From Lazarus wiki
The SunOS/ELF aka Solaris port is in maintenance mode.
- The SPARC/Solaris port works fairly well, and nightly testsuite runs keep it that way. It is tested occasionally (not under active development), see Lazarus on Solaris.
Useful to know
- FPC/Solaris currently uses the GNU Tool chain. http://www.blastwave.org/ provides a prepackaged packages with a usable package manager for Solaris.
- http://www.sunfreeware.com also has the required GNU packages (make, libintl, gdb, binutils). Its assembler and linker are called gas/gld in order not to conflict with Sun's as/ld, but the compiler first search for these names. Remember to also use gmake rather than make when building FPC.
- The equivalent to strace/ktrace is called truss on Solaris.