aclocal.m4

A GNOME panel applet that displays the CPU + memory load as a bubbling liquid. 一个Gnome面板程序

	AC_SUBST(LIBGTOP_SERVER_VERSION)
	AC_SUBST(LIBGTOP_INTERFACE_AGE)
	AC_SUBST(LIBGTOP_BINARY_AGE)
	AC_SUBST(LIBGTOP_BINDIR)
	AC_SUBST(LIBGTOP_SERVER)

	dnl Get the cflags and libraries from the libgtop-config script
	dnl
	AC_ARG_WITH(libgtop,
	[  --with-libgtop=PFX      Prefix where LIBGTOP is installed (optional)],
	libgtop_config_prefix="$withval", libgtop_config_prefix="")
	AC_ARG_WITH(libgtop-exec,
	[  --with-libgtop-exec=PFX Exec prefix where LIBGTOP is installed (optional)],
	libgtop_config_exec_prefix="$withval", libgtop_config_exec_prefix="")

	if test x$libgtop_config_exec_prefix != x ; then
	  libgtop_config_args="$libgtop_config_args --exec-prefix=$libgtop_config_exec_prefix"
	  if test x${LIBGTOP_CONFIG+set} != xset ; then
	    LIBGTOP_CONFIG=$libgtop_config_exec_prefix/bin/libgtop-config
	  fi
	fi
	if test x$libgtop_config_prefix != x ; then
	  libgtop_config_args="$libgtop_config_args --prefix=$libgtop_config_prefix"
	  if test x${LIBGTOP_CONFIG+set} != xset ; then
	    LIBGTOP_CONFIG=$libgtop_config_prefix/bin/libgtop-config
	  fi
	fi

	AC_PATH_PROG(LIBGTOP_CONFIG, libgtop-config, no)
	dnl IMPORTANT NOTICE:
	dnl   If you increase this number here, this means that *ALL*
	dnl   modules will require the new version, even if they explicitly
	dnl   give a lower number in their `configure.in' !!!
	real_min_libgtop_version=1.0.0
	min_libgtop_version=ifelse([$1], ,$real_min_libgtop_version,$1)
	dnl I know, the following code looks really ugly, but if you want
	dnl to make changes, please test it with a brain-dead /bin/sh and
	dnl with a brain-dead /bin/test (not all shells/tests support the
	dnl `<' operator to compare strings, that's why I convert everything
	dnl into numbers and test them).
	min_libgtop_major=`echo $min_libgtop_version | \
	  sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
	min_libgtop_minor=`echo $min_libgtop_version | \
	  sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
	min_libgtop_micro=`echo $min_libgtop_version | \
	  sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
	test x$min_libgtop_micro = x && min_libgtop_micro=0
	real_min_libgtop_major=`echo $real_min_libgtop_version | \
	  sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
	real_min_libgtop_minor=`echo $real_min_libgtop_version | \
	  sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
	real_min_libgtop_micro=`echo $real_min_libgtop_version | \
	  sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
	test x$real_min_libgtop_micro = x && real_min_libgtop_micro=0
	dnl You cannot require a version less then $real_min_libgtop_version,
	dnl so you don't need to update each `configure.in' when it's increased.
	if test $real_min_libgtop_major -gt $min_libgtop_major ; then
	  min_libgtop_major=$real_min_libgtop_major
	  min_libgtop_minor=$real_min_libgtop_minor
	  min_libgtop_micro=$real_min_libgtop_micro
	elif test $real_min_libgtop_major = $min_libgtop_major ; then
	  if test $real_min_libgtop_minor -gt $min_libgtop_minor ; then
	    min_libgtop_minor=$real_min_libgtop_minor
	    min_libgtop_micro=$real_min_libgtop_micro
	  elif test $real_min_libgtop_minor = $min_libgtop_minor ; then
	    if test $real_min_libgtop_micro -gt $min_libgtop_micro ; then
	      min_libgtop_micro=$real_min_libgtop_micro
	    fi
	  fi
	fi
	min_libgtop_version="$min_libgtop_major.$min_libgtop_minor.$min_libgtop_micro"
	AC_MSG_CHECKING(for libgtop - version >= $min_libgtop_version)
	no_libgtop=""
	if test "$LIBGTOP_CONFIG" = "no" ; then
	  no_libgtop=yes
	else
	  configfile=`$LIBGTOP_CONFIG --config`
	  libgtop_major_version=`$LIBGTOP_CONFIG --version | \
	    sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
	  libgtop_minor_version=`$LIBGTOP_CONFIG --version | \
	    sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
	  libgtop_micro_version=`$LIBGTOP_CONFIG --version | \
	    sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
	  if test $libgtop_major_version != $min_libgtop_major ; then 
	    no_libgtop=mismatch
	  else 
 	    test $libgtop_minor_version -lt $min_libgtop_minor && no_libgtop=yes
	    if test $libgtop_minor_version = $min_libgtop_minor ; then
	      test $libgtop_micro_version -lt $min_libgtop_micro && no_libgtop=yes
	    fi
	  fi
	  . $configfile
	fi
	if test x$no_libgtop = x ; then
	  AC_DEFINE(HAVE_LIBGTOP)
	  AC_DEFINE_UNQUOTED(LIBGTOP_VERSION, "$LIBGTOP_VERSION")
	  AC_DEFINE_UNQUOTED(LIBGTOP_VERSION_CODE, $LIBGTOP_VERSION_CODE)
	  AC_DEFINE_UNQUOTED(LIBGTOP_MAJOR_VERSION, $LIBGTOP_MAJOR_VERSION)
	  AC_DEFINE_UNQUOTED(LIBGTOP_MINOR_VERSION, $LIBGTOP_MINOR_VERSION)
	  AC_DEFINE_UNQUOTED(LIBGTOP_MICRO_VERSION, $LIBGTOP_MICRO_VERSION)
	  AC_DEFINE_UNQUOTED(LIBGTOP_SERVER_VERSION, $LIBGTOP_SERVER_VERSION)
	  AC_MSG_RESULT(yes)
	  dnl Note that an empty true branch is not valid sh syntax.
	  ifelse([$2], [], :, [$2])
	else
	  AC_MSG_RESULT(no)
	  if test "$no_libgtop"x = mismatchx; then
	    AC_MSG_ERROR(LibGTop major version mismatch $libgtop_major_version != $min_libgtop_major)
	  fi
	  if test "x$3" = "xfail"; then
	    AC_MSG_ERROR(LibGTop >= $min_libgtop_version not found)
	  else
	    AC_MSG_WARN(LibGTop >= $min_libgtop_version not found)
	  fi
	fi

