WITH_VC_REDIST does not need exporting. it is a SCPDEFS only info

configure.in

@@ -4472,7 +4472,7 @@ fi
 AC_SUBST([JITC_PROCESSOR_TYPE])
 
 if test $_os = "WINNT"; then
-    WITH_VC_REDIST="TRUE"
+    SCPDEFS="$SCPDEFS -DWITH_VC_REDIST"
 fi
 AC_SUBST(WITH_VC_REDIST)
 

scp2/source/ooo/makefile.mk

@@ -245,10 +245,6 @@ SCPDEFS+=-DSYSTEM_PYTHON
 SCPDEFS+=-DSYSTEM_LIBEXTTEXTCAT
 .ENDIF
 
-.IF "$(WITH_VC_REDIST)" == "TRUE"
-SCPDEFS+=-DWITH_VC_REDIST
-.ENDIF
-
 .IF "$(MINGW_GCCDLL)"!=""
 SCPDEFS+=-DMINGW_GCCDLL=\""$(MINGW_GCCDLL)"\"
 .ENDIF

set_soenv.in

@@ -590,9 +590,6 @@ elsif ( $platform =~ m/mingw32/ )
 
 }
 
-if ("@WITH_VC_REDIST@" eq "TRUE") {
-ToFile( "WITH_VC_REDIST", "TRUE",  "e" );
-}
 ToFile( "PERL",              $PERL,              "e" );
 ToFile( "SOLARVER",          $SOLARVER,          "e" );
 ToFile( "SOLARVERSION",      $SOLARVERSION,      "e" );