Improve configure's large-file support control.
Description:
Modified configure to now attempt to add defines necessary for
supporting largefiles on all systems, instead of solely on linux. This
is in response to user requests to enable largefile support on Solaris
by default, as well as to give extra control on AIX (instead of just
jamming the necessary flag into the config files).
The old --enable-linux-lfs flag has been removed in favor of the
--enable-largefile flag (enabled by default), which can be used on all
platforms.
On systems where large files cannot be supported in this manner,
configure will report as such.
Tested:
h5committest
AIX (NCSA's blue_print machine)
duty, liberty, and linew.
When gcc is used in the AIX platform, it failed to compile tconfig.c
because it does not recognize the __int64 type. The ibm-aix has the
sizeof __int64=8 cached, as if all compilers supported this type.
Solution:
Removed the cached value for the sizeof __int64 so that during
configure, gcc can report it does not support it and not to use
it in the source code.
Tested:
NCSA Blue which is an AIX machine, using gcc or xlc compiler.
(The gcc still have failure but is being fixed as separated bugs.)
The mixed use of RUNTEST (original) and RUNTESTS (new) caused
confusion. E.g., the timings in test/ was still using the old
$RUNTEST. It made more sense to use $RUNTEST which is used
by the dejagnu feature of automake. So, I changed all
$RUNTEST or $RUNTESTS to $RUNEXEC.
config/commence.am & config/conclude.am are the two files
that got changes. Also fixed an error in test/Makefile.am.
The rest are changed by bin/reconfigure.
Tested: h5committested.
Added the xlc-* and mpcc_r-* BASENAME patterns to be recognized as IBM
compilers so that the ibm compiler options can be added properly.
This allows non-system-default compiler command names (e.g. xlc-m.n.k.l)
be recognized.
(need to figure out a better way to recognize it is an IBM compiler
and its version information.)
Tested: LLNL AIX machine.
-qmoddir=. because -qmoddir defaults to current directory already.
-static because it is not mentioned in "man xlf". Don't know it was a typo
or just an obsoleted option.
Removing both of them produced no ill or visible effects.
Tested: Up of LLNL
configure cleanup
Description
1. Removed check that disables shared libraries when pgcc is used. Apparently
they previously did not work with libtool 1.5.14 and on mir, neither of
which is in use anymore. Testing on jam and amani appear fine, so this
check is unnecessary.
2. Removed check that disables shared C++ libraries when -xarch is used to
enable 64 bit mode. We now use m64 flag to build 64 bit binaries, so
we shouldn't explicitly disable shared C++ libraries if -xarch is
discovered.
3. Removed old configure output summary section from configure.in, since
we now use the libhdf5.settings file.
4. Updated powerpc-ibm-aix5.x config file to once again put c99 flag into
H5_CFLAGS (and thus NOT get into h5cc), as decided in our dev meeting.
Tested:
h5committest
full build with pgcc on jam / amani
xlf90 and mpxlf90_r respectively. The fortran 90 compilers support
free format source files. This allows the removal of -k so that
the default compiler command is cleaner.
Tested: AIX Up at LLNL.
(Note: mpxlf90_r does not work but this could have been an undetected
old problem.)
for stream VFD. -lsocket is still used for linking, but it
is added by libtool and not by us.
Set up debug flags for Fortran.
Platforms tested: linew 32 and 64-bit.
Configure / Config File Fixes
Description:
1. Made AM_CPPFLAGS assignments in configure a bit safer. (i.e., check to
ensure include paths exist before adding them to AM_CPPFLAGS).
2. Change AIX config file to add -D_LARGE_FILES into AM_CXXFLAGS instead
of H5_CXXFLAGS (same with *_CFLAGS). This will propagate it into
h5c++, where it is needed to compile correctly.
3. Added missing line containing AM_CFLAGS to configure output summary.
Tested:
h5committest, and uP (AIX machine, via Albert).
Configure Fix
Description:
uP (AIX Machine) was failing because configure needs to see -k flag in
FCFLAGS for some checks to behave as intended. Since the config files
were switched to passing all flags into H5_FCCFLAGS, this broke this
behavior.
To allow configure to see this again, FCFLAGS and all other user flags
are saved before doing anything, and restored at the end of configure,
so if needed we can set these values in configure and/or the config/
files without (permanently) overriding or changing anything a user sets.
Also modified the powerpc-ibm-aix5.x config file to once again put -k
into FCFLAGS in addition to H5_FCFLAGS (the former of which will be
restored after configure completes the checks).
Tested:
h5committest (jam and amani finished, linew still running, though
I wanted to get this in for daily tests since it needs to be run on
uP for final verification).
CFLAGS overhaul
Description:
Modified the way configure handles CFLAGS.
(note: all changes also apply to FCFLAGS, CXXFLAGS, CPPFLAGS, and LDFLAGS).
1. The configure process will now always preserve a user's CFLAGS
environment variable setup. Any additional flags necessary for compilation
added at configure time will be passed into the Makefiles as AM_CFLAGS,
which is an automake construct to be used in addition to CFLAGS.
This will allow a user to have the final say, as CFLAGS will always appear
later in the compile line than AM_CFLAGS. Additionally, setting CFLAGS
during make will no longer completely erase all flags set by configure,
since they're maintained in AM_CFLAGS.
2. Additionally, where possible, flags previously being assigned directly
into CFLAGS (and thus propagating into h5cc) have now been redirected into
H5_CFLAGS, so they're used ONLY for compiling hdf5, and not embedded into
the h5cc wrapper script as well.
*Note that H5_CFLAGS ultimately is assigned into AM_CFLAGS for use in the
Makefiles. Complete description of changes and build process will be
included in a Configure Document that Elena and I are working on.
3. Removed unsupported config files. This includes:
config/dec-osf*
config/hpux11.00
config/irix5.x
config/powerpc-ibm-aix4.x
config/rs6000-ibm-aix5.x
config/unicos*
4. Modified configure summary to display additional values. Specifically,
appropriate AM_* variables are being shown, as well as H5_FCFLAGS and
H5_CXXFLAGS, which were for some reason not already present.
Tested:
- H5committest
- Tested on all THG / NCSA machines, using several combinations of the more
prominent configure options (c++, fortran, szip, threadsafe, parallel,
et cetera). (Thanks to Quincey for rysnc testing setup!)
- With regards to new automated testing, anything *necessary* for
compilation will be caught by the daily tests as it stands now. (i.e.,
if LDFLAGS is not properly set when szip is used, linking will fail).
Additionally, with regards to which flags get into h5cc, if any
*necessary* flags have been improperly removed, then daily tests should
fail during make installcheck. Additional machine-specific desired
behaviors and/or checks may have to be set up separately within the
daily tests, so this is something to work on.
PathScale was mistaken as the Gcc compiler such that gcc flags were added
to it but PathScale did not honor many of them. (e.g. -Wvariadic-macros,
-Wold-style-definition, -Winit-self, -Wvariadic-macros, -Wmissing-include-dirs,
-Winit-self, -Wc++-compat)
Solution:
Added a pre-condition to detect pathScale compiler before Gcc is
accepted.
Tested:
Sandia Glory where PathScale compiler is available.
gfortran is more likely installed with gcc now.
Tested:
jam and amani which covers both linux and linux64.
No h5committest because this is gnu compiler specific, usually
applicable to Linux.
