Warning options:¶

-W

enable all warnings

-Wall

enable most warnings (all except as noted below)

-Wno-<warning>

disable warning enabled by -W or -Wall

-Wno-unfinished

do not warn if unfinished features are used - ALWAYS active

-Wno-pending

do not warn if pending features are mentioned - ALWAYS active

-Wobsolete

warn if obsolete features are used

-Warchaic

warn if archaic features are used

-Wredefinition

warn incompatible redefinition of data items

-Wtruncate

warn field truncation from constant assignments

-Wpossible-truncate

warn possible field truncation - NOT set with -Wall

-Woverlap

warn overlapping MOVE items

-Wpossible-overlap

warn MOVE items that may overlap depending on variables - NOT set with -Wall

-Wparentheses

warn lack of parentheses around AND within OR

-Wstrict-typing

warn type mismatch strictly

-Wimplicit-define

warn implicitly defined data items

-Wcorresponding

warn CORRESPONDING with no matching items

-Winitial-value

warn if initial VALUE clause is ignored

-Wprototypes

warn missing FUNCTION prototypes/definitions

-Warithmetic-osvs

warn if arithmetic expression precision has changed

-Wcall-params

warn non 01/77 items for CALL params - NOT set with -Wall

-Wconstant-expression

warn expressions that always resolve to true/false

-Wcolumn-overflow

warn text after program-text area, FIXED format - NOT set with -Wall

-Wterminator

warn lack of scope terminator END-XXX - NOT set with -Wall

-Wlinkage

warn dangling LINKAGE items - NOT set with -Wall

-Wunreachable

warn likely unreachable statements - NOT set with -Wall

-Werror

treat all warnings as errors

-Werror=<warning>

treat specified <warning> as error

Compiler options:¶

-fsign=[ASCII|EBCDIC] define display sign representation

- default: machine native

-ffold-copy=[UPPER|LOWER]

fold COPY subject to value - default: no transformation

-ffold-call=[UPPER|LOWER]

fold PROGRAM-ID, CALL, CANCEL subject to value - default: no transformation

-fdefaultbyte=<value> initialize fields without VALUE to value

- decimal 0..255 or any quoted character - default: initialize to picture

-fmax-errors=<number> maximum number of errors to report

- default: 100

-fintrinsics=[ALL|intrinsic function name(,name,...)]

intrinsics to be used without FUNCTION keyword

-fno-recursive_check

disable check of recursive program call; effectively compiling as RECURSIVE program

-ftrace

generate trace code - executed SECTION/PARAGRAPH

-ftraceall

generate trace code - executed SECTION/PARAGRAPH/STATEMENTS - turned on by -debug

-fsyntax-only

syntax error checking only; don't emit any output

-fdebugging-line

enable debugging lines - 'D' in indicator column or floating >>D

-fsource-location

generate source location code - turned on by -debug/-g/-ftraceall

-fimplicit-init

automatic initialization of the COBOL runtime system

-fstack-check

PERFORM stack checking - turned on by -debug or -g

-fwrite-after

use AFTER 1 for WRITE of LINE SEQUENTIAL - default: BEFORE 1

-fmfcomment

'*' or '/' in column 1 treated as comment - FIXED format only

-facucomment

'$' in indicator area treated as '*', '|' treated as floating comment

-fnotrunc

allow numeric field overflow - non-ANSI behaviour

-fodoslide

adjust items following OCCURS DEPENDING - requires implicit/explicit relaxed syntax

-fsingle-quote

use a single quote (apostrophe) for QUOTE - default: double quote

-foptional-file

treat all files as OPTIONAL - unless NOT OPTIONAL specified

Compiler dialect configuration options:¶

-freserved-words=<value>

use of complete/fixed reserved words

-ftab-width=1..12

set number of spaces that are asumed for tabs

-ftext-column=72..255

set right margin for source (fixed format only)

-fpic-length=<number>

maximum number of characters allowed in the character-string

-fword-length=1..61

maximum word-length for COBOL words / Programmer defined words

-fliteral-length=<number>

maximum literal size in general

-fnumeric-literal-length=1..38

maximum numeric literal size

-fassign-clause=<value>

set way of interpreting ASSIGN

-fbinary-size=<value>

binary byte size - defines the allocated bytes according to PIC

-fbinary-byteorder=<value>

binary byte order

-ffilename-mapping

resolve file names at run time using environment variables.

