Fix Travis CI build

.gitignore

@@ -15,6 +15,7 @@ MANIFEST
 doc/build
 doc/source/apidoc/generated
 doc/source/examples
+doc/tmp
 
 # Ignore local files
 notes

Makefile

@@ -22,7 +22,7 @@ dist: clean doc
 	python setup.py sdist
 
 # Install the library in development mode
-install: clean
+install:
 	pip install --upgrade pip setuptools
 	pip install --upgrade -r requirements.txt
 	pip install --upgrade -e .

doc/Makefile

@@ -23,17 +23,21 @@ help:
 
 # Autogenerate documentation for examples and all classes and functions
 init:
-	rm -rf $(TMPDIR)
-	rm -rf $(EXSRCDOCDIR)
-	rm -rf $(GENAPIDOCDIR)
-	mkdir -p $(TMPDIR)
-	cp $(SOURCEDIR)/conf.py $(TMPDIR)/conf.py
-	python $(SCRIPTSDIR)/make_apidoc.py $(TMPDIR)/index.rst $(GENAPIDOCDIR)
-	sphinx-build -b linkcheck $(TMPDIR) $(BUILDDIR)
-	rm -rf $(TMPDIR)
-	python $(SCRIPTSDIR)/make_examples.py $(EXCODEDIR) $(EXSRCDOCDIR)
+	@rm -rf $(TMPDIR)
+	@rm -rf $(EXSRCDOCDIR)
+	@rm -rf $(GENAPIDOCDIR)
+	@mkdir -p $(TMPDIR)
+	@cp $(SOURCEDIR)/conf.py $(TMPDIR)/conf.py
+	@python $(SCRIPTSDIR)/make_apidoc.py $(TMPDIR)/index.rst $(GENAPIDOCDIR)
+	@sphinx-build -b linkcheck $(TMPDIR) $(BUILDDIR)
+	@rm -rf $(TMPDIR)
+	@python $(SCRIPTSDIR)/make_examples.py $(EXCODEDIR) $(EXSRCDOCDIR)
 
 # Catch-all target: route all unknown targets to Sphinx using the new
 # "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
 %: Makefile init
 	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+clean:
+	@rm -rf $(TMPDIR)
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) clean