Problems building under windows 10 with 64bit Cygwin

[servodude]

Hi

I am trying to kick of my first build in windows and getting complaints using Cygwin64.

I can build the initial testProject described in your wiki if I use the cygwin toolchain that ships with Studio 0.15.

However if I try and build using Cygwin64 I get the following error at linking.

(I modified the Makefile to find the 64bit versions of gcc (i686-w64... vs  i686-pc- ) )

C:\dev\uGFX\test\testProject>make
.
C Compiler Options....
i686-w64-mingw32-gcc -c -ggdb -O0 -m32 -fomit-frame-pointer -Wall -Wextra -Wstrict-prototypes -fverbose-asm -ffunction-sections -fdata-sections -fno-common -flto -MMD -MP -MF .build/dep/fakefile.o.d -I. -I../uGFX -I../uGFX/3rdparty/tinygl-0.4-ugfx/include -I../uGFX/drivers/multiple/Win32 -I../uGFX/drivers/gaudio/Win32 -I../uGFX/demos/modules/gdisp/basics -DGFX_USE_OS_WIN32=TRUE fakefile.c -o .build/obj/fakefile.o
.
Linker Options........
i686-w64-mingw32-gcc -m32 -Wl,--gc-sections -lgdi32 -lwinmm .build/obj/fakefile.o -o .build/testProject.exe
.
Compiling ../uGFX/src/gfx.c
Compiling ../uGFX/src/gos/gos_chibios.c
Compiling ../uGFX/src/gos/gos_freertos.c
Compiling ../uGFX/src/gos/gos_win32.c
Compiling ../uGFX/src/gos/gos_linux.c
Compiling ../uGFX/src/gos/gos_osx.c
Compiling ../uGFX/src/gos/gos_raw32.c
Compiling ../uGFX/src/gos/gos_ecos.c
Compiling ../uGFX/src/gos/gos_rawrtos.c
Compiling ../uGFX/src/gos/gos_arduino.c
Compiling ../uGFX/src/gos/gos_cmsis.c
Compiling ../uGFX/src/gos/gos_nios.c
Compiling ../uGFX/src/gos/gos_x_threads.c
Compiling ../uGFX/src/gos/gos_x_heap.c
Compiling ../uGFX/src/gdriver/gdriver.c
Compiling ../uGFX/src/gqueue/gqueue.c
Compiling ../uGFX/src/gdisp/gdisp.c
Compiling ../uGFX/src/gdisp/gdisp_fonts.c
Compiling ../uGFX/src/gdisp/gdisp_pixmap.c
Compiling ../uGFX/src/gdisp/gdisp_image.c
Compiling ../uGFX/src/gdisp/gdisp_image_native.c
Compiling ../uGFX/src/gdisp/gdisp_image_gif.c
Compiling ../uGFX/src/gdisp/gdisp_image_bmp.c
Compiling ../uGFX/src/gdisp/gdisp_image_jpg.c
Compiling ../uGFX/src/gdisp/gdisp_image_png.c
Compiling ../uGFX/src/gdisp/mcufont/mf_encoding.c
Compiling ../uGFX/src/gdisp/mcufont/mf_font.c
Compiling ../uGFX/src/gdisp/mcufont/mf_justify.c
Compiling ../uGFX/src/gdisp/mcufont/mf_kerning.c
Compiling ../uGFX/src/gdisp/mcufont/mf_rlefont.c
Compiling ../uGFX/src/gdisp/mcufont/mf_bwfont.c
Compiling ../uGFX/src/gdisp/mcufont/mf_scaledfont.c
Compiling ../uGFX/src/gdisp/mcufont/mf_wordwrap.c
Compiling ../uGFX/src/gevent/gevent.c
Compiling ../uGFX/src/gtimer/gtimer.c
Compiling ../uGFX/src/gwin/gwin.c
Compiling ../uGFX/src/gwin/gwin_widget.c
Compiling ../uGFX/src/gwin/gwin_wm.c
Compiling ../uGFX/src/gwin/gwin_console.c
Compiling ../uGFX/src/gwin/gwin_graph.c
Compiling ../uGFX/src/gwin/gwin_button.c
Compiling ../uGFX/src/gwin/gwin_slider.c
Compiling ../uGFX/src/gwin/gwin_checkbox.c
Compiling ../uGFX/src/gwin/gwin_image.c
Compiling ../uGFX/src/gwin/gwin_label.c
Compiling ../uGFX/src/gwin/gwin_radio.c
Compiling ../uGFX/src/gwin/gwin_list.c
Compiling ../uGFX/src/gwin/gwin_progressbar.c