	AM_CONDITIONAL(HAVE_LIBGTOP, test x$no_libgtop != xyes)
])

AC_DEFUN([GNOME_INIT_LIBGTOP],[
	GNOME_LIBGTOP_HOOK($1,[ifelse([$3], [], :, [$3])],$2)
])

dnl
dnl GNOME_LIBGTOP_DOCU
dnl
dnl checks whether the documentation of LibGTop is installed
dnl

AC_DEFUN([GNOME_LIBGTOP_DOCU],
[
	AC_REQUIRE([GNOME_LIBGTOP_HOOK])

	helpdir="$LIBGTOP_DATADIR/gnome/help/libgtop"

	AC_MSG_CHECKING(whether you have the LibGTop Documentation)

	if test -f "$helpdir/C/topic.dat" ; then
	  have_libgtop_docu=yes
	  AC_DEFINE(HAVE_LIBGTOP_DOCU)
	else
	  have_libgtop_docu=no
	fi

	AC_MSG_RESULT($have_libgtop_docu)

	AM_CONDITIONAL(HAVE_LIBGTOP_DOCU, test x$have_libgtop_docu = xyes)
])


dnl GNOME_COMPILE_WARNINGS
dnl Turn on many useful compiler warnings
dnl For now, only works on GCC
AC_DEFUN([GNOME_COMPILE_WARNINGS],[
  AC_ARG_ENABLE(compile-warnings, 
    [  --enable-compile-warnings=[no/minimum/yes]	Turn on compiler warnings.],,enable_compile_warnings=minimum)

  AC_MSG_CHECKING(what warning flags to pass to the C compiler)
  warnCFLAGS=
  if test "x$GCC" != xyes; then
    enable_compile_warnings=no
  fi

  if test "x$enable_compile_warnings" != "xno"; then
    if test "x$GCC" = "xyes"; then
      case " $CFLAGS " in
      *[\ \	]-Wall[\ \	]*) ;;
      *) warnCFLAGS="-Wall -Wunused" ;;
      esac

