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|
dnl PAC_PROG_F77 - reprioritize the F77 compiler search order
AC_DEFUN([PAC_PROG_F77],[
PAC_PUSH_FLAG([FFLAGS])
AC_PROG_F77([ifort pgf77 af77 xlf frt cf77 fort77 fl32 fort ifc efc ftn gfortran f77 g77])
PAC_POP_FLAG([FFLAGS])
])
dnl
dnl/*D
dnl PAC_PROG_F77_NAME_MANGLE - Determine how the Fortran compiler mangles
dnl names
dnl
dnl Synopsis:
dnl PAC_PROG_F77_NAME_MANGLE([action])
dnl
dnl Output Effect:
dnl If no action is specified, one of the following names is defined:
dnl.vb
dnl If fortran names are mapped:
dnl lower -> lower F77_NAME_LOWER
dnl lower -> lower_ F77_NAME_LOWER_USCORE
dnl lower -> UPPER F77_NAME_UPPER
dnl lower_lower -> lower__ F77_NAME_LOWER_2USCORE
dnl mixed -> mixed F77_NAME_MIXED
dnl mixed -> mixed_ F77_NAME_MIXED_USCORE
dnl mixed -> UPPER@STACK_SIZE F77_NAME_UPPER_STDCALL
dnl.ve
dnl If an action is specified, it is executed instead.
dnl
dnl Notes:
dnl We assume that if lower -> lower (any underscore), upper -> upper with the
dnl same underscore behavior. Previous versions did this by
dnl compiling a Fortran program and running strings -a over it. Depending on
dnl strings is a bad idea, so instead we try compiling and linking with a
dnl C program, since that is why we are doing this anyway. A similar approach
dnl is used by FFTW, though without some of the cases we check (specifically,
dnl mixed name mangling). STD_CALL not only specifies a particular name
dnl mangling convention (adding the size of the calling stack into the function
dnl name, but also the stack management convention (callee cleans the stack,
dnl and arguments are pushed onto the stack from right to left)
dnl
dnl One additional problem is that some Fortran implementations include
dnl references to the runtime (like pgf90_compiled for the pgf90 compiler
dnl used as the "Fortran 77" compiler). This is not yet solved.
dnl
dnl D*/
dnl
AC_DEFUN([PAC_PROG_F77_NAME_MANGLE],[
AC_CACHE_CHECK([for Fortran 77 name mangling],
pac_cv_prog_f77_name_mangle,
[
# Check for strange behavior of Fortran. For example, some FreeBSD
# systems use f2c to implement f77, and the version of f2c that they
# use generates TWO (!!!) trailing underscores
# Currently, WDEF is not used but could be...
#
# Eventually, we want to be able to override the choices here and
# force a particular form. This is particularly useful in systems
# where a Fortran compiler option is used to force a particular
# external name format (rs6000 xlf, for example).
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat > conftest.f <<EOF
subroutine MY_name( i )
return
end
EOF
# This is the ac_compile line used if LANG_FORTRAN77 is selected
if test "X$ac_fcompile" = "X" ; then
ac_fcompile='${F77-f77} -c $FFLAGS conftest.f 1>&AC_FD_CC'
fi
if AC_TRY_EVAL(ac_fcompile) && test -s conftest.o ; then
mv conftest.o fconftestf.o
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.f >&AC_FD_CC
fi
AC_LANG_SAVE
AC_LANG_C
save_LIBS="$LIBS"
dnl FLIBS comes from AC_F77_LIBRARY_LDFLAGS
LIBS="fconftestf.o $FLIBS $LIBS"
AC_TRY_LINK([extern void my_name(int);],my_name(0);,pac_cv_prog_f77_name_mangle="lower")
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
AC_TRY_LINK([extern void my_name_(int);],my_name_(0);,pac_cv_prog_f77_name_mangle="lower underscore")
fi
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
AC_TRY_LINK([void __stdcall MY_NAME(int);],MY_NAME(0);,pac_cv_prog_f77_name_mangle="upper stdcall")
fi
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
AC_TRY_LINK([extern void MY_NAME(int);],MY_NAME(0);,pac_cv_prog_f77_name_mangle="upper")
fi
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
AC_TRY_LINK([extern void my_name__(int);],my_name__(0);,
pac_cv_prog_f77_name_mangle="lower doubleunderscore")
fi
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
AC_TRY_LINK([extern void MY_name(int);],MY_name(0);,pac_cv_prog_f77_name_mangle="mixed")
fi
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
AC_TRY_LINK([extern void MY_name_(int);],MY_name_(0);,pac_cv_prog_f77_name_mangle="mixed underscore")
fi
LIBS="$save_LIBS"
AC_LANG_RESTORE
# If we got to this point, it may be that the programs have to be
# linked with the Fortran, not the C, compiler. Try reversing
# the language used for the test
dnl Note that the definition of AC_TRY_LINK and AC_LANG_PROGRAM
dnl is broken in autoconf and will generate spurious warning messages
dnl To fix this, we use
dnl AC _LINK_IFELSE([AC _LANG_PROGRAM(,[[body]])],action-if-true)
dnl instead of AC _TRY_LINK(,body,action-if-true)
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
AC_LANG_SAVE
AC_LANG_FORTRAN77
save_LIBS="$LIBS"
