# This file is part of Autoconf. -*- Autoconf -*- # Fortran languages support. # Copyright (C) 2001, 2003-2011 Free Software Foundation, Inc. # This file is part of Autoconf. This program is free # software; you can redistribute it and/or modify it under the # terms of the GNU General Public License as published by the # Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # Under Section 7 of GPL version 3, you are granted additional # permissions described in the Autoconf Configure Script Exception, # version 3.0, as published by the Free Software Foundation. # # You should have received a copy of the GNU General Public License # and a copy of the Autoconf Configure Script Exception along with # this program; see the files COPYINGv3 and COPYING.EXCEPTION # respectively. If not, see . # Written by David MacKenzie, with help from # Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, # Roland McGrath, Noah Friedman, david d zuhn, and many others. # Table of Contents: # # Preamble # # 0. Utility macros # # 1. Language selection # and routines to produce programs in a given language. # # 2. Producing programs in a given language. # # 3. Looking for a compiler # And possibly the associated preprocessor. # # 4. Compilers' characteristics. # AC_FC_PP_SRCEXT(EXT, [ACTION-IF-SUCCESS], [ACTION-IF-FAILURE]) # -------------------------------------------------------------- # Like AC_FC_SRCEXT, set the source-code extension used in Fortran (FC) tests # to EXT (which defaults to f). Also, look for any necessary additional # FCFLAGS needed to allow this extension for preprocessed Fortran, and store # them in the output variable FCFLAGS_ (e.g. FCFLAGS_f90 for EXT=f90). # If successful, call ACTION-IF-SUCCESS. If unable to compile preprocessed # source code with EXT, call ACTION-IF-FAILURE, which defaults to failing with # an error message. # # Some compilers allow preprocessing with either a Fortran preprocessor or # with the C preprocessor (cpp). Prefer the Fortran preprocessor, to deal # correctly with continuation lines, `//' (not a comment), and preserve white # space (for fixed form). # # (The flags for the current source-code extension, if any, are stored in # $ac_fcflags_srcext and used automatically in subsequent autoconf tests.) # # For ordinary extensions like f90, etcetera, the modified FCFLAGS # are needed for IBM's xlf*. Also, for Intel's ifort compiler, the # $FCFLAGS_ variable *must* go immediately before the source file on the # command line, unlike other $FCFLAGS. Ugh. # # Known extensions that enable preprocessing by default, and flags to force it: # GNU: .F .F90 .F95 .F03 .F08, -cpp for most others, # -x f77-cpp-input for .f77 .F77; -x f95-cpp-input for gfortran < 4.4 # SGI: .F .F90, -ftpp or -cpp for .f .f90, -E write preproc to stdout # -macro_expand enable macro expansion everywhere (with -ftpp) # -P preproc only, save in .i, no #line's # SUN: .F .F95, -fpp for others; -xpp={fpp,cpp} for preprocessor selection # -F preprocess only (save in lowercase extension) # IBM: .F .F77 .F90 .F95 .F03, -qsuffix=cpp=EXT for extension .EXT to invoke cpp # -WF,-qnofpp -WF,-qfpp=comment:linecont:nocomment:nolinecont # -WF,-qlanglvl=classic or not -qnoescape (trigraph problems) # -d no #line in output, -qnoobject for preprocessing only (output in .f) # -q{no,}ppsuborigarg substitute original macro args before expansion # HP: .F, +cpp={yes|no|default} use cpp, -cpp, +cpp_keep save in .i/.i90 # PGI: -Mpreprocess # Absoft: .F .FOR .F90 .F95, -cpp for others # Cray: .F .F90 .FTN, -e Z for others; -F enable macro expansion everywhere # Intel: .F .F90, -fpp for others, but except for .f and .f90, -Tf may also be # needed right before the source file name # PathScale: .F .F90 .F95, -ftpp or -cpp for .f .f90 .f95 # -macro_expand for expansion everywhere, -P for no #line in output # Lahey: .F .FOR .F90 .F95, -Cpp # NAGWare: .F .F90 .F95, .ff .ff90 .ff95 (new), -fpp for others # Compaq/Tru64: .F .F90, -cpp, -P keep .i file, -P keep .i file # f2c: .F, -cpp # g95: .F .FOR .F90 .F95 .F03, -cpp -no-cpp, -E for stdout AC_DEFUN([AC_FC_PP_SRCEXT], [AC_LANG_PUSH(Fortran)dnl AC_CACHE_CHECK([for Fortran flag to compile preprocessed .