Rtools gcc type errors, old data.table fwrite

[tdhock]

I am trying to run a performance test,

tinfo <- atime::atime_pkg_test_info("../..")
names(tinfo$test.call)
tname <- "DT[by] fixed in #4558"
tcall <- tinfo$test.call[[tname]]
tres <- eval(tcall)

it includes comparison with old data.table versions, but Rtools 4.5 gcc on windows 11 gives me type errors.
I guess this is specific to Rtools gcc, because performance tests are working on Ubuntu GHA.

gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -O2 -Wall -std=gnu2x  -mfpmath=sse -msse2 -mstackrealign   -c fwrite.c -o fwrite.o
fwrite.c:60:6: error: conflicting types for 'writeBool8'; have 'void(int8_t *, int64_t,  char **)' {aka 'void(signed char *, long long int,  char **)'}
   60 | void writeBool8(int8_t *col, int64_t row, char **pch)
      |      ^~~~~~~~~~
In file included from fwrite.c:25:
fwrite.h:14:6: note: previous declaration of 'writeBool8' with type 'void(void)'
   14 | void writeBool8();
      |      ^~~~~~~~~~
fwrite.c:68:6: error: conflicting types for 'writeBool32'; have 'void(int32_t *, int64_t,  char **)' {aka 'void(int *, long long int,  char **)'}
   68 | void writeBool32(int32_t *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~
fwrite.h:15:6: note: previous declaration of 'writeBool32' with type 'void(void)'
   15 | void writeBool32();
      |      ^~~~~~~~~~~
fwrite.c:80:6: error: conflicting types for 'writeBool32AsString'; have 'void(int32_t *, int64_t,  char **)' {aka 'void(int *, long long int,  char **)'}
   80 | void writeBool32AsString(int32_t *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~~~~~~~~
fwrite.h:16:6: note: previous declaration of 'writeBool32AsString' with type 'void(void)'
   16 | void writeBool32AsString();
      |      ^~~~~~~~~~~~~~~~~~~
fwrite.c:106:6: error: conflicting types for 'writeInt32'; have 'void(int32_t *, int64_t,  char **)' {aka 'void(int *, long long int,  char **)'}
  106 | void writeInt32(int32_t *col, int64_t row, char **pch)
      |      ^~~~~~~~~~
fwrite.h:17:6: note: previous declaration of 'writeInt32' with type 'void(void)'
   17 | void writeInt32();
      |      ^~~~~~~~~~
fwrite.c:122:6: error: conflicting types for 'writeInt64'; have 'void(int64_t *, int64_t,  char **)' {aka 'void(long long int *, long long int,  char **)'}
  122 | void writeInt64(int64_t *col, int64_t row, char **pch)
      |      ^~~~~~~~~~
fwrite.h:18:6: note: previous declaration of 'writeInt64' with type 'void(void)'
   18 | void writeInt64();
      |      ^~~~~~~~~~
fwrite.c:177:6: error: conflicting types for 'writeFloat64'; have 'void(double *, int64_t,  char **)' {aka 'void(double *, long long int,  char **)'}
  177 | void writeFloat64(double *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~
fwrite.h:19:6: note: previous declaration of 'writeFloat64' with type 'void(void)'
   19 | void writeFloat64();
      |      ^~~~~~~~~~~~
fwrite.c:301:6: error: conflicting types for 'writeComplex'; have 'void(Rcomplex *, int64_t,  char **)' {aka 'void(Rcomplex *, long long int,  char **)'}
  301 | void writeComplex(Rcomplex *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~
fwrite.h:20:6: note: previous declaration of 'writeComplex' with type 'void(void)'
   20 | void writeComplex();
      |      ^~~~~~~~~~~~
fwrite.c:340:6: error: conflicting types for 'writeITime'; have 'void(int32_t *, int64_t,  char **)' {aka 'void(int *, long long int,  char **)'}
  340 | void writeITime(int32_t *col, int64_t row, char **pch) {
      |      ^~~~~~~~~~
fwrite.h:21:6: note: previous declaration of 'writeITime' with type 'void(void)'
   21 | void writeITime();
      |      ^~~~~~~~~~
fwrite.c:394:6: error: conflicting types for 'writeDateInt32'; have 'void(int32_t *, int64_t,  char **)' {aka 'void(int *, long long int,  char **)'}
  394 | void writeDateInt32(int32_t *col, int64_t row, char **pch) {
      |      ^~~~~~~~~~~~~~
fwrite.h:22:6: note: previous declaration of 'writeDateInt32' with type 'void(void)'
   22 | void writeDateInt32();
      |      ^~~~~~~~~~~~~~
fwrite.c:398:6: error: conflicting types for 'writeDateFloat64'; have 'void(double *, int64_t,  char **)' {aka 'void(double *, long long int,  char **)'}
  398 | void writeDateFloat64(double *col, int64_t row, char **pch) {
      |      ^~~~~~~~~~~~~~~~
fwrite.h:23:6: note: previous declaration of 'writeDateFloat64' with type 'void(void)'
   23 | void writeDateFloat64();
      |      ^~~~~~~~~~~~~~~~
fwrite.c:402:6: error: conflicting types for 'writePOSIXct'; have 'void(double *, int64_t,  char **)' {aka 'void(double *, long long int,  char **)'}
  402 | void writePOSIXct(double *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~
fwrite.h:24:6: note: previous declaration of 'writePOSIXct' with type 'void(void)'
   24 | void writePOSIXct();
      |      ^~~~~~~~~~~~
fwrite.c:462:6: error: conflicting types for 'writeNanotime'; have 'void(int64_t *, int64_t,  char **)' {aka 'void(long long int *, long long int,  char **)'}
