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We don't build xmkmf so any values returned from it are going to be wrong.
Using any paths in /usr/ for x headers/libs is a bad idea when cross compiling.
This patch removes them to stop any confusion.
RP - 20071115
--- /tmp/libs.m4 2009-06-02 13:15:54.000000000 +0200
+++ autoconf-2.63/lib/autoconf/libs.m4 2009-06-02 13:17:51.000000000 +0200
@@ -179,54 +179,6 @@
# Checks for X window. #
# --------------------- #
-
-# _AC_PATH_X_XMKMF
-# ----------------
-# Internal subroutine of _AC_PATH_X.
-# Set ac_x_includes and/or ac_x_libraries.
-m4_define([_AC_PATH_X_XMKMF],
-[AC_ARG_VAR(XMKMF, [Path to xmkmf, Makefile generator for X Window System])dnl
-rm -f -r conftest.dir
-if mkdir conftest.dir; then
- cd conftest.dir
- cat >Imakefile <<'_ACEOF'
-incroot:
- @echo incroot='${INCROOT}'
-usrlibdir:
- @echo usrlibdir='${USRLIBDIR}'
-libdir:
- @echo libdir='${LIBDIR}'
-_ACEOF
- if (export CC; ${XMKMF-xmkmf}) >/dev/null 2>/dev/null && test -f Makefile; then
- # GNU make sometimes prints "make[1]: Entering...", which would confuse us.
- for ac_var in incroot usrlibdir libdir; do
- eval "ac_im_$ac_var=\`\${MAKE-make} $ac_var 2>/dev/null | sed -n 's/^$ac_var=//p'\`"
- done
- # Open Windows xmkmf reportedly sets LIBDIR instead of USRLIBDIR.
- for ac_extension in a so sl dylib la dll; do
- if test ! -f "$ac_im_usrlibdir/libX11.$ac_extension" &&
- test -f "$ac_im_libdir/libX11.$ac_extension"; then
- ac_im_usrlibdir=$ac_im_libdir; break
- fi
- done
- # Screen out bogus values from the imake configuration. They are
- # bogus both because they are the default anyway, and because
- # using them would break gcc on systems where it needs fixed includes.
- case $ac_im_incroot in
- /usr/include) ac_x_includes= ;;
- *) test -f "$ac_im_incroot/X11/Xos.h" && ac_x_includes=$ac_im_incroot;;
- esac
- case $ac_im_usrlibdir in
- /usr/lib | /usr/lib64 | /lib | /lib64) ;;
- *) test -d "$ac_im_usrlibdir" && ac_x_libraries=$ac_im_usrlibdir ;;
- esac
- fi
- cd ..
- rm -f -r conftest.dir
-fi
-])# _AC_PATH_X_XMKMF
-
-
# _AC_PATH_X_DIRECT
# -----------------
# Internal subroutine of _AC_PATH_X.
@@ -234,40 +186,7 @@
m4_define([_AC_PATH_X_DIRECT],
[# Standard set of common directories for X headers.
# Check X11 before X11Rn because it is often a symlink to the current release.
-ac_x_header_dirs='
-/usr/X11/include
-/usr/X11R6/include
-/usr/X11R5/include
-/usr/X11R4/include
-
-/usr/include/X11
-/usr/include/X11R6
-/usr/include/X11R5
-/usr/include/X11R4
-
-/usr/local/X11/include
-/usr/local/X11R6/include
-/usr/local/X11R5/include
-/usr/local/X11R4/include
-
-/usr/local/include/X11
-/usr/local/include/X11R6
-/usr/local/include/X11R5
-/usr/local/include/X11R4
-
-/usr/X386/include
-/usr/x386/include
-/usr/XFree86/include/X11
-
-/usr/include
-/usr/local/include
-/usr/unsupported/include
-/usr/athena/include
-/usr/local/x11r5/include
-/usr/lpp/Xamples/include
-
-/usr/openwin/include
-/usr/openwin/share/include'
+ac_x_header_dirs=''
if test "$ac_x_includes" = no; then
# Guess where to find include files, by looking for Xlib.h.
@@ -316,7 +235,6 @@
[AC_CACHE_VAL(ac_cv_have_x,
[# One or both of the vars are not set, and there is no cached value.
ac_x_includes=no ac_x_libraries=no
-_AC_PATH_X_XMKMF
_AC_PATH_X_DIRECT
case $ac_x_includes,$ac_x_libraries in #(
no,* | *,no | *\'*)
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