dnl Process this file with autoconf to produce configure.

AC_INIT(src/subcommand.h)
AM_INIT_AUTOMAKE(libgui, 0.0)
AM_CONFIG_HEADER(config.h)
AM_MAINTAINER_MODE
AC_CANONICAL_HOST
AC_PROG_CC
AC_EXEEXT
AC_OBJEXT
AC_ARG_ENABLE(install-libgui, \
  [  --enable-install-libgui Install libgui.a and library header files])
AM_CONDITIONAL(CROSS_COMPILING, test x$cross_compiling = xyes)
AM_CONDITIONAL(INSTALL_LIBGUI, test x$enable_install_libgui = xyes)
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_CHECK_TOOL(AR, ar, :)
AC_CHECK_PROG(ITCL_SH, itcl_sh, itcl_sh,
	[\$\$here/\$(top_builddir)/../itcl/itcl/unix/itcl_sh\$(EXEEXT)])

AC_FUNC_ALLOCA
AC_HAVE_HEADERS(stddef.h stdlib.h getopt.h unistd.h fcntl.h sys/file.h sys/wait.h string.h strings.h)
AC_CHECK_FUNCS(raise)

AC_ARG_ENABLE(ide, [  --enable-ide            Enable IDE support],
[case "${enableval}" in
  yes) ide=yes ;;
  no)  ide=no ;;
  *)   AC_MSG_ERROR(bad value ${enableval} for enable-ide option) ;;
esac],
[ide=no])
AM_CONDITIONAL(IDE_ENABLED, test x$ide = xyes)
if test x$ide = xyes; then
  AC_DEFINE(IDE_ENABLED)
fi

# If we have random, assume we have srandom.  If we have drand48,
# assume we have srand48.  If we have rand, assume we have srand.
AC_CHECK_FUNCS(random drand48 rand, break)

dnl Tcl ensures that strncasecmp is provided everywhere.  But in some
dnl situations we might need to declare it.  We check for that case
dnl here.
AC_EGREP_CPP(strncasecmp, [#include <string.h>],
  AC_DEFINE(HAVE_STRNCASECMP_DECL))

# Tcl8.1 requires writable strings for gcc

if test "$GCC" = "yes"; then
   LIBGUI_CFLAGS=-fwritable-strings
else
   LIBGUI_CFLAGS=
fi

AC_CACHE_CHECK([for cygwin32], ide_cv_os_cygwin32,
[AC_EGREP_CPP(lose, [
#ifdef __CYGWIN32__
lose
#endif],[ide_cv_os_cygwin32=yes],[ide_cv_os_cygwin32=no])])
ac_win_build="no"
if test x$ide_cv_os_cygwin32 = xyes; then
  ac_win_build="yes"
fi

case "${host}" in
*-*-cygwin*)
        touch ac$$.c
        if ${CC} -c -mwin32 ac$$.c >/dev/null 2>&1; then
            case "$LIBGUI_CFLAGS" in
                *-mwin32*) ;;
                *) LIBGUI_CFLAGS="-mwin32 $LIBGUI_CFLAGS" ;;
            esac
        fi
        rm -f ac$$.o ac$$.c
        ;;
esac
case "${host}" in
*-*-cygwin*)
	LIBGUI_CFLAGS="-DWIN32 $LIBGUI_CFLAGS" ;;
esac
AC_SUBST(LIBGUI_CFLAGS) 

tmp="`cd $srcdir/library; pwd`"
if test x"$ac_cv_prog_CC" = xcl ; then
  tmp2="`cygpath --windows $tmp`"
  LIBGUI_LIBRARY_DIR="`echo $tmp2 | sed -e s#\\\\\\\\#/#g`"
else
  LIBGUI_LIBRARY_DIR=$tmp
fi
AC_SUBST(LIBGUI_LIBRARY_DIR)

# Find the init.tcl file.

AC_MSG_CHECKING(for init.tcl)
AC_CACHE_VAL(ac_cv_c_tcl_libdir,[
dnl currently, only check the source tree
if test -f $srcdir/../tcl/library/init.tcl ; then
  ac_cv_c_tcl_libdir=`cd $srcdir/../tcl/library; pwd`
elif test -f $srcdir/../tcl8.1/library/init.tcl; then
  ac_cv_c_tcl_libdir=`cd $srcdir/../tcl8.1/library; pwd`
fi
])
AC_MSG_RESULT(${ac_cv_c_tcl_libdir})

if test x"$ac_cv_prog_CC" = xcl; then
  tmp2="`cygpath --windows $ac_cv_c_tcl_libdir`"
  TCL_LIBRARY="`echo $tmp2 | sed -e s#\\\\\\\\#/#g`"
else
  TCL_LIBRARY=$ac_cv_c_tcl_libdir
fi
AC_SUBST(TCL_LIBRARY)

# Check for Tcl and Tk.
CYG_AC_PATH_TCLCONFIG
CYG_AC_LOAD_TCLCONFIG
CYG_AC_PATH_TKCONFIG
CYG_AC_LOAD_TKCONFIG
CYG_AC_PATH_TCLH
# FIXME: consider only doing this if --with-x given.
CYG_AC_PATH_TKH

AC_SUBST(TCL_DEFS)
AC_SUBST(TK_DEFS)
AC_SUBST(TCLHDIR)
AC_SUBST(TKHDIR)
AC_SUBST(TK_XINCLUDES)
AC_SUBST(TCL_LIBS)
AC_SUBST(TK_BUILD_LIB_SPEC)
AC_SUBST(TCL_BUILD_LIB_SPEC)
AC_SUBST(TK_LIBS)

AM_CONDITIONAL(TCL_SHARED, test x$TCL_SHARED_BUILD = x1)

AC_SUBST(RPATH_ENVVAR)

AC_OUTPUT([Makefile library/Makefile src/Makefile])