media-video/mpv: strip ffnvcodec from mpv.pc for now

Dropped a note in #mpv-devel and seems being included is only because
it does not make the distinction between build-only and runtime. Would
need a fix like libplacebo did for xxhash.

For now, just force drop it here. The sed is re-used from libplacebo
for (another) similar issue, and should be proven to work fine by now.

Revbump is not super worth it, but mpv does not take long to build.

Closes: https://bugs.gentoo.org/971646
Signed-off-by: Ionen Wolkens <ionen@gentoo.org>

media-video/mpv/mpv-0.41.0-r1.ebuild

@@ -243,6 +243,12 @@ src_install() {
 		mv "${ED}"/usr/share/doc/{mpv,${PF}/examples} || die
 	fi
 
+	# prevent build-only ffnvcodec from leaking into the .pc (bug #971646)
+	if use nvenc; then
+		sed -Ee '/^Requires/s/ffnvcodec[^,]*,? ?//;s/, $//;/^Requires[^:]*: $/d' \
+			-i "${ED}"/usr/$(get_libdir)/pkgconfig/mpv.pc || die
+	fi
+
 	local GLOBIGNORE=*/*build*:*/*policy*
 	dodoc RELEASE_NOTES DOCS/*.{md,rst}
 }

media-video/mpv/mpv-9999.ebuild

@@ -245,6 +245,12 @@ src_install() {
 		mv "${ED}"/usr/share/doc/{mpv,${PF}/examples} || die
 	fi
 
+	# prevent build-only ffnvcodec from leaking into the .pc (bug #971646)
+	if use nvenc; then
+		sed -Ee '/^Requires/s/ffnvcodec[^,]*,? ?//;s/, $//;/^Requires[^:]*: $/d' \
+			-i "${ED}"/usr/$(get_libdir)/pkgconfig/mpv.pc || die
+	fi
+
 	local GLOBIGNORE=*/*build*:*/*policy*
 	dodoc RELEASE_NOTES DOCS/*.{md,rst}
 }