bison: fix m4 dependency

Bison needs m4 (at runtime). In addition, the bison 2.5 configure script
checks for m4 4.1.6 or newer, and bails out otherwise, but ends up looking
at whatever the build host has rather than the cross version, which might
not be the correct version (or even available).

Fix it by short circuiting the check.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Peter Korsgaard 2011-12-04 21:39:02 +01:00
parent 2c6390a5d0
commit 2077f955ef
2 changed files with 6 additions and 0 deletions

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@ -1,6 +1,7 @@
config BR2_PACKAGE_BISON
bool "bison"
depends on BR2_USE_WCHAR
select BR2_PACKAGE_M4
help
General-purpose parser generator that converts a
grammar description for an LALR context-free grammar into a C

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@ -7,11 +7,16 @@
BISON_VERSION = 2.5
BISON_SITE = $(BR2_GNU_MIRROR)/bison
BISON_CONF_ENV += ac_cv_path_M4=/usr/bin/m4
BISON_DEPENDENCIES += m4
define BISON_DISABLE_EXAMPLES
echo 'all install:' > $(@D)/examples/Makefile
endef
BISON_POST_CONFIGURE_HOOKS += BISON_DISABLE_EXAMPLES
HOST_BISON_DEPENDENCIES += host-m4
$(eval $(call AUTOTARGETS))
$(eval $(call AUTOTARGETS,host))