mingw64 compiling failure #8825
Description
I use mingw64 from msys2 and occurs several warnings and 1 fatal.
a warning is related with macro redefinition in gmt_io.h. In my case, fseek and ftell are defined twice.
#ifdef HAVE_FSEEKO
# define fseek fseeko
#endif
#ifdef HAVE_FTELLO
# define ftell ftello
#endif
/* Windows 64-bit file access */
#if defined HAVE__FSEEKI64 && defined HAVE__FTELLI64
# define fseek _fseeki64
# define ftell _ftelli64
# ifndef SIZEOF_OFF_T
typedef __int64 off_t;
# else
# define off_t __int64
# endif /* SIZEOF_OFF_T */
#elif !defined SIZEOF_OFF_T /* HAVE__FSEEKI64 && HAVE__FTELLI64 */
typedef long off_t;
#endif /* HAVE__FSEEKI64 && HAVE__FTELLI64 */1 fatal is in gmt_plot.c
C:/software/msys2/home/13967/opt/src_gmt/src/gmt_plot.c: In function 'gmtlib_read_ps':
C:/software/msys2/home/13967/opt/src_gmt/src/gmt_plot.c:10717:33: error: passing argument 2 of 'fstat' from incompatible pointer type [-Wincompatible-pointer-types]
10717 | if (fstat (*fd, &buf)) {
| ^~~~
| |
| struct _stat64 *
In file included from C:/software/msys2/home/13967/opt/src_gmt/src/gmt_notposix.h:83,
from C:/software/msys2/home/13967/opt/src_gmt/src/gmt_dev.h:139:
C:/software/msys2/mingw64/include/sys/stat.h:166:43: note: expected 'struct stat *' but argument is of type 'struct _stat64 *'
166 | int __cdecl fstat(int _Desc, struct stat *_Stat) __MINGW_ASM_CALL(_fstat64i32);
| ~~~~~~~~~~~~~^~~~~
ninja: build stopped: subcommand failed.i change fstat to _fstat64 and _stat64 to stat and all compile passed
$ ./gmt.exe
GMT - The Generic Mapping Tools, Version 6.7.0_bf5ba5b-dirty_2025.11.03 [64-bit] [MP] [16 cores]
(c) 1991-2025 The GMT Team (https://www.generic-mapping-tools.org/team.html).
Supported in part by the US National Science Foundation (http://www.nsf.gov/)
and volunteers from around the world.
GMT is distributed under the GNU LGPL License (http://www.gnu.org/licenses/lgpl.html).
Dependencies: netCDF, GDAL, PCRE, FFTW, LAPACK, ZLIB, Ghostscript, GraphicsMagick, FFmpeg.
usage: gmt [options]
gmt <module name> [<module-options>]
options:
--help List descriptions of available GMT modules.
--new-script[=L] Write GMT modern mode script template to standard output.
Optionally specify bash|csh|batch [Default is current shell].
--new-glue=name Write C code for external supplements to glue them to GMT.
--show-bindir Show directory with GMT executables.
--show-citation Show the most recent citation for GMT.
--show-classic Show all classic module names.
--show-classic-core Show all classic module names (core only).
--show-cores Show number of available cores.
--show-datadir Show directory/ies with user data.
--show-dataserver Show URL of the remote GMT data server.
--show-date Show GMT binary building date
--show-dcw Show the DCW data version used.
--show-doi Show the DOI for the current release.
--show-gshhg Show the GSHHG data version used.
--show-library Show path of the shared GMT library.
--show-modules Show all modern module names.
--show-modules-core Show all modern module names (core only).
--show-plugindir Show directory for plug-ins.
--show-sharedir Show directory for shared GMT resources.
--show-userdir Show full path of user's ~/.gmt dir
--version Print GMT version number.
if <module-options> is '=' we call exit (0) if module exist and non-zero otherwise.My env is as down below.
* GMT Version: : 6.7.0_bf5ba5b-dirty_2025.11.03
* System: : Windows (10.0.26100)
*
* Options:
* Found GSHHG database : C:/software/msys2/home/13967/opt/src_gmt/share/gshhg-gmt (2.3.7)
* Found DCW-GMT database : C:/software/msys2/home/13967/opt/src_gmt/share/dcw-gmt (2.2.0)
* Found GMT data server : oceania
* NetCDF library : C:/software/msys2/mingw64/lib/libnetcdf.dll.a
* NetCDF include dir : C:/software/msys2/mingw64/include
* Curl library : CURL::libcurl
* Curl include dir :
* GDAL library : C:/software/msys2/mingw64/lib/libgdal.dll.a
* GDAL include dir : C:/software/msys2/mingw64/include
* GEOS library : C:/software/msys2/mingw64/lib/libgeos_c.dll.a
* GEOS include dir : C:/software/msys2/mingw64/include
* FFTW library : C:/software/msys2/mingw64/lib/libfftw3f.dll.a
* FFTW threads library : C:/software/msys2/mingw64/lib/libfftw3f_threads.dll.a
* FFTW include dir : C:/software/msys2/mingw64/include
* Accelerate Framework :
* Regex support : PCRE (C:/software/msys2/mingw64/lib/libpcre.dll.a)
* ZLIB library : C:/software/msys2/mingw64/lib/libz.dll.a
* ZLIB include dir : C:/software/msys2/mingw64/include
* LAPACK library : yes
* BLAS library : yes
* License restriction : no
* Triangulation method : Shewchuk
* OpenMP support : enabled
* GLIB GTHREAD support : enabled
* Build generator : Ninja
* Build GMT core : always [gmt.dll]
* Build PSL library : always [postscriptlight.dll]
* Build GMT supplements : yes [supplements.dll]
* Build GMT for developers : yes
* Build proto supplements : none
* Build module links : no
* Found Ghostscript (gs) : yes
* Found GraphicsMagick (gm) : yes (1.3.45)
* Found ffmpeg : no
* Found open : yes
* Found ogr2ogr : yes (3.11.4)
* Found gdal_translate : yes (3.11.4)
*
* Locations:
* Installing GMT in : C:/software/msys2/home/13967/opt/gmt
* GMT_DATADIR : C:/software/msys2/home/13967/opt/gmt/share
* GMT_DOCDIR : C:/software/msys2/home/13967/opt/gmt/share/doc
* GMT_MANDIR : C:/software/msys2/home/13967/opt/gmt/share/man
-- Configuring done (64.4s)
-- Generating done (0.2s)