------- Comment #2 from burnus at gcc dot gnu dot org 2010-02-04 12:31 -------
Regarding (2): gcc/fortran/cpp.c contains the following, see PR 42954
/* FIXME: Pandora's Box
Using the macros below results in multiple breakages:
- mingw will fail to compile this file as dependent macros
assume to be used in c-cppbuiltin.c only. Further, they use
flags only valid/defined in C (same as noted above).
[config/i386/mingw32.h, config/i386/cygming.h]
- other platforms (not as popular) break similarly
[grep for 'builtin_define_with_int_value' in gcc/config/]
TARGET_CPU_CPP_BUILTINS ();
TARGET_OS_CPP_BUILTINS ();
TARGET_OBJFMT_CPP_BUILTINS (); */
Regarding (4)/(5): The NaN problems might be because we do not use
__USE_MINGW_ANSI_STDIO=1 or _POSIX
which is needed for POSIX compatible printf routines. Cf.
http://sourceforge.net/project/shownotes.php?release_id=24832
Even if it is not the issue, it presumably makes sense to define it.
--
burnus at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |42954
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42950
