build requires aclocal-1.15

[clort81]

symlinking aclocal acolocal-1.15 and
symlinking automake automake-1.15 allows game to build on modern system

maybe you can remove the hardcoded version requirement to 1.15?

[clort81]

oh now i see this also suffers from the breakage the GTK demons introduced a couple years ago...
d int (_GtkTextView::)(int)’}
90 | guint GSEAL (overwrite_mode) : 1;
| ^~~~~
/usr/include/gtk-2.0/gtk/gtktextview.h:91:16: error: ‘cursor_visible’ has not been declared
91 | guint GSEAL (cursor_visible) : 1;
| ^~~~~~~~~~~~~~
/usr/include/gtk-2.0/gtk/gtktextview.h:91:9: error: bit-field ‘guint _GtkTextView::GSEAL(int)’ has non-integral type ‘guint (_GtkTextView::)(int)’ {aka ‘unsigned int (_GtkTextView::)(int)’}
91 | guint GSEAL (cursor_visible) : 1;
| ^~~~~
/usr/include/gtk-2.0/gtk/gtktextview.h:94:16: error: ‘need_im_reset’ has not been declared
94 | guint GSEAL (need_im_reset) : 1;

[revvv]

1. Regenerate the makefiles with autoreconf
2. GDash requires GTK3+

Maybe you should have a look at my fork.