[llvm-commits] [llvm] r114165 - /llvm/trunk/lib/System/SearchForAddressOfSpecialSymbol.cpp

[Daniel Dunbar]

Author: ddunbar
Date: Thu Sep 16 23:25:24 2010
New Revision: 114165

URL: http://llvm.org/viewvc/llvm-project?rev=114165&view=rev
Log:
System: Don't reexport ___eprintf when building with Clang; this symbol isn't
used on Darwin anymore, and Clang might not always link with the library it is
currently found in.

Modified:
    llvm/trunk/lib/System/SearchForAddressOfSpecialSymbol.cpp

Modified: llvm/trunk/lib/System/SearchForAddressOfSpecialSymbol.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/System/SearchForAddressOfSpecialSymbol.cpp?rev=114165&r1=114164&r2=114165&view=diff
==============================================================================
--- llvm/trunk/lib/System/SearchForAddressOfSpecialSymbol.cpp (original)
+++ llvm/trunk/lib/System/SearchForAddressOfSpecialSymbol.cpp Thu Sep 16 23:25:24 2010
@@ -32,7 +32,14 @@
     EXPLICIT_SYMBOL(__ashrdi3);
     EXPLICIT_SYMBOL(__cmpdi2);
     EXPLICIT_SYMBOL(__divdi3);
+
+    // Clang doesn't always link against libgcc.a, which is the only thing which
+    // defines ___eprintf in the modern world. Just don't attempt to export this
+    // symbol when building with Clang.
+#ifndef __clang__
     EXPLICIT_SYMBOL(__eprintf);
+#endif
+
     EXPLICIT_SYMBOL(__fixdfdi);
     EXPLICIT_SYMBOL(__fixsfdi);
     EXPLICIT_SYMBOL(__fixunsdfdi);