On Tue, 24 Jun 2025, Pali Rohár wrote:
On Tuesday 24 June 2025 14:41:10 Martin Storsjö wrote:
On Tue, 24 Jun 2025, Martin Storsjö wrote:
On Sat, 21 Jun 2025, Pali Rohár wrote:
AM_CFLAGS contains cflags required to build the mingw-w64 CRT source code.
They are not intended to compile applications (including those used in
mingw-w64 testsuite). Setting per-target <target>_CFLAGS variable
overwrites the AM_CFLAGS. So for every testcase sets the custom
<target>_CFLAGS variable. This ensures that the testcase would not be
compiled with -D_CRTBLD or -D__MSVCRT_VERSION__=0x600 which is unsuitable
when the mingw-w64 uses the UCRT by default.
---
Should be applied on top of the:
- "crt: Improve LFS 64-bit functions"
- "crt: Improve LFS 64-bit functions (part 2)"
- crt: Fix _*stat32 and _*stat32i64 functions for 64-bit msvcrt.dll builds
---
mingw-w64-crt/Makefile.am | 73 +++++++++++++++++++--
mingw-w64-crt/testcases/complex/Makefile.am | 50 ++++++++++++++
2 files changed, 116 insertions(+), 7 deletions(-)
FWIW, this doesn't seem to be quite enough for making the existing
testcases build properly.
I set up the CI to run these tests, with these patches applied:
https://github.com/mstorsjo/mingw-w64/commits/refs/heads/ci-testsuite/
The run results are at
https://github.com/mstorsjo/mingw-w64/actions/runs/15848888686/job/44677297831,
but you won't be able to see the logs if you're not logged in to github.
The issues encountered by both the Clang and GCC builds are:
../testcases/t_ansi_io.c: In function 'main':
../testcases/t_ansi_io.c:11:10: fatal error: _mingw_print_push.h: No
such file or directory
11 | #include <_mingw_print_push.h>
(This header was removed in 2018 in
70860d945e6be713af352ee62820bccb653589c2.)
../testcases/t_trycatch.cpp:3:18: error: ISO C++17 does not allow
dynamic exception specifications
3 | void foo (int d) throw (int)
| ^~~~~
Additionally, a UCRT build hits this error:
D:/a/_temp/msys64/gcc-mingw/bin/../lib/gcc/x86_64-w64-mingw32/14.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
testcases/tstmain_sys_xxx-tstmain_sys_xxx.o: in function `main':
D:\a\mingw-w64\mingw-w64\mingw-w64-crt\build/../testcases/tstmain_sys_xxx.c:13:(.text.startup+0xc):
undefined reference to `__imp__sys_errlist'
collect2.exe: error: ld returned 1 exit status
make[2]: *** [Makefile:27717: testcases/tstmain_sys_xxx.exe] Error 1
A 32 bit msvcrt build hits these errors:
D:/a/_temp/msys64/gcc-mingw/bin/../lib/gcc/i686-w64-mingw32/14.1.0/../../../../i686-w64-mingw32/bin/ld.exe:
testcases/t_lfs-t_lfs.o: in function `main':
D:\a\mingw-w64\mingw-w64\mingw-w64-crt\build/../testcases/t_lfs.c:10:(.text.startup+0x2c):
undefined reference to `_imp__ftello64'
D:/a/_temp/msys64/gcc-mingw/bin/../lib/gcc/i686-w64-mingw32/14.1.0/../../../../i686-w64-mingw32/bin/ld.exe:
D:\a\mingw-w64\mingw-w64\mingw-w64-crt\build/../testcases/t_lfs.c:13:(.text.startup+0x7d):
undefined reference to `_imp__fseeko64'
D:/a/_temp/msys64/gcc-mingw/bin/../lib/gcc/i686-w64-mingw32/14.1.0/../../../../i686-w64-mingw32/bin/ld.exe:
D:\a\mingw-w64\mingw-w64\mingw-w64-crt\build/../testcases/t_lfs.c:21:(.text.startup+0x14e):
undefined reference to `freopen64'
D:/a/_temp/msys64/gcc-mingw/bin/../lib/gcc/i686-w64-mingw32/14.1.0/../../../../i686-w64-mingw32/bin/ld.exe:
D:\a\mingw-w64\mingw-w64\mingw-w64-crt\build/../testcases/t_lfs.c:24:(.text.startup+0x15b):
undefined reference to `tmpfile64'
D:/a/_temp/msys64/gcc-mingw/bin/../lib/gcc/i686-w64-mingw32/14.1.0/../../../../i686-w64-mingw32/bin/ld.exe:
D:\a\mingw-w64\mingw-w64\mingw-w64-crt\build/../testcases/t_lfs.c:26:(.text.startup+0x180):
undefined reference to `open64'
D:/a/_temp/msys64/gcc-mingw/bin/../lib/gcc/i686-w64-mingw32/14.1.0/../../../../i686-w64-mingw32/bin/ld.exe:
D:\a\mingw-w64\mingw-w64\mingw-w64-crt\build/../testcases/t_lfs.c:21:(.text.startup+0x1bc):
undefined reference to `freopen64'
D:/a/_temp/msys64/gcc-mingw/bin/../lib/gcc/i686-w64-mingw32/14.1.0/../../../../i686-w64-mingw32/bin/ld.exe:
D:\a\mingw-w64\mingw-w64\mingw-w64-crt\build/../testcases/t_lfs.c:24:(.text.startup+0x1c9):
undefined reference to `tmpfile64'
D:/a/_temp/msys64/gcc-mingw/bin/../lib/gcc/i686-w64-mingw32/14.1.0/../../../../i686-w64-mingw32/bin/ld.exe:
D:\a\mingw-w64\mingw-w64\mingw-w64-crt\build/../testcases/t_lfs.c:24:(.text.startup+0x1d6):
undefined reference to `tmpfile64'
collect2.exe: error: ld returned 1 exit status
make[2]: *** [Makefile:27525: testcases/t_lfs.exe] Error 1
Also, I'm hitting these errors also when targeting "ucrtbase" x86_64,
instead of "ucrt".
// Martin
Do you have "[PATCH 09/10] crt: Define LFS open64, freopen64, tmpfile64
symbols as aliases in crt-aliases.def.in"? It is part of those
dependency patch series.
Yes, it's included among the patches here. See the list of commits at
https://github.com/mstorsjo/mingw-w64/commits/refs/heads/ci-testsuite/.
// Martin
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