[libsigcplusplus] Reference docs: main page: Make autotools part consistent with CMake part.

[Murray Cumming <murrayc src gnome org>]

commit f723f80c94d52159c0b6e01a3ddb414a7f0a513f
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Mar 15 12:34:35 2016 +0100

    Reference docs: main page: Make autotools part consistent with CMake part.

 sigc++/sigc++.h |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/sigc++/sigc++.h b/sigc++/sigc++.h
index 3389a2e..064c6b3 100644
--- a/sigc++/sigc++.h
+++ b/sigc++/sigc++.h
@@ -69,13 +69,13 @@
  *
  * Alternatively, if using autoconf, use the following in @c configure.ac:
  * @code
- * PKG_CHECK_MODULES([LIBSIGC], [sigc++-3.0])
+ * PKG_CHECK_MODULES([DEPS], [sigc++-3.0])
  * @endcode
- * Then use the generated @c LIBSIGC_CFLAGS and @c LIBSIGC_LIBS variables
+ * Then use the generated @c DEPS_CFLAGS and @c DEPS_LIBS variables
  * in the project @c Makefile.am files. For example:
  * @code
- * program_CPPFLAGS = $(LIBSIGC_CFLAGS)
- * program_LDADD = $(LIBSIGC_LIBS)
+ * yourprogram_CPPFLAGS = $(DEPS_CFLAGS)
+ * yourprogram_LDADD = $(DEPS_LIBS)
  * @endcode
  *
  * @subsection cmake Using CMake