[Andi Kleen]
> > dependency is met when the symbol is not defined.
Right.
[Roman Zippel]
> Boolean is simple, what about tristate symbols? How does it modify
> the input range?
!y == n
!m == n
!n == y
To me these are the only semantics that make any sense. Certainly if
it goes in the kernel it needs to be added to config-language.txt.
(Note: these are only small changes, but thanks to word-wrapping...)
--- 2.4.20pre1/Documentation/kbuild/config-language.txt 2002-02-25 13:37:51.000000000 -0600
+++ 2.4.20pre1p/Documentation/kbuild/config-language.txt 2002-08-08 12:39:36.000000000 -0500
@@ -85,7 +85,9 @@
making one massive dependency on include/linux/autoconf.h.
A /dep/ is a dependency. Syntactically, it is a /word/. At run
- time, a /dep/ must evaluate to "y", "m", "n", or "".
+ time, a /dep/ must evaluate to "y", "!y", "m", "!m", "n", "!n",
+ "", or "!". The !-prefixed forms have a negated sense: "!y" and
+ "!m" are equivalent to "n"; "!n" and "!" are equivalent to "y".
An /expr/ is a bash-like expression using the operators
'=', '!=', '-a', '-o', and '!'.
@@ -439,12 +441,12 @@
=== dep_bool /prompt/ /symbol/ /dep/ ...
This verb evaluates all of the dependencies in the dependency list.
-Any dependency which has a value of "y" does not restrict the input
-range. Any dependency which has an empty value is ignored.
-Any dependency which has a value of "n", or which has some other value,
-(like "m") restricts the input range to "n". Quoting dependencies is not
-allowed. Using dependencies with an empty value possible is not
-recommended. See also dep_mbool below.
+Any dependency which has a value of "y", "!n" or "!" does not restrict
+the input range. Any dependency which has an empty value is ignored.
+Any dependency which has a value of "n", or which has some other
+value (like "m"), restricts the input range to "n". Quoting
+dependencies is not allowed. Using dependencies with an empty value
+possible is not recommended. See also dep_mbool below.
If the input range is restricted to the single choice "n", dep_bool
silently assigns "n" to /symbol/. If the input range has more than
@@ -469,11 +471,12 @@
=== dep_mbool /prompt/ /symbol/ /dep/ ...
This verb evaluates all of the dependencies in the dependency list.
-Any dependency which has a value of "y" or "m" does not restrict the
-input range. Any dependency which has an empty value is ignored.
-Any dependency which has a value of "n", or which has some other value,
-restricts the input range to "n". Quoting dependencies is not allowed.
-Using dependencies with an empty value possible is not recommended.
+Any dependency which has a value of "y", "m", "!n" or "!" does not
+restrict the input range. Any dependency which has an empty value is
+ignored. Any dependency which has a value of "n", or which has some
+other value, restricts the input range to "n". Quoting dependencies
+is not allowed. Using dependencies with an empty value possible is
+not recommended.
If the input range is restricted to the single choice "n", dep_bool
silently assigns "n" to /symbol/. If the input range has more than
@@ -514,12 +517,13 @@
=== dep_tristate /prompt/ /symbol/ /dep/ ...
This verb evaluates all of the dependencies in the dependency list.
-Any dependency which has a value of "y" does not restrict the input range.
-Any dependency which has a value of "m" restricts the input range to
-"m" or "n". Any dependency which has an empty value is ignored.
-Any dependency which has a value of "n", or which has some other value,
-restricts the input range to "n". Quoting dependencies is not allowed.
-Using dependencies with an empty value possible is not recommended.
+Any dependency which has a value of "y", "!n" or "!" does not restrict
+the input range. Any dependency which has a value of "m" restricts
+the input range to "m" or "n". Any dependency which has an empty
+value is ignored. Any dependency which has a value of "n", or which
+has some other value, restricts the input range to "n". Quoting
+dependencies is not allowed. Using dependencies with an empty value
+possible is not recommended.
If the input range is restricted to the single choice "n", dep_tristate
silently assigns "n" to /symbol/. If the input range has more than
-
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This archive was generated by hypermail 2b29 : Thu Aug 15 2002 - 22:00:18 EST