Hi,
I'm getting the following behavior consistently:
$ bash -c 'exec -a KKKK java -h' 2>&1 | egrep 'options?]'
Usage: java.exe [-options] class [args...]
or java.exe [-jar] [-options] jarfile [args...]
$
but
$ bash -c 'exec -a KKKK bash --help' 2>&1 | egrep 'options?]'
Usage: KKKK [GNU long option] [option] ...
KKKK [GNU long option] [option] script-file ...
$
In other words, invoking a Cygwin program sets argv[0] correctly, but
invoking a Windows program doesn't. Interestingly enough, using the MinGW
execv works properly:
$ cat ex.c
#include <stdlib.h>
int main(int ac, char *av[]) {
char const *args[] = { "KKKK", "-h", NULL };
return execv("c:/Program Files/IBM/Java14/bin/java", args);
}
$ make -W ex.c CC="gcc -mno-cygwin" ex
gcc -mno-cygwin ex.c -o ex
$ ./ex 2>&1 | egrep 'options?]'
Usage: KKKK [-options] class [args...]
or KKKK [-jar] [-options] jarfile [args...]
$ make -W ex.c ex
gcc ex.c -o ex
$ ./ex 2>&1 | egrep 'options?]'
Usage: java.exe [-options] class [args...]
or java.exe [-jar] [-options] jarfile [args...]
$ uname -a
CYGWIN_NT-5.1 pechtcha 1.5.12(0.116/4/2) 2004-09-07 15:07 i686 unknown unknown Cygwin
(yes, a self-built DLL from CVS, but the same problem occurs with 1.5.10).
I have a nagging suspicion that the culprit is somewhere in spawn_guts(),
and will poke some more at it unless someone knows off-hand where the
problem is.
Igor
--
http://cs.nyu.edu/~pechtcha/
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