Alexander Leidinger

Restore the null-character constant in the tag conversion loop

Ask __builtin_cpu_supports() only about names the compiler knows

Migrate the deprecated INCLUDES variable to AM_CPPFLAGS

Declare the test-driver list where automake can read it

Place objects built from another directory's sources under the build tree

Remove the 80-bit float check nothing asks for

Compatibility issues

Option to preserve the file creation + modification date in