diff options
Diffstat (limited to 'support/scripts/br2-external')
| -rwxr-xr-x | support/scripts/br2-external | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/support/scripts/br2-external b/support/scripts/br2-external index 6c2b85b5c..1c42ffafc 100755 --- a/support/scripts/br2-external +++ b/support/scripts/br2-external @@ -19,9 +19,11 @@ main() { # Forget options; keep only positional args shift $((OPTIND-1)) - if [ ${#} -ne 1 ]; then - error "need exactly one br2-external tree to be specified\n" + # Accept 0 or 1 br2-external tree. + if [ ${#} -gt 1 ]; then + error "only zero or one br2-external tree allowed.\n" fi + br2_ext="${1}" if [ -z "${ofile}" ]; then @@ -38,6 +40,11 @@ main() { do_validate() { local br2_ext="${1}" + # No br2-external tree is valid + if [ -z "${br2_ext}" ]; then + return + fi + if [ ! -d "${br2_ext}" ]; then error "'%s': no such file or directory\n" "${br2_ext}" fi @@ -52,12 +59,17 @@ do_validate() { do_kconfig() { printf '#\n# Automatically generated file; DO NOT EDIT.\n#\n' printf '\n' + + if [ -z "${BR2_EXT}" ]; then + printf '# No br2-external tree defined.\n' + return + fi + printf 'config BR2_EXTERNAL\n' printf '\tstring\n' printf '\tdefault "%s"\n' "${BR2_EXT}" printf '\n' printf 'menu "User-provided options"\n' - printf '\tdepends on BR2_EXTERNAL != "support/dummy-external"\n' printf '\n' printf 'source "%s/Config.in"\n' "${BR2_EXT}" printf '\n' |