I got the following compile error when trying to compile Gnumeric 1.2.10 with
gcc 2.95.3:

<--  snip  -->

...

-o .libs/gog-xy.o
gog-xy.c:523: warning: #warning what about small bubbles. With a very small radi
us, libart emits lot of warnings.
gog-xy.c:649: warning: #warning "move map into axis"
gog-xy.c: In function `gog_bubble_plot_class_init':
gog-xy.c:438: parse error before `*'
gog-xy.c:440: `gog_2d_plot_klass' undeclared (first use in this function)
gog-xy.c:440: (Each undeclared identifier is reported only once
gog-xy.c:440: for each function it appears in.)
make[7]: *** [gog-xy.lo] Error 1
make[7]: Leaving directory `/aux/adrian/build/gnumeric-1.2.10/src/cut-n-paste-co
de/goffice/graph/plugins/plot_xy'

<--  snip   -->

gcc 2.95 doesn't support declarations mixed with code.

I'll attach a patch in a minute.