Hello, It took me some time, and others might be interested in it: Below my experiences with (successfully) compiling MonetDB on an UltraSPARC T1 running Solaris 10. Appearantly the UltraSPARC T1 with its many slow cores, is not the ultimate system for MonetDB (which likes fast CPU's the most), but someone has to try it... I configured with "--enable-bits=64 --enable-oid32 --enable-shared --disable-static". (using gcc) By patching iso/math_c99.h according to http://gcc.gnu.org/ml/gcc-patches/2005-05/msg02123.html as Fabian suggested in MonetDB-bug: 1304078, the first hurdle was taken. The warnings below could be worked around by deleting lines 512 t/m 516 from src/gdk/gdk_utils.mx gcc -m64 -DHAVE_CONFIG_H -I. -I/usr/users/wouter/scratch/MonetDB-4.12/src/gdk -I../.. -I/usr/users/wouter/scratch/MonetDB-4.12/src/gdk -I../common -I/usr/users/wouter/scratch/MonetDB-4.12/src/gdk/../common -DLIBGDK -O2 -std=c99 -D__EXTENSIONS__ -Wall -W -fno-strict-aliasing -O2 -fomit-frame-pointer -finline-functions -DHWCOUNTERS -DHW_SunOS -DHW_sun4v -Werror-implicit-function-declaration -Werror -Wno-unused-function -Wno-unused-label -Wno-uninitialized -D_REENTRANT -c gdk_utils.c -fPIC -DPIC -o .libs/libbat_la-gdk_utils.o /usr/users/wouter/scratch/MonetDB-4.12/src/gdk/gdk_utils.mx: In function `GDKmem_heapcheck': /usr/users/wouter/scratch/MonetDB-4.12/src/gdk/gdk_utils.mx:513: warning: comparison of unsigned expression < 0 is always false /usr/users/wouter/scratch/MonetDB-4.12/src/gdk/gdk_utils.mx:513: warning: comparison of unsigned expression < 0 is always false /usr/users/wouter/scratch/MonetDB-4.12/src/gdk/gdk_utils.mx:513: warning: comparison of unsigned expression < 0 is always false gmake[5]: *** [libbat_la-gdk_utils.lo] Error 1 gmake[5]: Leaving directory `/usr/users/wouter/scratch/MonetDB-4.12/SunOS/src/gdk' gmake[4]: *** [all] Error 2 gmake[4]: Leaving directory `/usr/users/wouter/scratch/MonetDB-4.12/SunOS/src/gdk' gmake[3]: *** [all-recursive] Error 1 gmake[3]: Leaving directory `/usr/users/wouter/scratch/MonetDB-4.12/SunOS/src' gmake[2]: *** [all] Error 2 gmake[2]: Leaving directory `/usr/users/wouter/scratch/MonetDB-4.12/SunOS/src' gmake[1]: *** [all-recursive] Error 1 gmake[1]: Leaving directory `/usr/users/wouter/scratch/MonetDB-4.12/SunOS' gmake: *** [all] Error 2 MonetDB then compiled successfully, without warnings. After setting: LD_LIBRARY_PATH=/usr/sfw/lib/64/:/lib/64/ and installing GNU diffutils, make check reported: 1 out of 313 could not be executed, 11 SIGNIFICANTLY different... Among which: two tests that fail due to 64bits vs 32oids in src/gdk:casts (it seems that this test does not take into account the possible difference between bit- and oid-size), 1 java example failed: output was written to err instead of std, two due to timeouts, two failed because of some additional linebrakes in tcp-output, nothing very serious it seems. I have the mTests results available if anyone is interested in those. Pathfinder compiled without problems and make check reported: 15 (out of 1187) could not be executed, 5 SIGNIFICANTLY different). Then the results of some simple queries (on a document with 1.4M elements and 2.3M attributes): -bash-3.00$ time echo "count(doc(\"patrick.xml\")//file)" | MapiClient -lxq 89017 real 0m0.110s user 0m0.021s sys 0m0.034s -bash-3.00$ time echo "count(doc(\"patrick.xml\")//file[@name])" | MapiClient -lxq 89017 real 0m8.255s user 0m0.021s sys 0m0.034s -bash-3.00$ The result of the last query is (in my eyes) dramatic (more than 4 times as slow as a Xeon 2.8). The next step will be to compile with the native compiler, which I haven't done yet, and neither do I know whether I will succeed. Greetings, Wouter