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Annotation of researchv10no/cmd/make/ident.c, revision 1.1

1.1     ! root        1: char *xxxvers =  "\n@(#) MAKE.  VERSION 2.78     22 MAY 1986\n" ;
        !             2: static char *sccsid = "@(#)ident.c     8th Edition (Bell Labs) 85/10/28";
        !             3: 
        !             4: /*
        !             5: 2.1 4/24/76    Base version
        !             6: 
        !             7: 2.2 4/26/76     Error found by SRB in overriding pattern rules;
        !             8:                corrected gram.y
        !             9: 
        !            10: 2.3 4/27/76    Further correction for overriding pattern rules;
        !            11:                corrected doname.c
        !            12: 
        !            13: 2.4            Removed .CLEAR name, added .IGNORE.
        !            14:                A .SUFFIXES rule without dependents clears the list
        !            15: 
        !            16: 2.5            Stripped output
        !            17: 
        !            18: 2.6            Changed doshell to accomodate new shell.
        !            19: 
        !            20: 2.7            Following SRB's sugestion, added ${...} as
        !            21:                alternate macro name
        !            22: 
        !            23: 2.8            Defined macros AS and DTGEN in files.c.
        !            24: 
        !            25: 2.9            Put in a fix to prevent removal of files
        !            26:                upon interrupt in a  ::  rule.
        !            27: 
        !            28: 2.10           Fixed bugs involving messages for ::
        !            29:                and closing standard input
        !            30: 
        !            31: 2.11           Changed time test from <= to <
        !            32:                (equal times are considered in sync)
        !            33: 
        !            34: 2.12           Installed -t flag (touch and update time of
        !            35:                files rather than issue commands)
        !            36:                Fixed bug in dosys
        !            37: 
        !            38: 2.13           Fixed lex.c to allow sharps (#) in commands
        !            39: 
        !            40: 2.14           Added .DEFAULT rule
        !            41: 
        !            42: 2.15           Changed to <lS> I/O System (stdio.h)
        !            43: 
        !            44: 2.16           Removed references to double floats and macro HAVELONGS;
        !            45:                committed to use of long ints for times.
        !            46: 2.17           Corrected metacharacter list in dosys.c.
        !            47: 2.18           Miscellaneous fixes
        !            48: 2.19           Updated files.c to use include file stat.h
        !            49: 2.20           Added -q flag for Mike Lesk
        !            50: 2.21           Added AWK rules and  .w  suffix to  files.c
        !            51: 2.22           Added colon to the list of metacharacters
        !            52: 2.23           Macro substitutions on dependency lines.
        !            53:                Redid argument and macro setting.
        !            54:                Close files before exec'ing.
        !            55:                Print > at beginning of command lines.
        !            56:                No printing of commands beginnng with @.
        !            57: 2.24   Parametrized propt sequence in doname.c (4/1/77)
        !            58: 2.25   Added $? facility
        !            59: 2.26   Fixed bug in macro expansion
        !            60: 2.27   Repaired interrupt handling
        !            61: 2.28   Repaired bug in -n
        !            62: 2.29   Repaired bug in file closing and $? string creation
        !            63: 2.30   Repaired bug in grammar about command lines
        !            64: 2.31   Added -k flag, modified doname.c and defs
        !            65: 2.32   Made "keepgoing" the default, added -S flag,
        !            66:                changed handling of funny characters internally
        !            67: 2.3    Small fixups to interrupt and quit handling.
        !            68:               Changed default back to -k.
        !            69: 2.34   Added  .PRECIOUS rule for interrupts
        !            70: 2.35   Added references to include files (due to TLL)
        !            71: 2.36   Fixed bug in lex.c so = permitted in rules on :; line
        !            72: 2.37   Miscellaneous code cleanups
        !            73: 2.38   Sleep one second after each touch in -t mode
        !            74: 2.39   Extended string[] declaration in doname.c
        !            75: 2.40   Permit recursive macro references
        !            76: 2.41   Separated YYLMAX into INMAX and OUTMAX macros, specifying longest
        !            77:        input and output lines respectively.
        !            78: 2.42   Fixed bug involving :: lines without dependents
        !            79: 2.43   Main name is first name that contains a slash or doesn't
        !            80:        begin with a dot
        !            81: 2.44   Fixed bug involving $$ on command line
        !            82: 2.45   Changed files.c to put .f before .e, .r and to use f77 instead of fc.
        !            83: 2.46   Changed dosys.c to eliminate copying and to call execvp.
        !            84: 2.47   Changed files.c to add ".out" suffix and rules.
        !            85: 2.48   Changed misc.c to permit tabs preceding = in macro definition
        !            86: 2.49   Added reference to <ctyp.h>. Removed -lS references from files.c
        !            87: 2.50   General cleanup to reduce lint messages.  (changes in declarations
        !            88:        and in uses of variables)
        !            89: 2.51   Further cleanup making use of new Yacc features.
        !            90: 2.52
        !            91: 2.53   Changed handling of "touch"
        !            92: 2.54   Fixed bug involving comments in lexical analyzer.
        !            93: 2.55   Ignore commands that begin with a # are comments.
        !            94: 2.56   Added = to list of META characters (to permit shell commands)
        !            95: 2.57   Changed lookarch and getobj to fix bugs.
        !            96: 2.58   Fixed interrupt handling.
        !            97: 2.59   Changed references to sprintf to accomodate new function definition
        !            98:        Also fixed extern declarations.
        !            99: 2.60   Limited the number of open directories.
        !           100: 2.61   Added code to handle archives with ascii headers.
        !           101: 2.62   Joe Condon Fixes to archive formats
        !           102: 2.63   Pattern Matching (%) stuff.
        !           103: 2.64   Reinstalled $(TGS) as $^ from other version
        !           104: 2.65   Installed dynamic macros ( := commands).
        !           105: 2.66   Sped up pattern matching code
        !           106: 2.67   Changed pattern matching code to permit multiple dependents
        !           107: 2.68   Added + (do it despite -n) prefix to command lines.
        !           108:        Fixed bug involving metacharacter expansions on dependency lines.
        !           109: 2.69   Added & to dependency lines and new background process spawning
        !           110: 2.70   Added Bradford's macros: $/, $@, *D, *F, <D, <F, @D, @F.
        !           111: 2.71   Added include stack to input.
        !           112:        Added check for sccs makefiles:  s.[Mm]akefile
        !           113: 2.72   Load environment into macro tables. Added Bradford's -e flag.
        !           114: 2.73   Pass changed environment macros out to commands.
        !           115: 2.74   Fixed limit on args in dosys.c.
        !           116:        Non-existent archives now treated as other non-existent files.
        !           117: 2.75   Fixed bug in rehash.
        !           118: 2.76   Fixed bug when pattern searching in non-existent directory
        !           119:        Fixed infinite loop when awaiting failed process
        !           120:        Now wait till all subjobs finish before returning
        !           121:        make, unless a subjob fails
        !           122: 2.77   Added -z option that always forces shell invocation
        !           123:        rather than direct fork-exec
        !           124: 2.78   Check for error (-1) returned from fork
        !           125: */

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