- Added patches dia-configure-c99.patch,
dia-0.97.3-get_data_size.patch, dia-0.97.3-const-ft_vector.patch,
dia-0.97.3-g_test_add_data_func_1.patch and
dia-0.97.3-g_test_add_data_func_2.patch to address C99 compliance
issues (mainly use of incompatible pointer types) that are errors by
default with GCC 14 [boo#1224536]. All of these patches were taken
from the Fedora dia package.

Please (assuming the request is OK) forward to Factory soon-ish too so
that we can switch the default compiler. Thanks.