diff --git a/panda/src/display/graphicsEngine.cxx b/panda/src/display/graphicsEngine.cxx
index 9843f818ba..b15474fc3f 100644
--- a/panda/src/display/graphicsEngine.cxx
+++ b/panda/src/display/graphicsEngine.cxx
@@ -192,7 +192,7 @@ GraphicsEngine::
 
 /**
  * Specifies how future objects created via make_gsg(), make_buffer(), and
- * make_window() will be threaded.  This does not affect any already-created
+ * make_output() will be threaded.  This does not affect any already-created
  * objects.
  */
 void GraphicsEngine::
@@ -2154,7 +2154,7 @@ do_draw(GraphicsOutput *win, GraphicsStateGuardian *gsg, DisplayRegion *dr, Thre
 }
 
 /**
- * An internal function called by make_window() and make_buffer() and similar
+ * An internal function called by make_output() and make_buffer() and similar
  * functions to add the newly-created GraphicsOutput object to the engine's
  * list of windows, and to request that the window be opened.
  */
diff --git a/panda/src/display/graphicsOutput.cxx b/panda/src/display/graphicsOutput.cxx
index 850faca771..529a053d00 100644
--- a/panda/src/display/graphicsOutput.cxx
+++ b/panda/src/display/graphicsOutput.cxx
@@ -63,7 +63,7 @@ static CubeFaceDef cube_faces[6] = {
 
 /**
  * Normally, the GraphicsOutput constructor is not called directly; these are
- * created instead via the GraphicsEngine::make_window() function.
+ * created instead via the GraphicsEngine::make_output() function.
  */
 GraphicsOutput::
 GraphicsOutput(GraphicsEngine *engine, GraphicsPipe *pipe,
diff --git a/panda/src/display/graphicsWindow.I b/panda/src/display/graphicsWindow.I
index 186da942ad..08d9d4e615 100644
--- a/panda/src/display/graphicsWindow.I
+++ b/panda/src/display/graphicsWindow.I
@@ -14,7 +14,7 @@
 /**
  * Returns true if the window has not yet been opened, or has been fully
  * closed, false if it is open.  The window is not opened immediately after
- * GraphicsEngine::make_window() is called; nor is it closed immediately after
+ * GraphicsEngine::make_output() is called; nor is it closed immediately after
  * GraphicsEngine::remove_window() is called.  Either operation may take a
  * frame or two.
  */
@@ -34,7 +34,7 @@ is_fullscreen() const {
 
 /**
  * If this flag is false, the window is redrawn only after it has received a
- * recent "unexpose" or "draw" event from the underlying windowing systme.  If
+ * recent "unexpose" or "draw" event from the underlying windowing system.  If
  * this flag is true, the window is redrawn every frame regardless.  Setting
  * this false may prevent the window from redrawing unnecessarily when it is
  * hidden, and may play nicer with other windows on the desktop, but may
diff --git a/panda/src/display/graphicsWindow.cxx b/panda/src/display/graphicsWindow.cxx
index bc1ac40ddc..ae93df2ab1 100644
--- a/panda/src/display/graphicsWindow.cxx
+++ b/panda/src/display/graphicsWindow.cxx
@@ -27,7 +27,7 @@ TypeHandle GraphicsWindow::_type_handle;
 
 /**
  * Normally, the GraphicsWindow constructor is not called directly; these are
- * created instead via the GraphicsEngine::make_window() function.
+ * created instead via the GraphicsEngine::make_output() function.
  */
 GraphicsWindow::
 GraphicsWindow(GraphicsEngine *engine, GraphicsPipe *pipe,
diff --git a/panda/src/display/subprocessWindow.cxx b/panda/src/display/subprocessWindow.cxx
index 21e4b634c2..020dbde898 100644
--- a/panda/src/display/subprocessWindow.cxx
+++ b/panda/src/display/subprocessWindow.cxx
@@ -27,7 +27,7 @@ TypeHandle SubprocessWindow::_type_handle;
 
 /**
  * Normally, the SubprocessWindow constructor is not called directly; these
- * are created instead via the GraphicsEngine::make_window() function.
+ * are created instead via the GraphicsEngine::make_output() function.
  */
 SubprocessWindow::
 SubprocessWindow(GraphicsEngine *engine, GraphicsPipe *pipe,
diff --git a/panda/src/downloader/virtualFileHTTP.cxx b/panda/src/downloader/virtualFileHTTP.cxx
index dcb9036d87..8e392c3d16 100644
--- a/panda/src/downloader/virtualFileHTTP.cxx
+++ b/panda/src/downloader/virtualFileHTTP.cxx
@@ -13,9 +13,12 @@
 
