https://issues.dlang.org/show_bug.cgi?id=19807
Issue ID: 19807
Summary: undefined reference involving separate compilation,
`unittest`, `double`
Product: D
Version: D2
Hardware: x86_64
OS: Linux
Status: NEW
Keywords: link-failure
Severity: normal
Priority: P1
Component: dmd
Assignee: [email protected]
Reporter: [email protected]
eventcore_core.d:
----
struct Tuple()
{
double expand; /* Floating-point type seems to be significant. */
}
class PosixEventDriver()
{
unittest
{
Tuple!()[] tupList = [];
}
}
PosixEventDriver!() eventDriver;
----
main.d:
----
import eventcore_core;
void main() {}
----
Compile and (try to) link:
----
dmd -c eventcore_core.d
dmd -c -unittest main.d
dmd main.o eventcore_core.o
----
Output:
----
/usr/bin/ld:
main.o:(.data._D38TypeInfo_S14eventcore_core__T5TupleZQh6__initZ+0x28):
undefined reference to `_D14eventcore_core__T5TupleZQh6__initZ'
collect2: error: ld returned 1 exit status
Error: linker exited with status 1
----
Linking should succeed.
Encountered during Phobos development:
https://github.com/dlang/phobos/pull/6951#issuecomment-482470928
--
