New subject: [Bug 55202] Wine fails to build with clang-11.0.1 due to recent nameless unions/structs VARIANT changes

6 Jul 2023

      https://bugs.winehq.org/show_bug.cgi?id=55202

            Bug ID: 55202
           Summary: Wine fails to build with clang-11.0.1 due to recent
                    nameless unions/structs VARIANT changes
           Product: Wine
           Version: 8.11
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Keywords: regression
          Severity: blocker
          Priority: P2
         Component: oleaut32
          Assignee: wine-bugs(a)winehq.org
          Reporter: dmitry(a)baikal.ru
   Regression SHA1: 36963b6d27abcf74b58bcf11953ebdf2b7e9767c
      Distribution: ---

Starting from

36963b6d27abcf74b58bcf11953ebdf2b7e9767c is the first bad commit
commit 36963b6d27abcf74b58bcf11953ebdf2b7e9767c
Author: Alexandre Julliard <julliard(a)winehq.org>
Date:   Tue Jul 4 12:42:53 2023 +0200

    oleaut32: Get rid of the DECIMAL access macros.

 dlls/oleaut32/variant.c |  83 +++++++------
 dlls/oleaut32/variant.h |  20 ----
 dlls/oleaut32/vartype.c | 303 +++++++++++++++++++++++-------------------------
 3 files changed, 188 insertions(+), 218 deletions(-)

Wine fails to build.

dlls/oleaut32:

clang -c -o dlls/oleaut32/x86_64-windows/usrmarshal.o
../wine.src/dlls/oleaut32/usrmarshal.c -Idlls/oleaut32 \
  -I../wine.src/dlls/oleaut32 -Iinclude -I../wine.src/include
-I../wine.src/include/msvcrt -D_UCRT \
  -D__WINESRC__ -D_OLEAUT32_ -D__WINE_PE_BUILD -Wall -target x86_64-windows
-fuse-ld=lld \
  -fno-strict-aliasing -Wdeclaration-after-statement -Wempty-body
-Wignored-qualifiers -Winit-self \
  -Wno-pragma-pack -Wstrict-prototypes -Wtype-limits -Wvla -Wwrite-strings
-Wpointer-arith \
  -Wabsolute-value -Wnonnull -mcx16 -mcmodel=small -g -O2
../wine.src/dlls/oleaut32/usrmarshal.c:402:24: error: no member named 'n1' in
'struct tagVARIANT'
    header->vt = pvar->n1.n2.vt;
                 ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:403:32: error: no member named 'n1' in
'struct tagVARIANT'
    header->wReserved1 = pvar->n1.n2.wReserved1;
                         ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:404:32: error: no member named 'n1' in
'struct tagVARIANT'
    header->wReserved2 = pvar->n1.n2.wReserved2;
                         ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:405:32: error: no member named 'n1' in
'struct tagVARIANT'
    header->wReserved3 = pvar->n1.n2.wReserved3;
                         ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:406:31: error: no member named 'n1' in
'struct tagVARIANT'
    header->switch_is = pvar->n1.n2.vt;
                        ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:421:31: error: no member named 'n1' in
'struct tagVARIANT'
            memcpy(Pos, pvar->n1.n2.n3.byref, type_size);
                        ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:435:32: error: no member named 'n1' in
'struct tagVARIANT'
            memcpy(Pos, &pvar->n1.n2.n3, type_size);
                         ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:564:27: error: no member named 'n1' in
'struct tagVARIANT'
            memcpy(&pvar->n1.n2.n3, Pos, type_size);
                    ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:568:11: error: no member named 'n1' in
'struct tagVARIANT'
    pvar->n1.n2.vt = header->vt;
    ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:569:11: error: no member named 'n1' in
'struct tagVARIANT'
    pvar->n1.n2.wReserved1 = header->wReserved1;
    ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:570:11: error: no member named 'n1' in
'struct tagVARIANT'
    pvar->n1.n2.wReserved2 = header->wReserved2;
    ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:571:11: error: no member named 'n1' in
'struct tagVARIANT'
    pvar->n1.n2.wReserved3 = header->wReserved3;
    ~~~~  ^
../wine.src/dlls/oleaut32/usrmarshal.c:624:34: error: no member named 'n1' in
'struct tagVARIANT'
  if (vt & VT_BYREF) ref = pvar->n1.n2.n3.byref;
                           ~~~~  ^
13 errors generated.

dlls/oleaut32/tests:

clang -c -o dlls/oleaut32/tests/x86_64-windows/vartest.o
../wine.src/dlls/oleaut32/tests/vartest.c -Idlls/oleaut32/tests \
  -I../wine.src/dlls/oleaut32/tests -Iinclude -I../wine.src/include
-I../wine.src/include/msvcrt \
  -D_MSVCR_VER=0 -D__WINESRC__ -D__WINE_PE_BUILD -Wall -target x86_64-windows
-fuse-ld=lld \
  -fno-strict-aliasing -Wdeclaration-after-statement -Wempty-body
-Wignored-qualifiers -Winit-self \
  -Wno-pragma-pack -Wstrict-prototypes -Wtype-limits -Wvla -Wwrite-strings
-Wpointer-arith \
  -Wabsolute-value -Wnonnull -mcx16 -mcmodel=small -g -O2
../wine.src/dlls/oleaut32/tests/vartest.c:251:5: error: declaration of
anonymous struct must be a definition
    struct __tagBRECORD *rec;
    ^
../wine.src/dlls/oleaut32/tests/vartest.c:251:29: error: type name requires a
specifier or qualifier
    struct __tagBRECORD *rec;
                            ^
../wine.src/dlls/oleaut32/tests/vartest.c:301:11: error: no member named 'rec'
in 'struct IRecordInfoImpl'
    This->rec->pvRecord = NULL;
    ~~~~  ^
../wine.src/dlls/oleaut32/tests/vartest.c:769:3: error: declaration of
anonymous struct must be a definition
  struct __tagBRECORD *rec;
  ^
../wine.src/dlls/oleaut32/tests/vartest.c:769:3: warning: declaration does not
declare anything [-Wmissing-declarations]
../wine.src/dlls/oleaut32/tests/vartest.c:894:3: error: use of undeclared
identifier 'rec'
  rec = &V_UNION(&v, brecVal);
  ^
../wine.src/dlls/oleaut32/tests/vartest.c:894:22: error: no member named
'brecVal' in 'struct tagVARIANT'
  rec = &V_UNION(&v, brecVal);
         ~~~~~~~~~~~~^~~~~~~~
...
fatal error: too many errors emitted, stopping now [-ferror-limit=]

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[Bug 55202] New: Wine fails to build with clang-11.0.1 due to recent nameless unions/structs VARIANT changes

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