$1 files], ac_cv_fc_pp_srcext_$1, [ac_ext=$1 ac_fcflags_pp_srcext_save=$ac_fcflags_srcext ac_fcflags_srcext= ac_cv_fc_pp_srcext_$1=unknown case $ac_ext in #( [[fF]]77) ac_try=f77-cpp-input;; #( *) ac_try=f95-cpp-input;; esac for ac_flag in none -ftpp -fpp -Tf "-fpp -Tf" -xpp=fpp -Mpreprocess "-e Z" \ -cpp -xpp=cpp -qsuffix=cpp=$1 "-x $ac_try" +cpp -Cpp; do test "x$ac_flag" != xnone && ac_fcflags_srcext="$ac_flag" AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[ #if 0 #include choke me #endif]])], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[ #if 1 #include choke me #endif]])], [], [ac_cv_fc_pp_srcext_$1=$ac_flag; break])]) done rm -f conftest.$ac_objext conftest.$1 ac_fcflags_srcext=$ac_fcflags_pp_srcext_save ]) if test "x$ac_cv_fc_pp_srcext_$1" = xunknown; then m4_default([$3], [AC_MSG_ERROR([Fortran could not compile preprocessed .$1 files])]) else ac_fc_srcext=$1 if test "x$ac_cv_fc_pp_srcext_$1" = xnone; then ac_fcflags_srcext="" FCFLAGS_[]$1[]="" else ac_fcflags_srcext=$ac_cv_fc_pp_srcext_$1 FCFLAGS_[]$1[]=$ac_cv_fc_pp_srcext_$1 fi AC_SUBST(FCFLAGS_[]$1) $2 fi AC_LANG_POP(Fortran)dnl ])# AC_FC_PP_SRCEXT # AC_FC_PP_DEFINE([ACTION-IF-SUCCESS], [ACTION-IF-FAILURE = FAILURE]) # ------------------------------------------------------------------- # Find a flag to specify defines for preprocessed Fortran. Not all # Fortran compilers use -D. Substitute FC_DEFINE with the result and # call ACTION-IF-SUCCESS (defaults to nothing) if successful, and # ACTION-IF-FAILURE (defaults to failing with an error message) if not. # # Known flags: # IBM: -WF,-D # Lahey/Fujitsu: -Wp,-D older versions??? # f2c: -D or -Wc,-D # others: -D AC_DEFUN([AC_FC_PP_DEFINE], [AC_LANG_PUSH([Fortran])dnl ac_fc_pp_define_srcext_save=$ac_fc_srcext AC_FC_PP_SRCEXT([F]) AC_CACHE_CHECK([how to define symbols for preprocessed Fortran], [ac_cv_fc_pp_define], [ac_fc_pp_define_srcext_save=$ac_fc_srcext ac_cv_fc_pp_define=unknown ac_fc_pp_define_FCFLAGS_save=$FCFLAGS for ac_flag in -D -WF,-D -Wp,-D -Wc,-D do FCFLAGS="$ac_fc_pp_define_FCFLAGS_save ${ac_flag}FOOBAR ${ac_flag}ZORK=42" AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[ #ifndef FOOBAR choke me #endif #if ZORK != 42 choke me #endif]])], [ac_cv_fc_pp_define=$ac_flag]) test x"$ac_cv_fc_pp_define" != xunknown && break done FCFLAGS=$ac_fc_pp_define_FCFLAGS_save ]) ac_fc_srcext=$ac_fc_pp_define_srcext_save if test "x$ac_cv_fc_pp_define" = xunknown; then FC_DEFINE= m4_default([$2], [AC_MSG_ERROR([Fortran does not allow to define preprocessor symbols], 77)]) else FC_DEFINE=$ac_cv_fc_pp_define $1 fi AC_SUBST([FC_DEFINE])dnl AC_LANG_POP([Fortran])dnl ]) # AC_FC_FREEFORM([ACTION-IF-SUCCESS], [ACTION-IF-FAILURE = FAILURE]) # ------------------------------------------------------------------ # Look for a compiler flag to make the Fortran (FC) compiler accept # free-format source code, and adds it to FCFLAGS. Call # ACTION-IF-SUCCESS (defaults to nothing) if successful (i.e. can # compile code using new extension) and ACTION-IF-FAILURE (defaults to # failing with an error message) if not. (Defined via DEFUN_ONCE to # prevent flag from being added to FCFLAGS multiple times.) # # The known flags are: # -ffree-form: GNU g77, gfortran, g95 # -FR, -free: Intel compiler (icc, ecc, ifort) # -free: Compaq compiler (fort), Sun compiler (f95) # -qfree: IBM compiler (xlf) # -Mfree, -Mfreeform: Portland Group compiler # -freeform: SGI compiler # -8, -f free: Absoft Fortran # +source=free: HP Fortran # (-)-nfix, -Free: Lahey/Fujitsu Fortran # -free: NAGWare # -f, -Wf,-f: f2c (but only a weak form of "free-form" and long lines) # We try to test the "more popular" flags first, by some prejudiced # notion of popularity. AC_DEFUN_ONCE([AC_FC_FREEFORM], [AC_LANG_PUSH([Fortran])dnl AC_CACHE_CHECK([for Fortran flag needed to accept free-form source], [ac_cv_fc_freeform], [ac_cv_fc_freeform=unknown ac_fc_freeform_FCFLAGS_save=$FCFLAGS for ac_flag in none -ffree-form -FR -free -qfree -Mfree -Mfreeform \ -freeform "-f free" -8 +source=free -nfix --nfix -Free do test "x$ac_flag" != xnone && FCFLAGS="$ac_fc_freeform_FCFLAGS_save $ac_flag" dnl Use @&t@ below to ensure that editors don't turn 8+ spaces into tab. AC_COMPILE_IFELSE([[ program freeform ! FIXME: how to best confuse non-freeform compilers? print *, 'Hello ', & @&t@ 'world.' end]], [ac_cv_fc_freeform=$ac_flag; break]) done rm -f conftest.err conftest.$ac_objext conftest.$ac_ext FCFLAGS=$ac_fc_freeform_FCFLAGS_save ]) if test "x$ac_cv_fc_freeform" = xunknown; then m4_default([$2], [AC_MSG_ERROR([Fortran does not accept free-form source], 77)]) else if test "x$ac_cv_fc_freeform" != xnone; then FCFLAGS="$FCFLAGS $ac_cv_fc_freeform" fi $1 fi AC_LANG_POP([Fortran])dnl ])# AC_FC_FREEFORM # AC_FC_FIXEDFORM([ACTION-IF-SUCCESS], [ACTION-IF-FAILURE = FAILURE]) # ------------------------------------------------------------------ # Look for a compiler flag to make the Fortran (FC) compiler accept # fixed-format source code, and adds it to FCFLAGS. Call # ACTION-IF-SUCCESS (defaults to nothing) if successful (i.e. can # compile code using new extension) and ACTION-IF-FAILURE (defaults to # failing with an error message) if not. (Defined via DEFUN_ONCE to # prevent flag from being added to FCFLAGS multiple times.) # # The known flags are: # -ffixed-form: GNU g77, gfortran, g95 # -fixed: Intel compiler (ifort), Sun compiler (f95) # -qfixed: IBM compiler (xlf*) # -Mfixed: Portland Group compiler # -fixedform: SGI compiler # -f fixed: Absoft Fortran # +source=fixed: HP Fortran # (-)-fix, -Fixed: Lahey/Fujitsu Fortran # -fixed: NAGWare # Since compilers may accept fixed form based on file name extension, # but users may want to use it with others as well, call AC_FC_SRCEXT # with the respective source extension before calling this macro. AC_DEFUN_ONCE([AC_FC_FIXEDFORM], [AC_LANG_PUSH([Fortran])dnl AC_CACHE_CHECK([for Fortran flag needed to accept fixed-form source], [ac_cv_fc_fixedform], [ac_cv_fc_fixedform=unknown ac_fc_fixedform_FCFLAGS_save=$FCFLAGS for ac_flag in none -ffixed-form -fixed -qfixed -Mfixed -fixedform "-f fixed" \ +source=fixed -fix --fix -Fixed do test "x$ac_flag" != xnone && FCFLAGS="$ac_fc_fixedform_FCFLAGS_save $ac_flag" AC_COMPILE_IFELSE([[ C This comment should confuse free-form compilers. program main end]], [ac_cv_fc_fixedform=$ac_flag; break]) done rm -f conftest.err conftest.$ac_objext conftest.