--- a/Makefile	2023-04-28 18:07:38.000000000 +0200
+++ b/Makefile	2023-04-28 18:15:56.074838575 +0200
@@ -16,30 +16,9 @@
 	sem.c set.c str.c time.c
 LDADD+=	-lbsd
 
-CLEANFILES+=error.h const.h
-
 .if (${MACHINE_ARCH} == "vax")
 alloc.o:
 	${CC} ${CFLAGS} ${CPPFLAGS} -O0 -c $<
 .endif
 
-const.h: error.h
-
-error.h: error.c
-	@rm -f $@
-	@echo '/* Do not edit this file, make creates it. */' > $@
-	@echo '#ifndef _h_sh_err' >> $@
-	@echo '#define _h_sh_err' >> $@
-	egrep 'ERR_' ${.CURDIR}/$*.c | egrep '^#define' >> $@
-	@echo '#endif /* _h_sh_err */' >> $@
-
-const.h: const.c
-	@rm -f $@
-	@echo '/* Do not edit this file, make creates it. */' > $@
-	${CC} -E ${CFLAGS} ${.CURDIR}/$*.c | egrep 'Char STR' | \
-	    sed -e 's/Char \([a-zA-Z0-9_]*\)\(.*\)/extern Char \1[];/' | \
-	    sort >> $@
-
-.depend alloc.o: const.h error.h 
-
 .include <bsd.prog.mk>
--- /dev/null	2023-04-27 02:51:39.496534973 +0200
+++ a/error.h	2023-04-28 18:07:39.065506242 +0200
@@ -0,0 +1,119 @@
+/* Do not edit this file, make creates it. */
+#ifndef _h_sh_err
+#define _h_sh_err
+#define ERR_FLAGS	0xf0000000
+#define ERR_NAME	0x10000000
+#define ERR_SILENT	0x20000000
+#define ERR_OLD		0x40000000
+#define ERR_SYNTAX	0
+#define ERR_NOTALLOWED	1
+#define ERR_WTOOLONG	2
+#define ERR_LTOOLONG	3
+#define ERR_DOLZERO	4
+#define ERR_DOLQUEST	5
+#define ERR_INCBR	6
+#define ERR_EXPORD	7
+#define ERR_BADMOD	8
+#define ERR_SUBSCRIPT	9
+#define ERR_BADNUM	10
+#define ERR_NOMORE	11
+#define ERR_FILENAME	12
+#define ERR_GLOB	13
+#define ERR_COMMAND	14
+#define ERR_TOOFEW	15
+#define ERR_TOOMANY	16
+#define ERR_DANGER	17
+#define ERR_EMPTYIF	18
+#define ERR_IMPRTHEN	19
+#define ERR_NOPAREN	20
+#define ERR_NOTFOUND	21
+#define ERR_MASK	22
+#define ERR_LIMIT	23
+#define ERR_TOOLARGE	24
+#define ERR_SCALEF	25
+#define ERR_UNDVAR	26
+#define ERR_DEEP	27
+#define ERR_BADSIG	28
+#define ERR_UNKSIG	29
+#define ERR_VARBEGIN	30
+#define ERR_VARTOOLONG	31
+#define ERR_VARALNUM	32
+#define ERR_JOBCONTROL	33
+#define ERR_EXPRESSION	34
+#define ERR_NOHOMEDIR	35
+#define ERR_CANTCHANGE	36
+#define ERR_NULLCOM	37
+#define ERR_ASSIGN	38
+#define ERR_UNKNOWNOP	39
+#define ERR_AMBIG	40
+#define ERR_EXISTS	41
+#define ERR_INTR	42
+#define ERR_RANGE	43
+#define ERR_OVERFLOW	44
+#define ERR_VARMOD	45
+#define ERR_NOSUCHJOB	46
+#define ERR_TERMINAL	47
+#define ERR_NOTWHILE	48
+#define ERR_NOPROC	49
+#define ERR_NOMATCH	50
+#define ERR_MISSING	51
+#define ERR_UNMATCHED	52
+#define ERR_NOMEM	53
+#define ERR_PIPE	54
+#define ERR_SYSTEM	55
+#define ERR_STRING	56
+#define ERR_JOBS	57
+#define ERR_JOBARGS	58
+#define ERR_JOBCUR	59
+#define ERR_JOBPREV	60
+#define ERR_JOBPAT	61
+#define ERR_NESTING	62
+#define ERR_JOBCTRLSUB	63
+#define ERR_BADPLPS	64
+#define ERR_STOPPED	65
+#define ERR_NODIR	66
+#define ERR_EMPTY	67
+#define ERR_BADDIR	68
+#define ERR_DIRUS	69
+#define ERR_HFLAG	70
+#define ERR_NOTLOGIN	71
+#define ERR_DIV0	72
+#define ERR_MOD0	73
+#define ERR_BADSCALE	74
+#define ERR_SUSPLOG	75
+#define ERR_UNKUSER	76
+#define ERR_NOHOME	77
+#define ERR_HISTUS	78
+#define ERR_SPDOLLT	79
+#define ERR_NEWLINE	80
+#define ERR_SPSTAR	81
+#define ERR_DIGIT	82
+#define ERR_VARILL	83
+#define ERR_NLINDEX	84
+#define ERR_EXPOVFL	85
+#define ERR_VARSYN	86
+#define ERR_BADBANG	87
+#define ERR_NOSUBST	88
+#define ERR_BADSUBST	89
+#define ERR_LHS		90
+#define ERR_RHSLONG	91
+#define ERR_BADBANGMOD	92
+#define ERR_MODFAIL	93
+#define ERR_SUBOVFL	94
