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| author |   Stefan Weil <sw@weilnetz.de> | 2012-09-26 22:04:38 +0200 |
|---|---|---|
| committer |   Stefan Hajnoczi <stefanha@gmail.com> | 2012-10-05 14:00:36 +0200 |
| commit | afb63ebd0a9599312c27ecceb839a399740e00ef (patch) | |
| tree | 576cab232e9c05e818339ca10f1fc6242759168a | |
| parent | 7a608f562ebd91e811ed0b725e528c894e4f19c4 (diff) | |
configure: Support empty target list (--target-list=)
Specifying an empty target list with --target-list= is shorter
than specifying --disable-user --disable-system.
Both variants should give the same result: no targets at all.
This modification implements that feature.
It uses a trick which works with POSIX compliant shells to test whether
target_list is undefined (=> default targets) or empty (=> no targets).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
| -rwxr-xr-x | configure | 5 |
1 files changed, 3 insertions, 2 deletions
@@ -125,7 +125,8 @@ cc_i386=i386-pc-linux-gnu-gcc libs_qga="" debug_info="yes" -target_list="" +# Don't accept a target_list environment variable. +unset target_list # Default value for a variable defining feature "foo". # * foo="no" feature will only be used if --enable-foo arg is given @@ -1288,7 +1289,7 @@ if ! "$python" -c 'import sys; sys.exit(sys.version_info < (2,4) or sys.version_ exit 1 fi -if test -z "$target_list" ; then +if test -z "${target_list+xxx}" ; then target_list="$default_target_list" else target_list=`echo "$target_list" | sed -e 's/,/ /g'` |