$ac_ext FCFLAGS=$ac_fc_fixedform_FCFLAGS_save ]) if test "x$ac_cv_fc_fixedform" = xunknown; then m4_default([$2], [AC_MSG_ERROR([Fortran does not accept fixed-form source], 77)]) else if test "x$ac_cv_fc_fixedform" != xnone; then FCFLAGS="$FCFLAGS $ac_cv_fc_fixedform" fi $1 fi AC_LANG_POP([Fortran])dnl ])# AC_FC_FIXEDFORM # AC_FC_LINE_LENGTH([LENGTH], [ACTION-IF-SUCCESS], # [ACTION-IF-FAILURE = FAILURE]) # ------------------------------------------------ # Look for a compiler flag to make the Fortran (FC) compiler accept long lines # in the current (free- or fixed-format) source code, and adds it to FCFLAGS. # The optional LENGTH may be 80, 132 (default), or `unlimited' for longer # lines. Note that line lengths above 254 columns are not portable, and some # compilers (hello ifort) do not accept more than 132 columns at least for # fixed format. Call ACTION-IF-SUCCESS (defaults to nothing) if successful # (i.e. can compile code using new extension) and ACTION-IF-FAILURE (defaults # to failing with an error message) if not. (Defined via DEFUN_ONCE to # prevent flag from being added to FCFLAGS multiple times.) # You should call AC_FC_FREEFORM or AC_FC_FIXEDFORM to set the desired format # prior to using this macro. # # The known flags are: # -f{free,fixed}-line-length-N with N 72, 80, 132, or 0 or none for none. # -ffree-line-length-none: GNU gfortran # -ffree-line-length-huge: g95 (also -ffixed-line-length-N as above) # -qfixed=132 80 72: IBM compiler (xlf) # -Mextend: Cray # -132 -80 -72: Intel compiler (ifort) # Needs to come before -extend_source because ifort # accepts that as well with an optional parameter and # doesn't fail but only warns about unknown arguments. # -extend_source: SGI compiler # -W, -WNN (132, 80, 72): Absoft Fortran # +es, +extend_source: HP Fortran (254 in either form, default is 72 fixed, # 132 free) # -w, (-)-wide: Lahey/Fujitsu Fortran (255 cols in fixed form) # -e: Sun Fortran compiler (132 characters) # -132: NAGWare # -72, -f, -Wf,-f: f2c (a weak form of "free-form" and long lines). # /XLine: Open Watcom AC_DEFUN_ONCE([AC_FC_LINE_LENGTH], [AC_LANG_PUSH([Fortran])dnl m4_case(m4_default([$1], [132]), [unlimited], [ac_fc_line_len_string=unlimited ac_fc_line_len=0 ac_fc_line_length_test=' subroutine longer_than_132(arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,'\ 'arg9,arg10,arg11,arg12,arg13,arg14,arg15,arg16,arg17,arg18,arg19)'], [132], [ac_fc_line_len=132 ac_fc_line_length_test=' subroutine longer_than_80(arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,'\ 'arg10)'], [80], [ac_fc_line_len=80 ac_fc_line_length_test=' subroutine longer_than_72(arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9)'], [m4_warning([Invalid length argument `$1'])]) : ${ac_fc_line_len_string=$ac_fc_line_len} AC_CACHE_CHECK( [for Fortran flag needed to accept $ac_fc_line_len_string column source lines], [ac_cv_fc_line_length], [ac_cv_fc_line_length=unknown ac_fc_line_length_FCFLAGS_save=$FCFLAGS for ac_flag in none \ -ffree-line-length-none -ffixed-line-length-none \ -ffree-line-length-huge \ -ffree-line-length-$ac_fc_line_len \ -ffixed-line-length-$ac_fc_line_len \ -qfixed=$ac_fc_line_len -Mextend \ -$ac_fc_line_len -extend_source \ -W$ac_fc_line_len -W +extend_source +es -wide --wide -w -e \ -f -Wf,-f -xline do test "x$ac_flag" != xnone && FCFLAGS="$ac_fc_line_length_FCFLAGS_save $ac_flag" AC_COMPILE_IFELSE([[$ac_fc_line_length_test end subroutine]], [ac_cv_fc_line_length=$ac_flag; break]) done rm -f conftest.err conftest.$ac_objext conftest.$ac_ext FCFLAGS=$ac_fc_line_length_FCFLAGS_save ]) if test "x$ac_cv_fc_line_length" = xunknown; then m4_default([$3], [AC_MSG_ERROR([Fortran does not accept long source lines], 77)]) else if test "x$ac_cv_fc_line_length" != xnone; then FCFLAGS="$FCFLAGS $ac_cv_fc_line_length" fi $2 fi AC_LANG_POP([Fortran])dnl ])# AC_FC_LINE_LENGTH # AC_FC_CHECK_BOUNDS([ACTION-IF-SUCCESS], [ACTION-IF-FAILURE = FAILURE]) # ---------------------------------------------------------------------- # Look for a compiler flag to turn on array bounds checking for the # Fortran (FC) compiler, and adds it to FCFLAGS. Call # ACTION-IF-SUCCESS (defaults to nothing) if successful (i.e. can # compile code using new extension) and