libstdc++: Add #error to some files that depend on a specific standard mode

Give more explicit errors if these files are not built with the correct
-std options.

libstdc++-v3/ChangeLog:

	* src/c++98/locale_init.cc: Require C++11.
	* src/c++98/localename.cc: Likewise.
	* src/c++98/misc-inst.cc: Require C++98.

diff --git a/libstdc++-v3/src/c++98/locale_init.cc b/libstdc++-v3/src/c++98/locale_init.cc
index 4bec50bf595ebf7c8ee74811095823fe1fb50f23..e96b1a336aadcf49a801a47a8332f78d7982078a 100644 (file)
--- a/libstdc++-v3/src/c++98/locale_init.cc
+++ b/libstdc++-v3/src/c++98/locale_init.cc
@@ -20,6 +20,10 @@
 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 // <http://www.gnu.org/licenses/>.
 
+#if __cplusplus != 201103L
+# error This file must be compiled as C++11
+#endif
+
 #define _GLIBCXX_USE_CXX11_ABI 1
 #include <clocale>
 #include <cstring>

diff --git a/libstdc++-v3/src/c++98/localename.cc b/libstdc++-v3/src/c++98/localename.cc
index 350dcf5ad0f1c017f1880393f3372cf8810dfb04..9c707b2327cd5d99501e33ff1d79a691655208f1 100644 (file)
--- a/libstdc++-v3/src/c++98/localename.cc
+++ b/libstdc++-v3/src/c++98/localename.cc
@@ -20,6 +20,10 @@
 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 // <http://www.gnu.org/licenses/>.
 
+#if __cplusplus != 201103L
+# error This file must be compiled as C++11
+#endif
+
 #define _GLIBCXX_USE_CXX11_ABI 1
 #include <clocale>
 #include <cstring>

diff --git a/libstdc++-v3/src/c++98/misc-inst.cc b/libstdc++-v3/src/c++98/misc-inst.cc
index 098519036007e62c452a2fd65fa85cb9c33f5d65..85a4287e113faa05826a7de2cc7d6d8341663e7a 100644 (file)
--- a/libstdc++-v3/src/c++98/misc-inst.cc
+++ b/libstdc++-v3/src/c++98/misc-inst.cc
@@ -26,6 +26,10 @@
 // ISO C++ 14882:
 //
 
+#if __cplusplus != 199711L
+# error This file must be compiled as C++98
+#endif
+
 #define _GLIBCXX_USE_CXX11_ABI 1
 #define _GLIBCXX_DISAMBIGUATE_REPLACE_INST 1
 #include <string>