Merge commit 'dd7e63af'

* commit 'dd7e63af':
  configure: Restore original endianness test

The test was not changed in 67e8f476
Merging only the explanation.
Merged-by: James Almer <jamrial@gmail.com>

configure

@@ -5400,6 +5400,7 @@ done
 
 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
 
+# The global variable ensures the bits appear unchanged in the object file.
 test_cc <<EOF || die "endian test failed"
 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
 EOF