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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.
154 lines
4.1 KiB
Bash
154 lines
4.1 KiB
Bash
# -*- shell-script -*-
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#
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# Copyright by The HDF Group.
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# Copyright by the Board of Trustees of the University of Illinois.
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# All rights reserved.
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#
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# This file is part of HDF5. The full HDF5 copyright notice, including
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# terms governing use, modification, and redistribution, is contained in
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# the files COPYING and Copyright.html. COPYING can be found at the root
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# of the source code distribution tree; Copyright.html can be found at the
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# root level of an installed copy of the electronic HDF5 document set and
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# is linked from the top-level documents page. It can also be found at
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# http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have
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# access to either file, you may request a copy from help@hdfgroup.org.
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# This file is part of the HDF5 build script. It is processed shortly
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# after configure starts and defines, among other things, flags for
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# the various compile modes.
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# Use Intel C compiler by default (if it's available).
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# Use mpicc for parallel by default.
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if test "X$CC" = "X"; then
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if test "X-$enable_parallel" = "X-yes"; then
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CC=mpicc
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CC_BASENAME=mpicc
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elif which icc > /dev/null; then
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CC=icc
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CC_BASENAME=icc
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fi
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fi
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# Define RUNPARALLEL if parallel mode is enabled or a parallel compiler used.
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if test "X-$enable_parallel" = "X-yes" -o X-$CC_BASENAME = X-mpicc; then
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RUNPARALLEL=${RUNPARALLEL="mpirun -np \$\${NPROCS:=3}"}
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fi
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#----------------------------------------------------------------------------
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# Compiler flags. The CPPFLAGS values should not include package debug
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# flags like `-DH5G_DEBUG' since these are added with the
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# `--enable-debug' switch of configure.
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case $CC_BASENAME in
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ecc|icc)
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. $srcdir/config/intel-flags
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;;
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gcc)
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. $srcdir/config/gnu-flags
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;;
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*)
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H5_CFLAGS="$H5_CFLAGS -ansi"
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DEBUG_CFLAGS="-g"
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DEBUG_CPPFLAGS=
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PROD_CFLAGS="-O"
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PROD_CPPFLAGS=
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PROFILE_CFLAGS="-pg"
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PROFILE_CPPFLAGS=
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;;
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esac
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# The default Fortran 90 compiler
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# Use Intel Fortran compiler by default.
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if test X-$enable_fortran = X-yes -a "X-$FC" = "X-"; then
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if test "X-$enable_parallel" = "X-yes"; then
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FC=mpif90
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else
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FC="ifort"
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fi
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fi
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case $FC in
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*efc|*ifort)
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# this is for efc v7. Older efc do not work with these.
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# -Vaxlib is for non-standard fortran calls like exit().
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MORE_FCFLAGS='-fpp -DDEC$=DEC_ -DMS$=MS_ -Vaxlib'
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H5_FCFLAGS="$H5_FCFLAGS $MORE_FCFLAGS"
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f9x_flags_set=yes
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;;
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*)
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f9x_flags_set=yes
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;;
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esac
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# The following is not right and need work.
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if test "X$f9x_flags_set" = "X"; then
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F9XSUFFIXFLAG=""
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FSEARCH_DIRS=""
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H5_FCFLAGS="$H5_FCFLAGS"
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DEBUG_FCFLAGS=""
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PROD_FCFLAGS=""
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PROFILE_FCFLAGS=""
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f9x_flags_set=yes
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fi
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# The Default settings for C++
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# Intel changed C++ compiler's name from "icc" to "icpc" in version 8.1
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if test -z "$CXX"; then
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CXX=icpc
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CXX_BASENAME=icpc
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fi
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# A patch to make g++ getting the default settings.
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# CXX_BASENAME should have been set in configure.
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if test "X$CXX" = "Xg++"; then
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CXX_BASENAME=g++
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fi
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case $CXX_BASENAME in
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ecc|icc) # Intel compilers
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# Default to C99 standard.
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H5_CXXFLAGS="${H5_CXXFLAGS:--std=c99}"
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DEBUG_CXXFLAGS="-g -w2 -Wall"
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DEBUG_CPPFLAGS=
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PROD_CXXFLAGS="" #Default optimization O2 is used
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PROD_CPPFLAGS=
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PROFILE_CXXFLAGS="-pg"
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PROFILE_CPPFLAGS=
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;;
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g++)
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H5_CXXFLAGS="$H5_CXXFLAGS -Wsign-compare" #Only works for some versions
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DEBUG_CXXFLAGS="-g -fverbose-asm"
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DEBUG_CPPFLAGS=
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PROD_CXXFLAGS="-O3 -fomit-frame-pointer"
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PROD_CPPFLAGS=
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PROFILE_CXXFLAGS="-pg"
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PROFILE_CPPFLAGS=
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;;
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*)
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# Default to C99 standard.
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H5_CXXFLAGS="${H5_CXXFLAGS:--std=c99}"
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DEBUG_CXXFLAGS="-g"
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DEBUG_CPPFLAGS=
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PROD_CXXFLAGS="-O"
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PROD_CPPFLAGS=
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PROFILE_CXXFLAGS="-pg"
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PROFILE_CPPFLAGS=
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;;
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esac
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# Check MPICH settings
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. $srcdir/config/mpich
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#Uncomment the next line if your system doesn't support MPI complex derived datatype.
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#hdf5_mpi_complex_derived_datatype_works=${hdf5_mpi_complex_derived_datatype_works='no'}
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#Comment out the following line if your system supports collective IO when some processes
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#don't have any contributions to IOs.
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hdf5_mpi_special_collective_io_works=${hdf5_mpi_special_collective_io_works='no'}
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