Makefile: Fix Sphinx documentation builds for in-tree builds

The Sphinx build-sphinx tool does not permit building a manual
into the same directory as its source files. This meant that
commit 5f71eac06e broke QEMU in-source-tree
builds, which would fail with:
  Error: source directory and destination directory are same.

Fix this by making in-tree builds build the Sphinx manuals
into a subdirectory of docs/.

Fixes: 5f71eac06e ("Makefile, configure: Support building rST documentation")
Reported-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190308135744.6480-2-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2019-03-08 13:57:42 +00:00
parent e2a18635a4
commit 1290e6711f

View File

@ -655,12 +655,20 @@ dist: qemu-$(VERSION).tar.bz2
qemu-%.tar.bz2:
$(SRC_PATH)/scripts/make-release "$(SRC_PATH)" "$(patsubst qemu-%.tar.bz2,%,$@)"
# Note that these commands assume that there are no HTML files in
# the docs subdir in the source tree! If there are then this will
# blow them away for an in-source-tree 'make clean'.
# Sphinx does not allow building manuals into the same directory as
# the source files, so if we're doing an in-tree QEMU build we must
# build the manuals into a subdirectory (and then install them from
# there for 'make install'). For an out-of-tree build we can just
# use the docs/ subdirectory in the build tree as normal.
ifeq ($(realpath $(SRC_PATH)),$(realpath .))
MANUAL_BUILDDIR := docs/built
else
MANUAL_BUILDDIR := docs
endif
define clean-manual =
rm -rf docs/$1/_static
rm -f docs/$1/objects.inv docs/$1/searchindex.js docs/$1/*.html
rm -rf $(MANUAL_BUILDDIR)/$1/_static
rm -f $(MANUAL_BUILDDIR)/$1/objects.inv $(MANUAL_BUILDDIR)/$1/searchindex.js $(MANUAL_BUILDDIR)/$1/*.html
endef
distclean: clean
@ -720,8 +728,8 @@ BLOBS=
endif
define install-manual =
for d in $$(cd docs && find $1 -type d); do $(INSTALL_DIR) "$(DESTDIR)$(qemu_docdir)/$$d"; done
for f in $$(cd docs && find $1 -type f); do $(INSTALL_DATA) "docs/$$f" "$(DESTDIR)$(qemu_docdir)/$$f"; done
for d in $$(cd $(MANUAL_BUILDDIR) && find $1 -type d); do $(INSTALL_DIR) "$(DESTDIR)$(qemu_docdir)/$$d"; done
for f in $$(cd $(MANUAL_BUILDDIR) && find $1 -type f); do $(INSTALL_DATA) "$(MANUAL_BUILDDIR)/$$f" "$(DESTDIR)$(qemu_docdir)/$$f"; done
endef
# Note that we deliberately do not install the "devel" manual: it is
@ -885,17 +893,17 @@ docs/version.texi: $(SRC_PATH)/VERSION
# and handles "don't rebuild things unless necessary" itself.
# The '.doctrees' files are cached information to speed this up.
.PHONY: sphinxdocs
sphinxdocs: docs/devel/index.html docs/interop/index.html
sphinxdocs: $(MANUAL_BUILDDIR)/devel/index.html $(MANUAL_BUILDDIR)/interop/index.html
# Canned command to build a single manual
build-manual = $(call quiet-command,sphinx-build $(if $(V),,-q) -b html -D version=$(VERSION) -D release="$(FULL_VERSION)" -d .doctrees/$1 $(SRC_PATH)/docs/$1 docs/$1 ,"SPHINX","docs/$1")
build-manual = $(call quiet-command,sphinx-build $(if $(V),,-q) -b html -D version=$(VERSION) -D release="$(FULL_VERSION)" -d .doctrees/$1 $(SRC_PATH)/docs/$1 $(MANUAL_BUILDDIR)/$1 ,"SPHINX","$(MANUAL_BUILDDIR)/$1")
# We assume all RST files in the manual's directory are used in it
manual-deps = $(wildcard $(SRC_PATH)/docs/$1/*.rst) $(SRC_PATH)/docs/$1/conf.py $(SRC_PATH)/docs/conf.py
docs/devel/index.html: $(call manual-deps,devel)
$(MANUAL_BUILDDIR)/devel/index.html: $(call manual-deps,devel)
$(call build-manual,devel)
docs/interop/index.html: $(call manual-deps,interop)
$(MANUAL_BUILDDIR)/interop/index.html: $(call manual-deps,interop)
$(call build-manual,interop)
qemu-options.texi: $(SRC_PATH)/qemu-options.hx $(SRC_PATH)/scripts/hxtool