merging RELEASE branch to STABLE branch, r71932 through r72100

svn:revision:72101
svn:branch:STABLE
svn:account:starseeker

CMakeLists.txt

@@ -2590,6 +2590,18 @@ BRLCAD_TYPE_SIZE("uint64_t" "")
 BRLCAD_TYPE_SIZE("uintptr_t" "")
 BRLCAD_TYPE_SIZE("sig_t" "signal.h")
 
+# If we have an off_t that's too small, we'll need to deal with that in order to
+# support large files successfully.
+if (CMAKE_SIZEOF_VOID_P AND HAVE_OFF_T)
+  if (${CMAKE_SIZEOF_VOID_P} GREATER ${HAVE_OFF_T})
+    if (NOT DEFINED OFF_T_SIZE_MISMATCH)
+      message("Note: platform void pointer size (${CMAKE_SIZEOF_VOID_P}) is greater than off_t size (${HAVE_OFF_T})")
+    endif (NOT DEFINED OFF_T_SIZE_MISMATCH)
+    CONFIG_H_APPEND(BRLCAD "#define OFF_T_SIZE_MISMATCH 1\n")
+    set(OFF_T_SIZE_MISMATCH  1 CACHE INTERNAL "Have off_t that is too small for platform.")
+  endif (${CMAKE_SIZEOF_VOID_P} GREATER ${HAVE_OFF_T})
+endif (CMAKE_SIZEOF_VOID_P AND HAVE_OFF_T)
+
 # see if we have a TLS intrinsic, first check C++11 compliance
 check_cxx_source_compiles("static thread_local int i = 0; int main() { return i; }" HAVE_THREAD_LOCAL)
 if (HAVE_THREAD_LOCAL)