LIBS="conftestc.o $LIBS"
if test "X$ac_ccompile" = "X" ; then
ac_ccompile='${CC-cc} -c $CFLAGS conftest.c 1>&AC_FD_CC'
fi
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat > conftest.c <<EOF
void my_name( int a ) { }
EOF
if AC_TRY_EVAL(ac_ccompile) && test -s conftest.o ; then
mv conftest.o conftestc.o
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.c >&AC_FD_CC
fi
AC_LINK_IFELSE([AC_LANG_PROGRAM(,[[ call my_name(0)]])],
pac_cv_prog_f77_name_mangle="lower")
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat > conftest.c <<EOF
void my_name_(int a) { }
EOF
if AC_TRY_EVAL(ac_ccompile) && test -s conftest.o ; then
mv conftest.o conftestc.o
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.c >&AC_FD_CC
fi
AC_LINK_IFELSE([AC_LANG_PROGRAM(,[[ call my_name(0)]])],
pac_cv_prog_f77_name_mangle="lower underscore")
fi
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat >conftest.c <<EOF
void __stdcall MY_NAME(int a) {}
EOF
if AC_TRY_EVAL(ac_ccompile) && test -s conftest.o ; then
mv conftest.o conftestc.o
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.c >&AC_FD_CC
fi
AC_LINK_IFELSE([AC_LANG_PROGRAM(,[[ call my_name(0)]])],
pac_cv_prog_f77_name_mangle="upper stdcall")
fi
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat >conftest.c <<EOF
void MY_NAME(int a) {}
EOF
if AC_TRY_EVAL(ac_ccompile) && test -s conftest.o ; then
mv conftest.o conftestc.o
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.c >&AC_FD_CC
fi
AC_LINK_IFELSE([AC_LANG_PROGRAM(,[[ call MY_NAME(0)]])],
pac_cv_prog_f77_name_mangle="upper")
fi
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat >conftest.c <<EOF
void my_name__(int a) {}
EOF
if AC_TRY_EVAL(ac_ccompile) && test -s conftest.o ; then
mv conftest.o conftestc.o
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.c >&AC_FD_CC
fi
AC_LINK_IFELSE([AC_LANG_PROGRAM(,[[ call my_name(0)]])],
pac_cv_prog_f77_name_mangle="lower doubleunderscore")
fi
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat >conftest.c <<EOF
void MY_name(int a) {}
EOF
if AC_TRY_EVAL(ac_ccompile) && test -s conftest.o ; then
mv conftest.o conftestc.o
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.c >&AC_FD_CC
fi
AC_LINK_IFELSE([AC_LANG_PROGRAM(,[[ call MY_name(0)]])],
pac_cv_prog_f77_name_mangle="mixed")
fi
if test "X$pac_cv_prog_f77_name_mangle" = "X" ; then
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat >conftest.c <<EOF
void MY_name_(int a) {}
EOF
if AC_TRY_EVAL(ac_ccompile) && test -s conftest.o ; then
mv conftest.o conftestc.o
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.c >&AC_FD_CC
fi
AC_LINK_IFELSE([AC_LANG_PROGRAM(,[[ call MY_name(0)]])],
pac_cv_prog_f77_name_mangle="mixed underscore")
fi
LIBS="$save_LIBS"
AC_LANG_RESTORE
fi
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f fconftest*
])
# Make the actual definition
pac_namecheck=`echo X$pac_cv_prog_f77_name_mangle | sed 's/ /-/g'`
ifelse([$1],,[
pac_cv_test_stdcall=""
case $pac_namecheck in
X) AC_MSG_WARN([Cannot determine Fortran naming scheme]) ;;
Xlower) AC_DEFINE(F77_NAME_LOWER,1,[Define if Fortran names are lowercase])
F77_NAME_MANGLE="F77_NAME_LOWER"
;;
Xlower-underscore) AC_DEFINE(F77_NAME_LOWER_USCORE,1,[Define if Fortran names are lowercase with a trailing underscore])
F77_NAME_MANGLE="F77_NAME_LOWER_USCORE"
;;
Xlower-doubleunderscore) AC_DEFINE(F77_NAME_LOWER_2USCORE,1,[Define if Fortran names containing an underscore have two trailing underscores])
F77_NAME_MANGLE="F77_NAME_LOWER_2USCORE"
;;
Xupper) AC_DEFINE(F77_NAME_UPPER,1,[Define if Fortran names are uppercase])
F77_NAME_MANGLE="F77_NAME_UPPER"
;;
Xmixed) AC_DEFINE(F77_NAME_MIXED,1,[Define if Fortran names preserve the original case])
F77_NAME_MANGLE="F77_NAME_MIXED"
;;
Xmixed-underscore) AC_DEFINE(F77_NAME_MIXED_USCORE,1,[Define if Fortran names preserve the original case and add a trailing underscore])
F77_NAME_MANGLE="F77_NAME_MIXED_USCORE"
;;
Xupper-stdcall) AC_DEFINE(F77_NAME_UPPER,1,[Define if Fortran names are uppercase])
F77_NAME_MANGLE="F77_NAME_UPPER_STDCALL"
pac_cv_test_stdcall="__stdcall"
;;
*) AC_MSG_WARN([Unknown Fortran naming scheme]) ;;
esac
AC_SUBST(F77_NAME_MANGLE)
# Get the standard call definition
# FIXME: This should use F77_STDCALL, not STDCALL (non-conforming name)
if test "X$pac_cv_test_stdcall" = "X" ; then
F77_STDCALL=""
else
F77_STDCALL="__stdcall"
fi
#
AC_DEFINE_UNQUOTED(STDCALL,$F77_STDCALL,[Define calling convention])
],[$1])
])
dnl
dnl/*D
dnl PAC_PROG_F77_CHECK_SIZEOF - Determine the size in bytes of a Fortran
dnl type
dnl
dnl Synopsis:
dnl PAC_PROG_F77_CHECK_SIZEOF(type,[cross-size])
dnl
dnl Output Effect:
dnl Sets SIZEOF_F77_uctype to the size if bytes of type.
