mirror of
https://github.com/git/git.git
synced 2024-12-15 12:53:36 +08:00
f32c5d3716
The case statement in detect-compiler notices 'clang', 'FreeBSD clang' and 'Apple clang', but there are other platforms that follow the '$VENDOR clang' pattern (e.g. Debian). Generalize the pattern to catch them. Signed-off-by: Junio C Hamano <gitster@pobox.com>
51 lines
981 B
Bash
Executable File
51 lines
981 B
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Probe the compiler for vintage, version, etc. This is used for setting
|
|
# optional make knobs under the DEVELOPER knob.
|
|
|
|
CC="$*"
|
|
|
|
# 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 | *" clang")
|
|
print_flags clang
|
|
;;
|
|
"Apple LLVM")
|
|
print_flags clang
|
|
;;
|
|
*)
|
|
: unknown compiler family
|
|
;;
|
|
esac
|