SVN handles and Git names are merged into one person.
Fix STARTUP_WINDOW=0 on Windows so that the resource objects are built, but the editor's startup window is not. DONT_BUILD.
Extend STARTUP_WINDOW to GTK. DONT_BUILD.
Fold OSX_STARTUPWINDOW into STARTUP_WINDOW. DONT_BUILD.
Remove -fno-pic from everywhere. This should fix building on Ubuntu 16.10 and any other platform that has PIE enabled.
Allow an invocation like `make CC=clang-3.8` to work properly.
Only apply $(ARCH) processing code on Macs.
Switch the detection order of OPTOPT flags so that i386 is checked after x86_64. This ensures full compatibility for fat OS X binaries built using ARCH="-arch i386 -arch x86_64".
Create GTK *_banner.c files in obj/ subfolders instead of rsrc/ so that they don't need separate cleanup rules.
Make Objective-C code build as Objective-C++ when we build C code as C++.
Add extra optimization defaults for OS X builds since all Intel Macs are guaranteed certain features due to the time of their debut.
Clean up handling of architectures.
Convert object lists to an escaped multi-line format for better diffing.
Add some missing dependencies on the folders in which objects are created.
Add L_CXXONLYFLAGS, and use it to pass "-static-libstdc++" on Windows.
Remove STATICSTDCPP variable.
Rename "CPPONLYFLAGS" variable to "CXXONLYFLAGS", since "CPPFLAGS" traditionaly refers to the C preprocessor, not C++.
