package/flex/0003-build-make-it-possible-to-disable-the-build-of-the-d.patch

From b89b8475a5b2f9444c32f7d254b35968da3c8a23 Mon Sep 17 00:00:00 2001
From: "Yann E. MORIN" <yann.morin.1998@free.fr>
Date: Fri, 29 Sep 2017 18:03:51 +0200
Subject: [PATCH] build: make it possible to disable the build of the
 documentation

When targetting embedded evices, the documentation is not needed.

Building the documentation default to whether the program is built.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 Makefile.am  | 8 +++++++-
 configure.ac | 6 ++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/Makefile.am b/Makefile.am
index fce30b2..ee75b64 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -41,9 +41,15 @@ EXTRA_DIST = \
 	.indent.pro \
 	autogen.sh
 
+MAYBE_SUBDIRS =
+
+if ENABLE_DOC
+MAYBE_SUBDIRS += doc
+endif
+
 SUBDIRS = \
 	src \
-	doc \
+	$(MAYBE_SUBDIRS) \
 	examples \
 	po \
 	tests \
diff --git a/configure.ac b/configure.ac
index c54e98f..b3ae450 100644
--- a/configure.ac
+++ b/configure.ac
@@ -80,6 +80,12 @@ AC_ARG_ENABLE([program],
   [], [enable_program=yes])
 AM_CONDITIONAL([ENABLE_PROGRAM], [test "x$enable_program" = xyes])
 
+AC_ARG_ENABLE([doc],
+  [AS_HELP_STRING([--disable-doc],
+                  [do not build the documentation])],
+  [], [enable_doc=${enable_program}])
+AM_CONDITIONAL([ENABLE_DOC], [test "x$enable_doc" = xyes -a "x$enable_program" = xyes])
+
 # --disable-bootstrap is intended only to workaround problems with bootstrap
 # (e.g. when cross-compiling flex or when bootstrapping has bugs).
 # Ideally we should be able to bootstrap even when cross-compiling.
-- 
2.11.0