[net-im/spectrum2] try a fix for newer protobuf

net-im/spectrum2/files/spectrum2-cxx14.patch

@@ -0,0 +1,16 @@
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 0c2ab857..1195c8b9 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -4,7 +4,7 @@ cmake_policy(SET CMP0037 OLD)
+ 
+ project(libtransport)
+ 
+-set(CMAKE_CXX_STANDARD 11)
++set(CMAKE_CXX_STANDARD 14)
+ if(WIN32)
+ 	set(CMAKE_CXX_STANDARD 17)
+ endif(WIN32)

net-im/spectrum2/spectrum2-9999.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -64,7 +64,9 @@ DEPEND="
 	doc? ( app-doc/doxygen )
 	test? ( dev-util/cppunit )
 "
-
+PATCHES=(
+	"${FILESDIR}/${PN}-cxx14.patch"
+)
 
 src_prepare() {
 	# Respect users LDFLAGS