Remove all GCC 4.6 support; new minimum is GCC 5.4.

.travis.yml

@@ -9,15 +9,14 @@ matrix:
         sources:
           - ubuntu-toolchain-r-test
         packages:
-          - gcc-4.6
-          - g++-4.6
+          - gcc-5
+          - g++-5
     env: >-
       TRAVIS_OS_NAME=linux
       TRAVIS_BUILD_SYSTEM=Makefile
-      HYPERROGUE_CXX=g++-4.6
+      HYPERROGUE_CXX=g++-5
       HYPERROGUE_USE_GLEW=1
       HYPERROGUE_USE_PNG=1
-      EXTRA_CXXFLAGS=-DGCC46
   - os: linux
     compiler: gcc
     env: >-

Makefile.simple

@@ -33,11 +33,7 @@ else
   ifneq (,$(findstring clang,$(TOOLCHAIN_VERSION_S)))
     TOOLCHAIN := clang
   else
-    ifneq (,$(findstring 4.6.,$(TOOLCHAIN_VERSION_S)))
-      TOOLCHAIN := gcc46
-    else
-      TOOLCHAIN := gcc
-    endif
+    TOOLCHAIN := gcc
   endif
 endif
 
@@ -95,12 +91,6 @@ ifeq (${TOOLCHAIN},gcc)
   CXXFLAGS_EARLY += -Wno-unknown-warning-option -Wno-maybe-uninitialized -Wno-missing-field-initializers -Wno-unused-parameter -Wno-implicit-fallthrough -Wno-maybe-uninitialized
 endif
 
-ifeq (${TOOLCHAIN},gcc46)
-  CXXFLAGS_EARLY += -std=c++0x
-  CXXFLAGS_EARLY += -W -Wall -Wextra -Werror
-  CXXFLAGS_EARLY += -Wno-unknown-warning-option -Wno-missing-field-initializers -Wno-unused-parameter -Wno-implicit-fallthrough -Wno-maybe-uninitialized
-endif
-
 ifeq (${TOOLCHAIN},mingw)
   CXXFLAGS_EARLY += -std=c++11 -march=native
   CXXFLAGS_EARLY += -W -Wall -Wextra -Werror

hyperpoint.cpp

@@ -47,21 +47,11 @@ eVariation variation;
 struct hyperpoint : array<ld, MAXMDIM> {
   hyperpoint() {}
   
-  #if ISGCC46
-  #if MAXMDIM == 4
-  // aaa
-  constexpr hyperpoint(ld x, ld y, ld z, ld w) : array<ld, MAXMDIM> { (array<ld, MAXMDIM>) {{x, y, z, w}}} {}
-  #else
-  constexpr hyperpoint(ld x, ld y, ld z, ld w) : array<ld, MAXMDIM> { (array<ld, MAXMDIM>) {{x, y, z}}} {}
-  #endif
-
-  #else
   #if MAXMDIM == 4
   constexpr hyperpoint(ld x, ld y, ld z, ld w) : array<ld, MAXMDIM> {{x,y,z,w}} {}
   #else
   constexpr hyperpoint(ld x, ld y, ld z, ld w) : array<ld, MAXMDIM> {{x,y,z}} {}
   #endif
-  #endif
 
   inline hyperpoint& operator *= (ld d) {
     for(int i=0; i<MDIM; i++) self[i] *= d;

savemem.cpp

@@ -216,7 +216,7 @@ EX void apply_memory_reserve() {
       }
     }
   catch(std::bad_alloc&) {}
-  #if (ISGCC46 || ISWINDOWS)
+  #if ISWINDOWS
   // no get_new_handler on this compiler...
   default_handler = [] { throw std::bad_alloc(); };
   #else

sysconfig.h

@@ -48,13 +48,6 @@
 #define ISSTEAM 0
 #endif
 
-#if GCC46
-#define override
-#define ISGCC46 1
-#else
-#define ISGCC46 0
-#endif
-
 #ifndef ISWEB
 #define ISWEB 0
 #endif