|  | #!/bin/sh | 
|  | # SPDX-License-Identifier: GPL-2.0 | 
|  | # | 
|  | # clang-version [-p] clang-command | 
|  | # | 
|  | # Prints the compiler version of `clang-command' in a canonical 4-digit form | 
|  | # such as `0500' for clang-5.0 etc. | 
|  | # | 
|  | # With the -p option, prints the patchlevel as well, for example `050001' for | 
|  | # clang-5.0.1 etc. | 
|  | # | 
|  |  | 
|  | compiler="$*" | 
|  |  | 
|  | if ! ( $compiler --version | grep -q clang) ; then | 
|  | echo 0 | 
|  | exit 1 | 
|  | fi | 
|  |  | 
|  | MAJOR=$(echo __clang_major__ | $compiler -E -x c - | tail -n 1) | 
|  | MINOR=$(echo __clang_minor__ | $compiler -E -x c - | tail -n 1) | 
|  | PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1) | 
|  | printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL |