On Sat, 19 Oct 2024, Pali Rohár wrote:
libmsvcrtd.a is import library for msvcrtd.dll and therefore it cannot
include libmsvcrt_extra.a library which object files are compiled with
-D__LIBMSVCRT_OS__ which instruct code to access msvcrt.dll library.
Add a new static library libmsvcrtd_extra.a which is compiled from subset
of libmsvcrt_extra.a sources which does not depend on msvcrt.dll and
compile them without -D__LIBMSVCRT_OS__ option. Then use this new static
library libmsvcrtd_extra.a for building the final libmsvcrtd.a import library.
---
mingw-w64-crt/Makefile.am | 43 +++++++++++++++++++++++++++++++--
mingw-w64-crt/lib32/msvcrtd.mri | 2 +-
2 files changed, 42 insertions(+), 3 deletions(-)
Thanks - this version does compile correctly.
I'd like to point out, that this patch does add a bit of maintainance
burden - there's yet another new src_<library> variable with a lot of
source files, that needs to be taken into account whenever we move
functions around between the libraries. The rule for exactly which files
from src_msvcrt that are included and which ones aren't, isn't very
obvious either. (Include all files except the ones that trigger #error?)
When judging whether we should add these debug variants of CRTs, one
factor was/is how much extra maintainance burden they add; this new
information makes me wonder if we really do need an import library for
this DLL at all?
// Martin
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