  462 | void writeNanotime(int64_t *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~~
fwrite.h:25:6: note: previous declaration of 'writeNanotime' with type 'void(void)'
   25 | void writeNanotime();
      |      ^~~~~~~~~~~~~
fwrite.c:545:6: error: conflicting types for 'writeString'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  545 | void writeString(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~
fwrite.h:26:6: note: previous declaration of 'writeString' with type 'void(void)'
   26 | void writeString();
      |      ^~~~~~~~~~~
fwrite.c:550:6: error: conflicting types for 'writeCategString'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  550 | void writeCategString(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~~~~~
fwrite.h:27:6: note: previous declaration of 'writeCategString' with type 'void(void)'
   27 | void writeCategString();
      |      ^~~~~~~~~~~~~~~~
In file included from fwrite.h:6:
fwrite.c: In function 'fwriteMain':
fwrite.c:631:15: warning: format '%d' expects argument of type 'int', but argument 3 has type 'const void *' [-Wformat=]
  631 |     DTPRINT(_("\nargs.doRowNames=%d args.rowNames=%d doQuote=%d args.nrow=%"PRId64" args.ncol=%d eolLen=%d\n"),
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
po.h:3:42: note: in definition of macro '_'
    3 | #define _(String) dgettext("data.table", String)
      |                                          ^~~~~~
fwrite.c:631:52: note: format string is defined here
  631 |     DTPRINT(_("\nargs.doRowNames=%d args.rowNames=%d doQuote=%d args.nrow=%"PRId64" args.ncol=%d eolLen=%d\n"),
      |                                                   ~^
      |                                                    |
      |                                                    int
      |                                                   %p
fwrite.c:713:23: warning: format '%d' expects argument of type 'int', but argument 2 has type 'size_t' {aka 'long long unsigned int'} [-Wformat=]
  713 |     if (!buff) STOP(_("Unable to allocate %d MiB for header: %s"), headerLen / 1024 / 1024, strerror(errno));
      |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
po.h:3:42: note: in definition of macro '_'
    3 | #define _(String) dgettext("data.table", String)
      |                                          ^~~~~~
fwrite.c:713:44: note: format string is defined here
  713 |     if (!buff) STOP(_("Unable to allocate %d MiB for header: %s"), headerLen / 1024 / 1024, strerror(errno));
      |                                           ~^
      |                                            |
      |                                            int
      |                                           %lld
fwrite.c:748:18: warning: format '%d' expects argument of type 'int', but argument 2 has type 'size_t' {aka 'long long unsigned int'} [-Wformat=]
  748 |           STOP(_("Unable to allocate %d MiB for zbuffer: %s"), zbuffSize / 1024 / 1024, strerror(errno));  // # nocov
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
po.h:3:42: note: in definition of macro '_'
    3 | #define _(String) dgettext("data.table", String)
      |                                          ^~~~~~
fwrite.c:748:39: note: format string is defined here
  748 |           STOP(_("Unable to allocate %d MiB for zbuffer: %s"), zbuffSize / 1024 / 1024, strerror(errno));  // # nocov
      |                                      ~^
      |                                       |
      |                                       int
      |                                      %lld
fwrite.c:812:31: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long unsigned int' [-Wformat=]
  812 |     STOP("Unable to allocate %d MB * %d thread buffers; '%d: %s'. Please read ?fwrite for nThread, buffMB and verbose options.",
      |                              ~^
      |                               |
      |                               int
      |                              %lld
  813 |          (size_t)buffSize/(1024^2), nth, errno, strerror(errno));
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~
      |                          |
      |                          long long unsigned int
fwrite.c:822:33: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long unsigned int' [-Wformat=]
  822 |       STOP("Unable to allocate %d MB * %d thread compressed buffers; '%d: %s'. Please read ?fwrite for nThread, buffMB and verbose options.",
      |                                ~^
      |                                 |
      |                                 int
      |                                %lld
  823 |          (size_t)zbuffSize/(1024^2), nth, errno, strerror(errno));
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                           |
      |                           long long unsigned int
make: *** [c:/PROGRA~1/R/R-45~1.2/etc/x64/Makeconf:289: fwrite.o] Error 1
ERROR: compilation failed for package 'data.table.f750448a2efcd258b3aba57136ee6a95ce56b302'

