33f13ad7c5
The get_family and get_version helpers of detect-compiler assume that the line to identify the version from the compilers have a token "version", followed by the version number, followed by some other string, e.g. $ CC=gcc get_version_line gcc version 10.2.1 20210110 (Debian 10.2.1-6) But that is not necessarily true, e.g. $ CC=clang get_version_line Debian clang version 11.0.1-2 Tweak the script not to require extra string after the version. Signed-off-by: Junio C Hamano <gitster@pobox.com>
54 lines
1023 B
Bash
Executable File
54 lines
1023 B
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Probe the compiler for vintage, version, etc. This is used for setting
|
|
# optional make knobs under the DEVELOPER knob.
|
|
|
|
CC="$*"
|
|
|
|
# we get something like (this is at least true for gcc and clang)
|
|
#
|
|
# FreeBSD clang version 3.4.1 (tags/RELEASE...)
|
|
get_version_line() {
|
|
$CC -v 2>&1 | grep ' version '
|
|
}
|
|
|
|
get_family() {
|
|
get_version_line | sed 's/^\(.*\) version [0-9].*/\1/'
|
|
}
|
|
|
|
get_version() {
|
|
get_version_line | sed 's/^.* version \([0-9][^ ]*\).*/\1/'
|
|
}
|
|
|
|
print_flags() {
|
|
family=$1
|
|
version=$(get_version | cut -f 1 -d .)
|
|
|
|
# Print a feature flag not only for the current version, but also
|
|
# for any prior versions we encompass. This avoids needing to do
|
|
# numeric comparisons in make, which are awkward.
|
|
while test "$version" -gt 0
|
|
do
|
|
echo $family$version
|
|
version=$((version - 1))
|
|
done
|
|
}
|
|
|
|
case "$(get_family)" in
|
|
gcc)
|
|
print_flags gcc
|
|
;;
|
|
clang)
|
|
print_flags clang
|
|
;;
|
|
"FreeBSD clang")
|
|
print_flags clang
|
|
;;
|
|
"Apple LLVM"|"Apple clang")
|
|
print_flags clang
|
|
;;
|
|
*)
|
|
: unknown compiler family
|
|
;;
|
|
esac
|