I updated all MonetDB background (buildtools, MonetDB, clients) I just checked out M4 and during the compilation I got the error: gcc -m64 -DHAVE_CONFIG_H -I. -I/ufs/goncalve/MonetDB/MonetDB4/src/tools -I../.. -I/ufs/goncalve/MonetDB/MonetDB4/src/tools -I/ufs/goncalve/scratch/MonetDB/MonetDB/include/MonetDB -I/ufs/goncalve/scratch/MonetDB/MonetDB/include/MonetDB/common -I/ufs/goncalve/scratch/MonetDB/MonetDB/include/MonetDB/gdk -I/ufs/goncalve/scratch/MonetDB/clients/include/MonetDB -I/ufs/goncalve/scratch/MonetDB/clients/include/MonetDB/mapilib -I../monet -I/ufs/goncalve/MonetDB/MonetDB4/src/tools/../monet -I../modules/plain -I/ufs/goncalve/MonetDB/MonetDB4/src/tools/../modules/plain -Wall -W -std=c99 -g -Werror-implicit-function-declaration -Werror -Wno-unused-function -Wno-unused-label -D_REENTRANT -c Mserver.c /ufs/goncalve/MonetDB/MonetDB4/src/tools/Mserver.mx: In function ‘Monet_init’: /ufs/goncalve/MonetDB/MonetDB4/src/tools/Mserver.mx:173: error: ‘GDK_mem_pagebits’ undeclared (first use in this function) /ufs/goncalve/MonetDB/MonetDB4/src/tools/Mserver.mx:173: error: (Each undeclared identifier is reported only once /ufs/goncalve/MonetDB/MonetDB4/src/tools/Mserver.mx:173: error: for each function it appears in.) make[5]: *** [Mserver.o] Error 1 make[5]: Leaving directory `/net/gio/export/scratch0/goncalve/MonetDB/MonetDB4/build/src/tools' make[4]: *** [all] Error 2 make[4]: Leaving directory `/net/gio/export/scratch0/goncalve/MonetDB/MonetDB4/build/src/tools' make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory `/net/gio/export/scratch0/goncalve/MonetDB/MonetDB4/build/src' make[2]: *** [all] Error 2 make[2]: Leaving directory `/net/gio/export/scratch0/goncalve/MonetDB/MonetDB4/build/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/net/gio/export/scratch0/goncalve/MonetDB/MonetDB4/build' make: *** [all] Error 2 [goncalve@gio ~]$ In the Path I have buildtools_prefix/bin MonetDB_prefix/bin and clients_prefix/bin Is any trick that I should do to resolve this problem? Note: The prefix of M4 is different from MonetDB. Regards, Romulo