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autoconf: Add information about the --x-* options to --help output

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Try to tell the user that the --x-* options are only used when the X
libraries can't be found by pkg-config.
This commit is contained in:
Dan Nicholson 2008-07-01 09:03:15 -07:00
parent e97ab72b59
commit 99803a4ec9
1 changed files with 7 additions and 1 deletions
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8
configure.ac
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@ -456,7 +456,7 @@ esac
dnl
dnl Find out if X is available. The variable have_x is set if libX11 is
dnl to mimic AC_PATH_XTRA.
dnl found to mimic AC_PATH_XTRA.
dnl
if test -n "$PKG_CONFIG"; then
AC_MSG_CHECKING([pkg-config files for X11 are available])
@ -475,6 +475,12 @@ if test "$x11_pkgconfig" = no; then
AC_PATH_XTRA
fi
dnl Try to tell the user that the --x-* options are only used when
dnl pkg-config is not available. This must be right after AC_PATH_XTRA.
m4_divert_once([HELP_BEGIN],
[These options are only used when the X libraries cannot be found by the
pkg-config utility.])
dnl We need X for xlib and dri, so bomb now if it's not found
case "$mesa_driver" in
xlib|dri)