configure.ac: unconditionally check for expat

Earlier commits moved the xmlconfig library to a wider userbase.
Thus having the check within --enable-dri is insufficient.

Upon closer look, nine needed it from it's early days - 948e6c5228
("nine: Add drirc options (v2)")

Fixes: 601093f95d ("xmlconfig: move into src/util")
Cc: Axel Davy <axel.davy@ens.fr>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> (IRC)

configure.ac

@@ -1791,6 +1791,15 @@ if test "x$with_dri_drivers" = xno; then
     with_dri_drivers=''
 fi
 
+# Check for expat
+PKG_CHECK_MODULES([EXPAT], [expat], [],
+    # expat version 2.0 and earlier do not provide expat.pc
+    [AC_CHECK_HEADER([expat.h],[],
+                     [AC_MSG_ERROR([Expat headers required for DRI not found])])
+     AC_CHECK_LIB([expat],[XML_ParserCreate],[],
+                 [AC_MSG_ERROR([Expat library required for DRI not found])])
+     EXPAT_LIBS="-lexpat"])
+
 dnl If $with_dri_drivers is yes, drivers will be added through
 dnl platform checks. Set DEFINES and LIB_DEPS
 if test "x$enable_dri" = xyes; then
@@ -1824,15 +1833,6 @@ if test "x$enable_dri" = xyes; then
         with_dri_drivers="i915 i965 nouveau r200 radeon swrast"
     fi
 
-    # Check for expat
-    PKG_CHECK_MODULES([EXPAT], [expat], [],
-        # expat version 2.0 and earlier do not provide expat.pc
-        [AC_CHECK_HEADER([expat.h],[],
-                         [AC_MSG_ERROR([Expat headers required for DRI not found])])
-         AC_CHECK_LIB([expat],[XML_ParserCreate],[],
-                     [AC_MSG_ERROR([Expat library required for DRI not found])])
-         EXPAT_LIBS="-lexpat"])
-
     # put all the necessary libs together
     DRI_LIB_DEPS="$DRI_LIB_DEPS $SELINUX_LIBS $LIBDRM_LIBS $EXPAT_LIBS -lm $PTHREAD_LIBS $DLOPEN_LIBS"
 fi