Add a specific configury check to test compilability of the
<thread> C++ header file by the selected compiler.
Suggested by Bart Van Assche.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13628 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/configure.ac b/configure.ac
index 42f2ac5..1970ace 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1381,6 +1381,30 @@
])
+# Check whether compiler can process #include <thread> without errors
+# clang 3.3 cannot process <thread> from e.g.
+# gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
+
+AC_MSG_CHECKING([that C++ compiler can include <thread> header file])
+AC_LANG(C++)
+safe_CXXFLAGS=$CXXFLAGS
+CXXFLAGS=-std=c++0x
+
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+#include <thread>
+])],
+[
+ac_cxx_can_include_thread_header=yes
+AC_MSG_RESULT([yes])
+], [
+ac_cxx_can_include_thread_header=no
+AC_MSG_RESULT([no])
+])
+CXXFLAGS=$safe_CXXFLAGS
+AC_LANG(C)
+
+AM_CONDITIONAL(CXX_CAN_INCLUDE_THREAD_HEADER, test x$ac_cxx_can_include_thread_header = xyes)
+
#----------------------------------------------------------------------------
# Checking for supported compiler flags.
#----------------------------------------------------------------------------
diff --git a/drd/tests/Makefile.am b/drd/tests/Makefile.am
index dabbe52..fd38e34 100644
--- a/drd/tests/Makefile.am
+++ b/drd/tests/Makefile.am
@@ -367,7 +367,7 @@
# clang 3.3 will generate errors about libstdc++ headers from
# gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
-if ! COMPILER_IS_CLANG
+if CXX_CAN_INCLUDE_THREAD_HEADER
if HAVE_SHARED_POINTER_ANNOTATION
check_PROGRAMS += \
std_thread
