diff --git a/include/llvm/Analysis/TargetLibraryInfo.def b/include/llvm/Analysis/TargetLibraryInfo.def
index 7798e3c..ade2b96 100644
--- a/include/llvm/Analysis/TargetLibraryInfo.def
+++ b/include/llvm/Analysis/TargetLibraryInfo.def
@@ -27,6 +27,15 @@
 #define TLI_DEFINE_STRING_INTERNAL(string_repr) string_repr,
 #endif
 
+// avoid name conflicts with musl-libc
+#undef fopen64
+#undef fseeko64
+#undef ftello64
+#undef fstat64
+#undef lstat64
+#undef stat64
+#undef tmpfile64
+
 /// void *new(unsigned int);
 TLI_DEFINE_ENUM_INTERNAL(msvc_new_int)
 TLI_DEFINE_STRING_INTERNAL("??2@YAPAXI@Z")
diff --git a/lib/Support/DynamicLibrary.cpp b/lib/Support/DynamicLibrary.cpp
index 9a7aeb5..e98ad80 100644
--- a/lib/Support/DynamicLibrary.cpp
+++ b/lib/Support/DynamicLibrary.cpp
@@ -143,7 +143,7 @@ void* DynamicLibrary::SearchForAddressOfSymbol(const char *symbolName) {
 // On linux we have a weird situation. The stderr/out/in symbols are both
 // macros and global variables because of standards requirements. So, we
 // boldly use the EXPLICIT_SYMBOL macro without checking for a #define first.
-#if defined(__linux__) and !defined(__ANDROID__)
+#if defined(__linux__) && defined(__GLIBC__)
   {
     EXPLICIT_SYMBOL(stderr);
     EXPLICIT_SYMBOL(stdout);