Mail Archives: cygwin/2004/03/23/13:44:31
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I wrote:
| Well, it doesn't give a choice as I said, it uses the -mno-cygwin flag
| by default when building in Cygwin. I believe the libSDLmain.a is their
| way of avoiding the _WinMain AT 16 issue, but it shouldn't be necessary
| with the current autotool-devel packages (and I did autoreconf before
| building this).
|
| So again, how can SDL be build WITHOUT -mno-cygwin, and what does one do
| with this libSDLmain.a?
Well, here's what I've got so far:
The -mno-cygwin and libSDLmain business was all coming from
configure.in, and I changed all that, then reautotooled. The dll
(cygSDL-1-2-0.dll) builds fine, and it is linked to cygwin1.dll, but
when I try to link something else to SDL, I get the following:
gcc -g -O2 -I/usr/include/SDL -I/usr/include -DWIN32 -Uunix
- -DHAVE_OPENGL -o testver.exe testver.o -L/usr/lib -lSDL -mwindows -e
_WinMainCRTStartup
/usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/../../../../i686-pc-cygwin/bin/ld:
warning: cannot find entry symbol _WinMainCRTStartup; defaulting to 00401000
/usr/lib/libcygwin.a(libcmain.o)(.text+0x7c): undefined reference to
`_WinMain AT 16'
collect2: ld returned 1 exit status
What I don't understand is why I'm getting undefined reference errors
when linking an .exe; this usually happens when linking a .dll w/o the
current libtool-devel stuff.
I have previously built FOX toolkit with w32api, and I remember that it
called -mwindows -e _WinMainCRTStartup, and I tried linking the dll with
and without these flags and I still get the same results.
Now does anyone have any ideas?
Yaakov
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