re PR libstdc++/66030 ([5.1.0] std::codecvt_byname missing from libstdc++ DLL)

	PR libstdc++/66030
	* config/abi/pre/gnu.ver: Export codecvt_byname and codecvt symbols
	for mingw32.

From-SVN: r224273

libstdc++-v3/ChangeLog

+2015-06-09  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/66030
+	* config/abi/pre/gnu.ver: Export codecvt_byname and codecvt symbols
+	for mingw32.
+
 2015-06-08  Jonathan Wakely  <jwakely@redhat.com>
 
 	PR libstdc++/66441

libstdc++-v3/config/abi/pre/gnu.ver

@@ -542,6 +542,9 @@ GLIBCXX_3.4 {
     # std::codecvt_byname
     _ZNSt14codecvt_bynameI[cw]c11__mbstate_tEC[12]EPKc[jmy];
     _ZNSt14codecvt_bynameI[cw]c11__mbstate_tED*;
+#if defined (_WIN32) && !defined (__CYGWIN__)
+    _ZNSt14codecvt_bynameI[cw]ciE[CD]*;
+#endif
 
     # std::collate
     _ZNSt7collateI[cw]*;
@@ -1821,9 +1824,9 @@ GLIBCXX_3.4.21 {
     _ZNKSt8time_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE6do_getES3_S3_RSt8ios_baseRSt12_Ios_IostateP2tmcc;
 
     # codecvt<char16_t, char, mbstate_t>, codecvt<char32_t, char, mbstate_t>
-    _ZNKSt7codecvtID[is]c11__mbstate_t*;
-    _ZNSt7codecvtID[is]c11__mbstate_t*;
-    _ZT[ISV]St7codecvtID[is]c11__mbstate_tE;
+    _ZNKSt7codecvtID[is]c*;
+    _ZNSt7codecvtID[is]c*;
+    _ZT[ISV]St7codecvtID[is]c*E;
 
     extern "C++"
     {