[Issue 15149] New: [2.068.2 regression] Linker error with separate compilation

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15149

          Issue ID: 15149
           Summary: [2.068.2 regression] Linker error with separate
                    compilation
           Product: D
           Version: D2
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: yazan.dabain at gmail.com

File structure:
a.d
b.d

---- a.d ----

import std.algorithm;
import b;

void main()
{
    int[] foo;
    setUnion(fun()[], foo);
}

---- b.d ----

module b;

auto fun()
{
    import std.container;
    return redBlackTree!int;
}

------------------

Compiling using `dmd -c a.d && dmd -c b.d && dmd *.o` succeeds except for
linker error:

a.o: In function
`_D3std9algorithm6setops119__T8SetUnionVAyaa5_61203c2062TS3std9container6rbtree41__T12RedBlackTreeTiVAyaa5_61203c2062Vbi0Z12RedBlackTree5RangeTAiZ8SetUnion9__xtoHashFNbNeKxS3std9algorithm6setops119__T8SetUnionVAyaa5_61203c2062TS3std9container6rbtree41__T12RedBlackTreeTiVAyaa5_61203c2062Vbi0Z12RedBlackTree5RangeTAiZ8SetUnionZm':
a.d:(.text._D3std9algorithm6setops119__T8SetUnionVAyaa5_61203c2062TS3std9container6rbtree41__T12RedBlackTreeTiVAyaa5_61203c2062Vbi0Z12RedBlackTree5RangeTAiZ8SetUnion9__xtoHashFNbNeKxS3std9algorithm6setops119__T8SetUnionVAyaa5_61203c2062TS3std9container6rbtree41__T12RedBlackTreeTiVAyaa5_61203c2062Vbi0Z12RedBlackTree5RangeTAiZ8SetUnionZm+0x18):
undefined reference to
`_D95TypeInfo_xS3std9container6rbtree41__T12RedBlackTreeTiVAyaa5_61203c2062Vbi0Z12RedBlackTree5Range6__initZ'
a.d:(.text._D3std9algorithm6setops119__T8SetUnionVAyaa5_61203c2062TS3std9container6rbtree41__T12RedBlackTreeTiVAyaa5_61203c2062Vbi0Z12RedBlackTree5RangeTAiZ8SetUnion9__xtoHashFNbNeKxS3std9algorithm6setops119__T8SetUnionVAyaa5_61203c2062TS3std9container6rbtree41__T12RedBlackTreeTiVAyaa5_61203c2062Vbi0Z12RedBlackTree5RangeTAiZ8SetUnionZm+0x1f):
undefined reference to
`_D95TypeInfo_xS3std9container6rbtree41__T12RedBlackTreeTiVAyaa5_61203c2062Vbi0Z12RedBlackTree5Range6__initZ'
collect2: error: ld returned 1 exit status
--- errorlevel 1

Linker error happens with 2.068.2 but does not happen with 2.067.1.

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