[tdhock]

error says

fwrite.c:60:6: error: conflicting types for 'writeBool8'; have 'void(int8_t *, int64_t,  char **)' {aka 'void(signed char *, long long int,  char **)'}
   60 | void writeBool8(int8_t *col, int64_t row, char **pch)

current master has

void writeBool8(const void *col, int64_t row, char **pch)

[tdhock]

replacing types with const void * is not sufficient to fix,

gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -O2 -Wall -std=gnu2x  -mfpmath=sse -msse2 -mstackrealign   -c fwrite.c -o fwrite.o
fwrite.c:60:6: error: conflicting types for 'writeBool8'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
   60 | void writeBool8(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~
In file included from fwrite.c:25:
fwrite.h:14:6: note: previous declaration of 'writeBool8' with type 'void(void)'
   14 | void writeBool8();
      |      ^~~~~~~~~~
fwrite.c: In function 'writeBool8':
fwrite.c:62:17: warning: dereferencing 'void *' pointer
   62 |   int8_t x = col[row];
      |                 ^
fwrite.c:62:14: error: void value not ignored as it ought to be
   62 |   int8_t x = col[row];
      |              ^~~
fwrite.c: At top level:
fwrite.c:68:6: error: conflicting types for 'writeBool32'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
   68 | void writeBool32(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~
fwrite.h:15:6: note: previous declaration of 'writeBool32' with type 'void(void)'
   15 | void writeBool32();
      |      ^~~~~~~~~~~
fwrite.c: In function 'writeBool32':
fwrite.c:70:18: warning: dereferencing 'void *' pointer
   70 |   int32_t x = col[row];
      |                  ^
fwrite.c:70:15: error: void value not ignored as it ought to be
   70 |   int32_t x = col[row];
      |               ^~~
fwrite.c: At top level:
fwrite.c:80:6: error: conflicting types for 'writeBool32AsString'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
   80 | void writeBool32AsString(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~~~~~~~~
fwrite.h:16:6: note: previous declaration of 'writeBool32AsString' with type 'void(void)'
   16 | void writeBool32AsString();
      |      ^~~~~~~~~~~~~~~~~~~
fwrite.c: In function 'writeBool32AsString':
fwrite.c:82:18: warning: dereferencing 'void *' pointer
   82 |   int32_t x = col[row];
      |                  ^
fwrite.c:82:15: error: void value not ignored as it ought to be
   82 |   int32_t x = col[row];
      |               ^~~
fwrite.c: At top level:
fwrite.c:106:6: error: conflicting types for 'writeInt32'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  106 | void writeInt32(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~
fwrite.h:17:6: note: previous declaration of 'writeInt32' with type 'void(void)'
   17 | void writeInt32();
      |      ^~~~~~~~~~
fwrite.c: In function 'writeInt32':
fwrite.c:109:18: warning: dereferencing 'void *' pointer
  109 |   int32_t x = col[row];
      |                  ^
fwrite.c:109:15: error: void value not ignored as it ought to be
  109 |   int32_t x = col[row];
      |               ^~~
fwrite.c: At top level:
fwrite.c:122:6: error: conflicting types for 'writeInt64'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  122 | void writeInt64(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~
fwrite.h:18:6: note: previous declaration of 'writeInt64' with type 'void(void)'
   18 | void writeInt64();
      |      ^~~~~~~~~~
fwrite.c: In function 'writeInt64':
fwrite.c:125:18: warning: dereferencing 'void *' pointer
  125 |   int64_t x = col[row];
      |                  ^
fwrite.c:125:15: error: void value not ignored as it ought to be
  125 |   int64_t x = col[row];
      |               ^~~
fwrite.c: At top level:
