Allow Mac users to double-click to launch Crawl:

- Use argv[0] to figure out where Crawl lives and where to find data files.
  The Mac Finder sets the working directory to / and the full path to the 
  executable is available in argv[0] when the user double-clicks.
- Converted some of the old char*s to std::string.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1407 c06c8d41-db1a-0410-9941-cceddc491573

1 files changed, 1 insertions, 1 deletions

diff --git a/crawl-ref/source/chardump.cc b/crawl-ref/source/chardump.cc
index 0458a9a594..2a78fd6e41 100644
--- a/crawl-ref/source/chardump.cc
+++ b/crawl-ref/source/chardump.cc
@@ -944,7 +944,7 @@ static std::string morgue_directory()
 {
     std::string dir =
         !Options.morgue_dir.empty()? Options.morgue_dir :
-        SysEnv.crawl_dir           ? SysEnv.crawl_dir : "";
+        !SysEnv.crawl_dir.empty()  ? SysEnv.crawl_dir : "";
 
     if (!dir.empty() && dir[dir.length() - 1] != FILE_SEPARATOR)
         dir += FILE_SEPARATOR;