2 files changed, 36 insertions, 2 deletions
diff --git a/doc/src/development/qmake-manual.qdoc b/doc/src/development/qmake-manual.qdoc
index c3a044f..373254c 100644
--- a/doc/src/development/qmake-manual.qdoc
+++ b/doc/src/development/qmake-manual.qdoc
@@ -1901,8 +1901,17 @@
     \target PWD
     \section1 PWD
 
-    This variable contains the full path leading to the directory where
-    the \l {qmake}{ \c qmake} project file (project.pro) is located.
+    The \c PWD variable specifies the full path leading to the directory
+    containing the current file being parsed. This can be useful
+    to refer to files within the source tree when writing project files to
+    support shadow builds.
+
+    See also \l{#_PRO_FILE_PWD_}{_PRO_FILE_PWD_}.
+
+    \note IN_PWD is an alias for PWD.
+
+    \note Function calls have no effect on the value of PWD. PWD will refer to
+    the path of the calling file.
 
     \target OUT_PWD
     \section1 OUT_PWD
@@ -3399,6 +3408,19 @@
 
     \tableofcontents{2}
 
+    \section1 packagesExist(packages)
+
+    Uses the PKGCONFIG mechanism to determine whether or not the given packages
+    exist at the time of project parsing.
+
+    This can be useful to optionally enable or disable features. For example:
+
+    \snippet doc/src/snippets/code/doc_src_qmake-manual.qdoc 157
+
+    And then, in the code:
+
+    \snippet doc/src/snippets/code/doc_src_qmake-manual.qdoc 158
+
     \section1 basename(variablename)
 
     Returns the basename of the file specified. For example:
diff --git a/doc/src/snippets/code/doc_src_qmake-manual.qdoc b/doc/src/snippets/code/doc_src_qmake-manual.qdoc
index f6ac4f8..a35a3d9 100644
--- a/doc/src/snippets/code/doc_src_qmake-manual.qdoc
+++ b/doc/src/snippets/code/doc_src_qmake-manual.qdoc
@@ -1029,3 +1029,15 @@ DEPLOYMENT += dep_note
 //! [156]
 DEPLOYMENT.display_name = My Qt App
 //! [156]
+
+//! [157]
+packagesExist(sqlite3 QtNetwork QtDeclarative) {
+    DEFINES += USE_FANCY_UI
+}
+//! [157]
+
+//! [158]
+#ifdef USE_FANCY_UI
+    // Use the fancy UI, as we have extra packages available
+#endif
+//! [158]