2 # Makefile for Sphinx documentation
5 # You can set these variables from the command line.
6 SPHINXBUILD = sphinx-build
9 _SPHINXDIRS = $(patsubst $(srctree)/Documentation/%/conf.py,%,$(wildcard $(srctree)/Documentation/*/conf.py))
12 BUILDDIR = $(obj)/output
14 LATEXOPTS = -interaction=batchmode
16 # User-friendly check for sphinx-build
17 HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi)
19 ifeq ($(HAVE_SPHINX),0)
22 $(warning The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed and in PATH, or set the SPHINXBUILD make variable to point to the full path of the '$(SPHINXBUILD)' executable.)
23 @echo " SKIP Sphinx $@ target."
25 else ifneq ($(DOCBOOKS),)
27 # Skip Sphinx build if the user explicitly requested DOCBOOKS.
29 @echo " SKIP Sphinx $@ target (DOCBOOKS specified)."
33 # User-friendly check for pdflatex
34 HAVE_PDFLATEX := $(shell if which $(PDFLATEX) >/dev/null 2>&1; then echo 1; else echo 0; fi)
37 PAPEROPT_a4 = -D latex_paper_size=a4
38 PAPEROPT_letter = -D latex_paper_size=letter
39 KERNELDOC = $(srctree)/scripts/kernel-doc
40 KERNELDOC_CONF = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC)
41 ALLSPHINXOPTS = $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS)
42 # the i18n builder cannot share the environment and doctrees with the others
43 I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
45 # commands; the 'cmd' from scripts/Kbuild.include is not *loopable*
46 loop_cmd = $(echo-cmd) $(cmd_$(1)) || exit;
48 # $2 sphinx builder e.g. "html"
49 # $3 name of the build subfolder / e.g. "media", used as:
50 # * dest folder relative to $(BUILDDIR) and
51 # * cache folder relative to $(BUILDDIR)/.doctrees
52 # $4 dest subfolder e.g. "man" for man pages at media/man
53 # $5 reST source folder relative to $(srctree)/$(src),
54 # e.g. "media" for the linux-tv book-set at ./Documentation/media
56 quiet_cmd_sphinx = SPHINX $@ --> file://$(abspath $(BUILDDIR)/$3/$4)
57 cmd_sphinx = $(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media $2 && \
58 PYTHONDONTWRITEBYTECODE=1 \
59 BUILDDIR=$(abspath $(BUILDDIR)) SPHINX_CONF=$(abspath $(srctree)/$(src)/$5/$(SPHINX_CONF)) \
62 -c $(abspath $(srctree)/$(src)) \
63 -d $(abspath $(BUILDDIR)/.doctrees/$3) \
64 -D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) \
66 $(abspath $(srctree)/$(src)/$5) \
67 $(abspath $(BUILDDIR)/$3/$4)
70 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var)))
73 @$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,linkcheck,$(var),,$(var)))
76 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,latex,$(var),latex,$(var)))
78 ifeq ($(HAVE_PDFLATEX),0)
81 $(warning The '$(PDFLATEX)' command was not found. Make sure you have it installed and in PATH to produce PDF output.)
82 @echo " SKIP Sphinx $@ target."
87 $(foreach var,$(SPHINXDIRS), $(MAKE) PDFLATEX=$(PDFLATEX) LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit;)
92 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,epub,$(var),epub,$(var)))
95 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,xml,$(var),xml,$(var)))
99 # The following targets are independent of HAVE_SPHINX, and the rules should
100 # work or silently pass without Sphinx.
102 # no-ops for the Sphinx toolchain
113 $(Q)rm -rf $(BUILDDIR)
114 $(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media clean
117 @echo ' Linux kernel internal documentation in different formats (Sphinx):'
118 @echo ' htmldocs - HTML'
119 @echo ' latexdocs - LaTeX'
120 @echo ' pdfdocs - PDF'
121 @echo ' epubdocs - EPUB'
122 @echo ' xmldocs - XML'
123 @echo ' linkcheckdocs - check for broken external links (will connect to external hosts)'
124 @echo ' cleandocs - clean all generated files'
126 @echo ' make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2'
127 @echo ' valid values for SPHINXDIRS are: $(_SPHINXDIRS)'
129 @echo ' make SPHINX_CONF={conf-file} [target] use *additional* sphinx-build'
130 @echo ' configuration. This is e.g. useful to build with nit-picking config.'