Add support for _IO_getc function used on linux


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5883 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp b/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
index 3b4090b..824d2e2 100644
--- a/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
+++ b/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
@@ -666,6 +666,11 @@
   return GV;
 }
 
+// int _IO_getc(FILE *stream);
+GenericValue lle_X__IO_getc(FunctionType *F, const vector<GenericValue> &Args) {
+  return lle_X_getc(F, Args);
+}
+
 // int fputc(int C, FILE *stream);
 GenericValue lle_X_fputc(FunctionType *M, const vector<GenericValue> &Args) {
   assert(Args.size() == 2);
@@ -749,6 +754,7 @@
   FuncNames["lle_X_fflush"]       = lle_X_fflush;
   FuncNames["lle_X_fgetc"]        = lle_X_getc;
   FuncNames["lle_X_getc"]         = lle_X_getc;
+  FuncNames["lle_X__IO_getc"]     = lle_X__IO_getc;
   FuncNames["lle_X_fputc"]        = lle_X_fputc;
   FuncNames["lle_X_ungetc"]       = lle_X_ungetc;
   FuncNames["lle_X_fprintf"]      = lle_X_fprintf;