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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: linux-bluetooth@vger.kernel.org
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Subject: [PATCH bluez-utils] Link mcaptest with -lrt
Date: Mon, 29 Dec 2014 13:38:39 +0100	[thread overview]
Message-ID: <1419856719-30526-1-git-send-email-thomas.petazzoni@free-electrons.com> (raw)

The mcaptest tool uses the profiles/health/mcap.c source file, which
calls clock_getres(). This function is defined in librt, so mcaptest
should be linked against librt, otherwise one gets link failures such
as:

ld: profiles/health/mcap.o: undefined reference to symbol 'clock_getres@@GLIBC_2.2.5'
ld: note: 'clock_getres@@GLIBC_2.2.5' is defined in DSO [...]/sysroot/lib64/librt.so.1 so try adding it to the linker command line
[...]/sysroot/lib64/librt.so.1: could not read symbols: Invalid operation
collect2: error: ld returned 1 exit status
Makefile:4184: recipe for target 'tools/mcaptest' failed

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 Makefile.tools | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile.tools b/Makefile.tools
index bc827fe..178b773 100644
--- a/Makefile.tools
+++ b/Makefile.tools
@@ -195,7 +195,7 @@ tools_mcaptest_SOURCES = tools/mcaptest.c \
 				btio/btio.h btio/btio.c \
 				src/log.c src/log.h \
 				profiles/health/mcap.h profiles/health/mcap.c
-tools_mcaptest_LDADD = lib/libbluetooth-internal.la @GLIB_LIBS@
+tools_mcaptest_LDADD = lib/libbluetooth-internal.la @GLIB_LIBS@ -lrt
 
 dist_man_MANS += tools/hciattach.1 tools/hciconfig.1 \
 			tools/hcitool.1 tools/hcidump.1 \
-- 
2.1.0


             reply	other threads:[~2014-12-29 12:38 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-29 12:38 Thomas Petazzoni [this message]
2014-12-29 17:40 ` [PATCH bluez-utils] Link mcaptest with -lrt Marcel Holtmann
2014-12-29 22:22   ` Thomas Petazzoni
2014-12-29 22:22     ` [PATCHv2] Link mcaptest with -lrt when needed Thomas Petazzoni
2015-02-11 15:33       ` Szymon Janc

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