10f5da59ed
Some toolchains (musl) have pthread_setname_np but not pthread_getname_np. The first patch fixes check on pthread_setname_np and the second one add a check for pthread_getname_np Fixes: http://autobuild.buildroot.net/results/65534775c5977e2424c5f5c63c46f9d0f39d7e1b Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
51 lines
1.8 KiB
Diff
51 lines
1.8 KiB
Diff
From 505be2201377fa347a34b6cb4164c856b55e7484 Mon Sep 17 00:00:00 2001
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From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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Date: Thu, 23 Nov 2017 22:47:39 +0100
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Subject: [PATCH] Fix pthread_setname_np detection
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Commit 6617c6f2c8aad041d3428bea11206fd2e61763b1 replaced
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AC_LINK_IFELSE with AC_COMPILE_IFELSE. This has broken the
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pthread_setname_np detection as compilation will always succeed even if
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pthread_setname_np is not available (if the function is not found, a
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simple warning will be displayed in config.log).
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The correct fix is to put back AC_LINK_IFELSE with -pthread in LIBS
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otherwise compilation will fail on toolchain without pthread_setname_np.
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Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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---
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configure.ac | 9 ++++++---
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1 file changed, 6 insertions(+), 3 deletions(-)
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diff --git a/configure.ac b/configure.ac
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index 1792b65..21efd2a 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -128,17 +128,20 @@ fi
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if test x$THREADS = xyes; then
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TEMP_LIBS="$TEMP_LIBS -pthread"
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TEMP_CFLAGS="${TEMP_CFLAGS} -D_THREAD_SAFE"
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-fi
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##############################################################################
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### Check for pthread_setname_np (nonstandard GNU extension)
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##############################################################################
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-AC_MSG_CHECKING([for pthread_setname_np])
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-AC_COMPILE_IFELSE(
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+ AC_MSG_CHECKING([for pthread_setname_np])
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+ HOLD_LIBS="$LIBS"
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+ LIBS="$TEMP_LIBS"
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+ AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([#include <pthread.h>], [pthread_setname_np(pthread_self(), "name")])],
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[AC_DEFINE([HAVE_PTHREAD_SETNAME_NP], [1], [Define if you have pthread_setname_np function.])
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AC_MSG_RESULT([yes])],
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[AC_MSG_RESULT([no])] )
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+ LIBS="$HOLD_LIBS"
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+fi
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##############################################################################
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### Check for JPG
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--
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2.14.1
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