From d56fcf299fb4c4a39634d822bbb9538acd7548f2 Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Mon, 26 Jan 2015 11:31:17 +0100
Subject: DocBook: Do not exceed argument list limit

Use find + xargs to compress the generated manpages. Without this patch,
the build can fail with

    gzip -f Documentation/DocBook/man/*.9
    /bin/bash: /usr/bin/gzip: Argument list too long

This happened with qemu user mode emulation on aarch64.

Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile
index 9c7d92d..b6a6a2e 100644
--- a/Documentation/DocBook/Makefile
+++ b/Documentation/DocBook/Makefile
@@ -56,7 +56,7 @@ htmldocs: $(HTML)
 
 MAN := $(patsubst %.xml, %.9, $(BOOKS))
 mandocs: $(MAN)
-	$(if $(wildcard $(obj)/man/*.9),gzip -f $(obj)/man/*.9)
+	find $(obj)/man -name '*.9' | xargs gzip -f
 
 installmandocs: mandocs
 	mkdir -p /usr/local/man/man9/
-- 
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