[oe] [meta-oe][PATCH] luajit: test SITEINFO_BITS instead of maintaining a list of 32bit targets

[Andre McCurdy]

When cross compiling, the word size of the compiler set via HOST_CC
must match the word size of the target. That's achieved by appending
"-m32" to BUILD_CC_ARCH if the target word size is known to be 32bits.

Unfortunately the current list of over-rides (powerpc, x86 and arm)
does not cover all cases (e.g. it ignores MIPS). Using SITEINFO_BITS
is a more generic solution.

Signed-off-by: Andre McCurdy <armccurdy at gmail.com>
---
 meta-oe/recipes-devtools/luajit/luajit_2.0.4.bb | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/meta-oe/recipes-devtools/luajit/luajit_2.0.4.bb b/meta-oe/recipes-devtools/luajit/luajit_2.0.4.bb
index 964dc1d..430279f 100644
--- a/meta-oe/recipes-devtools/luajit/luajit_2.0.4.bb
+++ b/meta-oe/recipes-devtools/luajit/luajit_2.0.4.bb
@@ -11,7 +11,7 @@ SRC_URI[sha256sum] = "620fa4eb12375021bef6e4f237cbd2dd5d49e56beb414bee052c746bee
 
 S = "${WORKDIR}/LuaJIT-${PV}"
 
-inherit pkgconfig binconfig
+inherit pkgconfig binconfig siteinfo
 
 BBCLASSEXTEND = "native"
 
@@ -21,9 +21,7 @@ BBCLASSEXTEND = "native"
 # you need to install the multilib development package (e.g.
 # libc6-dev-i386 on Debian/Ubuntu) and build a 32 bit host part
 # (HOST_CC="gcc -m32").
-BUILD_CC_ARCH_append_powerpc = ' -m32'
-BUILD_CC_ARCH_append_x86 = ' -m32'
-BUILD_CC_ARCH_append_arm = ' -m32'
+BUILD_CC_ARCH_append = " ${@['-m32',''][d.getVar('SITEINFO_BITS') != '32']}"
 
 # The lua makefiles expect the TARGET_SYS to be from uname -s
 # Values: Windows, Linux, Darwin, iOS, SunOS, PS3, GNU/kFreeBSD
-- 
1.9.1