diff --git a/doc/asn1c-usage.html b/doc/asn1c-usage.html
index 106ebba..239e77f 100644
--- a/doc/asn1c-usage.html
+++ b/doc/asn1c-usage.html
@@ -430,11 +430,15 @@
 <FONT SIZE="-1">Enable  unnamed  unions  in the definitions of target language's
 structures.</FONT></TD></TR>
 </TBODY><TBODY>
+<TR><TD VALIGN=BASELINE ALIGN=LEFT NOWRAP><FONT SIZE="-1">-fskeletons-copy</FONT></TD><TD VALIGN=BASELINE ALIGN=LEFT WIDTH="216">
+<FONT SIZE="-1">Copy support files rather than symlink them.</FONT></TD></TR>
+</TBODY><TBODY>
 <TR><TD VALIGN=BASELINE ALIGN=LEFT NOWRAP><FONT SIZE="-1">-ftypes88</FONT></TD><TD VALIGN=BASELINE ALIGN=LEFT WIDTH="216">
 <FONT SIZE="-1">Pretend to support only ASN.1:1988 embedded types. Certain
 reserved words, such as UniversalString and BMPString, become ordinary
 type references and may be redefined by the specification.</FONT></TD></TR>
 </TBODY><TBODY>
+
 <TR><TD VALIGN=BASELINE ALIGN=LEFT NOWRAP><B><FONT SIZE="-1">Output Options</FONT></B></TD><TD VALIGN=BASELINE ALIGN=LEFT WIDTH="216">
 <B><FONT SIZE="-1">Description</FONT></B></TD></TR>
 <TR><TD VALIGN=BASELINE ALIGN=LEFT NOWRAP>
diff --git a/doc/asn1c-usage.lyx b/doc/asn1c-usage.lyx
index 3c6ed97..205b9dc 100644
--- a/doc/asn1c-usage.lyx
+++ b/doc/asn1c-usage.lyx
@@ -71,7 +71,7 @@
 \backslash 
 lhead{This document describes 
 \backslash 
-href{http://lionet.info/asn1c}{asn1c-0.9.18}}
+href{http://lionet.info/asn1c}{asn1c-0.9.19}}
 \layout Standard
 
 \backslash 
@@ -451,7 +451,7 @@
 
 
 \begin_inset  Tabular
-<lyxtabular version="3" rows="26" columns="2">
+<lyxtabular version="3" rows="27" columns="2">
 <features islongtable="true">
 <column alignment="left" valignment="top" leftline="true" width="0">
 <column alignment="block" valignment="top" leftline="true" rightline="true" width="3in">
@@ -836,6 +836,8 @@
 
 \layout Standard
 
+
+\size small 
 -findirect-choice
 \end_inset 
 </cell>
@@ -844,6 +846,8 @@
 
 \layout Standard
 
+
+\size small 
 When generating code for a CHOICE type, compile the CHOICE members as indirect
  pointers instead of declaring them inline.
  Consider using this option together with 
@@ -861,6 +865,8 @@
 
 \layout Standard
 
+
+\size small 
 -fknown-extern-type=
 \emph on 
 <name>
@@ -871,6 +877,8 @@
 
 \layout Standard
 
+
+\size small 
 Pretend the specified type is known.
  The compiler will assume the target language source files for the given
  type have been provided manually.
@@ -969,6 +977,28 @@
 \end_inset 
 </cell>
 </row>
+<row topline="true">
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\layout Standard
+
+
+\size small 
+-fskeletons-copy
+\end_inset 
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\layout Standard
+
+
+\size small 
+Copy support files rather than symlink them.
+\end_inset 
+</cell>
+</row>
 <row topline="true" bottomline="true">
 <cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
 \begin_inset Text
diff --git a/doc/asn1c-usage.pdf b/doc/asn1c-usage.pdf
index 6efd7e2..3d188cf 100644
--- a/doc/asn1c-usage.pdf
+++ b/doc/asn1c-usage.pdf
Binary files differ