ACTION-IF-FAILURE (defaults to # failing with an error message) if not. (Defined via DEFUN_ONCE to # prevent flag from being added to FCFLAGS multiple times.) # # The known flags are: # -fcheck=all, -fbounds-check: gfortran # -fbounds-check: g77, g95 # -CB, -check bounds: Intel compiler (icc, ecc, ifort) # -C: Sun/Oracle compiler (f95) # -C, -qcheck: IBM compiler (xlf) # -Mbounds: Portland Group compiler # -C ,-Mbounds: Cray # -C, -check_bounds: SGI compiler # -check_bounds, +check=all: HP Fortran # -C, -Rb -Rc: Absoft (-Rb: array boundaries, -Rc: array conformance) # --chk e,s -chk (e,s): Lahey # -C -C=all: NAGWare # -C, -ffortran-bounds-check: PathScale pathf90 # -C: f2c # -BOunds: Open Watcom AC_DEFUN_ONCE([AC_FC_CHECK_BOUNDS], [AC_LANG_PUSH([Fortran])dnl AC_CACHE_CHECK([for Fortran flag to enable array-bounds checking], [ac_cv_fc_check_bounds], [ac_cv_fc_check_bounds=unknown ac_fc_check_bounds_FCFLAGS_save=$FCFLAGS for ac_flag in -fcheck=bounds -fbounds-check -check_bounds -Mbounds -qcheck \ '-check bounds' +check=all --check '-Rb -Rc' -CB -C=all -C \ -ffortran-bounds-check "--chk e,s" "-chk e -chk s" -bounds do FCFLAGS="$ac_fc_check_bounds_FCFLAGS_save $ac_flag" # We should be able to link a correct program. AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [AC_LINK_IFELSE([[ subroutine sub(a) integer a(:) a(8) = 0 end subroutine program main integer a(1:7) interface subroutine sub(a) integer a(:) end subroutine end interface call sub(a) end program]], [# If we can run the program, require failure at run time. # In cross-compiling mode, we rely on the compiler not accepting # unknown options. AS_IF([test "$cross_compiling" = yes], [ac_cv_fc_check_bounds=$ac_flag; break], [AS_IF([_AC_DO_TOKENS(./conftest$ac_exeext)], [], [ac_cv_fc_check_bounds=$ac_flag; break])])])]) done rm -f conftest$ac_exeext conftest.err conftest.$ac_objext conftest.$ac_ext FCFLAGS=$ac_fc_check_bounds_FCFLAGS_save ]) if test "x$ac_cv_fc_check_bounds" = xunknown; then m4_default([$2], [AC_MSG_ERROR([no Fortran flag for bounds checking found], 77)]) else if test "x$ac_cv_fc_check_bounds" != xnone; then FCFLAGS="$FCFLAGS $ac_cv_fc_check_bounds" fi $1 fi AC_LANG_POP([Fortran])dnl ])# AC_FC_CHECK_BOUNDS # _AC_FC_IMPLICIT_NONE([ACTION-IF-SUCCESS], [ACTION-IF-FAILURE = FAILURE]) # ------------------------------------------------------------------------ # Look for a flag to disallow implicit declarations, and add it to FCFLAGS. # Call ACTION-IF-SUCCESS (defaults to nothing) if successful and # ACTION-IF-FAILURE (defaults to failing with an error message) if not. # # Known flags: # GNU gfortran, g95: -fimplicit-none, g77: -Wimplicit # Intel: -u, -implicitnone; might also need '-warn errors' to turn into error. # Sun/Oracle: -u # HP: +implicit_none # IBM: -u, -qundef # SGI: -u # Compaq: -u, -warn declarations # NAGWare: -u # Lahey: -in, --in, -AT # Cray: -Mdclchk -e I # PGI: -Mcdlchk # f2c: -u AC_DEFUN([_AC_FC_IMPLICIT_NONE], [_AC_FORTRAN_ASSERT()dnl AC_CACHE_CHECK([for flag to disallow _AC_LANG implicit declarations], [ac_cv_[]_AC_LANG_ABBREV[]_implicit_none], [ac_cv_[]_AC_LANG_ABBREV[]_implicit_none=unknown ac_fc_implicit_none_[]_AC_LANG_PREFIX[]FLAGS_save=$[]_AC_LANG_PREFIX[]FLAGS for ac_flag in none -fimplicit-none -u -Wimplicit -implicitnone +implicit_none \ -qundef "-warn declarations" -in --in -AT "-e I" -Mdclchk \ "-u -warn errors" do if test "x$ac_flag" != xnone; then _AC_LANG_PREFIX[]FLAGS="$ac_fc_implicit_none_[]_AC_LANG_PREFIX[]FLAGS_save $ac_flag" fi AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[ i = 0 print *, i]])], [], [ac_cv_[]_AC_LANG_ABBREV[]_implicit_none=$ac_flag; break])]) done rm -f conftest.err conftest.$ac_objext conftest.