Add a "fork" of musl as //fusl.

fusl/src/complex/clogl.c

Index: fusl/src/complex/clogl.c
diff --git a/fusl/src/complex/clogl.c b/fusl/src/complex/clogl.c
new file mode 100644
index 0000000000000000000000000000000000000000..18f16088d7a31082feb0ff51c6453e2ea1f8d64a
--- /dev/null
+++ b/fusl/src/complex/clogl.c
@@ -0,0 +1,18 @@
+#include "libm.h"
+
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+long double complex clogl(long double complex z)
+{
+	return clog(z);
+}
+#else
+// FIXME
+long double complex clogl(long double complex z)
+{
+	long double r, phi;
+
+	r = cabsl(z);
+	phi = cargl(z);
+	return CMPLXL(logl(r), phi);
+}
+#endif