linux/Documentation/Makefile.sphinx
Linus Torvalds 52ddb7e9dd Three fixes for the docs build, including removing an annoying warning on
"make help" if sphinx isn't present.
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Merge tag 'doc-4.8-fixes' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "Three fixes for the docs build, including removing an annoying warning
  on 'make help' if sphinx isn't present"

* tag 'doc-4.8-fixes' of git://git.lwn.net/linux:
  DocBook: use DOCBOOKS="" to ignore DocBooks instead of IGNORE_DOCBOOKS=1
  Documenation: update cgroup's document path
  Documentation/sphinx: do not warn about missing tools in 'make help'
2016-08-07 10:23:17 -04:00

78 lines
2.4 KiB
Makefile

# -*- makefile -*-
# Makefile for Sphinx documentation
#
# You can set these variables from the command line.
SPHINXBUILD = sphinx-build
SPHINXOPTS =
PAPER =
BUILDDIR = $(obj)/output
# User-friendly check for sphinx-build
HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi)
ifeq ($(HAVE_SPHINX),0)
.DEFAULT:
$(warning The '$(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.)
@echo " SKIP Sphinx $@ target."
else ifneq ($(DOCBOOKS),)
# Skip Sphinx build if the user explicitly requested DOCBOOKS.
.DEFAULT:
@echo " SKIP Sphinx $@ target (DOCBOOKS specified)."
else # HAVE_SPHINX
# User-friendly check for rst2pdf
HAVE_RST2PDF := $(shell if python -c "import rst2pdf" >/dev/null 2>&1; then echo 1; else echo 0; fi)
# Internal variables.
PAPEROPT_a4 = -D latex_paper_size=a4
PAPEROPT_letter = -D latex_paper_size=letter
KERNELDOC = $(srctree)/scripts/kernel-doc
KERNELDOC_CONF = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC)
ALLSPHINXOPTS = -D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) -d $(BUILDDIR)/.doctrees $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) -c $(srctree)/$(src) $(SPHINXOPTS) $(srctree)/$(src)
# the i18n builder cannot share the environment and doctrees with the others
I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
quiet_cmd_sphinx = SPHINX $@
cmd_sphinx = BUILDDIR=$(BUILDDIR) $(SPHINXBUILD) -b $2 $(ALLSPHINXOPTS) $(BUILDDIR)/$2
htmldocs:
$(MAKE) BUILDDIR=$(BUILDDIR) -f $(srctree)/Documentation/media/Makefile $@
$(call cmd,sphinx,html)
pdfdocs:
ifeq ($(HAVE_RST2PDF),0)
$(warning The Python 'rst2pdf' module was not found. Make sure you have the module installed to produce PDF output.)
@echo " SKIP Sphinx $@ target."
else # HAVE_RST2PDF
$(call cmd,sphinx,pdf)
endif # HAVE_RST2PDF
epubdocs:
$(call cmd,sphinx,epub)
xmldocs:
$(call cmd,sphinx,xml)
# no-ops for the Sphinx toolchain
sgmldocs:
psdocs:
mandocs:
installmandocs:
cleandocs:
$(Q)rm -rf $(BUILDDIR)
endif # HAVE_SPHINX
dochelp:
@echo ' Linux kernel internal documentation in different formats (Sphinx):'
@echo ' htmldocs - HTML'
@echo ' pdfdocs - PDF'
@echo ' epubdocs - EPUB'
@echo ' xmldocs - XML'
@echo ' cleandocs - clean all generated files'