dnl If type is unknown, the size is set to 0.
dnl If cross-compiling, the value cross-size is used (it may be a variable)
dnl For example 'PAC_PROG_F77_CHECK_SIZEOF(real)' defines
dnl 'SIZEOF_F77_REAL' to 4 on most systems. The variable
dnl 'pac_cv_sizeof_f77_<type>' (e.g., 'pac_cv_sizeof_f77_real') is also set to
dnl the size of the type.
dnl If the corresponding variable is already set, that value is used.
dnl If the name has an '*' in it (e.g., 'integer*4'), the defined name
dnl replaces that with an underscore (e.g., 'SIZEOF_F77_INTEGER_4').
dnl
dnl Notes:
dnl If the 'cross-size' argument is not given, 'autoconf' will issue an error
dnl message. You can use '0' to specify undetermined.
dnl
dnl D*/
AC_DEFUN([PAC_PROG_F77_CHECK_SIZEOF],[
changequote(<<, >>)dnl
dnl The name to #define.
dnl If the arg value contains a variable, we need to update that
define(<<PAC_TYPE_NAME>>, translit(sizeof_f77_$1, [a-z *], [A-Z__]))dnl
dnl The cache variable name.
define(<<PAC_CV_NAME>>, translit(pac_cv_f77_sizeof_$1, [ *], [__]))dnl
changequote([, ])dnl
AC_CACHE_CHECK([for size of Fortran type $1],PAC_CV_NAME,[
AC_REQUIRE([PAC_PROG_F77_NAME_MANGLE])
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat <<EOF > conftest.f
subroutine isize( )
$1 i(2)
call cisize( i(1), i(2) )
end
EOF
if test "X$ac_fcompile" = "X" ; then
ac_fcompile='${F77-f77} -c $FFLAGS conftest.f 1>&AC_FD_CC'
fi
if AC_TRY_EVAL(ac_fcompile) && test -s conftest.o ; then
mv conftest.o conftestf.o
AC_LANG_SAVE
AC_LANG_C
save_LIBS="$LIBS"
dnl Add the Fortran linking libraries
LIBS="conftestf.o $FLIBS $LIBS"
AC_TRY_RUN([#include <stdio.h>
#ifdef F77_NAME_UPPER
#define cisize_ CISIZE
#define isize_ ISIZE
#elif defined(F77_NAME_LOWER) || defined(F77_NAME_MIXED)
#define cisize_ cisize
#define isize_ isize
#endif
static int isize_val=0;
void cisize_(char *,char*);
void isize_(void);
void cisize_(char *i1p, char *i2p)
{
isize_val = (int)(i2p - i1p);
}
int main(int argc, char **argv)
{
FILE *f = fopen("conftestval", "w");
if (!f) return 1;
isize_();
fprintf(f,"%d\n", isize_val );
return 0;
}], eval PAC_CV_NAME=`cat conftestval`,eval PAC_CV_NAME=0,
ifelse([$2],,,eval PAC_CV_NAME=$2))
# Problem. If the process fails to run, then there won't be
# a good error message. For example, with one Portland Group
# installation, we had problems with finding the libpgc.so shared library
# The autoconf code for TRY_RUN doesn't capture the output from
# the test program (!)
LIBS="$save_LIBS"
AC_LANG_RESTORE
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.f >&AC_FD_CC
ifelse([$2],,eval PAC_CV_NAME=0,eval PAC_CV_NAME=$2)
fi
])
AC_DEFINE_UNQUOTED(PAC_TYPE_NAME,$PAC_CV_NAME,[Define size of PAC_TYPE_NAME])
undefine([PAC_TYPE_NAME])
undefine([PAC_CV_NAME])
])
dnl
dnl This version uses a Fortran program to link programs.
