--- curl-7.66.0.ebuild  2019-09-12 13:29:33.590549480 -0400
+++ curl-7.66.0-r1.ebuild       2019-09-13 14:32:55.404105517 -0400
@@ -12,7 +12,7 @@
 LICENSE="MIT"
 SLOT="0"
 KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sh ~sparc ~x86 ~ppc-aix ~x64-cygwin ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~m68k-mint ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
-IUSE="adns brotli http2 idn ipv6 kerberos ldap metalink +progress-meter rtmp samba ssh ssl static-libs test threads"
+IUSE="adns brotli http2 nghttp3 quiche idn ipv6 kerberos ldap metalink +progress-meter rtmp samba ssh ssl static-libs test threads"
 IUSE+=" curl_ssl_gnutls curl_ssl_libressl curl_ssl_mbedtls curl_ssl_nss +curl_ssl_openssl curl_ssl_winssl"
 IUSE+=" elibc_Winnt"
 
@@ -43,6 +43,11 @@
                )
        )
        http2? ( net-libs/nghttp2[${MULTILIB_USEDEP}] )
+       quiche? ( net-libs/quiche[${MULTILIB_USEDEP}] )
+       nghttp3? (
+               net-libs/ngtcp2[ssl,${MULTILIB_USEDEP}]
+               net-libs/nghttp3[${MULTILIB_USEDEP}]
+       )
        idn? ( net-dns/libidn2:0=[static-libs?,${MULTILIB_USEDEP}] )
        adns? ( net-dns/c-ares:0[${MULTILIB_USEDEP}] )
        kerberos? ( >=virtual/krb5-0-r1[${MULTILIB_USEDEP}] )
@@ -201,6 +206,9 @@
                $(use_with kerberos gssapi "${EPREFIX}"/usr) \
                $(use_with metalink libmetalink) \
                $(use_with http2 nghttp2) \
+               $(use_with nghttp3) \
+               $(use_with nghttp3 ngtcp2) \
+               $(use_with quiche) \
                $(use_with rtmp librtmp) \
                $(use_with brotli) \
                --without-schannel \
@@ -227,6 +235,14 @@
                libs+=( "-lnghttp2" )
                priv+=( "libnghttp2" )
        fi
+       if use quiche; then
+               libs+=( "-lquiche" )
+               priv+=( "libquiche" )
+       fi
+       if use nghttp3; then
+               libs+=( "-lnghttp3" "-lngtcp2" )
+               priv+=( "libnghttp3" "-libtcp2" )
+       fi
        if use ssl && use curl_ssl_openssl; then
                libs+=( "-lssl" "-lcrypto" )
                priv+=( "openssl" )