Thank you! I get a compile time error gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -I../../../src/include -D_GNU_SOURCE -c -o trigger.o trigger.c
In file included from ../../../src/include/postgres.h:46:0, from trigger.c:14: trigger.c: In function ‘renametrig_partition’: ../../../src/include/c.h:118:31: error: expected ‘,’ or ‘;’ before ‘__attribute__’ #define pg_attribute_unused() __attribute__((unused)) ^ ../../../src/include/c.h:155:34: note: in expansion of macro ‘pg_attribute_unused’ #define PG_USED_FOR_ASSERTS_ONLY pg_attribute_unused() ^~~~~~~~~~~~~~~~~~~ trigger.c:1588:17: note: in expansion of macro ‘PG_USED_FOR_ASSERTS_ONLY’ int found = 0 PG_USED_FOR_ASSERTS_ONLY; ^~~~~~~~~~~~~~~~~~~~~~~~ trigger.c:1588:7: warning: unused variable ‘found’ [-Wunused-variable] int found = 0 PG_USED_FOR_ASSERTS_ONLY; ^~~~~ make[3]: *** [<builtin>: trigger.o] Error 1 Any ideas on what I might be doing wrong? Regards Arne