swig: add native wrapper for SWIGLIB

Native swig will read data from hard-coded SWIGLIB or the same
environment variable.

While using sstate, the hard-coded SWIGLIB will point to the project
that create original sstates. This would cause build issues, so add
a wrapper to set the environment variable SWIGLIB to a relative path
on current sysroot.

Signed-off-by: Xin Ouyang <Xin.Ouyang@windriver.com>
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/meta-oe/recipes-devtools/swig/swig.inc b/meta-oe/recipes-devtools/swig/swig.inc
index 52ef9a620..9821fa560 100644
--- a/meta-oe/recipes-devtools/swig/swig.inc
+++ b/meta-oe/recipes-devtools/swig/swig.inc
@@ -53,3 +53,11 @@ do_install_append_class-nativesdk() {
     cd ${D}${bindir}
     ln -s swig swig2.0
 }
+
+def swiglib_relpath(d):
+    swiglib = d.getVar('datadir', True) + "/" + d.getVar('BPN', True) + "/" + d.getVar('PV', True)
+    return os.path.relpath(swiglib, d.getVar('bindir', True))
+
+do_install_append_class-native() {
+    create_wrapper ${D}${bindir}/swig SWIG_LIB='`dirname $''realpath`'/${@swiglib_relpath(d)}
+}