From: Florian Krohm <florian@eich-krohm.de>
Date: Sat, 8 Dec 2012 19:26:03 +0000 (+0000)
Subject: Make sys-openat test conditional upon the existence of AT_FDCWD.
X-Git-Tag: svn/VALGRIND_3_9_0~501
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c76e43290caabb31fd6b9fc6437a599108c8ee0;p=thirdparty%2Fvalgrind.git

Make sys-openat test conditional upon the existence of AT_FDCWD.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13171
---

diff --git a/configure.in b/configure.in
index 31e08150e3..0adec58511 100644
--- a/configure.in
+++ b/configure.in
@@ -997,6 +997,27 @@ AM_CONDITIONAL(VGCONF_PLATVARIANT_IS_ANDROID,
 # Checking for various library functions and other definitions
 #----------------------------------------------------------------------------
 
+# Check for AT_FDCWD
+
+AC_MSG_CHECKING([for AT_FDCWD])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <unistd.h>
+]], [[
+  int a = AT_FDCWD;
+]])], [
+ac_have_at_fdcwd=yes
+AC_MSG_RESULT([yes])
+], [
+ac_have_at_fdcwd=no
+ac_gcc_have_dfp_type=no
+AC_MSG_RESULT([no])
+])
+
+AM_CONDITIONAL([HAVE_AT_FDCWD], [test x$ac_have_at_fdcwd = xyes])
+
+
 # Check for CLOCK_MONOTONIC
 
 AC_MSG_CHECKING([for CLOCK_MONOTONIC])
diff --git a/memcheck/tests/linux/Makefile.am b/memcheck/tests/linux/Makefile.am
index 4cccf56d83..4cc911358b 100644
--- a/memcheck/tests/linux/Makefile.am
+++ b/memcheck/tests/linux/Makefile.am
@@ -31,10 +31,12 @@ check_PROGRAMS = \
 	stack_switch \
 	syscalls-2007 \
 	syslog-syscall \
-	sys-openat \
 	timerfd-syscall \
 	proc-auxv
 
+if HAVE_AT_FDCWD
+check_PROGRAMS += sys-openat
+endif
 
 AM_CFLAGS   += $(AM_FLAG_M3264_PRI)
 AM_CXXFLAGS += $(AM_FLAG_M3264_PRI)
diff --git a/memcheck/tests/linux/sys-openat.vgtest b/memcheck/tests/linux/sys-openat.vgtest
index c33b9db4b7..03c8fda5cb 100644
--- a/memcheck/tests/linux/sys-openat.vgtest
+++ b/memcheck/tests/linux/sys-openat.vgtest
@@ -1 +1,2 @@
+prereq: test -e ./sys-openat
 prog: sys-openat