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| author | Michał Górny <gentoo@mgorny.alt.pl> | 2010-07-18 10:26:40 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2010-07-20 15:43:27 +0200 |
| commit | 6dc0c2f3384fe543a805922c6a314c7ad25a92fc (patch) | |
| tree | 994c4aa6435230b829c6cc41fd771eff7ddd9e54 /scripts | |
| parent | 1c5474a65bf15a4cb162dfff86d6d0b5a08a740c (diff) | |
| download | lwn-6dc0c2f3384fe543a805922c6a314c7ad25a92fc.tar.gz lwn-6dc0c2f3384fe543a805922c6a314c7ad25a92fc.zip | |
kbuild: Make the setlocalversion script POSIX-compliant
The 'source' builtin is a bash alias to the '.' (dot) builtin. While the
former is supported only by bash, the latter is specified in POSIX and
works fine with all POSIX-compliant shells I am aware of.
The '$_' special parameter is specific to bash. It is partially
supported in dash too but it always evaluates to the current script path
(which causes the script to enter a loop recursively re-executing
itself). This is why I have replaced the two occurences of '$_' with the
explicit parameter.
The 'local' builtin is another example of bash-specific code. Although
it is supported by all POSIX-compliant shells I am aware of, it is not
part of POSIX specification and thus the code should not rely on it
assigning a specific value to the local variable. Moreover, the 'posh'
shell has a limited version of 'local' builtin not supporting direct
variable assignments. Thus, I have broken one of the 'local'
declarations down into a (non-POSIX) 'local' declaration and a plain
(POSIX-compliant) variable assignment.
Signed-off-by: Michał Górny <gentoo@mgorny.alt.pl>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/setlocalversion | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/scripts/setlocalversion b/scripts/setlocalversion index d6a866ed1835..a7b9f7607e13 100755 --- a/scripts/setlocalversion +++ b/scripts/setlocalversion @@ -30,11 +30,12 @@ fi scm_version() { - local short=false + local short + short=false cd "$srctree" if test -e .scmversion; then - cat "$_" + cat .scmversion return fi if test "$1" = "--short"; then @@ -136,7 +137,7 @@ if $scm_only; then fi if test -e include/config/auto.conf; then - source "$_" + . include/config/auto.conf else echo "Error: kernelrelease not valid - run 'make prepare' to update it" exit 1 |