https://bugs.llvm.org/show_bug.cgi?id=46021
Bug ID: 46021
Summary: flang --help should document external compiler
requirement and F18_FC
Product: flang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
Assignee: unassignedb...@nondot.org
Reporter: ba...@mcs.anl.gov
CC: david.tr...@arm.com, jper...@nvidia.com,
kirankuma...@gmail.com, llvm-bugs@lists.llvm.org,
sscalp...@nvidia.com
Currently flang automatically invokes pgf90 - and fails if not found
[balay@pj01 junk]$ flang sizeof-ftn.f
execvp(pgf90) failed: No such file or directory
Perhaps this external compiler requirement should be documented in --help -
with the suggestion to use 'export F18_FC=gfortran' to switch to gfortran?
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