Merge branch 'mac-implicit-link-no-lto-flag' into release

Modules/CMakeParseImplicitLinkInfo.cmake

@@ -49,8 +49,12 @@ function(CMAKE_PARSE_IMPLICIT_LINK_INFO text lib_var dir_var fwk_var log_var obj
     if("${cmd}" MATCHES "${linker_regex}")
       string(APPEND log "  link line: [${line}]\n")
       string(REGEX REPLACE ";-([LYz]);" ";-\\1" args "${args}")
+      set(skip_value_of "")
       foreach(arg IN LISTS args)
-        if("${arg}" MATCHES "^-L(.:)?[/\\]")
+        if(skip_value_of)
+          string(APPEND log "    arg [${arg}] ==> skip value of ${skip_value_of}\n")
+          set(skip_value_of "")
+        elseif("${arg}" MATCHES "^-L(.:)?[/\\]")
           # Unix search path.
           string(REGEX REPLACE "^-L" "" dir "${arg}")
           list(APPEND implicit_dirs_tmp ${dir})
@@ -66,6 +70,10 @@ function(CMAKE_PARSE_IMPLICIT_LINK_INFO text lib_var dir_var fwk_var log_var obj
           set(lib "${CMAKE_MATCH_1}")
           list(APPEND implicit_libs_tmp ${lib})
           string(APPEND log "    arg [${arg}] ==> lib [${lib}]\n")
+        elseif("${arg}" STREQUAL "-lto_library")
+          # ld argument "-lto_library <path>"
+          set(skip_value_of "${arg}")
+          string(APPEND log "    arg [${arg}] ==> ignore, skip following value\n")
         elseif("${arg}" MATCHES "^-l([^:].*)$")
           # Unix library.
           set(lib "${CMAKE_MATCH_1}")

Tests/CMakeTests/ImplicitLinkInfoTest.cmake.in

@@ -261,6 +261,12 @@ set(mac_absoft_libs "af90math;afio;amisc;absoftmain;af77math;m;mv")
 set(mac_absoft_dirs "/Applications/Absoft11.1/lib;/usr/lib/i686-apple-darwin10/4.2.1;/usr/lib/gcc/i686-apple-darwin10/4.2.1;/usr/lib")
 list(APPEND platforms mac_absoft)
 
+# Xcode 8.3: clang++ dummy.cpp -v
+set(mac_clang_v_text " \"/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld\" -demangle -lto_library /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/libLTO.dylib -no_deduplicate -dynamic -arch x86_64 -macosx_version_min 10.12.0 -syslibroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk -o a.out /var/folders/hc/95l7dhnx459c57g4yg_6yd8c0000gp/T/dummy-384ea1.o -lc++ -lSystem /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/8.1.0/lib/darwin/libclang_rt.osx.a")
+set(mac_clang_v_libs "c++")
+set(mac_clang_v_dirs "")
+list(APPEND platforms mac_clang_v)
+
 #-----------------------------------------------------------------------------
 # Sun