X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsupport%2Fdebug.h;h=a4887db7ae72573f07c588f25d4ae13536e904fa;hb=faa87bf9f30b943397429a04254d96963bbf38bc;hp=4d5038de7d25acb7787dda4c874dcd4dbd5d5e37;hpb=704328d3488c75733ddeb9ad5439b1907e323e39;p=lyx.git

diff --git a/src/support/debug.h b/src/support/debug.h
index 4d5038de7d..a4887db7ae 100644
--- a/src/support/debug.h
+++ b/src/support/debug.h
@@ -17,6 +17,10 @@
 
 #include "support/strfwd.h"
 
+// Forward definitions do not work with libc++
+// but ios_base has already been defined in strfwd
+// if compiling with it
+#ifndef  _LIBCPP_VERSION
 namespace std {
 
 class ios_base;
@@ -25,6 +29,7 @@ template<typename CharT, typename Traits> class basic_streambuf;
 typedef basic_streambuf<char, char_traits<char> > streambuf;
 
 }
+#endif
 
 
 namespace lyx {