[cmake] sync with llnl/Umpire#1033 to be able to use w/ C++20

Author: evaleev

CMakeLists.txt

@@ -231,6 +231,15 @@ endif()
 if(NOT CMAKE_EXE_LINKER_FLAGS OR NOT DEFINED CMAKE_EXE_LINKER_FLAGS)
   set(CMAKE_EXE_LINKER_FLAGS "$ENV{LDFLAGS}")
 endif()
+
+# Detect libc++ linker mismatch (e.g. Homebrew LLVM headers vs system libc++)
+include(CheckCXXFeatures)
+if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+  vgkit_check_libcxx_linker_mismatch(MODIFY_GLOBAL_FLAGS)
+else()
+  vgkit_check_libcxx_linker_mismatch()
+endif()
+
 if (NOT CMAKE_CXX_COMPILER)
   message(FATAL_ERROR "C++ compiler not found")
 endif()

external/versions.cmake

@@ -1,7 +1,7 @@
 # for each dependency track both current and previous id (the variable for the latter must contain PREVIOUS)
 # to be able to auto-update them
 
-set(TA_TRACKED_VGCMAKEKIT_TAG 4c949fd7ccfe4b4f0e103288a5c0f557c6e740c0)
+set(TA_TRACKED_VGCMAKEKIT_TAG 256d9462bb765787f5acb69be154b26d6efba8b6)
 
 # N.B. may need to update INSTALL.md manually with the CUDA-specific version
 set(TA_TRACKED_EIGEN_VERSION 3.3.5)
@@ -23,8 +23,8 @@ set(TA_TRACKED_BTAS_PREVIOUS_TAG 1cfcb12647c768ccd83b098c64cda723e1275e49)
 set(TA_TRACKED_LIBRETT_TAG 6eed30d4dd2a5aa58840fe895dcffd80be7fbece)
 set(TA_TRACKED_LIBRETT_PREVIOUS_TAG 354e0ccee54aeb2f191c3ce2c617ebf437e49d83)
 
-set(TA_TRACKED_UMPIRE-CXX-ALLOCATOR_TAG cbb08408b1cfbbacc24992e36f52edb3a29bdedc)
-set(TA_TRACKED_UMPIRE-CXX-ALLOCATOR_PREVIOUS_TAG a48ad360e20b9733263768b54aa24afe5894faa4)
+set(TA_TRACKED_UMPIRE-CXX-ALLOCATOR_TAG eb9dddbd27c6db9d154d8c9e214f79debd4ebe55)
+set(TA_TRACKED_UMPIRE-CXX-ALLOCATOR_PREVIOUS_TAG cbb08408b1cfbbacc24992e36f52edb3a29bdedc)
 
 set(TA_TRACKED_SCALAPACKPP_TAG 6397f52cf11c0dfd82a79698ee198a2fce515d81)
 set(TA_TRACKED_SCALAPACKPP_PREVIOUS_TAG 711ef363479a90c88788036f9c6c8adb70736cbf )