diff --git a/libsrc/geos/common/.cvsignore b/libsrc/geos/common/.cvsignore
index 39b634ce5..157cf12d4 100644
--- a/libsrc/geos/common/.cvsignore
+++ b/libsrc/geos/common/.cvsignore
@@ -1,3 +1,4 @@
 _afailed.s
+_poserror.s
 abort.s
 perror.s
diff --git a/libsrc/geos/common/_poserror.c b/libsrc/geos/common/_poserror.c
new file mode 100644
index 000000000..80f9eda06
--- /dev/null
+++ b/libsrc/geos/common/_poserror.c
@@ -0,0 +1,17 @@
+/*
+ * _poserror.c
+ *
+ * Maciej 'YTM/Elysium' Witkowiak, 25.04.2003
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <geos.h>
+
+void __fastcall__ _poserror (const char* msg)
+{
+
+    DlgBoxOk(msg,_stroserror(_oserror));
+
+}