fwrite.c:177:6: error: conflicting types for 'writeFloat64'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  177 | void writeFloat64(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~
fwrite.h:19:6: note: previous declaration of 'writeFloat64' with type 'void(void)'
   19 | void writeFloat64();
      |      ^~~~~~~~~~~~
fwrite.c: In function 'writeFloat64':
fwrite.c:187:17: warning: dereferencing 'void *' pointer
  187 |   double x = col[row];
      |                 ^
fwrite.c:187:14: error: void value not ignored as it ought to be
  187 |   double x = col[row];
      |              ^~~
fwrite.c: At top level:
fwrite.c:301:6: error: conflicting types for 'writeComplex'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  301 | void writeComplex(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~
fwrite.h:20:6: note: previous declaration of 'writeComplex' with type 'void(void)'
   20 | void writeComplex();
      |      ^~~~~~~~~~~~
fwrite.c: In function 'writeComplex':
fwrite.c:303:19: warning: dereferencing 'void *' pointer
  303 |   Rcomplex x = col[row];
      |                   ^
fwrite.c:303:16: error: invalid initializer
  303 |   Rcomplex x = col[row];
      |                ^~~
fwrite.c: At top level:
fwrite.c:340:6: error: conflicting types for 'writeITime'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  340 | void writeITime(const void *col, int64_t row, char **pch) {
      |      ^~~~~~~~~~
fwrite.h:21:6: note: previous declaration of 'writeITime' with type 'void(void)'
   21 | void writeITime();
      |      ^~~~~~~~~~
fwrite.c: In function 'writeITime':
fwrite.c:341:17: warning: dereferencing 'void *' pointer
  341 |   write_time(col[row], pch);
      |                 ^
fwrite.c:341:17: error: invalid use of void expression
  341 |   write_time(col[row], pch);
      |              ~~~^~~~~
fwrite.c: At top level:
fwrite.c:394:6: error: conflicting types for 'writeDateInt32'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  394 | void writeDateInt32(const void *col, int64_t row, char **pch) {
      |      ^~~~~~~~~~~~~~
fwrite.h:22:6: note: previous declaration of 'writeDateInt32' with type 'void(void)'
   22 | void writeDateInt32();
      |      ^~~~~~~~~~~~~~
fwrite.c: In function 'writeDateInt32':
fwrite.c:395:17: warning: dereferencing 'void *' pointer
  395 |   write_date(col[row], pch);
      |                 ^
fwrite.c:395:17: error: invalid use of void expression
  395 |   write_date(col[row], pch);
      |              ~~~^~~~~
fwrite.c: At top level:
fwrite.c:398:6: error: conflicting types for 'writeDateFloat64'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  398 | void writeDateFloat64(const void *col, int64_t row, char **pch) {
      |      ^~~~~~~~~~~~~~~~
fwrite.h:23:6: note: previous declaration of 'writeDateFloat64' with type 'void(void)'
   23 | void writeDateFloat64();
      |      ^~~~~~~~~~~~~~~~
In file included from fwrite.c:7:
fwrite.c: In function 'writeDateFloat64':
fwrite.c:399:26: warning: dereferencing 'void *' pointer
  399 |   write_date(isfinite(col[row]) ? (int)(col[row]) : INT32_MIN, pch);
      |                          ^
fwrite.c:399:26: error: invalid use of void expression
  399 |   write_date(isfinite(col[row]) ? (int)(col[row]) : INT32_MIN, pch);
      |                       ~~~^~~~~
fwrite.c:399:26: warning: dereferencing 'void *' pointer
  399 |   write_date(isfinite(col[row]) ? (int)(col[row]) : INT32_MIN, pch);
      |                          ^
fwrite.c:399:26: error: invalid use of void expression
  399 |   write_date(isfinite(col[row]) ? (int)(col[row]) : INT32_MIN, pch);
      |                       ~~~^~~~~
fwrite.c:399:26: warning: dereferencing 'void *' pointer
  399 |   write_date(isfinite(col[row]) ? (int)(col[row]) : INT32_MIN, pch);
      |                          ^
fwrite.c:399:26: error: invalid use of void expression
