https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82892
Bug ID: 82892
Summary: Spelling hints do not take into account missing
compiler options (e.g. -fopenmp)
Product: gcc
Version: 7.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: anlauf at gmx dot de
Target Milestone: ---
The nice diagnostics feature of spelling hints made me scratch my head
until I noticed that I forgot to provide the flag -fopenmp:
% cat print_openmp_version.c
#include <stdio.h>
int
main ()
{
printf ("_OPENMP = %d\n", _OPENMP);
return 0;
}
% gcc-7 print_openmp_version.c
print_openmp_version.c: In function 'main':
print_openmp_version.c:6:29: error: '_OPENMP' undeclared (first use in this
function); did you mean '_G_OPEN64'?
printf ("_OPENMP = %d\n", _OPENMP);
^~~~~~~
_G_OPEN64
print_openmp_version.c:6:29: note: each undeclared identifier is reported only
once for each function it appears in
% gcc-7 print_openmp_version.c -fopenmp
Would it make sense to extend this feature to appropriate compilation flags?