$ac_ext _AC_LANG_PREFIX[]FLAGS=$ac_fc_implicit_none_[]_AC_LANG_PREFIX[]FLAGS_save ]) if test "x$ac_cv_[]_AC_LANG_ABBREV[]_implicit_none" = xunknown; then m4_default([$3], [AC_MSG_ERROR([no Fortran flag to disallow implicit declarations found], 77)]) else if test "x$ac_cv_[]_AC_LANG_ABBREV[]_implicit_none" != xnone; then _AC_LANG_PREFIX[]FLAGS="$_AC_LANG_PREFIX[]FLAGS $ac_cv_[]_AC_LANG_ABBREV[]_implicit_none" fi $2 fi ])# _AC_FC_IMPLICIT_NONE # AC_F77_IMPLICIT_NONE([ACTION-IF-SUCCESS], [ACTION-IF-FAILURE = FAILURE]) # ------------------------------------------------------------------------ AC_DEFUN([AC_F77_IMPLICIT_NONE], [AC_LANG_PUSH([Fortran 77])dnl _AC_FC_IMPLICIT_NONE($@) AC_LANG_POP([Fortran 77])dnl ])# AC_F77_IMPLICIT_NONE # AC_FC_IMPLICIT_NONE([ACTION-IF-SUCCESS], [ACTION-IF-FAILURE = FAILURE]) # ----------------------------------------------------------------------- AC_DEFUN([AC_FC_IMPLICIT_NONE], [AC_LANG_PUSH([Fortran])dnl _AC_FC_IMPLICIT_NONE($@) AC_LANG_POP([Fortran])dnl ])# AC_FC_IMPLICIT_NONE # AC_FC_MODULE_EXTENSION # ---------------------- # Find the Fortran 90 module file extension. The module extension is stored # in the variable FC_MODEXT and empty if it cannot be determined. The result # or "unknown" is cached in the cache variable ac_cv_fc_module_ext. AC_DEFUN([AC_FC_MODULE_EXTENSION], [AC_CACHE_CHECK([Fortran 90 module extension], [ac_cv_fc_module_ext], [AC_LANG_PUSH(Fortran) mkdir conftest.dir cd conftest.dir ac_cv_fc_module_ext=unknown AC_COMPILE_IFELSE([[ module conftest_module contains subroutine conftest_routine write(*,'(a)') 'gotcha!' end subroutine end module]], [ac_cv_fc_module_ext=`ls | sed -n 's,conftest_module\.,,p'` if test x$ac_cv_fc_module_ext = x; then dnl Some F90 compilers use upper case characters for the module file name. ac_cv_fc_module_ext=`ls | sed -n 's,CONFTEST_MODULE\.,,p'` fi]) cd .. rm -rf conftest.dir AC_LANG_POP(Fortran) ]) FC_MODEXT=$ac_cv_fc_module_ext if test "$FC_MODEXT" = unknown; then FC_MODEXT= fi AC_SUBST([FC_MODEXT])dnl ]) # AC_FC_MODULE_FLAG([ACTION-IF-SUCCESS], [ACTION-IF-FAILURE = FAILURE]) # --------------------------------------------------------------------- # Find a flag to include Fortran 90 modules from another directory. # If successful, run ACTION-IF-SUCCESS (defaults to nothing), otherwise # run ACTION-IF-FAILURE (defaults to failing with an error message). # The module flag is cached in the ac_cv_fc_module_flag variable. # It may contain significant trailing whitespace. # # Known flags: # gfortran: -Idir, -I dir (-M dir, -Mdir (deprecated), -Jdir for writing) # g95: -I dir (-fmod=dir for writing) # SUN: -Mdir, -M dir (-moddir=dir for writing; # -Idir for includes is also searched) # HP: -Idir, -I dir (+moddir=dir for writing) # IBM: -Idir (-qmoddir=dir for writing) # Intel: -Idir -I dir (-mod dir for writing) # Absoft: -pdir # Lahey: -Idir (-Mdir or -mod dir for writing) # Cray: -module dir, -p dir (-J dir for writing) # -e m is needed to enable writing .mod files at all # Compaq: -Idir # NAGWare: -I dir # PathScale: -I dir (but -module dir is looked at first) # Portland: -module dir (first -module also names dir for writing) # Fujitsu: -Am -Idir (-Mdir for writing is searched first, then '.', then -I) # (-Am indicates how module information is saved) AC_DEFUN([AC_FC_MODULE_FLAG],[ AC_CACHE_CHECK([Fortran 90 module inclusion flag], [ac_cv_fc_module_flag], [AC_LANG_PUSH([Fortran]) ac_cv_fc_module_flag=unknown mkdir conftest.dir cd conftest.dir AC_COMPILE_IFELSE([[ module conftest_module contains subroutine conftest_routine write(*,'(a)') 'gotcha!' end subroutine end module]], # For Lahey -M will also write module and object files to that directory # make it read-only so