gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wcast-function-type -Wshadow=compatible-local -Wformat-security -Wmissing-variable-declarations -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -Wno-stringop-truncation -g -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -fPIC -fvisibility=hidden -std=c99 -fPIC -Wall -Wextra -Werror -Wno-unused-parameter -Wno-implicit-fallthrough -Iinclude -I/usr/pgsql-18/include -I. -I./ -I/usr/pgsql-18/include/server -I/usr/pgsql-18/include/internal    -D_GNU_SOURCE -I/usr/include/libxml2 -DWITH_GZFILEOP  -I/usr/include  -c -o src/hll.o src/hll.c
src/hll.c:130:6: error: no previous declaration for ‘ForceGroupAgg’ [-Werror=missing-variable-declarations]
  130 | bool ForceGroupAgg = false;
      |      ^~~~~~~~~~~~~
cc1: all warnings being treated as errors