Merge pull request #64 from fangohr/add-support-linux-arm64

Support to enable compilation of OOMMF on Linux with ARM64 hardware

oommf/config/names/linux-arm64.tcl

@@ -0,0 +1,43 @@
+# linux-arm64.tcl
+#
+# Defines the Oc_Config name 'linux-arm64' to indicate the Linux
+# operating system running on the arm64 architecture.
+
+Oc_Config New _ [string tolower [file rootname [file tail [info script]]]] {
+   global tcl_platform
+
+   if {[llength [info commands LocalNameCheck]] == 0} {
+      # If local/mynames.tcl exists and defines LocalNameCheck,
+      # then use that.
+      set fn [file join \
+                 [file dirname [file dirname [file dirname [info script]]]] \
+                 config names local mynames.tcl]
+      if {[file readable $fn]} {
+         catch {source $fn}
+      }
+   }
+   if {[llength [info commands LocalNameCheck]] == 1} {
+      set localname [LocalNameCheck]
+      if {![string match {} $localname]} {
+         set checkname [$this GetValue platform_name]
+         return [expr {![string compare $checkname $localname]}]
+      }
+   }
+
+   # Otherwise, fall back on default rules
+   if {![regexp -nocase -- linux $tcl_platform(os)]} {
+      return 0
+   }
+   if {![string match aarch64 $tcl_platform(machine)]} {
+      return 0
+   }
+   if {[info exists tcl_platform(wordSize)] &&
+       $tcl_platform(wordSize) != 8} {
+      return 0
+   }
+   if {[info exists tcl_platform(pointerSize)] &&
+       $tcl_platform(pointerSize) != 8} {
+      return 0
+   }
+   return 1
+}