memory settings saved; adjusted for the lack of get_new_handler on steam

config.cpp

@@ -224,6 +224,8 @@ void initConfig() {
   addsaver(vid.auto_eye, "auto-eyelevel", false);
   
   addsaver(memory_saving_mode, "memory_saving_mode", (ISMOBILE || ISPANDORA || ISWEB) ? 1 : 0);
+  addsaver(reserve_limit, "memory_reserve", 128);
+  addsaver(show_memory_warning, "show_memory_warning");
 
   addsaver(rug::renderonce, "rug-renderonce");
   addsaver(rug::rendernogl, "rug-rendernogl");

savemem.cpp

@@ -207,7 +207,12 @@ void apply_memory_reserve() {
       }
     }
   catch(std::bad_alloc&) {}
+  #if ((ISLINUX && ISSTEAM) || ISWINDOWS)
+  // no get_new_handler on this compiler...
+  default_handler = [] { throw std::bad_alloc(); };
+  #else
   default_handler = std::get_new_handler();
+  #endif
   if(reserve_count > 0) std::set_new_handler(reserve_handler);
   }
 

sysconfig.h

@@ -402,6 +402,7 @@ extern "C" {
 #include <set>
 #include <random>
 #include <complex>
+#include <new>
 
 #ifdef USE_UNORDERED_MAP
 #include <unordered_map>