waf-samba.bbclass: add cross-answers option and files

--cross-execute uses qemu to run cross-compiled binaries,
it works fine for qemu supported targets, but it definitely
will fail if the target is not supported by qemu. So we need
to use the cross-answers option.

Added three methods and set 'answer' as default:

1. answers:
   Only --cross-answers - try the cross-answers file, and if
   there's no corresponding answer, add to the file and mark
   the configure process as unfinished.
2. exec:
   Only --cross-execute - get the answer from cross-execute,
   an emulator (qemu) is used to run cross-compiled binaries.
3. both:
   Try the cross-answers file first, and if there is no
   corresponding answer, use cross-execute to get an answer,
   and add that answer to the file.

The cross files in are all generated by qemu when the 'both'
mode is enabled, and are placed in a common directory
LAYERDIR/files/waf-cross-answers which is set as
WAF_CROSS_ANSWERS_PATH in layer.conf of meta-oe,
so that we don't have to put copies of them for each
package (there are 5 packages inerit waf-samba for now)

Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Joe MacDonald <joe_macdonald@mentor.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/meta-oe/files/waf-cross-answers/cross-answers-powerpc64.txt b/meta-oe/files/waf-cross-answers/cross-answers-powerpc64.txt
new file mode 100644
index 0000000000..fd585f0d5b
--- /dev/null
+++ b/meta-oe/files/waf-cross-answers/cross-answers-powerpc64.txt
@@ -0,0 +1,39 @@
+Checking uname sysname type: "Linux"
+Checking uname version type: "# Wed May 20 10:34:39 UTC 2015"
+Checking simple C program: "hello world"
+rpath library support: OK
+-Wl,--version-script support: OK
+Checking getconf LFS_CFLAGS: NO
+Checking correct behavior of strtoll: NO
+Checking for working strptime: OK
+Checking for C99 vsnprintf: "1"
+Checking for HAVE_SHARED_MMAP: OK
+Checking for HAVE_MREMAP: OK
+Checking for HAVE_SECURE_MKSTEMP: OK
+Checking for HAVE_IFACE_GETIFADDRS: NO
+Checking for HAVE_IFACE_IFCONF: NO
+Checking for HAVE_IFACE_IFREQ: NO
+Checking for large file support without additional flags: OK
+Checking for HAVE_INCOHERENT_MMAP: NO
+Checking value of NSIG: "65"
+Checking value of _NSIG: "65"
+Checking value of SIGRTMAX: "64"
+Checking value of SIGRTMIN: "34"
+Checking whether the WRFILE -keytab is supported: OK
+Checking for kernel change notify support: OK
+Checking for Linux kernel oplocks: OK
+Checking for kernel share modes: OK
+Checking whether POSIX capabilities are available: OK
+Checking if can we convert from CP850 to UCS-2LE: (255, "")
+Checking if can we convert from IBM850 to UCS-2LE: (255, "")
+Checking if can we convert from UTF-8 to UCS-2LE: OK
+vfs_fileid checking for statfs() and struct statfs.f_fsid: OK
+Checking whether we can use Linux thread-specific credentials: OK
+Checking whether fcntl locking is available: OK
+Checking for the maximum value of the 'time_t' type: OK
+Checking whether the realpath function allows a NULL argument: OK
+Checking for ftruncate extend: OK
+getcwd takes a NULL argument: OK
+Checking for small off_t: NO
+Checking whether blkcnt_t is 32 bit: NO
+Checking whether blkcnt_t is 64 bit: OK