  399 |   write_date(isfinite(col[row]) ? (int)(col[row]) : INT32_MIN, pch);
      |                       ~~~^~~~~
fwrite.c:399:44: warning: dereferencing 'void *' pointer
  399 |   write_date(isfinite(col[row]) ? (int)(col[row]) : INT32_MIN, pch);
      |                                            ^
fwrite.c:399:35: error: invalid use of void expression
  399 |   write_date(isfinite(col[row]) ? (int)(col[row]) : INT32_MIN, pch);
      |                                   ^
fwrite.c: At top level:
fwrite.c:402:6: error: conflicting types for 'writePOSIXct'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  402 | void writePOSIXct(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~
fwrite.h:24:6: note: previous declaration of 'writePOSIXct' with type 'void(void)'
   24 | void writePOSIXct();
      |      ^~~~~~~~~~~~
fwrite.c: In function 'writePOSIXct':
fwrite.c:411:17: warning: dereferencing 'void *' pointer
  411 |   double x = col[row];
      |                 ^
fwrite.c:411:14: error: void value not ignored as it ought to be
  411 |   double x = col[row];
      |              ^~~
fwrite.c: At top level:
fwrite.c:462:6: error: conflicting types for 'writeNanotime'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  462 | void writeNanotime(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~~
fwrite.h:25:6: note: previous declaration of 'writeNanotime' with type 'void(void)'
   25 | void writeNanotime();
      |      ^~~~~~~~~~~~~
fwrite.c: In function 'writeNanotime':
fwrite.c:464:18: warning: dereferencing 'void *' pointer
  464 |   int64_t x = col[row];
      |                  ^
fwrite.c:464:15: error: void value not ignored as it ought to be
  464 |   int64_t x = col[row];
      |               ^~~
fwrite.c: At top level:
fwrite.c:545:6: error: conflicting types for 'writeString'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  545 | void writeString(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~
fwrite.h:26:6: note: previous declaration of 'writeString' with type 'void(void)'
   26 | void writeString();
      |      ^~~~~~~~~~~
fwrite.c: In function 'writeString':
fwrite.c:547:26: error: expected expression before 'const'
  547 |   write_string(getString(const void *col, row), pch);
      |                          ^~~~~
fwrite.c:547:16: error: too few arguments to function 'getString'
  547 |   write_string(getString(const void *col, row), pch);
      |                ^~~~~~~~~
fwrite.c:44:20: note: declared here
   44 | extern const char *getString(void *, int64_t);
      |                    ^~~~~~~~~
fwrite.c: At top level:
fwrite.c:550:6: error: conflicting types for 'writeCategString'; have 'void(const void *, int64_t,  char **)' {aka 'void(const void *, long long int,  char **)'}
  550 | void writeCategString(const void *col, int64_t row, char **pch)
      |      ^~~~~~~~~~~~~~~~
fwrite.h:27:6: note: previous declaration of 'writeCategString' with type 'void(void)'
   27 | void writeCategString();
      |      ^~~~~~~~~~~~~~~~
fwrite.c: In function 'writeCategString':
fwrite.c:552:31: error: expected expression before 'const'
  552 |   write_string(getCategString(const void *col, row), pch);
      |                               ^~~~~
fwrite.c:552:16: error: too few arguments to function 'getCategString'
  552 |   write_string(getCategString(const void *col, row), pch);
      |                ^~~~~~~~~~~~~~
fwrite.c:49:20: note: declared here
   49 | extern const char *getCategString(void *, int64_t);
      |                    ^~~~~~~~~~~~~~
In file included from fwrite.h:6:
fwrite.c: In function 'fwriteMain':
fwrite.c:631:15: warning: format '%d' expects argument of type 'int', but argument 3 has type 'void *' [-Wformat=]
  631 |     DTPRINT(_("\nargs.doRowNames=%d args.rowNames=%d doQuote=%d args.nrow=%"PRId64" args.ncol=%d eolLen=%d\n"),
