File mediastreamer2-fix-Archlinux-compilation.patch of Package mediastreamer2

--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -140,6 +140,37 @@
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/mediastreamer.pc.in ${CMAKE_CURRENT_BINARY_DIR}/mediastreamer.pc)
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/mediastreamer.pc DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
 
+##########################################################
+##
+## Archlinux fix for CMake
+## not being able to find all libraries
+##
+# Add functionality to print variables (useful for CMake debugging)
+include(CMakePrintHelpers)
+#
+# Determine where libraries usually end up...
+# /usr/lib64 on Fedora/openSUSE ... /usr/lib/x86_64-linux-gnu on Debian ... /usr/lib on Archlinux/Manjaro
+# It is needed when libraries are imported.
+# A typical linux library would be libc.so
+find_library(MY_LIBC_LIBRARY libc.so)
+cmake_print_variables(MY_LIBC_LIBRARY)
+# Get parent directory of libc.so
+cmake_path(GET MY_LIBC_LIBRARY PARENT_PATH MY_LINUX_USUAL_LIBRARY_DIR)
+cmake_print_variables(MY_LINUX_USUAL_LIBRARY_DIR)
+# Fix import libraries that CMake cannot find on its own
+add_library(bcg729 SHARED IMPORTED)
+set_property(TARGET bcg729 PROPERTY
+  IMPORTED_LOCATION "${MY_LINUX_USUAL_LIBRARY_DIR}/libbcg729.so")
+#  IMPORTED_LOCATION "/usr/lib/libbcg729.so")
+add_library(bcmatroska2 SHARED IMPORTED)
+set_property(TARGET bcmatroska2 PROPERTY
+  IMPORTED_LOCATION "${MY_LINUX_USUAL_LIBRARY_DIR}/libbcmatroska2.so")
+#  IMPORTED_LOCATION "/usr/lib/libbcmatroska2.so")
+##
+##  End modification
+##
+###########################################################
+
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_EXTENSIONS NO)