[libcxx] r337665 - Work around various GCC 4.9 build errors

[Eric Fiselier via cfe-commits]

Author: ericwf
Date: Sun Jul 22 20:06:57 2018
New Revision: 337665

URL: http://llvm.org/viewvc/llvm-project?rev=337665&view=rev
Log:
Work around various GCC 4.9 build errors

Modified:
    libcxx/trunk/src/experimental/filesystem/filesystem_common.h
    libcxx/trunk/src/experimental/filesystem/operations.cpp

Modified: libcxx/trunk/src/experimental/filesystem/filesystem_common.h
URL: 
http://llvm.org/viewvc/llvm-project/libcxx/trunk/src/experimental/filesystem/filesystem_common.h?rev=337665&r1=337664&r2=337665&view=diff
==============================================================================
--- libcxx/trunk/src/experimental/filesystem/filesystem_common.h (original)
+++ libcxx/trunk/src/experimental/filesystem/filesystem_common.h Sun Jul 22 
20:06:57 2018
@@ -72,6 +72,7 @@ static std::string format_string_imp(con
   struct GuardVAList {
     va_list& target;
     bool active = true;
+    GuardVAList(va_list &target) : target(target), active(true) {}
     void clear() {
       if (active)
         va_end(target);
@@ -84,11 +85,11 @@ static std::string format_string_imp(con
   };
   va_list args;
   va_start(args, msg);
-  GuardVAList args_guard = {args};
+  GuardVAList args_guard(args);
 
   va_list args_cp;
   va_copy(args_cp, args);
-  GuardVAList args_copy_guard = {args_cp};
+  GuardVAList args_copy_guard(args_cp);
 
   std::array<char, 256> local_buff;
   std::size_t size = local_buff.size();
@@ -131,7 +132,7 @@ std::error_code capture_errno() {
 template <class T>
 T error_value();
 template <>
-constexpr void error_value<void>() {}
+_LIBCPP_CONSTEXPR_AFTER_CXX11 void error_value<void>() {}
 template <>
 constexpr bool error_value<bool>() {
   return false;
@@ -141,7 +142,7 @@ constexpr uintmax_t error_value<uintmax_
   return uintmax_t(-1);
 }
 template <>
-constexpr file_time_type error_value<file_time_type>() {
+_LIBCPP_CONSTEXPR_AFTER_CXX11 file_time_type error_value<file_time_type>() {
   return file_time_type::min();
 }
 template <>
@@ -369,7 +370,7 @@ TimeSpec extract_atime(StatT const& st)
 using TimeStruct = struct ::timeval;
 using TimeStructArray = TimeStruct[2];
 #else
-using TimeStruct = struct ::timespec;
+using TimeStruct = TimeSpec;
 using TimeStructArray = TimeStruct[2];
 #endif
 
@@ -413,8 +414,6 @@ bool SetTimeStructTo(TimeStruct& TS, fil
 
 _LIBCPP_END_NAMESPACE_EXPERIMENTAL_FILESYSTEM
 
-#if defined(__GNUC__)
-#pragma GCC diagnostic pop
-#endif
+
 
 #endif // FILESYSTEM_COMMON_H

Modified: libcxx/trunk/src/experimental/filesystem/operations.cpp
URL: 
http://llvm.org/viewvc/llvm-project/libcxx/trunk/src/experimental/filesystem/operations.cpp?rev=337665&r1=337664&r2=337665&view=diff
==============================================================================
--- libcxx/trunk/src/experimental/filesystem/operations.cpp (original)
+++ libcxx/trunk/src/experimental/filesystem/operations.cpp Sun Jul 22 20:06:57 
2018
@@ -36,6 +36,12 @@
 # define _LIBCPP_USE_COPYFILE
 #endif
 
+#if defined(_LIBCPP_COMPILER_GCC)
+#if _GNUC_VER < 500
+#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
+#endif
+#endif
+
 _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL_FILESYSTEM
 
 filesystem_error::~filesystem_error() {}
@@ -446,7 +452,7 @@ bool stat_equivalent(const StatT& st1, c
 file_status FileDescriptor::refresh_status(std::error_code& ec) {
   // FD must be open and good.
   m_status = file_status{};
-  m_stat = StatT{};
+  m_stat = {};
   std::error_code m_ec;
   if (::fstat(fd, &m_stat) == -1)
     m_ec = capture_errno();


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