dnl This is necessary because some compilers provide shared libraries
dnl that are not within the default linker paths (e.g., our installation
dnl of the Portland Group compilers)
dnl
AC_DEFUN([PAC_PROG_F77_CHECK_SIZEOF_EXT],[
changequote(<<,>>)dnl
dnl The name to #define.
dnl If the arg value contains a variable, we need to update that
define(<<PAC_TYPE_NAME>>, translit(sizeof_f77_$1, [a-z *], [A-Z__]))dnl
dnl The cache variable name.
define(<<PAC_CV_NAME>>, translit(pac_cv_f77_sizeof_$1, [ *], [__]))dnl
changequote([,])dnl
AC_CACHE_CHECK([for size of Fortran type $1],PAC_CV_NAME,[
AC_REQUIRE([PAC_PROG_F77_NAME_MANGLE])
if test "$cross_compiling" = yes ; then
ifelse([$2],,[AC_MSG_WARN([No value provided for size of $1 when cross-compiling])]
,eval PAC_CV_NAME=$2)
else
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat <<EOF > conftestc.c
#include <stdio.h>
#include "confdefs.h"
#ifdef F77_NAME_UPPER
#define cisize_ CISIZE
#define isize_ ISIZE
#elif defined(F77_NAME_LOWER) || defined(F77_NAME_MIXED)
#define cisize_ cisize
#define isize_ isize
#endif
int cisize_(char *,char*);
int cisize_(char *i1p, char *i2p)
{
int isize_val=0;
FILE *f = fopen("conftestval", "w");
if (!f) return 1;
isize_val = (int)(i2p - i1p);
fprintf(f,"%d\n", isize_val );
fclose(f);
return 0;
}
EOF
pac_tmp_compile='$CC -c $CFLAGS $CPPFLAGS conftestc.c >&5'
if AC_TRY_EVAL(pac_tmp_compile) && test -s conftestc.o ; then
AC_LANG_SAVE
AC_LANG_FORTRAN77
saveLIBS=$LIBS
LIBS="conftestc.o $LIBS"
dnl TRY_RUN does not work correctly for autoconf 2.13 (the
dnl macro includes C-preprocessor directives that are not
dnl valid in Fortran. Instead, we do this by hand
cat >conftest.f <<EOF
program main
$1 a(2)
integer irc
irc = cisize(a(1),a(2))
end
EOF
rm -f conftest$ac_exeext
rm -f conftestval
if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext ; then
if ./conftest$ac_exeext ; then
# success
:
else
# failure
:
fi
else
# failure
AC_MSG_WARN([Unable to build program to determine size of $1])
fi
LIBS=$saveLIBS
AC_LANG_RESTORE
if test -s conftestval ; then
eval PAC_CV_NAME=`cat conftestval`
else
eval PAC_CV_NAME=0
fi
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
else
AC_MSG_WARN([Unable to compile the C routine for finding the size of a $1])
fi
fi # cross-compiling
])
AC_DEFINE_UNQUOTED(PAC_TYPE_NAME,$PAC_CV_NAME,[Define size of PAC_TYPE_NAME])
undefine([PAC_TYPE_NAME])
undefine([PAC_CV_NAME])
])
dnl
dnl/*D
dnl PAC_PROG_F77_EXCLAIM_COMMENTS
dnl
dnl Synopsis:
dnl PAC_PROG_F77_EXCLAIM_COMMENTS([action-if-true],[action-if-false])
dnl
dnl Notes:
dnl Check whether '!' may be used to begin comments in Fortran.
dnl
dnl This macro requires a version of autoconf `after` 2.13; the 'acgeneral.m4'
dnl file contains an error in the handling of Fortran programs in
dnl 'AC_TRY_COMPILE' (fixed in our local version).
dnl
dnl D*/
AC_DEFUN([PAC_PROG_F77_EXCLAIM_COMMENTS],[
AC_CACHE_CHECK([whether Fortran accepts ! for comments],
pac_cv_prog_f77_exclaim_comments,[
AC_LANG_SAVE
AC_LANG_FORTRAN77
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[! This is a comment])],
pac_cv_prog_f77_exclaim_comments="yes",
pac_cv_prog_f77_exclaim_comments="no")
AC_LANG_RESTORE
])
if test "$pac_cv_prog_f77_exclaim_comments" = "yes" ; then
ifelse([$1],,:,$1)
else
ifelse([$2],,:,$2)
fi
])dnl
dnl
dnl/*D
dnl PAC_F77_CHECK_COMPILER_OPTION - Check that a compiler option is accepted
dnl without warning messages
dnl
dnl Synopsis:
dnl PAC_F77_CHECK_COMPILER_OPTION(optionname,action-if-ok,action-if-fail)
dnl
dnl Output Effects:
dnl
dnl If no actions are specified, a working value is added to 'FOPTIONS'
dnl
dnl Notes:
dnl This is now careful to check that the output is different, since
dnl some compilers are noisy.
dnl
dnl We are extra careful to prototype the functions in case compiler options
dnl that complain about poor code are in effect.
