net/ecal: Allow build with tinyxml2 with meson

net/ecal/Makefile

@@ -28,7 +28,7 @@ LIB_DEPENDS=	libcurl.so:ftp/curl \
 		libyaml-cpp.so:devel/yaml-cpp
 		# binaries aren't linked with libfineftp-server.so, see https://github.com/continental/ecal/issues/381; same with libcurl.so
 
-USES=		cmake compiler:c++17-lang desktop-file-utils localbase:ldflags qt:5 shared-mime-info
+USES=		cmake compiler:c++17-lang desktop-file-utils localbase:ldflags pkgconfig qt:5 shared-mime-info
 USE_QT=		core gui widgets buildtools:build qmake:build
 USE_LDCONFIG=	yes
 

net/ecal/files/patch-app_rec_rec__server__core_CMakeLists.txt

@@ -0,0 +1,21 @@
+--- app/rec/rec_server_core/CMakeLists.txt.orig	2023-10-27 08:38:06 UTC
++++ app/rec/rec_server_core/CMakeLists.txt
+@@ -20,7 +20,8 @@ find_package(fineftp REQUIRED)
+ find_package(Protobuf REQUIRED)
+ find_package(spdlog REQUIRED)
+ find_package(fineftp REQUIRED)
+-find_package(tinyxml2 REQUIRED)
++find_package(PkgConfig REQUIRED)
++pkg_check_modules(tinyxml2 REQUIRED IMPORTED_TARGET tinyxml2)
+
+ set(PROJECT_NAME rec_server_core)
+
+@@ -66,7 +66,7 @@ target_link_libraries(${PROJECT_NAME}
+
+ target_link_libraries(${PROJECT_NAME}
+     PRIVATE
+-    tinyxml2::tinyxml2
++    PkgConfig::tinyxml2
+     protobuf::libprotobuf
+     eCAL::core
+     eCAL::app_pb

net/ecal/files/patch-app_sys_sys__core_CMakeLists.txt

@@ -0,0 +1,21 @@
+--- app/sys/sys_core/CMakeLists.txt.orig	2023-10-27 08:38:06 UTC
++++ app/sys/sys_core/CMakeLists.txt
+@@ -21,7 +21,8 @@ find_package(spdlog REQUIRED)
+ find_package(Threads REQUIRED)
+ find_package(Protobuf REQUIRED)
+ find_package(spdlog REQUIRED)
+-find_package(tinyxml2 REQUIRED)
++find_package(PkgConfig REQUIRED)
++pkg_check_modules(tinyxml2 REQUIRED IMPORTED_TARGET tinyxml2)
+
+ set(ecalsyscore_src
+   include/ecalsys/ecal_sys.h
+@@ -88,7 +88,7 @@ target_link_libraries(${PROJECT_NAME}
+
+ target_link_libraries(${PROJECT_NAME}
+   Threads::Threads
+-  tinyxml2::tinyxml2
++  PkgConfig::tinyxml2
+   spdlog::spdlog
+   protobuf::libprotobuf
+   eCAL::core