[gspell] docs: document pkg-config name in the intro

[Sébastien Wilmet <swilmet src gnome org>]

commit bcab9c41d8bd597d3fe006f9055f5da07d60aab5
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Mon Aug 8 15:22:10 2016 +0200

    docs: document pkg-config name in the intro
    
    And do not hardcode the gspell API version.

 configure.ac                               |    1 +
 docs/reference/Makefile.am                 |    9 +++++++--
 docs/reference/{intro.xml => intro.xml.in} |   14 ++++++++++++++
 3 files changed, 22 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2114209..395b37f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -210,6 +210,7 @@ AC_CONFIG_FILES([
        Makefile
        docs/Makefile
        docs/reference/gspell-docs.xml
+       docs/reference/intro.xml
        docs/reference/Makefile
        gspell/Makefile
        gspell/resources/Makefile
diff --git a/docs/reference/Makefile.am b/docs/reference/Makefile.am
index e62e6a2..33b30b1 100644
--- a/docs/reference/Makefile.am
+++ b/docs/reference/Makefile.am
@@ -64,7 +64,12 @@ MAINTAINERCLEANFILES =                       \
 # include common portion ...
 include $(top_srcdir)/gtk-doc.make
 
-EXTRA_DIST += gspell-docs.xml.in
-DISTCLEANFILES = gspell-docs.xml
+EXTRA_DIST +=                  \
+       gspell-docs.xml.in      \
+       intro.xml.in
+
+DISTCLEANFILES =               \
+       gspell-docs.xml         \
+       intro.xml
 
 -include $(top_srcdir)/git.mk
diff --git a/docs/reference/intro.xml b/docs/reference/intro.xml.in
similarity index 69%
rename from docs/reference/intro.xml
rename to docs/reference/intro.xml.in
index 15ae36a..196c369 100644
--- a/docs/reference/intro.xml
+++ b/docs/reference/intro.xml.in
@@ -16,6 +16,20 @@
   </para>
 
   <refsect1>
+    <title>pkg-config name</title>
+    <para>
+      The pkg-config name of the gspell library is: <code>gspell-@GSPELL_API_VERSION@</code>
+    </para>
+    <para>
+      To compile a program that uses gspell, you can for example use the
+      following command:
+    </para>
+    <para>
+      <code>$ gcc hello.c `pkg-config --cflags --libs gspell-@GSPELL_API_VERSION@` -o hello</code>
+    </para>
+  </refsect1>
+
+  <refsect1>
     <title>How to enable inline spell checking in a GtkTextView</title>
     <para>
       See the <link 
linkend="gspell-text-view-basic-setup"><function>gspell_text_view_basic_setup()</function></link>