File bzrtp-fix-pkgconfig.patch of Package bzrtp

--- bzrtp-5.2.6/CMakeLists.txt.orig	2023-01-04 12:21:34.984376758 +0100
+++ bzrtp-5.2.6/CMakeLists.txt	2023-01-04 12:21:49.892454977 +0100
@@ -80,6 +80,14 @@
 set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/config.h PROPERTIES GENERATED ON)
 add_definitions("-DHAVE_CONFIG_H")
 
+set(PACKAGE_VERSION "${PROJECT_VERSION}")
+set(prefix ${CMAKE_INSTALL_PREFIX})
+set(exec_prefix ${prefix}/bin)
+set(libdir ${CMAKE_INSTALL_LIBDIR})
+set(includedir ${prefix}/include)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libbzrtp.pc.in ${CMAKE_CURRENT_BINARY_DIR}/libbzrtp.pc)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libbzrtp.pc DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
+
 bc_init_compilation_flags(STRICT_OPTIONS_CPP STRICT_OPTIONS_C STRICT_OPTIONS_CXX ENABLE_STRICT)
 if(CMAKE_VERSION VERSION_LESS 3.1 AND NOT APPLE AND NOT MSVC)
 	list(APPEND STRICT_OPTIONS_CXX "-std=c++11")