How to create localpatches?

[cafaia]

How to create localpatches in '/etc/portage/localpatches'? I used the command 'diff -Naur', but I do not know how should be the structure the file '.patch'.

I want to apply an patch on a ebuild from portage, I have this with the command 'diff -Naur':

 

--- ftgl-2.1.3_rc5.ebuild.orig  2017-05-24 08:51:52.670657213 -0300

+++ ftgl-2.1.3_rc5.ebuild       2017-05-24 08:52:21.856042287 -0300

@@ -37,6 +37,7 @@

 

 src_configure() {

        strip-flags # ftgl is sensitive - bug #112820

+       append-cxxflags -std=c++14

        econf $(use_enable static-libs static)

 }

 

but it's not working in '/etc/portage/localpatches/media-libs/ftgl-2.1.3_rc5/std-14.patch'. What should I do?

[cardinal]

Local patches are applied to the source code only, not the ebuild.

Modified ebuilds go in the local overlay.

[cafaia]

Hello, cardinal!

 

Thank you very much for your attention.