      ## -W is not all that useful.  And it cannot be controlled
      ## with individual -Wno-xxx flags, unlike -Wall
      if test "x$enable_compile_warnings" = "xyes"; then
	warnCFLAGS="$warnCFLAGS -Wmissing-prototypes -Wmissing-declarations"
      fi
    fi
  fi
  AC_MSG_RESULT($warnCFLAGS)

  AC_ARG_ENABLE(iso-c,
    [  --enable-iso-c          Try to warn if code is not ISO C ],,
    enable_iso_c=no)

  AC_MSG_CHECKING(what language compliance flags to pass to the C compiler)
  complCFLAGS=
  if test "x$enable_iso_c" != "xno"; then
    if test "x$GCC" = "xyes"; then
      case " $CFLAGS " in
      *[\ \	]-ansi[\ \	]*) ;;
      *) complCFLAGS="$complCFLAGS -ansi" ;;
      esac

      case " $CFLAGS " in
      *[\ \	]-pedantic[\ \	]*) ;;
      *) complCFLAGS="$complCFLAGS -pedantic" ;;
      esac
    fi
  fi
  AC_MSG_RESULT($complCFLAGS)
  if test "x$cflags_set" != "xyes"; then
    CFLAGS="$CFLAGS $warnCFLAGS $complCFLAGS"
    cflags_set=yes
    AC_SUBST(cflags_set)
  fi
])

dnl For C++, do basically the same thing.

AC_DEFUN([GNOME_CXX_WARNINGS],[
  AC_ARG_ENABLE(cxx-warnings, 
    [  --enable-cxx-warnings=[no/minimum/yes]	Turn on compiler warnings.],,enable_cxx_warnings=minimum)

  AC_MSG_CHECKING(what warning flags to pass to the C++ compiler)
  warnCXXFLAGS=
  if test "x$GCC" != xyes; then
    enable_compile_warnings=no
  fi
  if test "x$enable_cxx_warnings" != "xno"; then
    if test "x$GCC" = "xyes"; then
      case " $CXXFLAGS " in
      *[\ \	]-Wall[\ \	]*) ;;
      *) warnCXXFLAGS="-Wall -Wno-unused" ;;
      esac

      ## -W is not all that useful.  And it cannot be controlled
      ## with individual -Wno-xxx flags, unlike -Wall
      if test "x$enable_cxx_warnings" = "xyes"; then
	warnCXXFLAGS="$warnCXXFLAGS -Wmissing-prototypes -Wmissing-declarations -Wshadow -Woverloaded-virtual"
      fi
    fi
  fi
  AC_MSG_RESULT($warnCXXFLAGS)

   AC_ARG_ENABLE(iso-cxx,
     [  --enable-iso-cxx          Try to warn if code is not ISO C++ ],,
     enable_iso_cxx=no)

   AC_MSG_CHECKING(what language compliance flags to pass to the C++ compiler)
   complCXXFLAGS=
   if test "x$enable_iso_cxx" != "xno"; then
     if test "x$GCC" = "xyes"; then
      case " $CXXFLAGS " in
      *[\ \	]-ansi[\ \	]*) ;;
      *) complCXXFLAGS="$complCXXFLAGS -ansi" ;;
      esac

      case " $CXXFLAGS " in
      *[\ \	]-pedantic[\ \	]*) ;;
      *) complCXXFLAGS="$complCXXFLAGS -pedantic" ;;
      esac
     fi
   fi
  AC_MSG_RESULT($complCXXFLAGS)
  if test "x$cxxflags_set" != "xyes"; then
    CXXFLAGS="$CXXFLAGS $warnCXXFLAGS $complCXXFLAGS"
    cxxflags_set=yes
    AC_SUBST(cxxflags_set)
  fi
])

dnl GNOME_X_CHECKS
dnl
dnl Basic X11 related checks for X11.  At the end, the following will be
dnl defined/changed:
dnl   GTK_{CFLAGS,LIBS}      From AM_PATH_GTK
dnl   CPPFLAGS		     Will include $X_CFLAGS
dnl   GNOME_HAVE_SM	     `true' or `false' depending on whether session
dnl                          management is available.  It is available if
dnl                          both -lSM and X11/SM/SMlib.h exist.  (Some
dnl                          Solaris boxes have the library but not the header)
dnl   XPM_LIBS               -lXpm if Xpm library is present, otherwise ""
dnl
dnl The following configure cache variables are defined (but not used):
dnl   gnome_cv_passdown_{x_libs,X_LIBS,X_CFLAGS}
dnl
AC_DEFUN([GNOME_X_CHECKS],
[
	AM_PATH_GTK(1.2.0,,AC_MSG_ERROR(GTK not installed, or gtk-config not in path))
	dnl Hope that GTK_CFLAGS have only -I and -D.  Otherwise, we could
	dnl   test -z "$x_includes" || CPPFLAGS="$CPPFLAGS -I$x_includes"
	dnl
	dnl Use CPPFLAGS instead of CFLAGS because AC_CHECK_HEADERS uses
	dnl CPPFLAGS, not CFLAGS
        CPPFLAGS="$CPPFLAGS $GTK_CFLAGS"

