2006-05-20  Manish Singh  <yosh@gimp.org>

        Fixes to address -ansi -pedantic compilation (bug #342390).
        Thanks goes to Daniel Richard G. for noticing and suggesting
        fixes.

        * libgimpbase/gimpsignal.c: #include "config.h" and define
        __POSIX_SOURCE for sigaction stuff.

        * app/base/tile-swap.c (tile_swap_test): use more portable
        S_IRUSR and S_IWUSR, instead of S_IREAD and S_IWRITE.

        * plug-ins/common/ripple.c
        * plug-ins/imagemap/imap_main.c: use C89 comments.

        * plug-ins/Lighting/lighting_preview.h: don't define spin widget
        variables here...

        * plug-ins/Lighting/lighting_ui.[ch]: ... and instead take care
        of them here.