Hi, I installed gem gtk2 on linux, but it show a error. --> gem install gtk2 show below error message: .... te.h:159: syntax error before "void" rbgprivate.h:160: syntax error before "void" rbgprivate.h:161: syntax error before "void" rbgprivate.h:162: syntax error before "void" rbgprivate.h:163: syntax error before "void" rbgprivate.h:164: syntax error before "void" rbgprivate.h:165: syntax error before "void" rbgprivate.h:166: syntax error before "void" rbgprivate.h:167: syntax error before "void" rbgprivate.h:168: syntax error before "void" rbgprivate.h:169: syntax error before "void" make: *** [rbglib_timer.o] Error 1 .... I try to download "ruby-gnome2-all-1.1.2" and followed below command: --> ruby extconf.rb --> make && make install show below error message: ..... rsvg2.h:61: syntax error before "void" rsvg2.h:62: syntax error before "void" rbrsvghandle.c: In function `rg_title': rbrsvghandle.c:273: warning: implicit declaration of function `rsvg_handle_get_title' rbrsvghandle.c:273: warning: passing arg 1 of `rbg_cstr2rval' makes pointer from integer without a cast rbrsvghandle.c: In function `rg_desc': rbrsvghandle.c:279: warning: implicit declaration of function `rsvg_handle_get_desc' rbrsvghandle.c:279: warning: passing arg 1 of `rbg_cstr2rval' makes pointer from integer without a cast make[2]: *** [rbrsvghandle.o] Error 1 SUCCEEDED: NONE FAILED: glib2 gdk_pixbuf2 pango atk gtk2 rsvg2 ----- Done. ..... How to fix this problem on RedHat3 ruby1.9.2 Thanks, -- Posted via http://www.ruby-forum.com/.