dnl
dnl Because this is a long script, we have ensured that you can pass a
dnl variable containing the option name as the first argument.
dnl D*/
AC_DEFUN([PAC_F77_CHECK_COMPILER_OPTION],[
AC_MSG_CHECKING([whether Fortran 77 compiler accepts option $1])
ac_result="no"
save_FFLAGS="$FFLAGS"
FFLAGS="$1 $FFLAGS"
rm -f conftest.out
cat >conftest2.f <<EOF
subroutine try()
end
EOF
cat >conftest.f <<EOF
program main
end
EOF
dnl It is important to use the AC_TRY_EVAL in case F77 is not a single word
dnl but is something like "f77 -64" (where the switch has changed the
dnl compiler)
ac_fscompilelink='${F77-f77} $save_FFLAGS -o conftest conftest.f $LDFLAGS >conftest.bas 2>&1'
ac_fscompilelink2='${F77-f77} $FFLAGS -o conftest conftest.f $LDFLAGS >conftest.out 2>&1'
if AC_TRY_EVAL(ac_fscompilelink) && test -x conftest ; then
if AC_TRY_EVAL(ac_fscompilelink2) && test -x conftest ; then
if diff -b conftest.out conftest.bas >/dev/null 2>&1 ; then
AC_MSG_RESULT(yes)
AC_MSG_CHECKING([whether routines compiled with $1 can be linked with ones compiled without $1])
rm -f conftest2.out
rm -f conftest.bas
ac_fscompile3='${F77-f77} -c $save_FFLAGS conftest2.f >conftest2.out 2>&1'
ac_fscompilelink4='${F77-f77} $FFLAGS -o conftest conftest2.o conftest.f $LDFLAGS >conftest.bas 2>&1'
if AC_TRY_EVAL(ac_fscompile3) && test -s conftest2.o ; then
if AC_TRY_EVAL(ac_fscompilelink4) && test -x conftest ; then
if diff -b conftest.out conftest.bas >/dev/null 2>&1 ; then
ac_result="yes"
else
echo "configure: Compiler output differed in two cases" >&AC_FD_CC
diff -b conftest.out conftest.bas >&AC_FD_CC
fi
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.f >&AC_FD_CC
fi
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest2.f >&AC_FD_CC
fi
else
# diff
echo "configure: Compiler output differed in two cases" >&AC_FD_CC
diff -b conftest.out conftest.bas >&AC_FD_CC
fi
else
# try_eval(fscompilelink2)
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.f >&AC_FD_CC
fi
if test "$ac_result" != "yes" -a -s conftest.out ; then
cat conftest.out >&AC_FD_CC
fi
else
# Could not compile without the option!
echo "configure: Could not compile program" >&AC_FD_CC
cat conftest.f >&AC_FD_CC
cat conftest.bas >&AC_FD_CC
fi
# Restore FFLAGS before 2nd/3rd argument commands are executed,
# as 2nd/3rd argument command could be modifying FFLAGS.
FFLAGS="$save_FFLAGS"
if test "$ac_result" = "yes" ; then
AC_MSG_RESULT(yes)
ifelse($2,,FOPTIONS="$FOPTIONS $1",$2)
else
AC_MSG_RESULT(no)
$3
fi
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
])
dnl/*D
dnl PAC_PROG_F77_CMDARGS - Determine how to access the command line from
dnl Fortran 77
dnl
dnl Output Effects:
dnl The following variables are set:
dnl.vb
dnl F77_GETARG - Statement to get an argument i into string s
dnl F77_IARGC - Routine to return the number of arguments
dnl FXX_MODULE - Module command when using Fortran 90 compiler
dnl F77_GETARGDECL - Declaration of routine used for F77_GETARG
dnl F77_GETARG_FFLAGS - Flags needed when compiling/linking
dnl F77_GETARG_LDFLAGS - Flags needed when linking
dnl.ve
dnl If 'F77_GETARG' has a value, then that value and the values for these
dnl other symbols will be used instead. If no approach is found, all of these
dnl variables will have empty values.
dnl If no other approach works and a file 'f77argdef' is in the directory,
dnl that file will be sourced for the values of the above four variables.
dnl
dnl In most cases, you should add F77_GETARG_FFLAGS to the FFLAGS variable
dnl and F77_GETARG_LDFLAGS to the LDFLAGS variable, to ensure that tests are
dnl performed on the compiler version that will be used.
dnl
dnl 'AC_SUBST' is called for all six variables.
dnl
dnl One complication is that on systems with multiple Fortran compilers,
dnl some libraries used by one Fortran compiler may have been (mis)placed
dnl in a common location. We have had trouble with libg2c in particular.
dnl To work around this, we test whether iargc etc. work first. This
dnl will catch most systems and will speed up the tests.
dnl
dnl Next, the libraries are only added if they are needed to complete a
dnl link; they aren''t added just because they exist.
