Merge pull request swiftlang#22322 from nkcsgexi/libparser-version

cmake: allow SwiftSyntax parser to have an externally defined version number in the dylib

Author: nkcsgexi

tools/libSwiftSyntaxParser/CMakeLists.txt

@@ -20,6 +20,27 @@ add_llvm_symbol_exports(libSwiftSyntaxParser ${LLVM_EXPORTED_SYMBOL_FILE})
 # Adds -dead_strip option
 add_link_opts(libSwiftSyntaxParser)
 
+if (SWIFT_LIBPARSER_VER)
+  set(SWIFTSYNTAX_PARSER_VERSION_STRING "${SWIFT_LIBPARSER_VER}")
+elseif (DARWIN_TOOLCHAIN_VERSION)
+  set(SWIFTSYNTAX_PARSER_VERSION_STRING "${DARWIN_TOOLCHAIN_VERSION}")
+else()
+  set(SWIFTSYNTAX_PARSER_VERSION_STRING "${SWIFT_COMPILER_VERSION}")
+endif()
+
+if(SWIFTSYNTAX_PARSER_VERSION_STRING)
+  if("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
+    set(LIBPARSER_LINK_FLAGS " -Wl,-compatibility_version -Wl,1")
+    set(LIBPARSER_LINK_FLAGS "${LIBPARSER_LINK_FLAGS} -Wl,-current_version -Wl,${SWIFTSYNTAX_PARSER_VERSION_STRING}")
+    set_property(TARGET libSwiftSyntaxParser APPEND_STRING PROPERTY
+                 LINK_FLAGS ${LIBPARSER_LINK_FLAGS})
+  else()
+    set_target_properties(libSwiftSyntaxParser
+      PROPERTIES
+      VERSION ${SWIFTSYNTAX_PARSER_VERSION_STRING})
+  endif()
+endif()
+
 set_property(TARGET libSwiftSyntaxParser APPEND_STRING PROPERTY
   COMPILE_FLAGS " -fblocks")
 if(SWIFT_NEED_EXPLICIT_LIBDISPATCH)

utils/build-script-impl

@@ -107,6 +107,7 @@ KNOWN_SETTINGS=(
     test-installable-package    ""               "whether to run post-packaging tests on the produced package"
     reconfigure                 ""               "force a CMake configuration run even if CMakeCache.txt already exists"
     build-libparser-only        ""               "only build libSwiftSyntaxParser"
+    libparser-ver               ""               "current version of libSwiftSyntaxParser"
     skip-reconfigure            ""               "set to skip reconfigure"
     swift-primary-variant-sdk   ""               "default SDK for target binaries"
     swift-primary-variant-arch  ""               "default arch for target binaries"
@@ -2462,6 +2463,12 @@ for host in "${ALL_HOSTS[@]}"; do
                 fi
                 if [ "${BUILD_LIBPARSER_ONLY}" ]; then
                     build_targets=(libSwiftSyntaxParser)
+                    if [ "${LIBPARSER_VER}" ] ; then
+                      cmake_options=(
+                          "${cmake_options[@]}"
+                          -DSWIFT_LIBPARSER_VER:STRING="${LIBPARSER_VER}"
+                      )
+                    fi
                 fi
                 skip_build=${SKIP_BUILD_SWIFT}
                 ;;