diff --git a/engine/qclib/qcc.h b/engine/qclib/qcc.h
index 204164c8e..6a5dbe7d5 100644
--- a/engine/qclib/qcc.h
+++ b/engine/qclib/qcc.h
@@ -342,6 +342,7 @@ typedef struct QCC_def_s
 	pbool shared;
 	pbool saved;
 	pbool isstatic;
+	pbool subscoped_away;
 
 	temp_t *temp;
 } QCC_def_t;
@@ -468,6 +469,7 @@ extern pbool keyword_union;	//you surly know what a union is!
 extern pbool keywords_coexist;
 extern pbool output_parms;
 extern pbool autoprototype;
+extern pbool pr_subscopedlocals;
 extern pbool flag_ifstring;
 extern pbool flag_iffloat;
 extern pbool flag_acc;
diff --git a/engine/qclib/qccmain.c b/engine/qclib/qccmain.c
index aaba53dbe..9436a8e76 100644
--- a/engine/qclib/qccmain.c
+++ b/engine/qclib/qccmain.c
@@ -238,6 +238,7 @@ compiler_flag_t compiler_flag[] = {
 	{&flag_filetimes,		0,				"filetimes",	"Check Filetimes",		"Recompiles the progs only if the file times are modified."},
 	{&flag_fasttrackarrays,	FLAG_MIDCOMPILE|FLAG_ASDEFAULT,"fastarrays","fast arrays where possible",	"Generates extra instructions inside array handling functions to detect engine and use extension opcodes only in supporting engines.\nAdds a global which is set by the engine if the engine supports the extra opcodes. Note that this applies to all arrays or none."},
 	{&flag_assume_integer,	FLAG_MIDCOMPILE,"assumeint",	"Assume Integers",		"Numerical constants are assumed to be integers, instead of floats."},
+	{&pr_subscopedlocals,		FLAG_MIDCOMPILE,		"subscope",	"Subscoped Locals",		"Restrict the scope of locals to the block they are actually defined within, as in C."},
 	{NULL}
 };
 
@@ -2957,6 +2958,7 @@ memset(pr_immediate_string, 0, sizeof(pr_immediate_string));
 		printf ("-Wall to give a stupid number of warnings\n");
 		printf ("-Ttarget to set a output format\n");
 		printf ("-Fautoproto to enable automatic prototyping\n");
+		printf ("-Fsubscope to make locals specific to their subscope\n");
 
 		qcc_compileactive = false;
 		return;