dnl
dnl f77argdef
dnl D*/
dnl
dnl Random notes
dnl You can export the command line arguments from C to the g77 compiler
dnl using
dnl extern char **__libc_argv;
dnl extern int __libc_argc;
dnl f_setarg( __libc_argc, __libc_argv );
dnl
AC_DEFUN([PAC_PROG_F77_CMDARGS],[
found_cached="yes"
AC_MSG_CHECKING([for routines to access the command line from Fortran 77])
AC_CACHE_VAL(pac_cv_prog_f77_cmdarg,
[
AC_MSG_RESULT([searching...])
found_cached="no"
# First, we perform a quick check. Does iargc and getarg work?
fxx_module="${FXX_MODULE:-}"
f77_getargdecl="${F77_GETARGDECL:-external getarg}"
f77_getarg="${F77_GETARG:-call GETARG(i,s)}"
f77_iargc="${F77_IARGC:-IARGC()}"
#
# Grumble. The Absoft Fortran compiler computes i - i as 0 and then
# 1.0 / 0 at compile time, even though the code may never be executed.
# What we need is a way to generate an error, so the second usage of i
# was replaced with f77_iargc.
cat > conftest.f <<EOF
program main
$fxx_module
integer i, j
character*20 s
$f77_getargdecl
i = 0
$f77_getarg
i=$f77_iargc
if (i .gt. 1) then
j = i - $f77_iargc
j = 1.0 / j
endif
end
EOF
found_answer="no"
if test -z "$ac_fcompilelink" ; then
ac_fcompilelink="${F77-f77} -o conftest $FFLAGS $flags conftest.f $LDFLAGS $LIBS 1>&AC_FD_CC"
fi
AC_MSG_CHECKING([whether ${F77-f77} $flags $libs works with GETARG and IARGC])
if AC_TRY_EVAL(ac_fcompilelink) && test -x conftest ; then
# Check that cross != yes so that this works with autoconf 2.52
# Check that cross_compiling != yes so that this works with
# autoconf 2.6x for some (but almost certainly not all)x
# Question: why do we test that this runs? It looks like we
# needed this for some old Fortran compilers that produced
# executable code that then did not run.
if test "$ac_cv_prog_f77_cross" != "yes" -a \
"$cross_compiling" != "yes" ; then
if ./conftest >/dev/null 2>&1 ; then
found_answer="yes"
FXX_MODULE="$fxx_module"
F77_GETARGDECL="$f77_getargdecl"
F77_GETARG="$f77_getarg"
F77_IARGC="$f77_iargc"
AC_MSG_RESULT(yes)
fi
fi
fi
if test $found_answer = "no" ; then
AC_MSG_RESULT(no)
# Grumph. Here are a bunch of different approaches
# We have several axes the check:
# Library to link with (none, -lU77 (HPUX), -lg2c (LINUX f77))
# PEPCF90 (Intel ifc)
# The first line is a dummy
# (we experimented with using a <space>, but this caused other
# problems because we need <space> in the IFS)
trial_LIBS="0 -lU77 -lPEPCF90"
if test "$NOG2C" != "1" ; then
trial_LIBS="$trial_LIBS -lg2c"
fi
# Discard libs that are not availble:
save_IFS="$IFS"
# Make sure that IFS includes a space, or the tests that run programs
# may fail
IFS=" ""
"
save_trial_LIBS="$trial_LIBS"
trial_LIBS=""
cat > conftest.f <<EOF
program main
end
EOF
ac_fcompilelink_test='${F77-f77} -o conftest $FFLAGS conftest.f $LDFLAGS $libs $LIBS 1>&AC_FD_CC'
for libs in $save_trial_LIBS ; do
if test "$libs" = "0" ; then
lib_ok="yes"
else
AC_MSG_CHECKING([whether Fortran 77 links with $libs])
if AC_TRY_EVAL(ac_fcompilelink_test) && test -x conftest ; then
AC_MSG_RESULT([yes])
lib_ok="yes"
else
AC_MSG_RESULT([no])
lib_ok="no"
fi
fi
if test "$lib_ok" = "yes" ; then
trial_LIBS="$trial_LIBS
$libs"
