Build fix

Detail:
  Some users reported problems building the sources if they had other
  installations of perl on their build machine. The build system was using a
  mixture of "perl" and "<Perl$Dir>.perl" to invoke the interpreter, and
  sometimes but not always using "do" to expand system variables on the
  command line. This has now been standardised to use "do <Perl$Dir>.perl in
  all cases, and where possible, to use the makefile macro ${PERL}.
Admin:
  Checked that a Tungsten build still works on a build machine with no other
  perl installation. "perl" was aliased to an error to ensure it wasn't used.

Version 4.73. Tagged as 'BuildSys-4_73'

ImageName/!NewMajor,feb

@@ -12,4 +12,4 @@
 | See the License for the specific language governing permissions and
 | limitations under the License.
 |
-perl <obey$dir>.ImageName -newmajor -test
+do <Perl$Dir>.perl <obey$dir>.ImageName -newmajor -test

ImageName/!NewMinor,feb

@@ -12,4 +12,4 @@
 | See the License for the specific language governing permissions and
 | limitations under the License.
 |
-perl <obey$dir>.ImageName -newminor -test
+do <Perl$Dir>.perl <obey$dir>.ImageName -newminor -test

ImageName/!NewVer,feb

@@ -12,4 +12,4 @@
 | See the License for the specific language governing permissions and
 | limitations under the License.
 |
-perl <obey$dir>.ImageName -test
+do <Perl$Dir>.perl <obey$dir>.ImageName -test

ImageName/!Query,feb

@@ -12,5 +12,5 @@
 | See the License for the specific language governing permissions and
 | limitations under the License.
 |
-perl <obey$dir>.ImageName -query -test
+do <Perl$Dir>.perl <obey$dir>.ImageName -query -test
 echo Next version: <Build$ImageName>
\ No newline at end of file

Makefiles/StdTools

@@ -41,13 +41,13 @@ ECHO            = echo
 FILTERCOMP      = ${PERL} Build:FilterComp
 FILTERCOMP2     = ${PERL} Build:FilterComp2
 GETVERSION      = ${PERL} Build:GetVersion
-HDR2H           = perl Build:Hdr2H
+HDR2H           = ${PERL} Build:Hdr2H
 LD              = link
 MAKE            = amu
 MODGEN          = modgen
 MODSQZ          = modsqz
 NOP             = @|
-PERL            = ${DO} perl
+PERL            = ${DO} <Perl$Dir>.perl
 RESGEN          = resgen
 RM              = remove
 SETTYPE         = settype

VersionNum

-/* (4.72)
+/* (4.73)
  *
  * This file is automatically maintained by srccommit, do not edit manually.
  * Last processed by srccommit version: 1.1.
  *
  */
-#define Module_MajorVersion_CMHG        4.72
+#define Module_MajorVersion_CMHG        4.73
 #define Module_MinorVersion_CMHG        
-#define Module_Date_CMHG                10 May 2009
+#define Module_Date_CMHG                07 Jun 2009
 
-#define Module_MajorVersion             "4.72"
-#define Module_Version                  472
+#define Module_MajorVersion             "4.73"
+#define Module_Version                  473
 #define Module_MinorVersion             ""
-#define Module_Date                     "10 May 2009"
+#define Module_Date                     "07 Jun 2009"
 
-#define Module_ApplicationDate          "10-May-09"
+#define Module_ApplicationDate          "07-Jun-09"
 
 #define Module_ComponentName            "BuildSys"
 #define Module_ComponentPath            "castle/RiscOS/BuildSys"
 
-#define Module_FullVersion              "4.72"
-#define Module_HelpVersion              "4.72 (10 May 2009)"
-#define Module_LibraryVersionInfo       "4:72"
+#define Module_FullVersion              "4.73"
+#define Module_HelpVersion              "4.73 (07 Jun 2009)"
+#define Module_LibraryVersionInfo       "4:73"