Merge pull request #3079 from briancroom/sourcekitd-repl-needs-unicode-libedit

[SourceKit] Only build sourcekitd-repl if a unicode-aware libedit is present

Author: gribozavr

tools/SourceKit/tools/sourcekitd-repl/CMakeLists.txt

@@ -1,26 +1,31 @@
-if(SWIFT_SOURCEKIT_USE_INPROC_LIBRARY)
-  set(SOURCEKITD_REPL_DEPEND sourcekitdInProc)
-else()
-  set(SOURCEKITD_REPL_DEPEND sourcekitd)
-endif()
+set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} edit)
+check_symbol_exists(el_wgets "histedit.h" HAVE_UNICODE_LIBEDIT)
+
+if(HAVE_UNICODE_LIBEDIT)
+  if(SWIFT_SOURCEKIT_USE_INPROC_LIBRARY)
+    set(SOURCEKITD_REPL_DEPEND sourcekitdInProc)
+  else()
+    set(SOURCEKITD_REPL_DEPEND sourcekitd)
+  endif()
 
-add_sourcekit_executable(sourcekitd-repl
-  sourcekitd-repl.cpp
-  DEPENDS ${SOURCEKITD_REPL_DEPEND} edit
-  COMPONENT_DEPENDS support
-)
+  add_sourcekit_executable(sourcekitd-repl
+    sourcekitd-repl.cpp
+    DEPENDS ${SOURCEKITD_REPL_DEPEND} edit
+    COMPONENT_DEPENDS support
+  )
 
-if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
-  set_target_properties(sourcekitd-repl
-    PROPERTIES
-    LINK_FLAGS "-Wl,-rpath -Wl,@executable_path/../lib")
+  if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+    set_target_properties(sourcekitd-repl
+      PROPERTIES
+      LINK_FLAGS "-Wl,-rpath -Wl,@executable_path/../lib")
 
-  if(SWIFT_ANALYZE_CODE_COVERAGE)
-    set_property(TARGET sourcekitd-repl APPEND_STRING PROPERTY
-      LINK_FLAGS " -fprofile-instr-generate -fcoverage-mapping")
+    if(SWIFT_ANALYZE_CODE_COVERAGE)
+      set_property(TARGET sourcekitd-repl APPEND_STRING PROPERTY
+        LINK_FLAGS " -fprofile-instr-generate -fcoverage-mapping")
+    endif()
   endif()
-endif()
 
-swift_install_in_component(tools
-    TARGETS sourcekitd-repl
-    RUNTIME DESTINATION bin)
+  swift_install_in_component(tools
+      TARGETS sourcekitd-repl
+      RUNTIME DESTINATION bin)
+endif()