Compiling ../uGFX/src/gwin/gwin_container.c
Compiling ../uGFX/src/gwin/gwin_frame.c
Compiling ../uGFX/src/gwin/gwin_tabset.c
Compiling ../uGFX/src/gwin/gwin_gl3d.c
Compiling ../uGFX/src/gwin/gwin_keyboard.c
Compiling ../uGFX/src/gwin/gwin_keyboard_layout.c
Compiling ../uGFX/src/gwin/gwin_textedit.c
Compiling ../uGFX/src/ginput/ginput.c
Compiling ../uGFX/src/ginput/ginput_mouse.c
Compiling ../uGFX/src/ginput/ginput_keyboard.c
Compiling ../uGFX/src/ginput/ginput_keyboard_microcode.c
Compiling ../uGFX/src/ginput/ginput_toggle.c
Compiling ../uGFX/src/ginput/ginput_dial.c
Compiling ../uGFX/src/gadc/gadc.c
Compiling ../uGFX/src/gaudio/gaudio.c
Compiling ../uGFX/src/gmisc/gmisc.c
Compiling ../uGFX/src/gmisc/gmisc_arrayops.c
Compiling ../uGFX/src/gmisc/gmisc_matrix2d.c
Compiling ../uGFX/src/gmisc/gmisc_trig.c
Compiling ../uGFX/src/gfile/gfile.c
Compiling ../uGFX/src/gfile/gfile_fs_native.c
Compiling ../uGFX/src/gfile/gfile_fs_ram.c
Compiling ../uGFX/src/gfile/gfile_fs_rom.c
Compiling ../uGFX/src/gfile/gfile_fs_fatfs.c
Compiling ../uGFX/src/gfile/gfile_fs_petitfs.c
Compiling ../uGFX/src/gfile/gfile_fs_mem.c
Compiling ../uGFX/src/gfile/gfile_fs_chibios.c
Compiling ../uGFX/src/gfile/gfile_fs_strings.c
Compiling ../uGFX/src/gfile/gfile_printg.c
Compiling ../uGFX/src/gfile/gfile_scang.c
Compiling ../uGFX/src/gfile/gfile_stdio.c
Compiling ../uGFX/src/gfile/gfile_fatfs_wrapper.c
Compiling ../uGFX/src/gfile/gfile_fatfs_diskio_chibios.c
Compiling ../uGFX/src/gfile/gfile_petitfs_wrapper.c
Compiling ../uGFX/src/gfile/gfile_petitfs_diskio_chibios.c
Compiling ../uGFX/src/gtrans/gtrans.c
Compiling ../uGFX/drivers/multiple/Win32/gdisp_lld_Win32.c
Compiling ../uGFX/drivers/gaudio/Win32/gaudio_record_Win32.c
Compiling ../uGFX/drivers/gaudio/Win32/gaudio_play_Win32.c
Compiling ../uGFX/demos/modules/gdisp/basics/main.c
Linking .build/testProject.exe
/cygdrive/c/Users/Richard/AppData/Local/Temp/ccYMKe33.ltrans0.ltrans.o:<artificial>:(.text+0x2725): multiple definition of `main'
/usr/i686-w64-mingw32/sys-root/mingw/lib/../lib/libmingw32.a(lib32_libmingw32_a-crt0_c.o):/usr/src/debug/mingw64-i686-runtime-5.0.2-1/crt/crt0_c.c:17: first defined here
/usr/i686-w64-mingw32/sys-root/mingw/lib/../lib/libmingw32.a(lib32_libmingw32_a-crt0_c.o): In function `main':
/usr/src/debug/mingw64-i686-runtime-5.0.2-1/crt/crt0_c.c:18: undefined reference to `WinMain@16'
collect2: error: ld returned 1 exit status
make: *** [../uGFX/tools/gmake_scripts/compiler_gcc.mk:284: .build/testProject.exe] Error 1

C:\dev\uGFX\test\testProject>

Have you any suggestions for what might be the problem here? 

I like to keep cygwin on my default path and I don't think it will play nicely if there are two different copies on there.

Thanks for any help.

All the best,

sd

 

 

[inmarket]

You need to use the i686-pc compiler not the i686-w64 compiler. The difference is the startup files and the "Windows console mode" the two compilers use. Unfortunately I have not been able to find a way to overcome the differences. The i686-pc compiler is available in cygwin64 too as that is the one I use all the time.