configure.ac: add a --without-prelink option

[Austin English]

Prelink is only available on Linux.

-- 
-Austin
-------------- next part --------------
diff --git a/configure.ac b/configure.ac
index 51d0533..9eda1ff 100644
--- a/configure.ac
+++ b/configure.ac
@@ -79,6 +79,7 @@ AC_ARG_WITH(png,       AS_HELP_STRING([--without-png],[do not use PNG]),
             [if test "x$withval" = "xno"; then ac_cv_header_png_h=no; fi])
 AC_ARG_WITH(pthread,   AS_HELP_STRING([--without-pthread],[do not use the pthread library]),
             [if test "x$withval" = "xno"; then ac_cv_header_pthread_h=no; fi])
+AC_ARG_WITH(prelink,   AS_HELP_STRING([--without-prelink],[do not use prelink support]))
 AC_ARG_WITH(sane,      AS_HELP_STRING([--without-sane],[do not use SANE (scanner support)]))
 AC_ARG_WITH(tiff,       AS_HELP_STRING([--without-tiff],[do not use TIFF]),
             [if test "x$withval" = "xno"; then ac_cv_header_tiffio_h=no; fi])
@@ -832,10 +833,15 @@ case $host_os in
                            *) LDEXECFLAGS="$LDEXECFLAGS -Wl,--section-start,.interp=0x7bf00400" ;;
                            esac
                           ])
-          AC_PATH_PROG(PRELINK, prelink, false, [/sbin /usr/sbin $PATH])
-          if test "x$PRELINK" = xfalse
+          if test "x$with_prelink" != "xno"
           then
-              WINE_WARNING([prelink not found, base address of core dlls won't be set correctly.])
+              AC_PATH_PROG(PRELINK, prelink, false, [/sbin /usr/sbin $PATH])
+              if test "x$PRELINK" = xfalse
+              then
+                  WINE_WARNING([prelink not found, base address of core dlls won't be set correctly.])
+              fi
+          else
+              PRELINK="false"
           fi
           ;;
       esac