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From f2fc8c48e5e55a91b309225f377b6cb3783fc6f6 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 25 May 2016 15:21:57 +0200
Subject: [PATCH] lib: use proper linking method to avoid parallel build issue
Using <foo>_LDFLAGS = -l<library> is correct when <library> is an
external library. However, when it is built by the same package, and
especially in the same directory, this is wrong and can cause parallel
build issues. In lib/Makefile.am, there was:
libirrecord_la_LDFLAGS = -llirc
But the liblirc library is built in the same directory. Or, due to the
using of <foo>_LDFLAGS, make is not aware of the build dependency
between libirrecord and liblirc.
To solve this, <foo>_LIBADD should be used instead, as follows:
libirrecord_la_LIBADD = liblirc.la
This fixes parallel build issues seen by automated build tests
conducted by the Buildroot project, such as:
http://autobuild.buildroot.org/results/eb4/eb47d57de8182d25b1dacbf0ac3726ed20063d04/build-end.log
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
lib/Makefile.am | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/Makefile.am b/lib/Makefile.am
index ce5c94c..8780f88 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -29,7 +29,7 @@ liblirc_la_SOURCES = config_file.c \
transmit.c \
util.c
-libirrecord_la_LDFLAGS = -llirc
+libirrecord_la_LIBADD = liblirc.la
libirrecord_la_SOURCES = irrecord.c
liblirc_client_la_LDFLAGS = -version-info 4:0:4
--
2.7.4
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