Added Library_Type to help with building libraries as shared or static.

1 files changed, 40 insertions, 2 deletions

diff --git a/manual.en.html b/manual.en.html
index 3d25fc2..9910afb 100755
--- a/manual.en.html
+++ b/manual.en.html
@@ -112,7 +112,7 @@ and is also
 
 <p>The following applies to all of Comfignat including this document:</p>
 
-<p>Copyright 2013 - 2015 Björn Persson, Bjorn@Rombobjörn.se</p>
+<p>Copyright 2013 - 2016 Björn Persson, Bjorn@Rombobjörn.se</p>
 
 <p>This material is provided as is, with absolutely no warranty expressed
 or implied. Any use is at your own risk.</p>
@@ -456,6 +456,43 @@ project will therefore automatically adapt to the current target architecture,
 so that 32-bit and 64-bit instances of the library can be installed in parallel
 and the right library will be used in every build.</p>
 
+<h3 id="library_type">Shared and Static Libraries</h3>
+
+<p>Many libraries can be built either as a shared library or as a static
+library. To enable this, use the variable <var>Comfignat.Library_Type</var> for
+<var>Library_Kind</var> in the build-controlling project file, and the
+preprocessor symbol <var>Library_Type</var> in the usage project file. The
+default will then be to build a shared library, but installing users and
+distributions can build a static library instead by setting
+<var>library_type</var> to “<samp>static</samp>” on the Make command line.
+The possible values of <var>Library_Type</var> are the same as for
+<var>Library_Kind</var>: “<samp>dynamic</samp>”, “<samp>static</samp>”, and
+“<samp>relocatable</samp>” which is an alias for “<samp>dynamic</samp>”.</p>
+
+<p>It may be necessary to also use <var>Comfignat.Library_Type</var> in a case
+construction to set certain attributes only for one kind of library. It may for
+example be desirable to set <var>Library_Interface</var> for a shared library
+but not for a static library, to get the best automatic elaboration in both
+cases. Here's a project file fragment that sets <var>Library_Version</var> and
+<var>Library_Interface</var> only when building a shared library:</p>
+
+<pre class="example gpr">   for Library_Kind      use Comfignat.Library_Type;
+   case Comfignat.Library_Type is
+      when "dynamic" | "relocatable" =>
+         for Library_Version   use "libexample.so.1";
+         for Library_Interface use ("Example");
+      when "static" =>
+         null;
+   end case;</pre>
+
+<p>It is also possible to build both a shared and a static library in the same
+Make invocation by overriding <var>LIBRARY_TYPE</var> on the builder command
+line:</p>
+
+<pre class="example make">base: build_example.gpr
+	${build_GPR} -margs -XLIBRARY_TYPE=dynamic
+	${build_GPR} -margs -XLIBRARY_TYPE=static</pre>
+
 <h3 id="options">Options</h3>
 
 <p>Your software may have optional features or properties that can be enabled
@@ -510,7 +547,8 @@ have its own <var>runstatedir</var>.</p>
 <p>There are several options variables that let installing users and
 distributions control which arguments the build tools are invoked with. They
 have names that end with “<var>FLAGS</var>”, and are documented in
-<var>INSTALL</var>. The value of <var>GNATFLAGS</var> is a combination of the
+<a href="INSTALL"><var>INSTALL</var></a>.
+The value of <var>GNATFLAGS</var> is a combination of the
 other options variables and must not be modified in a way that disregards the
 other variables. Apart from that restriction you can assign default values to
 optional arguments in these variables, but be sure to do the assignments with