diff options
Diffstat (limited to 'poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml')
| -rw-r--r-- | poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml index 88622421d..421364c2c 100644 --- a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml +++ b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml @@ -369,9 +369,8 @@ <para> These operators differ from the ":=", ".=", "=.", "+=", and "=+" - operators in that their effects are deferred - until after parsing completes rather than being immediately - applied. + operators in that their effects are applied at variable + expansion time rather than being immediately applied. Here are some examples: <literallayout class='monospaced'> B = "bval" @@ -435,7 +434,7 @@ <para> Like "_append" and "_prepend", "_remove" - is deferred until after parsing completes. + is applied at variable expansion time. </para> </section> @@ -800,17 +799,15 @@ <title>Key Expansion</title> <para> - Key expansion happens when the BitBake datastore is finalized - just before BitBake expands overrides. + Key expansion happens when the BitBake datastore is finalized. To better understand this, consider the following example: <literallayout class='monospaced'> A${B} = "X" B = "2" A2 = "Y" </literallayout> - In this case, after all the parsing is complete, and - before any overrides are handled, BitBake expands - <filename>${B}</filename> into "2". + In this case, after all the parsing is complete, + BitBake expands <filename>${B}</filename> into "2". This expansion causes <filename>A2</filename>, which was set to "Y" before the expansion, to become "X". </para> |