Hi,
The diff below adds a patch by uwe@, taken from his git-cvs repo.
OK?
Index: Makefile
===================================================================
RCS file: /cvs/ports/devel/py-rcsparse/Makefile,v
retrieving revision 1.11
diff -u -p -u -p -r1.11 Makefile
--- Makefile 11 Mar 2013 10:50:26 -0000 1.11
+++ Makefile 15 May 2013 13:54:23 -0000
@@ -8,6 +8,7 @@ VERSION= 20090807
DISTNAME= ${CHANGESET}
EXTRACT_SUFX= .tar.bz2
PKGNAME= rcsparse-${VERSION}
+REVISION= 0
CATEGORIES= devel
PERMIT_PACKAGE_CDROM= Yes
Index: patches/patch-rcsparse_c
===================================================================
RCS file: patches/patch-rcsparse_c
diff -N patches/patch-rcsparse_c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-rcsparse_c 15 May 2013 13:54:23 -0000
@@ -0,0 +1,61 @@
+$OpenBSD$
+
+Free the fulltext of unmatched revisions while searching for the
+requested revision to avoid exhausting all available memory during
+the search.
+
+--- rcsparse.c.orig Fri Aug 7 00:21:50 2009
++++ rcsparse.c Wed May 15 15:22:45 2013
+@@ -937,7 +937,7 @@ rcscheckout(struct rcsfile *rcs, const char *revstr, s
+ {
+ struct rcsrev searchrev;
+ struct rcstoken searchtok;
+- struct rcsrev *currcsrev;
++ struct rcsrev *currcsrev, *curtextrev;
+ struct stringinfo *curtext;
+ struct rcstoken *nextrev;
+ char *branchrev, *tmpstr;
+@@ -946,6 +946,7 @@ rcscheckout(struct rcsfile *rcs, const char *revstr, s
+ if (rcsparsetree(rcs) < 0)
+ return NULL;
+
++ curtextrev = NULL;
+ curtext = NULL;
+ nextrev = NULL;
+ branchrev = NULL;
+@@ -986,6 +987,7 @@ rcscheckout(struct rcsfile *rcs, const char *revstr, s
+
+ if (curtext == NULL) {
+ curtext = currcsrev->rawtext;
++ curtextrev = currcsrev;
+ } else {
+ if (nextrev == NULL)
+ goto fail;
+@@ -995,7 +997,12 @@ rcscheckout(struct rcsfile *rcs, const char *revstr, s
+
+ if (currcsrev->text) {
+ /* Was expanded before */
++ if (curtextrev != NULL) {
++ free(curtextrev->text);
++ curtextrev->text = NULL;
++ }
+ curtext = currcsrev->text;
++ curtextrev = currcsrev;
+ } else {
+ if (currcsrev->rawtext == NULL)
+ goto fail;
+@@ -1004,9 +1011,12 @@ rcscheckout(struct rcsfile *rcs, const char *revstr, s
+ goto fail;
+ if (applydelta(&currcsrev->text,
currcsrev->rawtext) < 0)
+ goto fail;
+- free(currcsrev->rawtext);
+- currcsrev->rawtext = NULL;
++ if (curtextrev != NULL) {
++ free(curtextrev->text);
++ curtextrev->text = NULL;
++ }
+ curtext = currcsrev->text;
++ curtextrev = currcsrev;
+ }
+ }
+
