🚀 go-pugleaf

I believe in the following code, the GNU C++ compiler incorrectly
complains about "unexpected argument to constructor `Match'"; the
default copy constructor should get generated and used by the compiler
(if "vec2" is replaced with "float", there is no complaint).

================================================================
struct vec2 {
	float x,y;
	vec2() {}
	vec2(float x,float y):x(x),y(y) {}
};

struct Match {
	vec2 t;
	vec2 r;
	float quality;
	float maxerr;
};

Match f() {
	Match x;
	return x;
}
================================================================
cd /fs/vision01/tmb/src/char/
gcc -c -g -v test.cc
Reading specs from /sym/gnu/lib/gcc-lib/sparc/2.2.2/specs
gcc version 2.2.2
 /sym/gnu/lib/gcc-lib/sparc/2.2.2/cpp -lang-c++ -v -undef -D__GNUC__=2 -D__GNUG__=2 -D__cplusplus -Dsparc -Dsun -Dunix -D__sparc__ -D__sun__ -D__unix__ -D__sparc -D__sun -D__unix -g test.cc /local/tmp/cca11642.i
GNU CPP version 2.2.2 (sparc)
 /sym/gnu/lib/gcc-lib/sparc/2.2.2/cc1plus /local/tmp/cca11642.i -quiet -dumpbase test.cc -g -version -o /local/tmp/cca11642.s
GNU C++ version 2.2.2 (sparc) compiled by GNU C version 2.2.2.
test.cc: In function `struct Match f ()':
test.cc:16: unexpected argument to constructor `Match'

Compilation exited abnormally with code 1 at Sun Aug  9 16:42:03