grpc: update to 1.27.3.

Use cmake, fix cross.

srcpkgs/grpc/template

@@ -1,10 +1,12 @@
 # Template file for 'grpc'
 pkgname=grpc
-version=1.26.0
-revision=2
-build_style=gnu-makefile
-make_build_args="prefix=\$(DESTDIR)/usr AROPTS=rc LD=\$(CC)"
-make_install_args="prefix=\$(DESTDIR)/usr"
+version=1.27.3
+revision=1
+_abseilver=37dd2562ec830d547a1524bb306be313ac3f2556
+build_style=cmake
+configure_args="-DBUILD_SHARED_LIBS=ON
+ -DgRPC_CARES_PROVIDER=package -DgRPC_PROTOBUF_PROVIDER=package
+ -DgRPC_SSL_PROVIDER=package -DgRPC_ZLIB_PROVIDER=package"
 hostmakedepends="which protobuf"
 makedepends="zlib-devel c-ares-devel libressl-devel libprotoc-devel
  protobuf-devel gperftools-devel"
@@ -12,12 +14,18 @@ short_desc="High performance, open source, general RPC framework"
 maintainer="Leah Neukirchen <leah@vuxu.org>"
 license="Apache-2.0"
 homepage="https://github.com/grpc/grpc"
-distfiles="https://github.com/${pkgname}/${pkgname}/archive/v${version}/${pkgname}-${version}.tar.gz"
-checksum=2fcb7f1ab160d6fd3aaade64520be3e5446fc4c6fa7ba6581afdc4e26094bd81
-nocross=yes
+distfiles="https://github.com/${pkgname}/${pkgname}/archive/v${version}/${pkgname}-${version}.tar.gz
+ https://github.com/abseil/abseil-cpp/archive/${_abseilver}/abseil-cpp-${_abseilver}.tar.gz"
+checksum="c2ab8a42a0d673c1acb596d276055adcc074c1116e427f118415da3e79e52969
+ 19391fb4882601a65cb648d638c11aa301ce5f525ef02da1a9eafd22f72d7c59"
+
+if [ "$CROSS_BUILD" ]; then
+	hostmakedepends+=" grpc"   # need host grpc_cpp_plugin
+fi
 
 post_extract() {
-	sed -r 's/-Werror//g;/ldconfig/d;s/ strip-(static|shared)_c(xx)? / /' -i Makefile
+	rm -rf third_party/abseil-cpp
+	mv ../abseil-cpp-${_abseilver} third_party/abseil-cpp
 }
 
 grpc-devel_package() {
@@ -25,8 +33,9 @@ grpc-devel_package() {
 	depends="${sourcepkg}>=${version}_${revision}"
 	pkg_install() {
 		vmove usr/include
-		vmove usr/lib/*.so
 		vmove usr/lib/*.a
+		vmove usr/lib/*.so
+		vmove usr/lib/cmake
 		vmove usr/lib/pkgconfig
 	}
 }