diff options
| author | Trent Piepho <xyzzy@speakeasy.org> | 2007-06-27 14:09:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-06-28 11:34:53 -0700 |
| commit | 59faba1b316a7798a33752b3889193333f8af1a0 (patch) | |
| tree | aa62041bf8c66f18cb78e97fe6ebfccc0f4d13f7 /drivers/media/dvb | |
| parent | 30acbabae38793c9c9acace4de5b1c1889570768 (diff) | |
Fix Kconfig dependency problems wrt boolean menuconfigs
If one has a dependency chain (tristate)FOO depends on (bool)BAR depends on
(tristate)BAZ, build problems will result. If BAZ=m, then BAR can be set
y, which allows FOO=y. It's possible to have FOO=y && BAZ=m, which
wouldn't be allowed if FOO depended directly on BAZ. In effect, the bool
promotes the tristate from m to y.
This ends up causing a problem with several menuconfigs that look like:
menuconfig BAR
bool
depends on BAZ [tristate]
if BAR
config FOO
tristate
endif
The solution used here is to add the dependencies of BAR to the if
statement, so that items in the if block will gain a direct
non-bool-promoted dependency on BAZ. This is how it would work if a menu
was used instead of an if block.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Jeff Garzik <jeff@garzik.org>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/media/dvb')
| -rw-r--r-- | drivers/media/dvb/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/dvb/Kconfig b/drivers/media/dvb/Kconfig index efd2b746815..03ef88acd9b 100644 --- a/drivers/media/dvb/Kconfig +++ b/drivers/media/dvb/Kconfig @@ -11,7 +11,7 @@ menuconfig DVB_CAPTURE_DRIVERS ---help--- Say Y to select Digital TV adapters -if DVB_CAPTURE_DRIVERS +if DVB_CAPTURE_DRIVERS && DVB_CORE comment "Supported SAA7146 based PCI Adapters" depends on DVB_CORE && PCI && I2C |