[Issue 20802] New: [REG2.088.0] Link failure with writefln

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20802

          Issue ID: 20802
           Summary: [REG2.088.0] Link failure with writefln
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: tim.dlang at t-online.de

The following code worked with 2.087.1, but doesn't link since 2.088.0:

//////////////////// test.d ///////////////////
import std.uni, std.stdio;

class C
{
    size_t number;
}

int main()
{
    C inst;

    mixin({
        while(false)
        {
            dchar current;
            CodepointSet(current);
        }
        return "";
    }());
    writefln("%d %d %d", inst.number, C.sizeof, inst.number );
    return 0;
}
///////////////////////////////////////////////

With 2.088.0 it produces the following link error:

/usr/bin/ld: test.o: in function
`_D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk':
test.d:(.text._D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk[_D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk]+0xd6):
undefined reference to
`_D3std6format__T9getNthIntVAyaa13_696e7465676572207769647468TmTmTmZQBzFNaNfkmmmZi'
/usr/bin/ld:
test.d:(.text._D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk[_D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk]+0x16f):
undefined reference to
`_D3std6format__T9getNthIntVAyaa13_696e7465676572207769647468TmTmTmZQBzFNaNfkmmmZi'
/usr/bin/ld:
test.d:(.text._D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk[_D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk]+0x1c6):
undefined reference to
`_D3std6format__T9getNthIntVAyaa17_696e746567657220707265636973696f6eTmTmTmZQChFNaNfkmmmZi'
/usr/bin/ld:
test.d:(.text._D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk[_D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk]+0x254):
undefined reference to
`_D3std6format__T9getNthIntVAyaa17_696e746567657220707265636973696f6eTmTmTmZQChFNaNfkmmmZi'
/usr/bin/ld:
test.d:(.text._D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk[_D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk]+0x2a0):
undefined reference to
`_D3std6format__T9getNthIntVAyaa21_736570617261746f72206469676974207769647468TmTmTmZQCpFNaNfkmmmZi'
/usr/bin/ld:
test.d:(.text._D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk[_D3std6format__T14formattedWriteTSQBg5stdio4File17LockingTextWriterTaTmTmTmZQCiFNfKQByMxAammmZk]+0x2c9):
undefined reference to
`_D3std6format__T6getNthVAyaa19_736570617261746f7220636861726163746572SQCq6traits10isSomeCharTwTmTmTmZQDhFNaNfkmmmZw'
collect2: Fehler: ld gab 1 als Ende-Status zurück

It may be related to issue 17155, but since it was introduced in a different
release I have created a separate issue.

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