https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119777
Bug ID: 119777
Summary: [15 Regression] COBOL '-fsyntax-only',
'RejectNegative'
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: cobol
Assignee: unassigned at gcc dot gnu.org
Reporter: tschwinge at gcc dot gnu.org
CC: jklowden at gcc dot gnu.org, rdubner at gcc dot gnu.org
Target Milestone: ---
I've noted this a few weeks ago, but only now getting to file a PR.
The 'gcc/cobol/lang.opt' file of commit
r15-7938-g3c5ed996ac94a15bc2929155f2c69cc85eef89f7 "COBOL: Frontend", added:
+fsyntax-only
+Cobol RejectNegative
+; Documented in c.opt
..., but the (actually "Common", not "C") existing one is, 'gcc/common.opt':
fsyntax-only
Common Var(flag_syntax_only)
Check for syntax errors, then stop.
The new 'gcc/cobol/lang.opt' one affects GCC's global option handling as
follows:
'build-gcc/gcc/optionlist':
+fsyntax-only^\Cobol RejectNegative
fsyntax-only^\Common Var(flag_syntax_only)^\Check for syntax errors, then
stop.
'build-gcc/gcc/options.cc':
/* [-[1815]-]{+[1824]+} = */ {
"-fsyntax-only",
"Check for syntax errors, then stop.",
NULL,
NULL,
NULL, NULL, N_OPTS, N_OPTS, 12, /* .neg_idx = */ [-1815,-]{+-1,+}
{+ CL_Cobol |+} CL_COMMON,
0, 0, 0, 0, 0, 0, [-0,-]{+1 /* RejectNegative */,+} 0, 0, 0, 0, 0,
offsetof (struct gcc_options, x_flag_syntax_only), 0, CLVC_INTEGER, 0,
-1, -1 },
This means, '-fno-syntax-only' is now rejected (thus "15 Regression"), even for
non-COBOL:
$ build-gcc/gcc/xgcc -Bbuild-gcc/gcc -fsyntax-only -fno-syntax-only -x c -S
/dev/null -o -
xgcc: error: unrecognized command-line option ‘-fno-syntax-only’; did you
mean ‘-fsyntax-only’?
GCC 14:
$ build-gcc/gcc/xgcc -Bbuild-gcc/gcc -fsyntax-only -fno-syntax-only -x c -S
/dev/null -o -
.file "null"
.text
.ident "GCC: (GNU) 14.1.0"
.section .note.GNU-stack,"",@progbits
I guess there's no specific reason (for COBOL only) to reject
'-fno-syntax-only'?
