win32: improve handling of 'c:file' paths for executables

bb_basename() didn't properly handle paths of the form 'c:file'.
Attempting to run 'c:busybox' resulted in 'c:busybox: applet not found'.

The shell had a similar problem: trying to run 'c:busybox' reported
'sh: c:busybox: not found'.

1 files changed, 1 insertions, 1 deletions

diff --git a/libbb/get_last_path_component.c b/libbb/get_last_path_component.c
index 3a9b9237e..00649620d 100644
--- a/libbb/get_last_path_component.c
+++ b/libbb/get_last_path_component.c
@@ -13,7 +13,7 @@ const char* FAST_FUNC bb_basename(const char *name)
 #if ENABLE_PLATFORM_MINGW32
         const char *cp;
         for (cp = name; *cp; cp++)
-                if (*cp == '/' || *cp == '\\')
+                if (*cp == '/' || *cp == '\\' || *cp == ':')
                         name = cp + 1;
 #else
         const char *cp = strrchr(name, '/');