NOTE: autoconf 2.4 CHOKES on this. Use a newer version (e.g 2.7).
dnl This is the file that must exist in srcdir
AC_INIT(Widgets.src)
dnl Rather use gcc
AC_PROG_CC
AC_HAVE_HEADERS(unistd.h limits.h)
dnl Defaults for variables, overriden in site.config
LIBEXT=
TKNAME=tk
dnl We need locations in the first place
AC_ARG_WITH(config,
[ --with-config=Site specific locations of various software. Check the INSTALL instructions],
if test -f $withval; then
SITECFG=`dirname $withval`/`basename $withval`
. $SITECFG
else
AC_MSG_ERROR($withval does not exist)
fi,
AC_MSG_ERROR(
You must provide a file giving the location of various software using the option --with-config=file. Check the INSTALL instructions))
if test -z "$OCAMLLIBDIR"; then
AC_MSG_ERROR("OCAMLLIBDIR is still undefined. Edit $SITECFG")
fi
if test -z "$INSTALLDIR"; then
AC_MSG_ERROR("INSTALLDIR is still undefined. Edit $SITECFG")
fi
if test -z "$INSTALLBINDIR"; then
AC_MSG_ERROR("INSTALLBINDIR is still undefined. Edit $SITECFG")
fi
dnl builtin rule for X
AC_PATH_XTRA
WITH_X="$X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
CPPFLAGS="$CPPFLAGS $X_CFLAGS"
dnl builtin rule for ranlib
AC_PROG_RANLIB
dnl where is cpp
AC_PATH_PROG(CPPPROG, cpp, /lib/cpp, $PATH)
dnl As soon as we use this, we must have install-sh available. Damn.
dnl AC_CANONICAL_HOST
LIBS="-lm"
### We probably need more
AC_CHECK_LIB(dl, dlopen, LIBS="-ldl $LIBS")
### Check for Tcl7.5(7.6,8.0) and Tk4.1(4.2)
AC_CHECKING(Tcl and Tk includes and libraries)
AC_CHECK_HEADERS(tcl.h,,
AC_MSG_ERROR(Can't find tcl.h. Check the CPPFLAGS variable in $SITECFG))
AC_CHECK_HEADERS(tk.h,,
AC_MSG_ERROR(Can't find tk.h. Check the CPPFLAGS variable in $SITECFG))
AC_MSG_CHECKING(Tcl version)
### Check Tcl version
tclver=no
AC_EGREP_CPP(^VERSION=.*7\.5, [#include <tcl.h>
VERSION=TCL_VERSION], tclver=7.5)
if test $tclver = no; then
AC_EGREP_CPP(^VERSION=.*7\.6, [#include <tcl.h>
VERSION=TCL_VERSION], tclver=7.6)
fi
if test $tclver = no; then
AC_EGREP_CPP(^VERSION=.*8\.0, [#include <tcl.h>
VERSION=TCL_VERSION], tclver=8.0)
fi
if test $tclver = no; then
AC_EGREP_CPP(^VERSION=.*8\.1, [#include <tcl.h>
VERSION=TCL_VERSION], tclver=8.1)
fi
if test $tclver = no; then
AC_EGREP_CPP(^VERSION=.*8\.2, [#include <tcl.h>
VERSION=TCL_VERSION], tclver=8.2)
fi
AC_MSG_RESULT($tclver)
case $tclver in
7.5) tclmaj=7 tclmin=5 tkmaj=4 tkmin=1 ;;
7.6) tclmaj=7 tclmin=6 tkmaj=4 tkmin=2 ;;
8.0) tclmaj=8 tclmin=0 tkmaj=8 tkmin=0 ;;
8.1) tclmaj=8 tclmin=1 tkmaj=8 tkmin=1 ;;
8.2) tclmaj=8 tclmin=2 tkmaj=8 tkmin=2 ;;
esac
if test x$tkmaj = x8; then
CPPFLAGS="-DTK80 $CPPFLAGS"
fi
tcllib="tcl$tclmaj$tclmin$LIBEXT"
tcllibd="tcl$tclmaj.$tclmin$LIBEXT"
dnl We use Tcl_DoOneEvent to be sure to get version >= 7.5
AC_CHECK_LIB($tcllibd, Tcl_DoOneEvent,
LIBS="-l$tcllibd $LIBS" tkver=$tkmaj.$tkmin,
AC_CHECK_LIB($tcllib, Tcl_DoOneEvent,
LIBS="-l$tcllib $LIBS" tkver=$tkmaj$tkmin,
AC_CHECK_LIB(tcl$LIBEXT, Tcl_DoOneEvent, LIBS="-ltcl$LIBEXT $LIBS",
AC_MSG_ERROR(Can't find a tcl library.
Check config.log to see what happened, and try setting LDFLAGS in $SITECFG),
$X_EXTRA_LIBS),
$X_EXTRA_LIBS),
$X_EXTRA_LIBS)
tklib="${TKNAME}${tkver}${LIBEXT}"
dnl We use Tk_SetGrid to be sure to get version >= 4.1
AC_CHECK_LIB($tklib, Tk_SetGrid, LIBS="-l$tklib $LIBS",
AC_MSG_ERROR(Can't find a tk library.
Check config.log to see what happened, and try setting LDFLAGS in $SITECFG),
$WITH_X -lm)
dnl This is the file that we produce
dnl These are the variables that are substituted in Makefile.config.in to
dnl produce Makefile.config
dnl The OCAML library
AC_SUBST(OCAMLLIBDIR)
dnl Install dir
AC_SUBST(INSTALLDIR)
AC_SUBST(INSTALLBINDIR)
dnl Info collected about X
dnl The includes and options
dnl AC_SUBST(X_CFLAGS)
dnl The libraries
dnl special trick to substitute -L and -l ...
dnl All options (for cc compilation)
AC_SUBST(WITH_X)
dnl X link options
AC_SUBST(X_LIBS)
THE_X_LIBS="$X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
AC_SUBST(THE_X_LIBS)
dnl Tcl/Tk
dnl CPPFLAGS, LIBS and LDFLAGS are substituted by default
dnl Info collected about ranlib
AC_SUBST(RANLIB)
AC_SUBST(CPPPROG)
dnl LIBS is subsituted by default
AC_SUBST(OCAMLSRCDIR)
dnl Files to generate
AC_OUTPUT(Makefile.config labltk labltklink labltkopt)
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