Index: multimedia/audioutils/pavucontrol.xml
===================================================================
--- multimedia/audioutils/pavucontrol.xml	(revision 30596408c25e723ac0a33cf306431d84992d6604)
+++ multimedia/audioutils/pavucontrol.xml	(revision 6d6005b05141dc65c216ff386a03191137eea8f0)
@@ -98,5 +98,5 @@
 cd    build &amp;&amp;
 
-meson setup --prefix=/usr --buildtype=release -Dlynx=false .. &amp;&amp;
+meson setup --prefix=/usr --buildtype=release -D lynx=false .. &amp;&amp;
 ninja</userinput></screen>
 
@@ -118,5 +118,5 @@
 
     <para>
-      <parameter>-Dlynx=false</parameter>: This switch disables generating the
+      <parameter>-D lynx=false</parameter>: This switch disables generating the
       README file in text format. Remove this switch if you want the README
       file in text format and have <xref linkend="lynx"/> installed.
Index: multimedia/libdriv/gst10-plugins-ugly.xml
===================================================================
--- multimedia/libdriv/gst10-plugins-ugly.xml	(revision 30596408c25e723ac0a33cf306431d84992d6604)
+++ multimedia/libdriv/gst10-plugins-ugly.xml	(revision 6d6005b05141dc65c216ff386a03191137eea8f0)
@@ -121,5 +121,5 @@
       --prefix=/usr       \
       --buildtype=release \
-      -Dgpl=enabled       &amp;&amp;
+      -D gpl=enabled      &amp;&amp;
 ninja</userinput></screen>
 
@@ -142,5 +142,5 @@
 
     <para>
-      <parameter>-Dgpl=enabled</parameter>: Without this switch, plugins with
+      <parameter>-D gpl=enabled</parameter>: Without this switch, plugins with
       dependencies on (A)GPL licensed libraries are not built.
     </para>
Index: multimedia/libdriv/opus.xml
===================================================================
--- multimedia/libdriv/opus.xml	(revision 30596408c25e723ac0a33cf306431d84992d6604)
+++ multimedia/libdriv/opus.xml	(revision 6d6005b05141dc65c216ff386a03191137eea8f0)
@@ -92,5 +92,5 @@
 meson setup --prefix=/usr        \
             --buildtype=release  \
-            -Ddocdir=/usr/share/doc/opus-&opus-version; &amp;&amp;
+            -D docdir=/usr/share/doc/opus-&opus-version; &amp;&amp;
 ninja</userinput></screen>
 
Index: multimedia/libdriv/pulseaudio.xml
===================================================================
--- multimedia/libdriv/pulseaudio.xml	(revision 30596408c25e723ac0a33cf306431d84992d6604)
+++ multimedia/libdriv/pulseaudio.xml	(revision 6d6005b05141dc65c216ff386a03191137eea8f0)
@@ -132,7 +132,7 @@
 meson setup --prefix=/usr       \
             --buildtype=release \
-            -Ddatabase=gdbm     \
-            -Ddoxygen=false     \
-            -Dbluez5=disabled   \
+            -D database=gdbm    \
+            -D doxygen=false    \
+            -D bluez5=disable   \
             ..                  &amp;&amp;
 ninja</userinput></screen>
@@ -170,5 +170,5 @@
 
     <para>
-      <parameter>-Dbluez5=disabled</parameter>: This switch prevents
+      <parameter>-D bluez5=disabled</parameter>: This switch prevents
       a runtime error if <xref linkend="dbus"/> and <xref linkend="sbc"/>
       are both installed but <xref linkend="bluez"/> is not installed.
@@ -177,5 +177,5 @@
 
     <para>
-      <parameter>-Ddoxygen=false</parameter>: This allows the package to
+      <parameter>-D doxygen=false</parameter>: This allows the package to
       compile if <xref linkend="doxygen"/> is not installed. Remove this
       if you have installed this and wish to build the documentation.
Index: multimedia/libdriv/wireplumber.xml
===================================================================
--- multimedia/libdriv/wireplumber.xml	(revision 30596408c25e723ac0a33cf306431d84992d6604)
+++ multimedia/libdriv/wireplumber.xml	(revision 6d6005b05141dc65c216ff386a03191137eea8f0)
@@ -105,5 +105,5 @@
 cd    build &amp;&amp;
 
-meson setup --prefix=/usr --buildtype=release -Dsystem-lua=true .. &amp;&amp;
+meson setup --prefix=/usr --buildtype=release -D system-lua=true .. &amp;&amp;
 ninja</userinput></screen>
 
@@ -127,5 +127,5 @@
 
     <para>
-      <parameter>-Dsystem-lua=true</parameter>: This switch enables using the
+      <parameter>-D system-lua=true</parameter>: This switch enables using the
       system version of Lua. Omit this switch if you have not installed Lua,
       but note that <application>meson</application> will download and install
