Yocto - applying a bbappend file to a recipe (from github) - yocto

Question

I'm working with the meta-atmel layer in Yocto to create an image for a SAMA5D4 board.
I've created a custom layer & would like to patch a file (specifically https://github.com/linux4sam/egt/blob/master/src/app.cpp) with a diff I created:
index 869b1e2..c86ad1a 100644
--- a/app.cpp
+++ b/app.cpp.modified
## -342,8 +342,9 ## void Application::setup_inputs()
}
}
+// Modify to force use of tslib
#ifdef HAVE_LIBINPUT
- m_inputs.push_back(std::make_unique<detail::InputLibInput>(*this));
+// m_inputs.push_back(std::make_unique<detail::InputLibInput>(*this));
#endif
}
I recreated the directory structure in my custom layer to match the location of the file I'd like to alter:
yocto/meta-atmel/recipes-graphics/libegt/libegt_1.2.bb
yocto/meta-custom2/recipes-graphics/libegt/libegt_%.bbappend
My bbappend file is:
# Modify https://github.com/linux4sam/egt/src/app.cpp
# Issue with file path
SRC_URI += "file:0001-disable-libinput.patch"
FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
PACKAGE_ARCH = "${MACHINE_ARCH}"
How do I correctly include my patchfile to the file I'd like to modify?
Many thanks for looking!

Answer 1

Well looks like I may have solved the issue.
I moved my diff file to the directory:
yocto/meta-custom2/recipes-graphics/libegt/files
& corrected some errors:
Diff should be:
diff --git a/src/app.cpp b/src/app.cpp
index 869b1e2..c86ad1a 100644
--- a/src/app.cpp
+++ b/src/app.cpp
## -342,8 +342,9 ## void Application::setup_inputs()
}
}
+// Modify to force use of tslib
#ifdef HAVE_LIBINPUT
- m_inputs.push_back(std::make_unique<detail::InputLibInput>(*this));
+// m_inputs.push_back(std::make_unique<detail::InputLibInput>(*this));
#endif
}
where the '/src/app.cpp' referes to the location of the file that needs to be patched (i.e. similar if one carried out a git clone). Next my bbappend should have been:
# Modify https://github.com/linux4sam/egt/src/app.cpp
SRC_URI += "file://0001-disable-libinput.patch"
FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
PACKAGE_ARCH = "${MACHINE_ARCH}"
Hope this helps others & thanks to the teams working on Yocto/ OE!