use -std=c++0x instead of -std=gnu++0x

as -std=gnu++0x seems to break compiling ld64 on some systems

build.sh

@@ -172,6 +172,9 @@ extract $CCTOOLS_TARBALL 1
 
 pushd cctools*/cctools &>/dev/null
 pushd .. &>/dev/null
+if [ $LINKER_VERSION != "134.9" ]; then
+  patch -p0 < $PATCH_DIR/cctools-f19cc13.patch
+fi
 if [ "$PLATFORM" == "Linux" ]; then
   patch -p0 < $PATCH_DIR/cctools-old-linux.patch
 fi

patches/cctools-f19cc13.patch

@@ -0,0 +1,25 @@
+diff --git cctools/configure.ac cctools/configure.ac
+index 8b59f6b..3411e34 100644
+--- cctools/configure.ac
++++ cctools/configure.ac
+@@ -12,7 +12,7 @@ CXX=clang++
+ 
+ CFLAGS="$CFLAGS `cat tmp/cflags 2>/dev/null`"
+ CFLAGS="$CFLAGS -isystem /usr/local/include -isystem /usr/pkg/include -O3"
+-CXXFLAGS="$CXXFLAGS -std=gnu++0x `cat tmp/cxxflags 2>/dev/null`"
++CXXFLAGS="$CXXFLAGS -std=c++0x `cat tmp/cxxflags 2>/dev/null`"
+ CXXFLAGS="$CXXFLAGS -isystem /usr/local/include -isystem /usr/pkg/include -O3"
+ 
+ LDFLAGS="$LDFLAGS -L/usr/local/lib `cat tmp/ldflags 2>/dev/null`"
+diff --git cctools/ld64/src/ld/code-sign-blobs/memutils.h cctools/ld64/src/ld/code-sign-blobs/memutils.h
+index 8fa48d6..bcf1a23 100644
+--- cctools/ld64/src/ld/code-sign-blobs/memutils.h
++++ cctools/ld64/src/ld/code-sign-blobs/memutils.h
+@@ -33,6 +33,7 @@
+ #include <stdlib.h>
+ #include <algorithm>
+ 
++using namespace __gnu_cxx;
+ 
+ //
+ // Encapsulate these very sharp tools in a separate (ugly-named) namespace

tools/tools.sh

@@ -98,7 +98,7 @@ function check_cxx_stdlib()
 {
   set +e
 
-  $CXX $CXXFLAGS -std=gnu++0x $BASE_DIR/tools/stdlib-test.cpp -S -o- \
+  $CXX $CXXFLAGS -std=c++0x $BASE_DIR/tools/stdlib-test.cpp -S -o- \
     2>$BUILD_DIR/stdlib-test.log 1>/dev/null
   echo "$?"