scons: Don't use gstabs on mingw-64.
diff --git a/scons/crossmingw.py b/scons/crossmingw.py
index 893002f..23c56c0 100644
--- a/scons/crossmingw.py
+++ b/scons/crossmingw.py
@@ -221,9 +221,11 @@
env['LIBPREFIXES'] = [ 'lib', '' ]
env['LIBSUFFIXES'] = [ '.a', '.lib' ]
- # MinGW port of gdb does not handle well dwarf debug info which is the
- # default in recent gcc versions
- env.AppendUnique(CCFLAGS = ['-gstabs'])
+ # MinGW x86 port of gdb does not handle well dwarf debug info which is the
+ # default in recent gcc versions. The x64 port gdb from mingw-w64 seems to
+ # handle it fine though, so stick with the default there.
+ if env['machine'] != 'x86_64':
+ env.AppendUnique(CCFLAGS = ['-gstabs'])
env.AddMethod(compile_without_gstabs, 'compile_without_gstabs')