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
po.h:3:42: note: in definition of macro '_'
    3 | #define _(String) dgettext("data.table", String)
      |                                          ^~~~~~
fwrite.c:631:52: note: format string is defined here
  631 |     DTPRINT(_("\nargs.doRowNames=%d args.rowNames=%d doQuote=%d args.nrow=%"PRId64" args.ncol=%d eolLen=%d\n"),
      |                                                   ~^
      |                                                    |
      |                                                    int
      |                                                   %p
fwrite.c:713:23: warning: format '%d' expects argument of type 'int', but argument 2 has type 'size_t' {aka 'long long unsigned int'} [-Wformat=]
  713 |     if (!buff) STOP(_("Unable to allocate %d MiB for header: %s"), headerLen / 1024 / 1024, strerror(errno));
      |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
po.h:3:42: note: in definition of macro '_'
    3 | #define _(String) dgettext("data.table", String)
      |                                          ^~~~~~
fwrite.c:713:44: note: format string is defined here
  713 |     if (!buff) STOP(_("Unable to allocate %d MiB for header: %s"), headerLen / 1024 / 1024, strerror(errno));
      |                                           ~^
      |                                            |
      |                                            int
      |                                           %lld
fwrite.c:748:18: warning: format '%d' expects argument of type 'int', but argument 2 has type 'size_t' {aka 'long long unsigned int'} [-Wformat=]
  748 |           STOP(_("Unable to allocate %d MiB for zbuffer: %s"), zbuffSize / 1024 / 1024, strerror(errno));  // # nocov
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
po.h:3:42: note: in definition of macro '_'
    3 | #define _(String) dgettext("data.table", String)
      |                                          ^~~~~~
fwrite.c:748:39: note: format string is defined here
  748 |           STOP(_("Unable to allocate %d MiB for zbuffer: %s"), zbuffSize / 1024 / 1024, strerror(errno));  // # nocov
      |                                      ~^
      |                                       |
      |                                       int
      |                                      %lld
fwrite.c:812:31: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long unsigned int' [-Wformat=]
  812 |     STOP("Unable to allocate %d MB * %d thread buffers; '%d: %s'. Please read ?fwrite for nThread, buffMB and verbose options.",
      |                              ~^
      |                               |
      |                               int
      |                              %lld
  813 |          (size_t)buffSize/(1024^2), nth, errno, strerror(errno));
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~
      |                          |
      |                          long long unsigned int
fwrite.c:822:33: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long unsigned int' [-Wformat=]
  822 |       STOP("Unable to allocate %d MB * %d thread compressed buffers; '%d: %s'. Please read ?fwrite for nThread, buffMB and verbose options.",
      |                                ~^
      |                                 |
      |                                 int
      |                                %lld
  823 |          (size_t)zbuffSize/(1024^2), nth, errno, strerror(errno));
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                           |
      |                           long long unsigned int
make: *** [c:/PROGRA~1/R/R-45~1.2/etc/x64/Makeconf:289: fwrite.o] Error 1
ERROR: compilation failed for package 'data.table.7a9eaf62ede487625200981018d8692be8c6f134'

