Merge branch 'tribits_github_snapshot' into tribits-299-modern-cmake-…

…targets-1

I resolved the confict in:

* cmake/tribits/core/package_arch/TribitsConstants.cmake

by going with what comes from the TriBITS GitHub snapshot (with the lower-case
set()).

cmake/tribits/ReleaseNotes.txt

@@ -2,6 +2,26 @@
 Release Notes for TriBITS
 ----------------------------------------
 
+2021/10/11:
+
+(*) MAJOR: The `<Package>Config.cmake` for each enabled package generated in
+    the build directory tree have been moved from
+    `<buildDir>/packages/<packageDir>/` to
+    `<buildDir>/cmake_packages/<PackageName>/`.  This makes it easy for
+    `find_package(<PackageName>)` to fine these files by simply adding the
+    directory ``<buildDir>/cmake_packages` to `CMAKE_PREFIX_PATH` and then
+    `<Package>Config.cmake` for any enabled package will be found
+    automatically found by CMake.
+
+2021/09/13:
+
+(*) MAJOR: Support for generation and installation of Makefile.export.* files
+    has been removed along with the cache variable
+    <Project>_ENABLE_EXPORT_MAKEFILES.  This is to allow the refactoring of
+    TriBITS to use modern CMake targets that propagate all information and
+    removing complex dependency tracking inforamtion from TriBITS (see
+    TriBITSPub/TriBITS#63 and TriBITSPub/TriBITS#299).
+
 2021/06/17:
 
 (*) MINOR: Added tool tribits/python_utils/lower_case_cmake.py and driver

cmake/tribits/TriBITS.cmake

@@ -1,4 +1,42 @@
+# @HEADER
+# ************************************************************************
 #
+#            TriBITS: Tribal Build, Integrate, and Test System
+#                    Copyright 2013 Sandia Corporation
+#
+# Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
+# the U.S. Government retains certain rights in this software.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# 3. Neither the name of the Corporation nor the names of the
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# ************************************************************************
+# @HEADER
+
 # Top-level include file that pulls in TriBITS so it can be used by a project.
 # A Project's top-level CMakeLists.cmake file just does:
 #
@@ -7,7 +45,6 @@
 # and then they can call:
 #
 #    tribits_project()
-#
 
 if (${PROJECT_NAME}_TRIBITS_DIR)
   set(TRIBITS_BASE_DIR_LOCAL "${${PROJECT_NAME}_TRIBITS_DIR}")

cmake/tribits/core/installation/TribitsPackageConfigTemplate.cmake.in

@@ -4,7 +4,6 @@
 #            TriBITS: Tribal Build, Integrate, and Test System
 #                    Copyright 2013 Sandia Corporation
 #
-#
 # Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
 # the U.S. Government retains certain rights in this software.
 #
@@ -46,7 +45,7 @@
 #
 ##############################################################################
 
-${DEFINE_CMAKE_CURRENT_LIST_DIR_CODE_SNIPPET}
+include_guard()
 
 ## ---------------------------------------------------------------------------
 ## Compilers used by ${PROJECT_NAME}/${PACKAGE_NAME} build

cmake/tribits/core/installation/TribitsProjectConfigTemplate.cmake.in

@@ -46,10 +46,7 @@
 #
 ##############################################################################
 
-#
-# Ensure CMAKE_CURRENT_LIST_DIR is usable.
-#
-${DEFINE_CMAKE_CURRENT_LIST_DIR_CODE_SNIPPET}
+include_guard()
 
 ## ---------------------------------------------------------------------------
 ## Compilers used by ${PROJECT_NAME} build
@@ -106,7 +103,7 @@ endif()
 # Initialize ${PROJECT_NAME}_FOUND with true, and set it to FALSE if any of
 # the required components wasn't found.
 set(${PROJECT_NAME}_FOUND TRUE)
-foreach(comp ${PDOLLAR}{COMPONENTS_LIST})
+foreach (comp IN ITEMS ${PDOLLAR}{COMPONENTS_LIST})
   set(
     INCLUDE_FILE
     ${PDOLLAR}{CMAKE_CURRENT_LIST_DIR}/../${PDOLLAR}{comp}/${PDOLLAR}{comp}Config.cmake
@@ -198,5 +195,30 @@ set(${PROJECT_NAME}_Fortran_IMPLICIT_LINK_LIBRARIES "${CMAKE_Fortran_IMPLICIT_LI
 ## The packages enabled for this project
 set(${PROJECT_NAME}_PACKAGE_LIST "${FULL_PACKAGE_SET}")
 
+## The selected packages for this project
+set(${PROJECT_NAME}_SELECTED_PACKAGE_LIST "${PDOLLAR}{COMPONENTS_LIST}")
+
 ## The TPLs enabled for this project
 set(${PROJECT_NAME}_TPL_LIST "${FULL_TPL_SET}")
+
+## ---------------------------------------------------------------------------
+## Modern CMake (IMPORTED) targets
+## ---------------------------------------------------------------------------
+
+# ${PROJECT_NAME}::all_libs  (Does *not* depend on COMPONENTS)
+set(${PROJECT_NAME}_ALL_PACKAGES_TARGETS)
+foreach (pkg IN ITEMS ${FULL_PACKAGE_SET})
+  list(APPEND ${PROJECT_NAME}_ALL_PACKAGES_TARGETS ${PDOLLAR}{pkg}::all_libs)
+endforeach()
+add_library(${PROJECT_NAME}::all_libs IMPORTED INTERFACE GLOBAL)
+target_link_libraries(${PROJECT_NAME}::all_libs
+  INTERFACE ${PDOLLAR}{${PROJECT_NAME}_ALL_PACKAGES_TARGETS} )
+
+# ${PROJECT_NAME}::all_selected_libs  (Depend on COMPONENTS)
+set(${PROJECT_NAME}_ALL_SELECTED_PACKAGES_TARGETS)
+foreach (pkg IN ITEMS ${PDOLLAR}{COMPONENTS_LIST})
+  list(APPEND ${PROJECT_NAME}_ALL_SELECTED_PACKAGES_TARGETS ${PDOLLAR}{pkg}::all_libs)
+endforeach()
+add_library(${PROJECT_NAME}::all_selected_libs IMPORTED INTERFACE GLOBAL)
+target_link_libraries(${PROJECT_NAME}::all_selected_libs
+  INTERFACE ${PDOLLAR}{${PROJECT_NAME}_ALL_SELECTED_PACKAGES_TARGETS} )

cmake/tribits/core/installation/add_project_install_commands/CMakeLists.txt

@@ -1,9 +1,8 @@
 set(tribits_install_src
   "${${PROJECT_NAME}_TRIBITS_DIR}/${TRIBITS_CMAKE_INSTALLATION_FILES_DIR}")
 
-if((${PROJECT_NAME}_ENABLE_INSTALL_CMAKE_CONFIG_FILES
-    OR ${PROJECT_NAME}_ENABLE_EXPORT_MAKEFILES)
-  AND NOT ${PROJECT_NAME}_ENABLE_INSTALLATION_TESTING
+if ( ${PROJECT_NAME}_ENABLE_INSTALL_CMAKE_CONFIG_FILES
+     AND NOT ${PROJECT_NAME}_ENABLE_INSTALLATION_TESTING
   )
 
   include(TribitsWriteClientExportFiles)