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Today's Topics:
1. [PATCH] configure: check for execinfo.h (Yann E. MORIN)
----------------------------------------------------------------------
Message: 1
Date: Thu, 24 Dec 2015 13:55:25 +0100
From: "Yann E. MORIN" <[email protected]>
To: [email protected]
Subject: [PATCH] configure: check for execinfo.h
Message-ID:
<[email protected]>
Not all toolchains have execinfo.h. For example, support for it is
optional in uClibc, while it is entirely missing from musl.
Add a check in configure to look for it.
Since execinfo.h is /only/ used to dump a backtrace in case of failure,
just do nothing when execinfo.h is missing.
Signed-off-by: "Yann E. MORIN" <[email protected]>
---
configure.ac | 2 ++
src/log.c | 4 ++++
2 files changed, 6 insertions(+)
diff --git a/configure.ac b/configure.ac
index b51d6b3..28e657b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -182,6 +182,8 @@ AC_CHECK_LIB(resolv, ns_initparse, dummy=yes, [
AC_MSG_ERROR(resolver library support is required))
])
+AC_CHECK_HEADERS([execinfo.h])
+
AC_CHECK_FUNC(signalfd, dummy=yes,
AC_MSG_ERROR(signalfd support is required))
diff --git a/src/log.c b/src/log.c
index a693bd0..76e10e7 100644
--- a/src/log.c
+++ b/src/log.c
@@ -30,7 +30,9 @@
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
+#if defined(HAVE_EXECINFO_H)
#include <execinfo.h>
+#endif
#include <dlfcn.h>
#include "connman.h"
@@ -112,6 +114,7 @@ void connman_debug(const char *format, ...)
static void print_backtrace(unsigned int offset)
{
+#if defined(HAVE_EXECINFO_H)
void *frames[99];
size_t n_ptrs;
unsigned int i;
@@ -210,6 +213,7 @@ static void print_backtrace(unsigned int offset)
close(outfd[1]);
close(infd[0]);
+#endif /* HAVE_EXECINFO_H */
}
static void signal_handler(int signo)
--
1.9.1
------------------------------
Subject: Digest Footer
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