Corrections for Solaris 2.6 using gcc - compiler: 1. Problems with src.alpha/sites/s.geom-package? a) Edit src.alpha/sites/s.geom/libes/basic/basic.h: comment line 92 to 94: from: #ifdef sun char *sprintf(); #endif to : /*#ifdef sun * char *sprintf(); * #endif */ b) Edit src.alpha/sites/s.geom/libes/include/basic.h: comment line 92 to 94: from: #ifdef sun char *sprintf(); #endif to : /*#ifdef sun * char *sprintf(); * #endif */ Then you will be able to compile the s.geom module. The v.geom seems to cause more problems. Any ideas? To skip v.geom, change to src421/src/CMD/next_step/ textedit the solaris file stored there and change from: src.alpha/sites/s.geom to: src.alpha/sites/s.in.ascii.dem After that change to src421/src/CMD/ and proceed with GISGEN.my.