Exception is not only for Linux, also for MinGW; refs #10

src/mrw/checkcxx11.hxx

@@ -12,6 +12,11 @@
 // otherwise there is a fallback wich makes everything much more compliacted
 #  ifndef MRW__OLD_PRE11_COMPILER
 #    if __cplusplus < 201103L
+#      if __cplusplus==1
+         // __cplusplus==1 is a known bug in gcc 4.6.3
+#        warning your compiler has a know bug, please upgrade to gcc >= 4.7
+#        warning see __cplusplus in http://gcc.gnu.org/gcc-4.7/changes.html
+#      else
          /// Code is compiled with an old non C++11 standard compliant compiler
          /** There are workarounds for old non C++11 compatible
              compilers. These workarounds are deprecated, but will remain until
@@ -19,22 +24,13 @@
              removed in future releases, when support for C++11 is more
              common. Only rely on this workaround, if you really have to. */
 #        define MRW__OLD_PRE11_COMPILER
-#      warning you need a C++11 compliant compiler, on gcc use option -std=c++11
+#        warning you need a C++11 compliant compiler, on gcc: add -std=c++11
 #        warning emulating C++11 - this changes the way you use the library
 #        warning this is deprecated and will be removed in future releases
 #        warning refere to the library documentation for more details
 #      endif
 #    endif
-
-#  if __cplusplus==1
-// __cplusplus==1 is a known bug in gcc 4.6.3
-#    warning your compiler has a know bug, please upgrade to gcc >= 4.7
-#    warning see __cplusplus in http://gcc.gnu.org/gcc-4.7/changes.html
-#    ifdef __linux__
-#      undef MRW__OLD_PRE11_COMPILER
 #  endif
-#  endif
-
 
 #  ifdef MRW__OLD_PRE11_COMPILER
 #    if __cplusplus<200300L