The mcaptest tool uses the profiles/health/mcap.c source file, which 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 [...]/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@xxxxxxxxxxxxxxxxxx> --- Makefile.tools | 2 +- configure.ac | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/Makefile.tools b/Makefile.tools index bc827fe..fef3db5 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@ @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 -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
