https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66936
Bug ID: 66936
Summary: io/unix.c gratuitously uses S_IRWXG and S_IRWXO on the
basis that mkstemp() is available
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libfortran
Assignee: unassigned at gcc dot gnu.org
Reporter: keith.marshall at mailinator dot com
Target Milestone: ---
Created attachment 36013
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36013&action=edit
Kludge to work around issue for mingw32
When building GCC, with FORTRAN language support, for mingw32 with the
mingwrt-3.21+ runtime library from MinGW.org installed, the build fails in
libgfortran/io/unix.c, because the tempfile_open() function gratuitously
assumes that, if HAVE_MKSTEMP is defined, then it must invoke:
mode_mask = umask (S_IXUSR | S_IRWXG | S_IRWXO);
regardless of whether or not those access mode flags are defined. Of course,
the assumption is invalid: while S_IXUSR may have some semblance of meaning on
a windows host, and is defined, S_IRWXG and S_IRWXO are meaningless, and are
not.
Now, I can kludge around this, with the attached patch, but I suspect that it
doesn't represent a true solution.
