Judd wrote:
The error I'm getting now is: ---------------------------- /usr/lib/gcc-lib/i686-pc-cygwin/3.3.3/libgcc.a(_chkstk.o)(.text+0x0): multiple definition of `__alloca'
/usr/lib/libcygwin.a(d000085.o)(.text+0x0): first defined here
/usr/lib/gcc-lib/i686-pc-cygwin/3.3.3/libgcc.a(_eprintf.o)(.text+0x0): multiple definition of `___eprintf'
/usr/lib/libcygwin.a(d000027.o)(.text+0x0): first defined here
---------------------------------
From the build command:
-------------------------
g++ -shared \
> -nodefaultlibs \ > -o libInventor.dll \ > -Wl,--out-implib=libInventor.dll.a \
-Wl,--export-all-symbols \
> -Wl,--enable-auto-import \ > -Wl,--whole-archive \
libInventor.a \
> -WL,--no-whole-archive \ > -L/usr/lib \ > -L/usr/lib/gcc-lib/i686-pc-cygwin/3.3.3 \ > -L/usr/X11R6/lib \ > -L/usr/lib/w32api \ > -L../libimage \ > -L../libFL/src \
-ljpeg.dll -limage -lFL -lX11.dll -lfltk_gl.dll -lGLU.dll \
> -lGL.dll -liconv.dll -lfreetype.dll -lcygwin -lstdc++ \ > -lasprintf -lz -lkernel32 -lgcc
You don't need to add the .dll prefix, the linker should automatically pick up the .dll.a import lib if both, import lib and static archives are present.
-----------------------------
I'm using nodefaultlibs because I had a problem linking before where I was getting lots of multiple definition errors from essentially the same library. Using nodefaultlibs and linking all the libs I need by hand has fixed all those, but I have those last 2 multiple definition errors. Is there any way to link libcygwin and libgcc without getting multiple definitions of ___eprintf and __alloca? It seems bizarre that those 2 would conflict. Maybe there's a command line option that I need to be using in my build command.
There is no option like nodefaultlibs:
$ ld --help | grep nodefaultlibs
Try -nostdlib instead.
Gerrit -- =^..^=
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