+#define ERR_BADBANGARG	95
+#define ERR_NOSEARCH	96
+#define ERR_NOEVENT	97
+#define ERR_TOOMANYRP	98
+#define ERR_TOOMANYLP	99
+#define ERR_BADPLP	100
+#define ERR_MISRED	101
+#define ERR_OUTRED	102
+#define ERR_REDPAR	103
+#define ERR_INRED	104
+#define ERR_ALIASLOOP	105
+#define ERR_HISTLOOP	106
+#define ERR_ARCH	107
+#define ERR_FILEINQ	108
+#define ERR_SELOVFL	109
+#define ERR_INVALID	110
+#endif /* _h_sh_err */
--- /dev/null	2023-04-27 02:51:39.496534973 +0200
+++ a/const.h	2023-04-28 18:07:39.125507368 +0200
@@ -0,0 +1,110 @@
+/* Do not edit this file, make creates it. */
+extern Char STR0[];
+extern Char STR1[];
+extern Char STRHOME[];
+extern Char STRLANG[];
+extern Char STRLC_CTYPE[];
+extern Char STRLOGNAME[];
+extern Char STRLbrace[];
+extern Char STRLparen[];
+extern Char STRLparensp[];
+extern Char STRNULL[];
+extern Char STRPATH[];
+extern Char STRPWD[];
+extern Char STRQNULL[];
+extern Char STRRbrace[];
+extern Char STRRparen[];
+extern Char STRTERM[];
+extern Char STRUSER[];
+extern Char STRalias[];
+extern Char STRand2[];
+extern Char STRand[];
+extern Char STRaout[];
+extern Char STRargv[];
+extern Char STRbang[];
+extern Char STRcaret[];
+extern Char STRcdpath[];
+extern Char STRcent2[];
+extern Char STRcenthash[];
+extern Char STRcentminus[];
+extern Char STRcentplus[];
+extern Char STRchase_symlinks[];
+extern Char STRchild[];
+extern Char STRcolon[];
+extern Char STRcwd[];
+extern Char STRdefault[];
+extern Char STRdot[];
+extern Char STRdotdotsl[];
+extern Char STRdotsl[];
+extern Char STRecho[];
+extern Char STRequal[];
+extern Char STRfakecom1[];
+extern Char STRfakecom[];
+extern Char STRfignore[];
+extern Char STRfilec[];
+extern Char STRhistchars[];
+extern Char STRhistfile[];
+extern Char STRhistory[];
+extern Char STRhome[];
+extern Char STRignore_symlinks[];
+extern Char STRignoreeof[];
+extern Char STRjobs[];
+extern Char STRlistjobs[];
+extern Char STRlogout[];
+extern Char STRlong[];
+extern Char STRmail[];
+extern Char STRmh[];
+extern Char STRminus[];
+extern Char STRml[];
+extern Char STRmn[];
+extern Char STRmquestion[];
+extern Char STRnice[];
+extern Char STRnoambiguous[];
+extern Char STRnobeep[];
+extern Char STRnoclobber[];
+extern Char STRnoglob[];
+extern Char STRnohup[];
+extern Char STRnonomatch[];
+extern Char STRnormal[];
+extern Char STRnotify[];
+extern Char STRor2[];
+extern Char STRor[];
+extern Char STRpath[];
+extern Char STRprintexitvalue[];
+extern Char STRprompt2[];
+extern Char STRprompt[];
+extern Char STRpushdsilent[];
+extern Char STRret[];
+extern Char STRsavehist[];
+extern Char STRsemisp[];
+extern Char STRshell[];
+extern Char STRslash[];
+extern Char STRsldotcshrc[];
+extern Char STRsldotlogin[];
+extern Char STRsldthist[];
+extern Char STRsldtlogout[];
+extern Char STRsource[];
+extern Char STRsp3dots[];
+extern Char STRspLarrow2sp[];
+extern Char STRspLarrowsp[];
+extern Char STRspRarrow2[];
+extern Char STRspRarrow[];
+extern Char STRspRparen[];
+extern Char STRspace[];
+extern Char STRspand2sp[];
+extern Char STRspor2sp[];
+extern Char STRsporsp[];
+extern Char STRstar[];
+extern Char STRstatus[];
+extern Char STRsymcent[];
+extern Char STRsymhash[];
+extern Char STRterm[];
+extern Char STRthen[];
+extern Char STRtilde[];
+extern Char STRtildothist[];
+extern Char STRtime[];
+extern Char STRtmpsh[];
+extern Char STRunalias[];
+extern Char STRuser[];
+extern Char STRverbose[];
+extern Char STRwordchars[];