that lahey fails over to -I [chmod -w . cd .. ac_fc_module_flag_FCFLAGS_save=$FCFLAGS # Flag ordering is significant for gfortran and Sun. for ac_flag in -M -I '-I ' '-M ' -p '-mod ' '-module ' '-Am -I'; do # Add the flag twice to prevent matching an output flag. FCFLAGS="$ac_fc_module_flag_FCFLAGS_save ${ac_flag}conftest.dir ${ac_flag}conftest.dir" AC_COMPILE_IFELSE([[ module conftest_main use conftest_module contains subroutine conftest call conftest_routine end subroutine end module]], [ac_cv_fc_module_flag="$ac_flag"]) if test "$ac_cv_fc_module_flag" != unknown; then break fi done FCFLAGS=$ac_fc_module_flag_FCFLAGS_save ]) chmod +w conftest.dir rm -rf conftest.dir AC_LANG_POP([Fortran]) ]) if test "$ac_cv_fc_module_flag" != unknown; then FC_MODINC=$ac_cv_fc_module_flag $1 else FC_MODINC= m4_default([$2], [AC_MSG_ERROR([unable to find compiler flag for module search path])]) fi AC_SUBST([FC_MODINC]) # Ensure trailing whitespace is preserved in a Makefile. AC_SUBST([ac_empty], [""]) AC_CONFIG_COMMANDS_PRE([case $FC_MODINC in #( *\ ) FC_MODINC=$FC_MODINC'${ac_empty}' ;; esac])dnl ]) # AC_FC_MODULE_OUTPUT_FLAG([ACTION-IF-SUCCESS], [ACTION-IF-FAILURE = FAILURE]) # ---------------------------------------------------------------------------- # Find a flag to write Fortran 90 module information to another directory. # If successful, run ACTION-IF-SUCCESS (defaults to nothing), otherwise # run ACTION-IF-FAILURE (defaults to failing with an error message). # The module flag is cached in the ac_cv_fc_module_output_flag variable. # It may contain significant trailing whitespace. # # For known flags, see the documentation of AC_FC_MODULE_FLAG above. AC_DEFUN([AC_FC_MODULE_OUTPUT_FLAG],[ AC_CACHE_CHECK([Fortran 90 module output flag], [ac_cv_fc_module_output_flag], [AC_LANG_PUSH([Fortran]) mkdir conftest.dir conftest.dir/sub cd conftest.dir ac_cv_fc_module_output_flag=unknown ac_fc_module_output_flag_FCFLAGS_save=$FCFLAGS # Flag ordering is significant: put flags late which some compilers use # for the search path. for ac_flag in -J '-J ' -fmod= -moddir= +moddir= -qmoddir= '-mod ' \ '-module ' -M '-Am -M' '-e m -J '; do FCFLAGS="$ac_fc_module_output_flag_FCFLAGS_save ${ac_flag}sub" AC_COMPILE_IFELSE([[ module conftest_module contains subroutine conftest_routine write(*,'(a)') 'gotcha!' end subroutine end module]], [cd sub AC_COMPILE_IFELSE([[ program main use conftest_module call conftest_routine end program]], [ac_cv_fc_module_output_flag="$ac_flag"]) cd .. if test "$ac_cv_fc_module_output_flag" != unknown; then break fi]) done FCFLAGS=$ac_fc_module_output_flag_FCFLAGS_save cd .. rm -rf conftest.dir AC_LANG_POP([Fortran]) ]) if test "$ac_cv_fc_module_output_flag" != unknown; then FC_MODOUT=$ac_cv_fc_module_output_flag $1 else FC_MODOUT= m4_default([$2], [AC_MSG_ERROR([unable to find compiler flag to write module information to])]) fi AC_SUBST([FC_MODOUT]) # Ensure trailing whitespace is preserved in a Makefile. AC_SUBST([ac_empty], [""]) AC_CONFIG_COMMANDS_PRE([case $FC_MODOUT in #( *\ ) FC_MODOUT=$FC_MODOUT'${ac_empty}' ;; esac])dnl ]) # _AC_FC_LIBRARY_LDFLAGS # ---------------------- # # Determine the linker flags (e.g. "-L" and "-l") for the Fortran # intrinsic and runtime libraries that are required to successfully # link a Fortran program or shared library. The output variable # FLIBS/FCLIBS is set to these flags. # # This macro is intended to be used in those situations when it is # necessary to mix, e.g. C++ and Fortran, source code into a single # program or shared library. # # For example, if object files from a C++ and Fortran compiler must # be linked together, then the C++ compiler/linker must be used for # linking (since special