Customize distribution and installation

doxygen creates documentation at make dist, copies it to tarball and
extracts it at make install. Thus user doens't need to have (specific
version) of doxygen.

Makefile.am

@@ -26,3 +26,28 @@ libfoo_la_SOURCES = src/foo.c
 include_HEADERS = src/foo.h
 
 EXTRA_DIST += doc/documentation.md
+
+dist-hook: doxygen-2-dist
+if HAVE_DOXYGEN
+doxygen-2-dist:
+	$(DOXYGEN) doc/doxyfile
+	tar czf doxygen.tar.gz doxygen/
+	cp doxygen.tar.gz $(distdir)/doc
+	rm -rf doxygen doxygen.tar.gz
+else !HAVE_DOXYGEN
+doxygen-2-dist:
+endif !HAVE_DOXYGEN
+
+install-data-hook: doxygen-install
+doxygen-install:
+	if test -e $(srcdir)/doc/doxygen.tar.gz; then \
+            $(MKDIR_P) $(DESTDIR)$(docdir); \
+            $(INSTALL_DATA) $(srcdir)/doc/doxygen.tar.gz $(DESTDIR)$(docdir)/; \
+            cd $(DESTDIR)$(docdir); \
+            tar xzf doxygen.tar.gz; \
+            rm -f doxygen.tar.gz; \
+        fi
+
+uninstall-hook: doxygen-uninstall
+doxygen-uninstall:
+	rm -rf $(DESTDIR)$(docdir)/doxygen

configure.ac

@@ -15,6 +15,10 @@ LT_INIT
 
 LIBPAPI
 
+AC_CHECK_PROG([DOXYGEN], [doxygen], [`which doxygen`])
+AM_CONDITIONAL([HAVE_DOXYGEN], [test -n "$DOXYGEN"])
+AM_COND_IF([HAVE_DOXYGEN], [AC_CONFIG_FILES([doc/doxyfile])])
+
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT

doc/doxyfile.in

+# @configure_input@
+
+# Doxyfile 1.8.10
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+# ...
+
+PROJECT_NAME           = "@PACKAGE@"
+PROJECT_NUMBER         = @PACKAGE_VERSION@
+INPUT                  = @abs_top_srcdir@
+OUTPUT_DIRECTORY       = doxygen
+QUIET                  = YES
+
+# ...