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05 April 2024, 19:32:26 UTC
Revision 897d28bcc23878b5d98b46f3903e3d2a302d8a01 authored by Junio C Hamano on 06 February 2021, 00:31:23 UTC, committed by Junio C Hamano on 06 February 2021, 00:31:23 UTC 
Merge branch 'ds/for-each-repo-noopfix' into maint
 
"git for-each-repo --config=<var> <cmd>" should not run <cmd> for
any repository when the configuration variable <var> is not defined
even once.

* ds/for-each-repo-noopfix:
  for-each-repo: do nothing on empty config
2 parent s 4fc7b22 + 6c62f01
Raw File
Tip revision: 897d28bcc23878b5d98b46f3903e3d2a302d8a01 authored by Junio C Hamano on 06 February 2021, 00:31:23 UTC
Merge branch 'ds/for-each-repo-noopfix' into maint
Tip revision: 897d28b
detect-compiler 
#!/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")
	print_flags clang
	;;
*)
	: unknown compiler family
	;;
esac
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