Squashed 'lib/mbedtls/external/mbedtls/' content from commit 2ca6c285a0dd

git-subtree-dir: lib/mbedtls/external/mbedtls
git-subtree-split: 2ca6c285a0dd3f33982dd57299012dacab1ff206
diff --git a/docs/Makefile b/docs/Makefile
new file mode 100644
index 0000000..47510f9
--- /dev/null
+++ b/docs/Makefile
@@ -0,0 +1,40 @@
+# Minimal makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = .
+BUILDDIR      = _build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.PHONY: help clean apidoc breathe_apidoc Makefile
+
+# Intercept the 'clean' target so we can do the right thing for apidoc as well
+clean:
+	@# Clean the apidoc
+	$(MAKE) -C .. apidoc_clean
+	@# Clean the breathe-apidoc generated files
+	rm -rf ./api
+	@# Clean the sphinx docs
+	@$(SPHINXBUILD) -M clean "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+apidoc:
+	@# Generate doxygen from source using the main Makefile
+	$(MAKE) -C .. apidoc
+
+breathe_apidoc: apidoc
+	@# Remove existing files - breathe-apidoc skips them if they're present
+	rm -rf ./api
+	@# Generate RST file structure with breathe-apidoc
+	breathe-apidoc -o ./api ../apidoc/xml
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile breathe_apidoc
+	@# Build the relevant target with sphinx
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)