<HTML> <HEAD> <TITLE>[plt-scheme] 4.2.5.7 compilation error under SGI IRIX 6.</TITLE> </HEAD> <BODY> The problem was in the compiler options. "-O3" or "-O2" for some reason to give an error. Now the “make” going without problems. But "make install", I received the following error: mzschemecgc: pre-installing: plot plot: compiling "src / all" -> "compiled / native / mips-irix / libplplot.so" ... compile-extension: cc-1028 cc: ERROR File = gd_drv.c, Line = 280   The expression used must have a constant value.       DrvOpt gd_options [] = (("optimise", DRV_INT, & optimise, "Optimise PNG palette when possible"),                                                     ^ cc-1028 cc: ERROR File = gd_drv.c, Line = 281   The expression used must have a constant value.                                 ("Def_black15", DRV_INT, & black15, "Define idx 15 as black. If the background is \" whiteish \ "(from \"-bg \ "option), force index 15 (traditionally white) to be \" black \ " ")                                                           ^ cc-1028 cc: ERROR File = gd_drv.c, Line = 282   The expression used must have a constant value.                                 ("Swp_red15", DRV_INT, & red15, "Swap index a (usually red) and a (usually white); always done after \" black15 \ "; quite useful for quick changes to web pages"),                                                         ^ cc-1028 cc: ERROR File = gd_drv.c, Line = 284   The expression used must have a constant value.                                 ("8bit", DRV_INT, & palette, "Palette (8 bit) mode"),                                                    ^ cc-1028 cc: ERROR File = gd_drv.c, Line = 285   The expression used must have a constant value.                                 ("24bit", DRV_INT, & truecolour, "Truecolor (24 bit) mode"),                                                     ^ cc-1174 cc: WARNING File = gd_drv.c, Line = 261   The variable "i" was declared but never referenced.       int i;           ^ cc-1174 cc: WARNING File = gd_drv.c, Line = 978   The variable "i" was declared but never referenced.   int i;       ^ 5 errors detected in the compilation of "gd_drv.c". The installation will continue and this does not bother me, but maybe you can fix it faster way? P.S. I did ".. /configure --prefix=my/dir && make $&& make install” and got CGC build by default. And the documentation says that there should be 3m. It's my mistake or how it should be? </BODY> </HTML>