From: Michael Jeanson <mjeanson@efficios.com>
Date: Mon, 27 Jun 2016 18:54:20 +0000 (-0400)
Subject: Fix: remove AC_FUNC_MALLOC from configure.ac
X-Git-Tag: v0.8.10~5
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=6303a62a6f1d8879b64986328a6c4d051c919b77;p=userspace-rcu.git

Fix: remove AC_FUNC_MALLOC from configure.ac

AC_FUNC_MALLOC fails cross-compile builds and is
only used to detect non-standard glibc behavior where
malloc(0) does not return a null pointer.

We don't depend on that behavior since we would have
to ship a compat implementation of malloc() for this
macro to be of any use.

Keep it commented because autoscan will report it
as missing and it might get re-introduced.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/configure.ac b/configure.ac
index 6d8c15f..1f41cf3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -54,10 +54,12 @@ AC_TYPE_PID_T
 AC_TYPE_SIZE_T
 
 # Checks for library functions.
-AC_FUNC_MALLOC
 AC_FUNC_MMAP
 AC_CHECK_FUNCS([bzero gettimeofday munmap sched_getcpu strtoul sysconf])
 
+# AC_FUNC_MALLOC causes problems when cross-compiling.
+#AC_FUNC_MALLOC
+
 # Find arch type
 AS_CASE([$host_cpu],
 	[i386], [ARCHTYPE="x86" && SUBARCHTYPE="x86compat"],