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authorMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-03-30 14:45:58 +0100
committerJonathan Corbet <corbet@lwn.net>2019-04-01 22:33:42 +0200
commit28f7c994255a9811caa17253353036559852c99c (patch)
tree3ad31d5f20274b778ae909300491f9a844304164
parentcheckpatch: Warn on improper usage of Co-developed-by (diff)
downloadlinux-28f7c994255a9811caa17253353036559852c99c.tar.xz
linux-28f7c994255a9811caa17253353036559852c99c.zip
docs: Makefile: use latexmk if available
In the past, Sphinx was generating a LaTex Makefile that would run xelatex 3 times. Running it multiple times is needed in order to make the indexes right. However, newer versions of it runs it just once, as it expects the machine to use the "latexmk" build, with automatically detects the need for rebuilds. So, add a logic at the Makefile in order to detect if latexmk is installed. If so, it will call it. As an additional bonus, the output of latexmk is a little bit better, making easier to identify build problems. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
-rw-r--r--Documentation/Makefile9
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/Makefile b/Documentation/Makefile
index 9786957c6a35..e889e7cb8511 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -28,8 +28,13 @@ ifeq ($(HAVE_SPHINX),0)
else # HAVE_SPHINX
-# User-friendly check for pdflatex
+# User-friendly check for pdflatex and latexmk
HAVE_PDFLATEX := $(shell if which $(PDFLATEX) >/dev/null 2>&1; then echo 1; else echo 0; fi)
+HAVE_LATEXMK := $(shell if which latexmk >/dev/null 2>&1; then echo 1; else echo 0; fi)
+
+ifeq ($(HAVE_LATEXMK),1)
+ PDFLATEX := latexmk -$(PDFLATEX)
+endif #HAVE_LATEXMK
# Internal variables.
PAPEROPT_a4 = -D latex_paper_size=a4
@@ -82,7 +87,7 @@ pdfdocs:
else # HAVE_PDFLATEX
pdfdocs: latexdocs
- $(foreach var,$(SPHINXDIRS), $(MAKE) PDFLATEX=$(PDFLATEX) LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit;)
+ $(foreach var,$(SPHINXDIRS), $(MAKE) PDFLATEX="$(PDFLATEX)" LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit;)
endif # HAVE_PDFLATEX