--- a/configure.ac
+++ b/configure.ac
@@ -1186,6 +1186,7 @@
   fribidi_in_path=yes
   ac_save_LIBS="$LIBS"
   LIBS="$LIBS $Bidi_LIBS"
+  if false; then
   AC_TRY_RUN([#include <stdlib.h>
 #include <fribidi/fribidi.h>
 int main()
@@ -1198,12 +1199,14 @@
 	return 0;
 }
 ], [:], [fribidi_in_path=no])
+  fi
   LIBS="$ac_save_LIBS"
   if test ! x"$fribidi_in_path" = xyes; then
     ac_save_CFLAGS="$CFLAGS"
     ac_save_LIBS="$LIBS"
     CFLAGS="$CFLAGS $Bidi_CFLAGS"
     LIBS="$LIBS $Bidi_LIBS"
+  if false; then
   AC_TRY_RUN([#include <stdlib.h>
 #include <fribidi/fribidi.h>
 int main()
@@ -1216,6 +1219,7 @@
 	return 0;
 }
 ], [:], [with_bidi=no; problem_bidi=": Bad fribidi version, see config.log"])
+    fi
     CFLAGS="$ac_save_CFLAGS"
     LIBS="$ac_save_LIBS"
   fi
@@ -1233,11 +1237,13 @@
   Bidi_LIBS=
 else
   AC_DEFINE(HAVE_BIDI)
+  if false; then
   AC_TRY_RUN([#include <fribidi/fribidi.h>
     int main(int c, char **v) {
       return FRIBIDI_CHARSET_NOT_FOUND * 0;
     }
   ], [AC_DEFINE(FRIBIDI_CHARSET_SPELLING)])
+  fi
 fi
 AH_VERBATIM([_FRIBIDI_CHARSET_SPELLING],
 [#ifdef FRIBIDI_CHARSET_SPELLING
@@ -1422,10 +1428,12 @@
 fi
 
 # Define some compatibility macros needed for config.h.
+if false; then
 mg_DEFINE_IF_NOT([#include <X11/keysym.h>],
   [defined XK_Page_Up && defined XK_Page_Down],
   [COMPAT_OLD_KEYSYMDEF], [$X_CFLAGS],
   [Old AIX systems (3.2.5) don't define some common keysyms.])
+fi
 AH_VERBATIM([_COMPAT_OLD_KEYSYMDEF],
 [#ifdef COMPAT_OLD_KEYSYMDEF
 #  define XK_Page_Up   XK_Prior