Generate and build X2AP ASN.1 during build time

openair2/X2AP/CMakeLists.txt

@@ -0,0 +1 @@
+add_subdirectory(MESSAGES)

openair2/X2AP/MESSAGES/CMakeLists.txt

@@ -0,0 +1,21 @@
+set(X2AP_VERSION 15 6 0)
+make_version(X2AP_cc ${X2AP_VERSION})
+#add_definitions(-DX2AP_VERSION=${X2AP_cc})
+string(REPLACE ";" "." X2AP_RELEASE "${X2AP_VERSION}")
+
+if(X2AP_RELEASE VERSION_EQUAL "15.6.0")
+  include(ASN1/R15/x2ap-15.6.0.cmake)
+else()
+  message(FATAL_ERROR "unknown X2AP_RELEASE ${X2AP_RELEASE}")
+endif()
+
+add_custom_command(OUTPUT ${x2ap_source} ${x2ap_headers}
+  COMMAND ASN1C_PREFIX=X2AP_ asn1c -pdu=all -gen-PER -no-gen-OER -fcompound-names -no-gen-example -fno-include-deps -D ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/${X2AP_GRAMMAR}
+  DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${X2AP_GRAMMAR}
+  COMMENT "Generating X2AP source files from ${CMAKE_CURRENT_SOURCE_DIR}/${X2AP_GRAMMAR}"
+)
+
+add_library(asn1_x2ap ${x2ap_source})
+target_include_directories(asn1_x2ap PUBLIC "${CMAKE_CURRENT_BINARY_DIR}")
+target_compile_options(asn1_x2ap PRIVATE -DASN_DISABLE_OER_SUPPORT -w)
+