diff -up ogdi-3.2.0.beta2/ogdi/datum_driver/usa/dtusa.c.projfix ogdi-3.2.0.beta2/ogdi/datum_driver/usa/dtusa.c
--- ogdi-3.2.0.beta2/ogdi/datum_driver/usa/dtusa.c.projfix	2012-08-19 21:27:41.632952279 -0500
+++ ogdi-3.2.0.beta2/ogdi/datum_driver/usa/dtusa.c	2012-08-19 21:27:47.343951832 -0500
@@ -124,7 +124,7 @@ int dyn_nad_init(privdata, table)
     strcat(pathfile,"/");  
     strcat(pathfile,table);  
 
-    ptr->dtptr = nad_init(pathfile);
+    ptr->dtptr = nad_init(pj_get_default_ctx(), pathfile);
     if (ptr->dtptr == NULL) {
       ptr->count--;
       return FALSE;
diff -up ogdi-3.2.0.beta2/proj/nad2nad.c.projfix ogdi-3.2.0.beta2/proj/nad2nad.c
--- ogdi-3.2.0.beta2/proj/nad2nad.c.projfix	2012-08-19 21:28:18.943950482 -0500
+++ ogdi-3.2.0.beta2/proj/nad2nad.c	2012-08-19 21:29:06.057949242 -0500
@@ -74,7 +74,7 @@ set_zone(int in, struct IO_CON *io) {
 
 	if (io->hp) {
 		io->t83 = 1;
-		if (!(htab = nad_init(io->hp)))
+		if (!(htab = nad_init(pj_get_default_ctx(), io->hp)))
 			emess(1,"hp datum file: %s, failed: %s", io->hp,
 				pj_strerrno(pj_errno));
 	}
@@ -109,7 +109,7 @@ setup() {
 	if (czone) {
 		if (!input.hp && !output.hp && input.t83 == output.t83)
 			emess(1,"identical datums");
-		if (!(ctab = nad_init(czone)))
+		if (!(ctab = nad_init(pj_get_default_ctx(), czone)))
 			emess(1,"datum file: %s, failed: %s", czone, pj_strerrno(pj_errno));
 	} else if (input.t83 != output.t83)
 		emess(1,"conversion region (-r) not specified");
diff -up ogdi-3.2.0.beta2/proj/nad_init.c.projfix ogdi-3.2.0.beta2/proj/nad_init.c
--- ogdi-3.2.0.beta2/proj/nad_init.c.projfix	2012-08-19 21:29:27.827948522 -0500
+++ ogdi-3.2.0.beta2/proj/nad_init.c	2012-08-19 21:32:24.578942144 -0500
@@ -8,18 +8,17 @@ static const char SCCSID[]="@(#)nad_init
 #include <errno.h>
 extern FILE *pj_open_lib(char *, char *);
 	struct CTABLE *
-nad_init(char *name) {
+nad_init(projCtx ctx, char *name) {
 	char fname[FILENAME_MAX+1];
 	struct CTABLE *ct;
 	FILE *fid;
 	size_t i;
 
-	errno = pj_errno = 0;
+	ctx->last_errno = 0;
 	if (!(fid = pj_open_lib(name, "rb"))) {
 	  strcpy(fname, "nad2783/");
 	  strcat(fname, name);
-	  if (!(fid = pj_open_lib(fname, "rb"))) {
-	    pj_errno = errno;
+	  if (!(fid = pj_open_lib(ctx, fname, "rb"))) { 
 	    return 0;
 	  }
 	}
diff -up ogdi-3.2.0.beta2/proj/projects.h.projfix ogdi-3.2.0.beta2/proj/projects.h
--- ogdi-3.2.0.beta2/proj/projects.h.projfix	2012-08-19 21:32:44.054941484 -0500
+++ ogdi-3.2.0.beta2/proj/projects.h	2012-08-19 21:33:22.313939807 -0500
@@ -210,7 +210,7 @@ int bch2bps(UV a, UV b, UV **, int, int)
 /* nadcon related protos */
 LP nad_interp(LP, struct CTABLE *);
 LP nad_cvt(LP, int, struct CTABLE *);
-struct CTABLE *nad_init(char *);
+struct CTABLE *nad_init(projCtx ctx, char *);
 void nad_free(struct CTABLE *);
 
 #endif /* end of basic projections header */