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Some shells use !(pattern|...|pattern) to match file names not
containing the specified patterns. This may result in output like
$ ./scripts/clang-version.sh gcc
./scripts/clang-version.sh[18]: COPYING: not found
printf: %d __clang_major__: conversion error
printf: %d __clang_minor__: conversion error
printf: %d __clang_patchlevel__: conversion error
00000
$
and set CONFIG_CLANG_VERSION to the invalid value '00000'.
POSIX says[0]
If the pipeline begins with the reserved word ! and command1 is a
subshell command, the application shall ensure that the ( operator at
the beginning of command1 is separated from the ! by one or more
<blank> characters. The behavior of the reserved word ! immediately
followed by the ( operator is unspecified.
So, just add a <blank> to prevent this.
[0] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_09_02
Signed-off-by: Michael Forney <mforney@mforney.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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This will be useful to describe the clang version dependency.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
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Based on gcc-version.sh, clang-version.sh prints out the correct
version of clang.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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