[aitap]

void writeBool8(); used to be an acceptable declaration for void writeBool8(int8_t *col, int64_t row, char **pch), without a proper prototype, a remnant of pre-ANSI days. For a long time this caused a -Wstrict-prototypes warning, but the C23 standard (enabled by the -std=gnu2x flag) finally outlawed this, interpreting void writeBool8(); as void writeBool8(void);, which conflicts with the actual type of the function. WRE says that it's possible to set SystemRequirements: USE_C17 (or, say, USE_C99) to choose a less strict C standard, but I can't test this advice right now.

[tdhock]

duplicate of #7015 which was on Ubuntu.
fix was adding CFLAGS = -std=gnu99 to ~/.R/Makevars.

[tdhock]

that fix also works on windows

gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c fwrite.c -o fwrite.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c fwriteR.c -o fwriteR.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c gsumm.c -o gsumm.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c ijoin.c -o ijoin.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c init.c -o init.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c inrange.c -o inrange.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c nafill.c -o nafill.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c nqrecreateindices.c -o nqrecreateindices.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c openmp-utils.c -o openmp-utils.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c quickselect.c -o quickselect.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c rbindlist.c -o rbindlist.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c reorder.c -o reorder.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c shift.c -o shift.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c subset.c -o subset.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c transpose.c -o transpose.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c types.c -o types.o
In file included from data.table.h:1,
                 from types.c:2:
dt_stdio.h:25:11: warning: "__USE_MINGW_ANSI_STDIO" redefined
   25 |   #define __USE_MINGW_ANSI_STDIO 1
      |           ^~~~~~~~~~~~~~~~~~~~~~
In file included from C:/rtools45/x86_64-w64-mingw32.static.posix/include/corecrt.h:10,
                 from C:/rtools45/x86_64-w64-mingw32.static.posix/include/crtdefs.h:10,
                 from C:/rtools45/x86_64-w64-mingw32.static.posix/include/stddef.h:7,
                 from C:/rtools45/x86_64-w64-mingw32.static.posix/lib/gcc/x86_64-w64-mingw32.static.posix/14.2.0/include/stddef.h:1,
                 from c:/PROGRA~1/R/R-45~1.2/include/R_ext/Memory.h:36,
                 from c:/PROGRA~1/R/R-45~1.2/include/Rdefines.h:37,
                 from types.c:1:
C:/rtools45/x86_64-w64-mingw32.static.posix/include/_mingw.h:434:9: note: this is the location of the previous definition
  434 | #define __USE_MINGW_ANSI_STDIO 0      /* was not defined so it should be 0 */
      |         ^~~~~~~~~~~~~~~~~~~~~~
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c uniqlist.c -o uniqlist.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c utils.c -o utils.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c vecseq.c -o vecseq.o
gcc  -I"c:/PROGRA~1/R/R-45~1.2/include" -DNDEBUG     -I"C:/rtools45/x86_64-w64-mingw32.static.posix/include"   -fopenmp   -std=gnu99 -c wrappers.c -o wrappers.o
gcc -shared -s -static-libgcc -o data.table.7a9eaf62ede487625200981018d8692be8c6f134.dll tmp.def assign.o between.o bmerge.o chmatch.o cj.o coalesce.o dogroups.o fastmean.o fcast.o fifelse.o fmelt.o forder.o frank.o fread.o freadR.o froll.o frollR.o frolladaptive.o fsort.o fwrite.o fwriteR.o gsumm.o ijoin.o init.o inrange.o nafill.o nqrecreateindices.o openmp-utils.o quickselect.o rbindlist.o reorder.o shift.o subset.o transpose.o types.o uniqlist.o utils.o vecseq.o wrappers.o -fopenmp -lz -LC:/rtools45/x86_64-w64-mingw32.static.posix/lib/x64 -LC:/rtools45/x86_64-w64-mingw32.static.posix/lib -Lc:/PROGRA~1/R/R-45~1.2/bin/x64 -lR
mv data.table.7a9eaf62ede487625200981018d8692be8c6f134.dll data_table_7a9eaf62ede487625200981018d8692be8c6f134.dll
installing to C:/Users/hoct2726/AppData/Local/R/win-library/4.5/00LOCK-data.table.7a9eaf62ede487625200981018d8692be8c6f134/00new/data.table.7a9eaf62ede487625200981018d8692be8c6f134/libs/x64
** R
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded from temporary location
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (data.table.7a9eaf62ede487625200981018d8692be8c6f134)

but I will keep this issue open, maybe we can change pkg.edit.fun in #7690 to fix this?