fi
done
# Options to use when compiling and linking
# +U77 is needed by HP Fortran to access getarg etc.
# The -N109 was used for getarg before we realized that GETARG
# was necessary with the (non standard conforming) Absoft compiler
# (Fortran is monocase; Absoft uses mixedcase by default)
# The -f is used by Absoft and is the compiler switch that folds
# symbolic names to lower case. Without this option, the compiler
# considers upper- and lower-case letters to be unique.
# The -YEXT_NAMES=LCS will cause external names to be output as lower
# case letter for Absoft F90 compilers (default is upper case)
# The first line is "<space><newline>, the space is important
# To make the Absoft f77 and f90 work together, we need to prefer the
# upper case versions of the arguments. They also require libU77.
# -YCFRL=1 causes Absoft f90 to work with g77 and similar (f2c-based)
# Fortran compilers
#
# Problem: The Intel efc compiler hangs when presented with -N109 .
# The only real fix for this is to detect this compiler and exclude
# the test. We may want to reorganize these tests so that if we
# can compile code without special options, we never look for them.
#
using_intel_efc="no"
pac_test_msg=`$F77 -V 2>&1 | grep 'Intel(R) Fortran Itanium'`
if test "$pac_test_msg" != "" ; then
using_intel_efc="yes"
fi
if test "$using_intel_efc" = "yes" ; then
trial_FLAGS="000"
else
trial_FLAGS="000
-N109
-f
-YEXT_NAMES=UCS
-YEXT_NAMES=LCS
-YCFRL=1
+U77"
fi
# Discard options that are not available:
# (IFS already saved above)
IFS=" ""
"
save_trial_FLAGS="$trial_FLAGS"
trial_FLAGS=""
for flag in $save_trial_FLAGS ; do
if test "$flag" = " " -o "$flag" = "000" ; then
opt_ok="yes"
else
PAC_F77_CHECK_COMPILER_OPTION($flag,opt_ok=yes,opt_ok=no)
fi
if test "$opt_ok" = "yes" ; then
if test "$flag" = " " -o "$flag" = "000" ; then
fflag=""
else
fflag="$flag"
fi
# discard options that don't allow mixed-case name matching
cat > conftest.f <<EOF
program main
call aB()
end
subroutine Ab()
end
EOF
if test -n "$fflag" ; then flagval="with $fflag" ; else flagval="" ; fi
AC_MSG_CHECKING([whether Fortran 77 routine names are case-insensitive $flagval])
dnl we can use double quotes here because all is already
dnl evaluated
ac_fcompilelink_test="${F77-f77} -o conftest $fflag $FFLAGS conftest.f $LDFLAGS $LIBS 1>&AC_FD_CC"
if AC_TRY_EVAL(ac_fcompilelink_test) && test -x conftest ; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
opt_ok="no"
fi
fi
if test "$opt_ok" = "yes" ; then
trial_FLAGS="$trial_FLAGS
$flag"
fi
done
IFS="$save_IFS"
# Name of routines. Since these are in groups, we use a case statement
# and loop until the end (accomplished by reaching the end of the
# case statement
# For one version of Nag F90, the names are
# call f90_unix_MP_getarg(i,s) and f90_unix_MP_iargc().
trial=0
while test -z "$pac_cv_prog_f77_cmdarg" ; do
case $trial in
0) # User-specified values, if any
if test -z "$F77_GETARG" -o -z "$F77_IARGC" ; then
trial=`expr $trial + 1`
continue
fi
MSG="Using environment values of F77_GETARG etc."
;;
1) # Standard practice, uppercase (some compilers are case-sensitive)
FXX_MODULE=""
F77_GETARGDECL="external GETARG"
F77_GETARG="call GETARG(i,s)"
F77_IARGC="IARGC()"
MSG="GETARG and IARGC"
;;
2) # Standard practice, lowercase
FXX_MODULE=""
F77_GETARGDECL="external getarg"
F77_GETARG="call getarg(i,s)"
F77_IARGC="iargc()"
MSG="getarg and iargc"
;;
3) # Posix alternative
FXX_MODULE=""
F77_GETARGDECL="external pxfgetarg"
F77_GETARG="call pxfgetarg(i,s,l,ier)"
F77_IARGC="ipxfargc()"
MSG="pxfgetarg and ipxfargc"
;;
4) # Nag f90_unix_env module
FXX_MODULE=" use f90_unix_env"
F77_GETARGDECL=""
F77_GETARG="call getarg(i,s)"
F77_IARGC="iargc()"
MSG="f90_unix_env module"
;;
5) # Nag f90_unix module
FXX_MODULE=" use f90_unix"
F77_GETARGDECL=""
F77_GETARG="call getarg(i,s)"
F77_IARGC="iargc()"
MSG="f90_unix module"
;;
6) # user spec in a file
if test -s f77argdef ; then
. ./f77argdef
MSG="Using definitions in the file f77argdef"
else
trial=`expr $trial + 1`
continue
fi
;;
7) # gfortran won't find getarg if it is marked as external
FXX_MODULE=""
F77_GETARGDECL="intrinsic GETARG"
F77_GETARG="call GETARG(i,s)"
F77_IARGC="IARGC()"
MSG="intrinsic GETARG and IARGC"
;;
*) # exit from while loop
FXX_MODULE=""
F77_GETARGDECL=""
F77_GETARG=""
F77_IARGC=""
break
;;
