Dear developers I was updating my M4 release and I got the following error: gcc -m64 -DHAVE_CONFIG_H -I. -I/ufs/goncalve/MonetDB/MonetDB_Release/MonetDB4/MonetDB/src/modules/plain -I../../.. -I/ufs/goncalve/MonetDB/MonetDB_Release/MonetDB4/MonetDB/src/modules/plain -I../../common -I/ufs/goncalve/MonetDB/MonetDB_Release/MonetDB4/MonetDB/src/modules/plain/../../common -I../../gdk -I/ufs/goncalve/MonetDB/MonetDB_Release/MonetDB4/MonetDB/src/modules/plain/../../gdk -I../../monet -I/ufs/goncalve/MonetDB/MonetDB_Release/MonetDB4/MonetDB/src/modules/plain/../../monet -DLIBUPGRADE -Wall -W -std=c99 -g -Werror-implicit-function-declaration -Werror -Wno-unused-function -Wno-unused-label -D_REENTRANT -c upgrade.c -fPIC -DPIC -o .libs/lib_upgrade_la-upgrade.o /ufs/goncalve/MonetDB/MonetDB_Release/MonetDB4/MonetDB/src/modules/plain/upgrade.mx: In function 'bat_convert': /ufs/goncalve/MonetDB/MonetDB_Release/MonetDB4/MonetDB/src/modules/plain/upgrade.mx:465: error: 'Heap' has no member named 'padding' /ufs/goncalve/MonetDB/MonetDB_Release/MonetDB4/MonetDB/src/modules/plain/upgrade.mx:486: error: 'Heap' has no member named 'padding' /ufs/goncalve/MonetDB/MonetDB_Release/MonetDB4/MonetDB/src/modules/plain/upgrade.mx:509: error: 'Heap' has no member named 'padding' make[7]: *** [lib_upgrade_la-upgrade.lo] Error 1 make[7]: Leaving directory `/net/amelia/export/scratch1/goncalve/MonetDB/MonetDB_Release/monetdb4/build/src/modules/plain' make[6]: *** [all] Error 2 I also updated the buildtools. It should a be a stable branch, right? ;) Regards, Romulo