$ make parser.bc
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o analyze.o analyze.c
'/usr/bin/perl' ./check_keywords.pl gram.y ../../../src/include/parser/kwlist.h
/usr/local/bin/bison -Wno-deprecated  -d -o gram.c gram.y
touch gram.h
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o gram.o gram.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_agg.o parse_agg.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_clause.o parse_clause.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_coerce.o parse_coerce.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_collate.o parse_collate.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_cte.o parse_cte.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_enr.o parse_enr.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_expr.o parse_expr.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_func.o parse_func.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_merge.o parse_merge.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_node.o parse_node.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_oper.o parse_oper.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_param.o parse_param.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_relation.o parse_relation.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_target.o parse_target.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_type.o parse_type.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parse_utilcmd.o parse_utilcmd.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o parser.o parser.c
/usr/local/bin/flex -b -CF -p -p -o'scan.c' scan.l
'/usr/bin/perl' ../../../src/tools/fix-old-flex-code.pl 'scan.c'
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o scan.o scan.c
clang-16 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Werror=unguarded-availability-new -Wendif-labels -Wmissing-format-attribute -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -Wno-cast-function-type-strict -g -ggdb -O0 -g3 -fno-omit-frame-pointer -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include  -c -o scansup.o scansup.c
/usr/lib/llvm-16/bin/clang -Wno-ignored-attributes -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Xclang -no-opaque-pointers -Wno-unused-command-line-argument -Wno-compound-token-split-by-macro -O2  -I. -I. -I../../../src/include -D_GNU_SOURCE  -I/usr/include/libxml2 -I/usr/local/include -flto=thin -emit-llvm -c -o parser.bc parser.c

$ ls
analyze.c          gram.o       parse_agg.c     parse_coerce.o   parse_enr.c   parse_func.o   parse_oper.c   parser.c          parse_target.o   README     scansup.o
analyze.o          gramparse.h  parse_agg.o     parse_collate.c  parse_enr.o   parse_merge.c  parse_oper.o   parse_relation.c  parse_type.c     scan.c
check_keywords.pl  gram.y       parse_clause.c  parse_collate.o  parse_expr.c  parse_merge.o  parse_param.c  parse_relation.o  parse_type.o     scan.l
gram.c             Makefile     parse_clause.o  parse_cte.c      parse_expr.o  parse_node.c   parse_param.o  parser.o          parse_utilcmd.c  scan.o
gram.h             meson.build  parse_coerce.c  parse_cte.o      parse_func.c  parse_node.o   parser.bc      parse_target.c    parse_utilcmd.o  scansup.c