C++-ish things need to happen at link time # like calling global constructors, instantiating templates, enabling # exception support, etc.). # # However, the Fortran intrinsic and runtime libraries must be # linked in as well, but the C++ compiler/linker doesn't know how to # add these Fortran libraries. Hence, the macro # "AC_F77_LIBRARY_LDFLAGS" was created to determine these Fortran # libraries. # # This macro was packaged in its current form by Matthew D. Langston. # However, nearly all of this macro came from the "OCTAVE_FLIBS" macro # in "octave-2.0.13/aclocal.m4", and full credit should go to John # W. Eaton for writing this extremely useful macro. Thank you John. AC_DEFUN([_AC_FC_LIBRARY_LDFLAGS], [_AC_FORTRAN_ASSERT()dnl _AC_PROG_FC_V AC_CACHE_CHECK([for _AC_LANG libraries of $[]_AC_FC[]], ac_cv_[]_AC_LANG_ABBREV[]_libs, [if test "x$[]_AC_LANG_PREFIX[]LIBS" != "x"; then ac_cv_[]_AC_LANG_ABBREV[]_libs="$[]_AC_LANG_PREFIX[]LIBS" # Let the user override the test. else _AC_PROG_FC_V_OUTPUT ac_cv_[]_AC_LANG_ABBREV[]_libs= # Save positional arguments (if any) ac_save_positional="$[@]" set X $ac_[]_AC_LANG_ABBREV[]_v_output while test $[@%:@] != 1; do shift ac_arg=$[1] case $ac_arg in [[\\/]]*.a | ?:[[\\/]]*.a) _AC_LIST_MEMBER_IF($ac_arg, $ac_cv_[]_AC_LANG_ABBREV[]_libs, , ac_cv_[]_AC_LANG_ABBREV[]_libs="$ac_cv_[]_AC_LANG_ABBREV[]_libs $ac_arg") ;; -bI:*) _AC_LIST_MEMBER_IF($ac_arg, $ac_cv_[]_AC_LANG_ABBREV[]_libs, , [_AC_LINKER_OPTION([$ac_arg], ac_cv_[]_AC_LANG_ABBREV[]_libs)]) ;; # Ignore these flags. -lang* | -lcrt*.o | -lc | -lgcc* | -lSystem | -libmil | -little \ |-LANG:=* | -LIST:* | -LNO:* | -link | -list | -lnuma ) ;; -lkernel32) test x"$CYGWIN" != xyes && ac_cv_[]_AC_LANG_ABBREV[]_libs="$ac_cv_[]_AC_LANG_ABBREV[]_libs $ac_arg" ;; -[[LRuYz]]) # These flags, when seen by themselves, take an argument. # We remove the space between option and argument and re-iterate # unless we find an empty arg or a new option (starting with -) case $[2] in "" | -*);; *) ac_arg="$ac_arg$[2]" shift; shift set X $ac_arg "$[@]" ;; esac ;; -YP,*) for ac_j in `AS_ECHO(["$ac_arg"]) | sed -e 's/-YP,/-L/;s/:/ -L/g'`; do _AC_LIST_MEMBER_IF($ac_j, $ac_cv_[]_AC_LANG_ABBREV[]_libs, , [ac_arg="$ac_arg $ac_j" ac_cv_[]_AC_LANG_ABBREV[]_libs="$ac_cv_[]_AC_LANG_ABBREV[]_libs $ac_j"]) done ;; -[[lLR]]*) _AC_LIST_MEMBER_IF($ac_arg, $ac_cv_[]_AC_LANG_ABBREV[]_libs, , ac_cv_[]_AC_LANG_ABBREV[]_libs="$ac_cv_[]_AC_LANG_ABBREV[]_libs $ac_arg") ;; -zallextract*| -zdefaultextract) ac_cv_[]_AC_LANG_ABBREV[]_libs="$ac_cv_[]_AC_LANG_ABBREV[]_libs $ac_arg" ;; # Ignore everything else. esac done # restore positional arguments set X $ac_save_positional; shift # We only consider "LD_RUN_PATH" on Solaris systems. If this is seen, # then we insist that the "run path" must be an absolute path (i.e. it # must begin with a "/"). case `(uname -sr) 2>/dev/null` in "SunOS 5"*) ac_ld_run_path=`AS_ECHO(["$ac_[]_AC_LANG_ABBREV[]_v_output"]) | sed -n 's,^.*LD_RUN_PATH *= *\(/[[^ ]]*\).*$,-R\1,p'` test "x$ac_ld_run_path" != x && _AC_LINKER_OPTION([$ac_ld_run_path], ac_cv_[]_AC_LANG_ABBREV[]_libs) ;; esac fi # test "x$[]_AC_LANG_PREFIX[]LIBS" = "x" ]) []_AC_LANG_PREFIX[]LIBS="$ac_cv_[]_AC_LANG_ABBREV[]_libs" AC_SUBST([]_AC_LANG_PREFIX[]LIBS) ])# _AC_FC_LIBRARY_LDFLAGS # AC_F77_LIBRARY_LDFLAGS # ---------------------- AC_DEFUN([AC_F77_LIBRARY_LDFLAGS], [AC_REQUIRE([AC_PROG_F77])dnl AC_LANG_PUSH(Fortran 77)dnl _AC_FC_LIBRARY_LDFLAGS AC_LANG_POP(Fortran 77)dnl ])# AC_F77_LIBRARY_LDFLAGS # AC_FC_LIBRARY_LDFLAGS # --------------------- AC_DEFUN([AC_FC_LIBRARY_LDFLAGS], [AC_REQUIRE([AC_PROG_FC])dnl AC_LANG_PUSH(Fortran)dnl _AC_FC_LIBRARY_LDFLAGS AC_LANG_POP(Fortran)dnl ])# AC_FC_LIBRARY_LDFLAGS