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abd4192b07
In my setup, clang finds `/usr/local/cuda` and hence the output of `clang -v` ends with this line: Found CUDA installation: /usr/local/cuda, version This confuses the `detect-compiler` script because it matches _all_ lines that contain the needle "version" surrounded by spaces. As a consequence, the `get_family` function returns two lines: "Ubuntu clang" and above-mentioned line, which the `case` statement does not handle well and hence reports "unknown compiler family" instead of the expected set of "clang14", "clang13", ..., "clang1" output. Let's unconfuse the script by letting it parse the first matching line and ignore the rest. Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Acked-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
59 lines
1.2 KiB
Bash
Executable File
59 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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#
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# Probe the compiler for vintage, version, etc. This is used for setting
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# optional make knobs under the DEVELOPER knob.
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CC="$*"
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# we get something like (this is at least true for gcc and clang)
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#
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# FreeBSD clang version 3.4.1 (tags/RELEASE...)
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get_version_line() {
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LANG=C LC_ALL=C $CC -v 2>&1 | sed -n '/ version /{p;q;}'
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}
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get_family() {
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get_version_line | sed 's/^\(.*\) version [0-9].*/\1/'
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}
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get_version() {
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# A string that begins with a digit up to the next SP
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ver=$(get_version_line | sed 's/^.* version \([0-9][^ ]*\).*/\1/')
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# There are known -variant suffixes that do not affect the
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# meaning of the main version number. Strip them.
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ver=${ver%-win32}
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ver=${ver%-posix}
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echo "$ver"
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}
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print_flags() {
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family=$1
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version=$(get_version | cut -f 1 -d .)
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# Print a feature flag not only for the current version, but also
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# for any prior versions we encompass. This avoids needing to do
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# numeric comparisons in make, which are awkward.
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while test "$version" -gt 0
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do
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echo $family$version
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version=$((version - 1))
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done
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}
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case "$(get_family)" in
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gcc)
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print_flags gcc
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;;
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clang | *" clang")
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print_flags clang
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;;
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"Apple LLVM")
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print_flags clang
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;;
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*)
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: unknown compiler family
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;;
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esac
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