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f0ecd71307
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.
140 lines
3.9 KiB
Plaintext
140 lines
3.9 KiB
Plaintext
dnl -------------------------------------------------------------------------
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dnl -------------------------------------------------------------------------
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dnl
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dnl Copyright by the Board of Trustees of the University of Illinois.
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dnl All rights reserved.
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dnl
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dnl This file is part of HDF5. The full HDF5 copyright notice, including
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dnl terms governing use, modification, and redistribution, is contained in
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dnl the files COPYING and Copyright.html. COPYING can be found at the root
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dnl of the source code distribution tree; Copyright.html can be found at the
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dnl root level of an installed copy of the electronic HDF5 document set and
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dnl is linked from the top-level documents page. It can also be found at
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dnl http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have
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dnl access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu.
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dnl
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dnl Macros for HDF5 Fortran
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dnl
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dnl -------------------------------------------------------------------------
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dnl -------------------------------------------------------------------------
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dnl -------------------------------------------------------------------------
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dnl _AC_SYS_LARGEFILE_MACRO_VALUE
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dnl
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dnl The following macro overrides the autoconf macro of the same name
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dnl with this custom definition. This macro performs the same checks as
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dnl autoconf's native _AC_SYS_LARGEFILE_MACRO_VALUE, but will also set
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dnl AM_CPPFLAGS with the appropriate -D defines so additional configure
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dnl sizeof checks do not fail.
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dnl
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# _AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE,
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# CACHE-VAR,
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# DESCRIPTION,
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# PROLOGUE, [FUNCTION-BODY])
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# ----------------------------------------------------------
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m4_define([_AC_SYS_LARGEFILE_MACRO_VALUE],
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[AC_CACHE_CHECK([for $1 value needed for large files], [$3],
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[while :; do
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m4_ifval([$6], [AC_LINK_IFELSE], [AC_COMPILE_IFELSE])(
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[AC_LANG_PROGRAM([$5], [$6])],
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[$3=no; break])
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m4_ifval([$6], [AC_LINK_IFELSE], [AC_COMPILE_IFELSE])(
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[AC_LANG_PROGRAM([@%:@define $1 $2
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$5], [$6])],
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[$3=$2; break])
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$3=unknown
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break
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done])
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case $$3 in #(
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no | unknown) ;;
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*) AC_DEFINE_UNQUOTED([$1], [$$3], [$4])
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AM_CPPFLAGS="-D$1=$$3 $AM_CPPFLAGS";;
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esac
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rm -rf conftest*[]dnl
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])# _AC_SYS_LARGEFILE_MACRO_VALUE
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dnl -------------------------------------------------------------------------
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dnl AC_F9X_MODS()
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dnl
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dnl Check how F9X handles modules. This macro also checks which
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dnl command-line option to use to include the module once it's built.
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dnl
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AC_DEFUN(AC_F9X_MODS,
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[AC_MSG_CHECKING(what $FC does with modules)
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AC_LANG_PUSH(Fortran)
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test -d conftestdir || mkdir conftestdir
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cd conftestdir
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rm -rf *
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cat >conftest.$ac_ext <<EOF
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module module
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integer foo
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end module module
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EOF
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eval $ac_compile
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modfiles=""
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F9XMODEXT=""
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for f in conftest.o module.mod MODULE.mod module.M MODULE.M; do
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if test -f "$f" ; then
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modfiles="$f"
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case "$f" in
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*.o) F9XMODEXT="o" ;;
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*.mod) F9XMODEXT="mod" ;;
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*.M) F9XMODEXT="M" ;;
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esac
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fi
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done
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echo $modfiles 6>&1
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if test "$modfiles" = file.o; then
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echo $ac_n "checking whether $FC -em is saner""... $ac_c" 1>&6
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OLD_FCFLAGS=$FCFLAGS
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FCFLAGS="$FCFLAGS -em"
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eval $ac_compile
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modfiles=""
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for f in file.o module.mod MODULE.mod module.M MODULE.M; do
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test -f $f && modfiles="$f"
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done
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if test "$modfiles" = "file.o"; then
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FCFLAGS=$OLD_FCFLAGS
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echo no 6>&1
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else
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echo yes 6>&1
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fi
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fi
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cd ..
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AC_MSG_CHECKING(how $FC finds modules)
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for flag in "-I" "-M" "-p"; do
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cat >conftest.$ac_ext <<EOF
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program conftest
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use module
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end program conftest
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EOF
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ac_compile='${FC-f90} $FCFLAGS ${flag}conftestdir -c conftest.$ac_ext 1>&AS_MESSAGE_LOG_FD'
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if AC_TRY_EVAL(ac_compile); then
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F9XMODFLAG=$flag
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break
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fi
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done
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if test -n "$F9XMODFLAG"; then
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echo $F9XMODFLAG 1>&6
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FCFLAGS="$F9XMODFLAG. $FCFLAGS"
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else
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echo unknown 1>&6
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fi
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AC_SUBST(F9XMODFLAG)
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AC_SUBST(F9XMODEXT)
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rm -rf conftest*
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AC_LANG_POP(Fortran)
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])
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