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bluez5_utils: improved version of the mcaptest patch

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As suggested by bluez5_utils upstream developers, use an improved
version of the mcaptest patch that only conditionally links on librt
instead of unconditionally linking against it (glibc after 2.17 have
clock_getres() in libc and not in librt).

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Thomas Petazzoni 2015-01-01 22:35:20 +01:00
parent a963685245
commit 9cfe8ffe2f
1 changed files with 25 additions and 8 deletions
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33
package/bluez5_utils/0001-Link-mcaptest-with-lrt.patch → package/bluez5_utils/0001-Link-mcaptest-with-lrt-when-needed.patch
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@ -1,12 +1,12 @@
From 2d965dce71df18221e625efbfe380b54e6441d64 Mon Sep 17 00:00:00 2001
From 54b8977c2f854d04f9c6383e2cac76ea4cde3eaa Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Mon, 29 Dec 2014 12:23:41 +0100
Subject: [PATCH] Link mcaptest with -lrt
Subject: [PATCH] Link mcaptest with -lrt when needed
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:
calls clock_getres(). This function is defined in librt in some C
libraries, so mcaptest should be linked against librt when needed,
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
@ -17,10 +17,11 @@ 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(-)
configure.ac | 5 +++++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/Makefile.tools b/Makefile.tools
index bc827fe..178b773 100644
index bc827fe..fef3db5 100644
--- a/Makefile.tools
+++ b/Makefile.tools
@@ -195,7 +195,7 @@ tools_mcaptest_SOURCES = tools/mcaptest.c \
@ -28,10 +29,26 @@ index bc827fe..178b773 100644
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
+tools_mcaptest_LDADD = lib/libbluetooth-internal.la @GLIB_LIBS@ @RT_LIBS@
dist_man_MANS += tools/hciattach.1 tools/hciconfig.1 \
tools/hcitool.1 tools/hcidump.1 \
diff --git a/configure.ac b/configure.ac
index 4739c10..b0afba6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -54,6 +54,11 @@ AC_CHECK_LIB(pthread, pthread_create, dummy=yes,
AC_CHECK_LIB(dl, dlopen, dummy=yes,
AC_MSG_ERROR(dynamic linking loader is required))
+AC_SEARCH_LIBS([clock_getres], [rt],
+ [test "$ac_cv_search_clock_getres" = "none required" ||
+ RT_LIBS=$ac_cv_search_clock_getres])
+AC_SUBST([RT_LIBS])
+
PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.28, dummy=yes,
AC_MSG_ERROR(GLib >= 2.28 is required))
AC_SUBST(GLIB_CFLAGS)
--
2.1.0