build: make graphviz optional for building documentation
Change-Id: Icff993cccc675c95cd6f671cd217c74d7768fac9
diff --git a/docs/doxygen.conf.in b/docs/doxygen.conf.in
index 8e31136..d70ac1c 100644
--- a/docs/doxygen.conf.in
+++ b/docs/doxygen.conf.in
@@ -230,12 +230,6 @@
ALIASES =
-# This tag can be used to specify a number of word-keyword mappings (TCL only).
-# A mapping has the form "name=value". For example adding "class=itcl::class"
-# will allow you to use the command class in the itcl::class meaning.
-
-TCL_SUBST =
-
# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
# only. Doxygen will then generate output that is more tailored for C. For
# instance, some of the names that are used will be different. The list of all
@@ -2161,7 +2155,7 @@
# set to NO
# The default value is: YES.
-HAVE_DOT = YES
+HAVE_DOT = @HAVE_DOT@
# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
# to run in parallel. When set to 0 doxygen will base this on the number of
diff --git a/wscript b/wscript
index cad98bc..cd86ca8 100644
--- a/wscript
+++ b/wscript
@@ -81,6 +81,7 @@
conf.env.WITH_EXAMPLES = conf.options.with_examples
conf.find_program('sh', var='SH')
+ conf.find_program('dot', var='DOT', mandatory=False)
conf.check_cxx(lib='atomic', uselib_store='ATOMIC', define_name='HAVE_ATOMIC', mandatory=False)
conf.check_cxx(lib='pthread', uselib_store='PTHREAD', define_name='HAVE_PTHREAD', mandatory=False)
@@ -333,6 +334,7 @@
target=['docs/doxygen.conf',
'docs/named_data_theme/named_data_footer-with-analytics.html'],
VERSION=VERSION,
+ HAVE_DOT='YES' if bld.env.DOT else 'NO',
HTML_FOOTER='../build/docs/named_data_theme/named_data_footer-with-analytics.html' \
if os.getenv('GOOGLE_ANALYTICS', None) \
else '../docs/named_data_theme/named_data_footer.html',