Simple math function bindings generates a missing symbol on Linux (works ok on Win/OSX)

sym-test.reds

Red/System []

#import [
    LIBC-file cdecl [
        sin: "sin" [
	    x       [float!]
	    return: [float!]
        ]
    ]
]
a: sin 3.14159265358979

;;-- compiling it on Linux using float-partial branch produces the following error message:
;;-- # ./sym-test
;;-- ./sym-test: symbol lookup error: ./sym-test: undefined symbol: sin