segfault fix

@mahoneyt944

mame2000-libretro/src/libretro/libretro.c

Line 696 in 49671d5

memcpy(IMAMEBASEPATH, info->path, strlen(core_sys_directory) + 1);

need fixed is causing a segfault its should read memcpy(IMAMEBASEPATH, info->path, strlen(info->path) + 1);

will resolve issue #87

Not sure if teh vector issues have been fixed on this core 2003 had quite a few

[mahoneyt944]

@grant2258 I don't have access in this core.

im sure someone will pick it up will mess up gameloading info is there dont have this cloned

[dankcushions]

i fixed this a few days ago here #86

it won’t fix #87 which is different AFAIK. i bisected it to before the samples changes.

Ill take a look ill need to install retropie though. Do any vector games work might help in the bisect my end only have a pi3. I know vector games arent working on linux 64 bit.

Installed retropie and fully updated with #86 patched vector games have issues on a pi 3. Only tested 3 games.
Tempest works
omegrace black screen

all black screen on 64 bit i would say its video driver issues or a regression that came in somewhere if it used to work

sorted #90