path: root/macros/gnome-guile-checks.m4

dnl
dnl GNOME_CHECK_GUILE (failflag)
dnl
dnl if failflag is "fail" then GNOME_CHECK_GUILE will abort if guile is not found.
dnl

AC_DEFUN([GNOME_CHECK_GUILE],
[
    saved_ldflags="$LDFLAGS"
    saved_cppflags="$CPPFLAGS"
    LDFLAGS="$LDFLAGS $GNOME_LIBDIR"

    AC_CHECK_LIB(qthreads,main,[
        QTTHREADS_LIB="-lqthreads"
    ],[
        AC_CHECK_LIB(qt, qt_null, QTTHREADS_LIB="-lqt")
    ],$LIBS)
    AC_SUBST(QTTHREADS_LIB)

    AC_CHECK_LIB(termcap,main,TERMCAP_LIB="-ltermcap")
    AC_CHECK_LIB(readline,main,READLINE_LIB="-lreadline",,$TERMCAP_LIB)

    AC_SUBST(TERMCAP_LIB)
    AC_SUBST(READLINE_LIB)

    if test "x$cross_compiling" = "xyes" ; then
      name_build_guile="$target_alias-build-guile"
    else
      name_build_guile="build-guile"
    fi

    AC_CHECK_PROG(BUILD_GUILE, $name_build_guile, yes, no)

    if test "x$BUILD_GUILE" = "xyes"; then
        AC_MSG_CHECKING(whether build-guile works)
        if test x`build-guile --version >/dev/null 2>&1 || \
                echo no` = xno; then
            BUILD_GUILE=no
        fi
        AC_MSG_RESULT($BUILD_GUILE)
    fi

    AC_CHECK_LIB(m, sin)

    if test "x$BUILD_GUILE" = "xyes"; then
        AC_MSG_CHECKING(for guile libraries)
        GUILE_LIBS="-L`build-guile info libdir` `build-guile link`"
        AC_MSG_RESULT($GUILE_LIBS)
        AC_MSG_CHECKING(for guile headers)
        GUILE_INCS="-I`build-guile info includedir`"
        AC_MSG_RESULT($GUILE_INCS)
    else
        GUILE_LIBS="$GNOME_LIBDIR"
        GUILE_INCS="$GNOME_INCLUDEDIR"
        AC_CHECK_LIB(rx, main, GUILE_LIBS="-lrx $GUILE_LIBS")
        AC_CHECK_LIB(qt, main, GUILE_LIBS="-lqt $GUILE_LIBS")
        AC_CHECK_LIB(dl, dlopen, GUILE_LIBS="-ldl $GUILE_LIBS")
        GUILE_LIBS="-lguile $GUILE_LIBS $QTTHREADS_LIB $READLINE_LIB $TERMCAP_LIB"
    fi

    AC_SUBST(GUILE_LIBS)
    AC_SUBST(GUILE_INCS)

    LDFLAGS="$saved_ldflags $GUILE_LIBS"
    CPPFLAGS="$saved_cppflags $GUILE_INCS"

    AC_MSG_CHECKING(whether guile works)
    AC_TRY_LINK([
        #include <libguile.h>
        #include <guile/gh.h>
    ],[
        gh_eval_str("(newline)");
        scm_boot_guile(0,NULL,NULL,NULL);
    ],[
        ac_cv_guile_found=yes
        AC_DEFINE(HAVE_GUILE)
    ],[
        ac_cv_guile_found=no
    ])
    AC_MSG_RESULT($ac_cv_guile_found)

    if test x$ac_cv_guile_found = xno ; then
        if test x$1 = xfail ; then
          AC_MSG_ERROR(Can not find Guile 1.2 on this system)
        else
          AC_MSG_WARN(Can not find Guile 1.2 on this system)
        fi
        ac_cv_guile_found=no
    fi

    LDFLAGS="$saved_ldflags"
    CPPFLAGS="$saved_cppflags"

    AC_SUBST(GUILE_LIBS)
    AM_CONDITIONAL(GUILE, test x$ac_cv_guile_found = xyes)
])