 #include "virtualFileHTTP.h"
 #include "virtualFileMountHTTP.h"
+#include "ramfile.h"
 #include "stringStream.h"
 #include "zStream.h"
 
+#include <iterator>
+
 #ifdef HAVE_OPENSSL
 
 using std::istream;
diff --git a/panda/src/express/patchfile.cxx b/panda/src/express/patchfile.cxx
index bd5c4d9b8f..2c784fb4d2 100644
--- a/panda/src/express/patchfile.cxx
+++ b/panda/src/express/patchfile.cxx
@@ -38,25 +38,39 @@ using std::string;
 // USE_MD5_FOR_HASHTABLE_INDEX_VALUES
 
 /*
- * Patch File Format IF THIS CHANGES, UPDATE installerApplyPatch.cxx IN THE
- * INSTALLER [ HEADER ] 4 bytes  0xfeebfaac ("magic number") (older patch
- * files have a magic number 0xfeebfaab, indicating they are version number
- * 0.) 2 bytes  version number (if magic number == 0xfeebfaac) 4 bytes  length
- * of starting file (if version >= 1) 16 bytes  MD5 of starting file    (if
- * version >= 1) 4 bytes  length of resulting patched file 16 bytes  MD5 of
- * resultant patched file Note that MD5 hashes are written in the order
- * observed by HashVal::read_stream() and HashVal::write_stream(), which is
- * not the normal linear order.  (Each group of four bytes is reversed.)
+ * Patch File Format
+ * IF THIS CHANGES, UPDATE installerApplyPatch.cxx IN THE INSTALLER
+ *
+ * [ HEADER ]
+ *   4 bytes  0xfeebfaac ("magic number")
+ *            (older patch files have a magic number 0xfeebfaab,
+ *            indicating they are version number 0.)
+ *   2 bytes  version number (if magic number == 0xfeebfaac)
+ *   4 bytes  length of starting file (if version >= 1)
+ *  16 bytes  MD5 of starting file    (if version >= 1)
+ *   4 bytes  length of resulting patched file
+ *  16 bytes  MD5 of resultant patched file
+ *
+ * Note that MD5 hashes are written in the order observed by
+ * HashVal::read_stream() and HashVal::write_stream(), which is not
+ * the normal linear order.  (Each group of four bytes is reversed.)
  */
 
 const int _v0_header_length = 4 + 4 + 16;
 const int _v1_header_length = 4 + 2 + 4 + 16 + 4 + 16;
 /*
- * [ ADDCOPY pairs; repeated N times ] 2 bytes  AL = ADD length AL bytes
- * bytes to add 2 bytes  CL = COPY length 4 bytes  offset of data to copy from
- * original file, if CL != 0. If version >= 2, offset is relative to end of
- * previous copy block; if version < 2, offset is relative to beginning of
- * file.  [ TERMINATOR ] 2 bytes  zero-length ADD 2 bytes  zero-length COPY
+ * [ ADD/COPY pairs; repeated N times ]
+ *   2 bytes  AL = ADD length
+ *  AL bytes  bytes to add
+ *   2 bytes  CL = COPY length
+ *   4 bytes  offset of data to copy from original file, if CL != 0.
+ *            If version >= 2, offset is relative to end of previous
+ *            copy block; if version < 2, offset is relative to
+ *            beginning of file.
+ *
+ * [ TERMINATOR ]
+ *   2 bytes  zero-length ADD
+ *   2 bytes  zero-length COPY
  */
 
 // Defines
@@ -249,11 +263,14 @@ read_header(const Filename &patch_file) {
 }
 
 /**
- * Perform one buffer's worth of patching Returns EU_ok while patching Returns
- * EU_success when done If error happens will return one of: EU_error_abort :
- * Patching has not been initiated EU_error_file_invalid : file is corrupted
- * EU_error_invalid_checksum : incompatible patch file
- * EU_error_write_file_rename : could not rename file
+ * Perform one buffer's worth of patching.
+ * Returns one of the following values:
+ * @li @c EU_ok : while patching
+ * @li @c EU_success : when done
+ * @li @c EU_error_abort : Patching has not been initiated
+ * @li @c EU_error_file_invalid : file is corrupted
+ * @li @c EU_error_invalid_checksum : incompatible patch file
+ * @li @c EU_error_write_file_rename : could not rename file
  */
 int Patchfile::
 run() {