app-crypt/gnupg: fix bug #649598, USE=usb on prefix

Closes: https://bugs.gentoo.org/649598
Suggested-by: Fabian Groffen <grobian@gentoo.org>
Package-Manager: Portage-2.3.47, Repoman-2.3.10

diff --git a/app-crypt/gnupg/gnupg-2.2.9.ebuild b/app-crypt/gnupg/gnupg-2.2.9.ebuild
index d53de1b7125817dec5a948753c796933e7d13ce2..2345009acbcb0cd8502707639e6940e7b87c7d99 100644 (file)
--- a/app-crypt/gnupg/gnupg-2.2.9.ebuild
+++ b/app-crypt/gnupg/gnupg-2.2.9.ebuild
@@ -3,7 +3,7 @@
 
 EAPI="6"
 
-inherit systemd toolchain-funcs
+inherit flag-o-matic systemd toolchain-funcs
 
 MY_P="${P/_/-}"
 
@@ -65,6 +65,10 @@ src_configure() {
                        --enable-scdaemon
                        $(use_enable usb ccid-driver)
                )
+               if use prefix && use usb ; then
+                       # bug #649598
+                       append-cppflags -I"${EPREFIX}/usr/include/libusb-1.0"
+               fi
        else
                myconf+=( --disable-scdaemon )
        fi