glslc writes bad dependency file if `-o -` about shaderc HOT 3 CLOSED

#!/bin/bash

setup() {
    # Clean!
    rm -f hello* ./-*

    cat >hello.c <<-EOF
	#include "hello.h"
	
	int main(void) {
	    hello();
	    return 0;
	}
	EOF

    cat >hello.h <<-EOF
	#include <stdio.h>
	
	static inline void
	hello(void) {
	    printf("hello!\n");
	}
	EOF
}

start_test() {
    test_name="$1"
    echo "test $test_name ..."
}

pass() {
    echo "test $test_name ... pass"
}

fail() {
    echo "test $test_name ... fail"
    exit 1
}

testA() {
    start_test "A"
    setup || fail
    gcc -S -o - -MMD hello.c >/dev/null || fail
    [[ -f ./-.d ]] || fail
    [[ $(cat ./-.d) = "-: hello.c hello.h" ]] || fail
    pass
}

testB() {
    start_test "B"
    setup || fail
    gcc -S -o - -MMD -MF hello.o.d -MT hello.o hello.c >/dev/null || fail
    [[ -f hello.o.d ]] || fail
    [[ $(cat hello.o.d) = "hello.o: hello.c hello.h" ]] || fail
    pass
}

testA
testB