2015-01-01 22:35:20 +01:00
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From 54b8977c2f854d04f9c6383e2cac76ea4cde3eaa Mon Sep 17 00:00:00 2001
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2014-12-29 13:31:39 +01:00
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Date: Mon, 29 Dec 2014 12:23:41 +0100
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2015-01-01 22:35:20 +01:00
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Subject: [PATCH] Link mcaptest with -lrt when needed
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2014-12-29 13:31:39 +01:00
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The mcaptest tool uses the profiles/health/mcap.c source file, which
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2015-01-01 22:35:20 +01:00
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calls clock_getres(). This function is defined in librt in some C
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libraries, so mcaptest should be linked against librt when needed,
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otherwise one gets link failures such as:
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2014-12-29 13:31:39 +01:00
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ld: profiles/health/mcap.o: undefined reference to symbol 'clock_getres@@GLIBC_2.2.5'
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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
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[...]/sysroot/lib64/librt.so.1: could not read symbols: Invalid operation
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collect2: error: ld returned 1 exit status
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Makefile:4184: recipe for target 'tools/mcaptest' failed
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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---
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Makefile.tools | 2 +-
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configure.ac | 5 +++++
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2 files changed, 6 insertions(+), 1 deletion(-)
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2014-12-29 13:31:39 +01:00
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diff --git a/Makefile.tools b/Makefile.tools
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index bc827fe..fef3db5 100644
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--- a/Makefile.tools
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+++ b/Makefile.tools
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@@ -195,7 +195,7 @@ tools_mcaptest_SOURCES = tools/mcaptest.c \
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btio/btio.h btio/btio.c \
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src/log.c src/log.h \
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profiles/health/mcap.h profiles/health/mcap.c
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-tools_mcaptest_LDADD = lib/libbluetooth-internal.la @GLIB_LIBS@
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+tools_mcaptest_LDADD = lib/libbluetooth-internal.la @GLIB_LIBS@ @RT_LIBS@
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dist_man_MANS += tools/hciattach.1 tools/hciconfig.1 \
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tools/hcitool.1 tools/hcidump.1 \
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diff --git a/configure.ac b/configure.ac
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index 4739c10..b0afba6 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -54,6 +54,11 @@ AC_CHECK_LIB(pthread, pthread_create, dummy=yes,
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AC_CHECK_LIB(dl, dlopen, dummy=yes,
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AC_MSG_ERROR(dynamic linking loader is required))
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+AC_SEARCH_LIBS([clock_getres], [rt],
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+ [test "$ac_cv_search_clock_getres" = "none required" ||
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+ RT_LIBS=$ac_cv_search_clock_getres])
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+AC_SUBST([RT_LIBS])
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+
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PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.28, dummy=yes,
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AC_MSG_ERROR(GLib >= 2.28 is required))
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AC_SUBST(GLIB_CFLAGS)
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2014-12-29 13:31:39 +01:00
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--
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2.1.0
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