mupen64plus depends on PATH_MAX

[GoogleCodeExporter]

The current hg version of mupen64plus still depends on PATH_MAX even if it is 
only a "may be defined" in the posix standard. This means that on some systems 
(not just imaginary systems, real existing systems) this is not defined and the 
mupen64plus build just fails because of that.

Also the PATH_MAX variable is bogus on many systems. For example on linux I can 
easily have more than 4096 bytes as defined in /usr/include/linux/limits.h

See http://insanecoding.blogspot.com/2007/11/pathmax-simply-isnt.html for a 
more detailed explanation.

Original issue reported on code.google.com by sven@narfation.org on 6 Jul 2010 at 1:28

[GoogleCodeExporter]

Small test on linux with ext4 (path name more than 4096 bytes long; shell is 
zsh):
mkdir -p 
/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefg
hijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmno
pqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvw
xyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123
456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789ab
cdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghij
klmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopq
rstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxy
z0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456
789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcd
efghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijkl
mnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrst
uvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0
123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345678
9abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefg
hijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmn
opqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuv
wxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123
456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/a
bcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghi
jklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopq
rstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxy
z0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345
6789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcd
efghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijkl
mnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrs
tuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0
123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345678
9abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdef
ghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmn
opqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuv
wxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz012
3456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789a
bcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghi
jklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnop
qrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwx
yz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345
6789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abc
defghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijk
lmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrs
tuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0
123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz01234567
89abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdef
ghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmn
opqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstu
vwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012
3456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789a
bcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefgh
ijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnop
qrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwx
yz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz01234
56789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abc
defghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijk
lmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
cd 
/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefg
hijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmno
pqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvw
xyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123
456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789ab
cdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghij
klmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopq
rstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxy
z0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456
789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcd
efghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijkl
mnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrst
uvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0
123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345678
9abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefg
hijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmn
opqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuv
wxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123
456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/a
bcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghi
jklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopq
rstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxy
z0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345
6789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcd
efghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijkl
mnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrs
tuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0
123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345678
9abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdef
ghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmn
opqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuv
wxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz012
3456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789a
bcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghi
jklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnop
qrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwx
yz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345
6789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abc
defghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijk
lmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrs
tuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0
123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz01234567
89abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdef
ghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmn
opqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstu
vwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012
3456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789a
bcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefgh
ijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnop
qrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwx
yz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz01234
56789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abc
defghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijk
lmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/
cp /fish.n64 .
mupen64plus fish.n64
mupen64plus 
/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefg
hijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmno
pqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvw
xyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123
456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789ab
cdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghij
klmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopq
rstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxy
z0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456
789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcd
efghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijkl
mnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrst
uvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0
123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345678
9abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefg
hijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmn
opqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuv
wxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123
456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/a
bcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghi
jklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopq
rstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxy
z0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345
6789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcd
efghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijkl
mnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrs
tuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0
123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345678
9abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdef
ghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmn
opqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuv
wxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz012
3456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789a
bcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghi
jklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnop
qrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwx
yz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012345
6789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abc
defghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijk
lmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrs
tuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0
123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz01234567
89abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdef
ghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmn
opqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstu
vwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz012
3456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789a
bcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz0123456789abcdefgh
ijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnop
qrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwx
yz0123456789abcdefghijklmnopqrstuvwxyz0123456789/abcdefghijklmnopqrstuvwxyz01234
56789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abc
defghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijk
lmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789/fish.n64

The first call to mupen64plus works, but the second one fails

Original comment by sven@narfation.org on 13 Jul 2010 at 4:12