fix debian build failure; refs #12

configure.in

@@ -27,7 +27,7 @@ m4_define(x_minor, 1)
 PACKAGENAME=x_packagename
 MAJOR=x_major
 MINOR=x_minor
-BUILDDATE=$(date "+%d.%m.%Y/%H.%M")
+BUILDDATE=$(date -R)
 
 if svn info . 2>&1 > /dev/null; then
     LEAST=$(LANG= svn info $path | sed -n 's/Revision: //p')

src/mrw/checkcxx11.hxx

@@ -14,19 +14,21 @@
 #    if __cplusplus < 201103L
 #      if __cplusplus==1
 #        if __APPLE__
+#          if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_9
              /// Code is compiled with 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 most compilers fully support C++11. So
                  this workaround will be removed in future releases,
                  when support for C++11 is more common. Only rely on
-               this workaround, if you really have to.
+                 this workaround, if you really have to.  Mac gcc is
-               Mac gcc is even worse than on other systems. */
+                 even worse than on other systems. */
 #            define MRW__OLD_PRE11_COMPILER
 #            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
 #        else
            // __cplusplus==1 is a known bug in gcc 4.6.3
 #          warning your compiler has a know bug, please upgrade to gcc >= 4.7
@@ -69,16 +71,16 @@ namespace std {
 };
 #    else
 #      warning trying standard C++11 support
+#      include <memory>
 #    endif
-#  elif __APPLE__
+#  elif __APPLE__ && MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_9
-#    if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_9
      /// 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
+         compilers. These workarounds are deprecated, but will remain
-           remain until most compilers fully support C++11. So this
+         until most compilers fully support C++11. So this workaround
-           workaround will be removed in future releases, when support
+         will be removed in future releases, when support for C++11 is
-           for C++11 is more common. Only rely on this workaround, if
+         more common. Only rely on this workaround, if you really have
-           you really have to. */
+         to. */
 #    define MRW__OLD_PRE11_COMPILER
 #    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
@@ -96,6 +98,8 @@ namespace std {
        };
      }
 #    endif
+#  else
+#    include <memory>
 #  endif
 
 #endif