See if we can cobble together a CMake target to test the dll types of…

… bext outputs, to try and catch if a given project's build logic isn't giving us binaries built using the right config.

CMake/DllTypeCheck.cmake

@@ -0,0 +1,84 @@
+#               D L L T Y P E C H E C K . C M A K E
+# BRL-CAD
+#
+# Copyright (c) 2024 United States Government as represented by
+# the U.S. Army Research Laboratory.
+#
+# 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. The name of the author may not be used to endorse or promote
+# products derived from this software without specific prior written
+# permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
+#
+###
+# Utility function to check the type of dlls built by bext.
+
+include(CMakeParseArguments)
+
+function(DllTypeCheck btype dlldir)
+  if (NOT EXISTS "${dlldir}")
+    return()
+  endif (NOT EXISTS "${dlldir}")
+  find_program(DUMPBIN_EXEC dumpbin)
+  if (NOT DUMPBIN_EXEC)
+    return()
+  endif (NOT DUMPBIN_EXEC)
+  file(GLOB dll_files RELATIVE "${dlldir}" "${dlldir}/*.dll")
+  set(non_match 0)
+  foreach(dlf ${dll_files})
+    # dumpbin doesn't like CMake style paths
+    file(TO_NATIVE_PATH "${dlf}" TBFN)
+    # https://stackoverflow.com/a/28304716/2037687
+    execute_process(COMMAND ${DUMPBIN_EXEC} /dependents ${TBFN}
+      OUTPUT_VARIABLE DB_OUT
+      ERROR_VARIABLE DB_OUT)
+    if ("${btype}" STREQUAL "Release")
+      if ("${DB_OUT}" MATCHES ".*MSVCP[0-9]*d.dll.*" OR "${DB_OUT}" MATCHES ".*MSVCP[0-9]*D.dll.*")
+	set(non_match 1)
+        message("Release build specified, but ${dlf} is built as Debug.")
+      endif ("${DB_OUT}" MATCHES ".*MSVCP[0-9]*d.dll.*" OR "${DB_OUT}" MATCHES ".*MSVCP[0-9]*D.dll.*")
+    endif ("${btype}" STREQUAL "Release")
+    if ("${btype}" STREQUAL "Debug")
+      if (NOT "${DB_OUT}" MATCHES ".*MSVCP[0-9]*d.dll.*" AND NOT "${DB_OUT}" MATCHES ".*MSVCP[0-9]*D.dll.*")
+	set(non_match 1)
+        message("Debug build specified, but ${dlf} is built as Release.")
+      endif (NOT "${DB_OUT}" MATCHES ".*MSVCP[0-9]*d.dll.*" AND NOT "${DB_OUT}" MATCHES ".*MSVCP[0-9]*D.dll.*")
+    endif ("${btype}" STREQUAL "Debug")
+  endforeach(dlf ${dll_files})
+  if (non_match)
+    message(FATAL_ERROR "Found non-matching dll files - check build logic.")
+  endif (non_match)
+endfunction(DllTypeCheck btype)
+
+if (CMAKE_BUILD_TYPE AND DLL_DIR)
+  DllTypeCheck(${CMAKE_BUILD_TYPE} ${DLL_DIR})
+endif (CMAKE_BUILD_TYPE AND DLL_DIR)
+
+# Local Variables:
+# tab-width: 8
+# mode: cmake
+# indent-tabs-mode: t
+# End:
+# ex: shiftwidth=2 tabstop=8

CMakeLists.txt

@@ -718,6 +718,12 @@ file(APPEND "${CMAKE_BINARY_DIR}/bext.dot" "\n}\n")
 
 message("Output directory: ${CMAKE_INSTALL_PREFIX}/${BEXT_ROOT}")
 
+#---------------------------------------------------------------------
+# On Windows, if we get dlls built for the wrong configuration it can
+# cause problems.  Define a utility target to check
+add_custom_target(dllcheck ${CMAKE_COMMAND} -DCMAKE_BUILD_TYPE=\"${CMAKE_BUILD_TYPE}\" -DDLL_DIR=\"${CMAKE_INSTALL_PREFIX}/bext_output/install/bin\" -P ${CMAKE_SOURCE_DIR}/CMake/DllTypeCheck.cmake)
+
+
 # Local Variables:
 # tab-width: 8
 # mode: cmake