        saved_ldflags="$LDFLAGS"
        LDFLAGS="$LDFLAGS $GTK_LIBS"

	gnome_cv_passdown_x_libs="$GTK_LIBS"
	gnome_cv_passdown_X_LIBS="$GTK_LIBS"
	gnome_cv_passdown_X_CFLAGS="$GTK_CFLAGS"
	gnome_cv_passdown_GTK_LIBS="$GTK_LIBS"

        LDFLAGS="$saved_ldflags $GTK_LIBS"

dnl We are requiring GTK >= 1.1.1, which means this will be fine anyhow.
	USE_DEVGTK=true

dnl	AC_MSG_CHECKING([whether to use features from (unstable) GTK+ 1.1.x])
dnl	AC_EGREP_CPP(answer_affirmatively,
dnl	[#include <gtk/gtkfeatures.h>
dnl	#ifdef GTK_HAVE_FEATURES_1_1_0
dnl	   answer_affirmatively
dnl	#endif
dnl	], dev_gtk=yes, dev_gtk=no)
dnl	if test "$dev_gtk" = "yes"; then
dnl	   USE_DEVGTK=true
dnl	fi
dnl	AC_MSG_RESULT("$dev_gtk")

	GNOME_HAVE_SM=true
	case "$GTK_LIBS" in
	 *-lSM*)
	    dnl Already found it.
	    ;;
	 *)
	    dnl Assume that if we have -lSM then we also have -lICE.
	    AC_CHECK_LIB(SM, SmcSaveYourselfDone,
	        [GTK_LIBS="-lSM -lICE $GTK_LIBS"],GNOME_HAVE_SM=false,
		$x_libs -lICE)
	    ;;
	esac

	if test "$GNOME_HAVE_SM" = true; then
	   AC_CHECK_HEADERS(X11/SM/SMlib.h,,GNOME_HAVE_SM=false)
	fi

	if test "$GNOME_HAVE_SM" = true; then
	   AC_DEFINE(HAVE_LIBSM)
	fi

	XPM_LIBS=""
	AC_CHECK_LIB(Xpm, XpmFreeXpmImage, [XPM_LIBS="-lXpm"], , $x_libs)
	AC_SUBST(XPM_LIBS)

	AC_REQUIRE([GNOME_PTHREAD_CHECK])
        LDFLAGS="$saved_ldflags"

	AC_PROVIDE([GNOME_X_CHECKS])
])

# Configure paths for GTK+
# Owen Taylor     97-11-3

dnl AM_PATH_GTK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS
dnl
AC_DEFUN(AM_PATH_GTK,
[dnl 
dnl Get the cflags and libraries from the gtk-config script
dnl
AC_ARG_WITH(gtk-prefix,[  --with-gtk-prefix=PFX   Prefix where GTK is installed (optional)],
            gtk_config_prefix="$withval", gtk_config_prefix="")
AC_ARG_WITH(gtk-exec-prefix,[  --with-gtk-exec-prefix=PFX Exec prefix where GTK is installed (optional)],
            gtk_config_exec_prefix="$withval", gtk_config_exec_prefix="")
AC_ARG_ENABLE(gtktest, [  --disable-gtktest       Do not try to compile and run a test GTK program],
		    , enable_gtktest=yes)

  for module in . $4
  do
      case "$module" in
         gthread) 
             gtk_config_args="$gtk_config_args gthread"
         ;;
      esac
  done

  if test x$gtk_config_exec_prefix != x ; then
     gtk_config_args="$gtk_config_args --exec-prefix=$gtk_config_exec_prefix"
     if test x${GTK_CONFIG+set} != xset ; then
        GTK_CONFIG=$gtk_config_exec_prefix/bin/gtk-config