[OE-core] [PATCH] package_rpm: Add builddir macro to define source directory

[Richard Purdie]

This allows its usage in other RPM macros so files in ${S} can be found.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>

diff --git a/meta/classes/package_rpm.bbclass b/meta/classes/package_rpm.bbclass
index 0f565ac..51910ec 100644
--- a/meta/classes/package_rpm.bbclass
+++ b/meta/classes/package_rpm.bbclass
@@ -689,6 +689,7 @@ python do_package_rpm () {
     cmd = rpmbuild
     cmd = cmd + " --nodeps --short-circuit --target " + pkgarch + " --buildroot " + pkgd
     cmd = cmd + " --define '_topdir " + workdir + "' --define '_rpmdir " + pkgwritedir + "'"
+    cmd = cmd + " --define '_builddir " + d.getVar('S', True) + "'"
     cmd = cmd + " --define '_build_name_fmt %%{NAME}-%%{VERSION}-%%{RELEASE}.%%{ARCH}.rpm'"
     cmd = cmd + " --define '_use_internal_dependency_generator 0'"
     if perfiledeps: