about GDL_TMPDIR / IDL_TMPDIR

Alain C.
2013-11-18
2013-11-18
  • Alain C.
    Alain C.
    2013-11-18

    Today, GDL is using ("basic_fun.cpp", line 212)
    (*env)[i] = SysVar::Dir();
    to define GDL_TMPDIR and IDL_TMPDIR

    Default !DIR (set up by Dir()) in GDL goes to /usr/local (set up by EXEC_PREFIX)
    (since GDL to be install in /usr/local/bin/)

    It is a problem because usually /usr/local is not writable for end users.

    I check what IDL is using on various Linux: /usr/tmp, which is a link to /var/tmp !!

    We have in fact two classic solutions on Linux and OSX: /tmp and /var/tmp
    (/tmp may be frequently cleanup or at reboot; files in /var/tmp may have longuer life)

    in /usr/include/paths.h (exist on Linux and OSX) we have

    #define _PATH_TMP   "/tmp/"
    #define _PATH_VARTMP    "/var/tmp/"
    

    I decided for _PATH_VARTMP which mimic current IDL way

    I don't know how to do for MSwin OSes.
    (and I read it is changing a lot depending on OS versions)
    Patch/help/advices welcome.

    Alain