Update check-libstdc++ for clang

diff --git a/src/check-libstdc++.sh b/src/check-libstdc++.sh
index 27deb42..b541828 100755 (executable)
--- a/src/check-libstdc++.sh
+++ b/src/check-libstdc++.sh
@@ -19,9 +19,9 @@ for suffix in so dylib; do
        so=.libs/libharfbuzz.$suffix
        if ! test -f "$so"; then continue; fi
 
-       echo "Checking that we are not linking to libstdc++"
-       if ldd $so | grep 'libstdc[+][+]'; then
-               echo "Ouch, linked to libstdc++"
+       echo "Checking that we are not linking to libstdc++ or libc++"
+       if ldd $so | grep 'libstdc[+][+]\|libc[+][+]'; then
+               echo "Ouch, linked to libstdc++ or libc++"
                stat=1
        fi
        tested=true