-fpretty-display

alternate formatting of numeric fields

-fbinary-truncate

numeric truncation according to ANSI

-fcomplex-odo

allow complex OCCURS DEPENDING ON

-findirect-redefines

allow REDEFINES to other than last equal level number

-flarger-redefines-ok

allow larger REDEFINES items

-frelax-syntax-checks

allow certain syntax variations (e.g. REDEFINES position)

-frelax-level-hierarchy

allow non-matching level numbers

-fsticky-linkage

LINKAGE-SECTION items remain allocated between invocations

-fmove-ibm

MOVE operates as on IBM (left to right, byte by byte)

-fperform-osvs

exit point of any currently executing perform is recognized if reached

-farithmetic-osvs

limit precision in intermediate results to precision of final result (less accurate)

-fconstant-folding

evaluate constant expressions at compile time

-fhostsign

allow hexadecimal value 'F' for NUMERIC test of signed PACKED DECIMAL field

-fprogram-name-redefinition

program names don't lead to a reserved identifier

-faccept-update

set WITH UPDATE clause as default for ACCEPT dest-item, instead of WITH NO UPDATE

-faccept-auto

set WITH AUTO clause as default for ACCEPT dest-item, instead of WITH TAB

-fconsole-is-crt

assume CONSOLE IS CRT if not set otherwise

-fno-echo-means-secure

NO-ECHO hides input with asterisks like SECURE

-fcomment-paragraphs=<support>

comment paragraphs in IDENTIFICATION DIVISION (AUTHOR, DATE-WRITTEN, ...)

-fmemory-size-clause=<support>

MEMORY-SIZE clause

-fmultiple-file-tape-clause=<support> MULTIPLE-FILE-TAPE clause

-flabel-records-clause=<support>

LABEL-RECORDS clause

-fvalue-of-clause=<support>

VALUE-OF clause

-fdata-records-clause=<support>

DATA-RECORDS clause

-ftop-level-occurs-clause=<support>

OCCURS clause on top-level

-fsynchronized-clause=<support>

SYNCHRONIZED clause

-fgoto-statement-without-name=<support>

GOTO statement without name

-fstop-literal-statement=<support>

STOP-literal statement

-fstop-identifier-statement=<support> STOP-identifier statement

-fdebugging-mode=<support>

DEBUGGING MODE and debugging indicator

-fuse-for-debugging=<support> USE FOR DEBUGGING

-fpadding-character-clause=<support>

PADDING CHARACTER clause

-fnext-sentence-phrase=<support>

NEXT SENTENCE phrase

-flisting-statements=<support>

listing-directive statements EJECT, SKIP1, SKIP2, SKIP3

-ftitle-statement=<support>

listing-directive statement TITLE

-fentry-statement=<support>

ENTRY statement

-fmove-noninteger-to-alphanumeric=<support>

move noninteger to alphanumeric

-fmove-figurative-constant-to-numeric=<support>

move figurative constants to numeric

-fmove-figurative-quote-to-numeric=<support>

move figurative constant QUOTE to numeric

-fodo-without-to=<support>

OCCURS DEPENDING ON without to

-fsection-segments=<support>

section segments

-falter-statement=<support>

ALTER statement

-fcall-overflow=<support>

OVERFLOW clause for CALL

-fnumeric-boolean=<support>

boolean literals (B'1010')

-fhexadecimal-boolean=<support>

hexadecimal-boolean literals (BX'A')

-fnational-literals=<support> national literals (N'UTF-16 string')

-fhexadecimal-national-literals=<support>

hexadecimal-national literals (NX'265E')

-facu-literals=<support>

ACUCOBOL-GT literals (#B #O #H #X)

-fword-continuation=<support> continuation of COBOL words

-fnot-exception-before-exception=<support>

NOT ON EXCEPTION before ON EXCEPTION

-faccept-display-extensions=<support> extensions to ACCEPT and DISPLAY

-frenames-uncommon-levels=<support>

RENAMES of 01-, 66- and 77-level items

-fconstant-78=<support>

constant with level 78 item (note: has left to right precedence in expressions)

-fconstant-01=<support>

constant with level 01 CONSTANT AS/FROM item

-fprogram-prototypes=<support>

CALL/CANCEL with program-prototype-name

-freference-out-of-declaratives=<support>

references to sections not in DECLARATIVES from within DECLARATIVES

-fnumeric-value-for-edited-item=<support>

numeric literals in VALUE clause of numeric-edited items

-fincorrect-conf-sec-order=<support>

incorrect order of CONFIGURATION SECTION paragraphs

-fdefine-constant-directive=<support> allow >> DEFINE CONSTANT var AS literal

where <support> is one of the following: 'ok', 'warning', 'archaic', 'obsolete', 'skip', 'ignore', 'error', 'unconformable'

-fnot-reserved=<word>

word to be taken out of the reserved words list

-freserved=<word>

word to be added to reserved words list

-freserved=<word>:<alias>

word to be added to reserved words list as alias