b8a585d4ee
uclibc on m68k defines pthread_spinlock_t but does not define pthread_spin_trylock so check for this function before using it Fixes: - http://autobuild.buildroot.org/results/0a6de11c030a4f39e402917809fc6d33fb463d1b Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
52 lines
1.6 KiB
Diff
52 lines
1.6 KiB
Diff
From 98bd6106f8c48bc8f0a27bd712ed4ba6249e9a5f Mon Sep 17 00:00:00 2001
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From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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Date: Sun, 13 Jan 2019 11:03:51 +0100
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Subject: [PATCH] fix build on m68k with uclibc
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uclibc on m68k defines pthread_spinlock_t but does not define
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pthread_spin_trylock so check for this function before using it
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Fixes:
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- http://autobuild.buildroot.org/results/0a6de11c030a4f39e402917809fc6d33fb463d1b
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Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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[Upstream status: https://github.com/buytenh/ivykis/pull/17]
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---
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configure.ac | 3 +++
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src/spinlock.h | 4 ++++
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2 files changed, 7 insertions(+)
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diff --git a/lib/ivykis/configure.ac b/lib/ivykis/configure.ac
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index e9b10c0..24152a9 100644
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--- a/lib/ivykis/configure.ac
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+++ b/lib/ivykis/configure.ac
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@@ -110,6 +110,9 @@ AC_CACHE_CHECK(for linux/netfilter_ipv4.h, ac_cv_header_linux_netfilter_ipv4_h,
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# Check for pthread_spinlock_t.
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AC_CHECK_TYPES([pthread_spinlock_t], [], [], [[#include <pthread.h>]])
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+# Check for pthread_spin_trylock
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+AC_CHECK_FUNCS([pthread_spin_trylock])
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+
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# Check which header file defines 'struct timespec'.
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for hdr in sys/time.h sys/timers.h time.h pthread.h
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do
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diff --git a/lib/ivykis/src/spinlock.h b/lib/ivykis/src/spinlock.h
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index ebcdbec..d837df8 100644
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--- a/lib/ivykis/src/spinlock.h
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+++ b/lib/ivykis/src/spinlock.h
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@@ -76,7 +76,11 @@ static inline void fallback_spin_unlock(fallback_spinlock_t *lock)
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static inline int pthread_spinlocks_available(void)
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{
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+#ifdef HAVE_PTHREAD_SPIN_TRYLOCK
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return !!(pthread_spin_trylock != NULL);
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+#else
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+ return 0;
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+#endif
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}
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--
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2.14.1
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