esac
# Create the program. Make sure that we can run it.
# Force a divide-by-zero if there is a problem (but only at runtime!
# (the Absoft compiler does divide-by-zero at compile time)
cat > conftest.f <<EOF
program main
$FXX_MODULE
integer i, j
character*20 s
$F77_GETARGDECL
i = 0
$F77_GETARG
i=$F77_IARGC
if (i .gt. 1) then
j = i - $F77_IARGC
j = 1.0 / j
endif
end
EOF
#
# Now, try to find some way to compile and link that program, looping
# over the possibilities of options and libraries
save_IFS="$IFS"
IFS=" ""
"
for libs in $trial_LIBS ; do
if test -n "$pac_cv_prog_f77_cmdarg" ; then break ; fi
if test "$libs" = " " -o "$libs" = "0" ; then libs="" ; fi
for flags in $trial_FLAGS ; do
if test "$flags" = " " -o "$flags" = "000"; then flags="" ; fi
AC_MSG_CHECKING([whether ${F77-f77} $flags $libs works with $MSG])
IFS="$save_IFS"
dnl We need this here because we've fiddled with IFS
ac_fcompilelink_test="${F77-f77} -o conftest $FFLAGS $flags conftest.f $LDFLAGS $libs $LIBS 1>&AC_FD_CC"
found_answer="no"
if AC_TRY_EVAL(ac_fcompilelink_test) && test -x conftest ; then
if test "$ac_cv_prog_f77_cross" != "yes" -a \
"$cross_compiling" != "yes" ; then
if ./conftest >/dev/null 2>&1 ; then
found_answer="yes"
fi
else
found_answer="yes"
fi
fi
IFS=" ""
"
if test "$found_answer" = "yes" ; then
AC_MSG_RESULT([yes])
pac_cv_prog_f77_cmdarg="$MSG"
pac_cv_prog_f77_cmdarg_fflags="$flags"
pac_cv_prog_f77_cmdarg_ldflags="$libs"
break
else
AC_MSG_RESULT([no])
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.f >&AC_FD_CC
fi
done
done
IFS="$save_IFS"
rm -f conftest.*
trial=`expr $trial + 1`
done
fi
pac_cv_F77_GETARGDECL="$F77_GETARGDECL"
pac_cv_F77_IARGC="$F77_IARGC"
pac_cv_F77_GETARG="$F77_GETARG"
pac_cv_FXX_MODULE="$FXX_MODULE"
])
if test "$found_cached" = "yes" ; then
AC_MSG_RESULT([$pac_cv_prog_f77_cmdarg])
elif test -z "$pac_cv_F77_IARGC" ; then
AC_MSG_WARN([Could not find a way to access the command line from Fortran 77])
fi
# Set the variable values based on pac_cv_prog_xxx
F77_GETARGDECL="$pac_cv_F77_GETARGDECL"
F77_IARGC="$pac_cv_F77_IARGC"
F77_GETARG="$pac_cv_F77_GETARG"
FXX_MODULE="$pac_cv_FXX_MODULE"
F77_GETARG_FFLAGS="$pac_cv_prog_f77_cmdarg_fflags"
F77_GETARG_LDFLAGS="$pac_cv_prog_f77_cmdarg_ldflags"
AC_SUBST(F77_GETARGDECL)
AC_SUBST(F77_IARGC)
AC_SUBST(F77_GETARG)
AC_SUBST(FXX_MODULE)
AC_SUBST(F77_GETARG_FFLAGS)
AC_SUBST(F77_GETARG_LDFLAGS)
])
dnl/*D
dnl PAC_PROG_F77_LIBRARY_DIR_FLAG - Determine the flag used to indicate
dnl the directories to find libraries in
dnl
dnl Notes:
dnl Many compilers accept '-Ldir' just like most C compilers.
dnl Unfortunately, some (such as some HPUX Fortran compilers) do not,
dnl and require instead either '-Wl,-L,dir' or something else. This
dnl command attempts to determine what is accepted. The flag is
dnl placed into 'F77_LIBDIR_LEADER'.
dnl
dnl D*/
dnl
dnl An earlier version of this only tried the arguments without using
dnl a library. This failed when the HP compiler complained about the
dnl arguments, but produced an executable anyway.
AC_DEFUN([PAC_PROG_F77_LIBRARY_DIR_FLAG],[
if test "X$F77_LIBDIR_LEADER" = "X" ; then
AC_CACHE_CHECK([for Fortran 77 flag for library directories],
pac_cv_prog_f77_library_dir_flag,
[
rm -f conftest.* conftest1.*
cat > conftest.f <<EOF
program main
call f1conf
end
EOF
cat > conftest1.f <<EOF
subroutine f1conf
end
EOF
dnl Build library
ac_fcompileforlib='${F77-f77} -c $FFLAGS conftest1.f 1>&AC_FD_CC'
if AC_TRY_EVAL(ac_fcompileforlib) && test -s conftest1.o ; then
if test ! -d conftest ; then mkdir conftest2 ; fi
# We have had some problems with "AR" set to "ar cr"; this is
# a user-error; AR should be set to just the program (plus
# any flags that affect the object file format, such as -X64
# required for 64-bit objects in some versions of AIX).
AC_TRY_COMMAND(${AR-"ar"} cr conftest2/libconftest.a conftest1.o)
AC_TRY_COMMAND(${RANLIB-ranlib} conftest2/libconftest.a)
ac_fcompileldtest='${F77-f77} -o conftest $FFLAGS ${ldir}conftest2 conftest.f -lconftest $LDFLAGS 1>&AC_FD_CC'
for ldir in "-L" "-Wl,-L," ; do
if AC_TRY_EVAL(ac_fcompileldtest) && test -s conftest ; then
pac_cv_prog_f77_library_dir_flag="$ldir"
break
fi
done
rm -rf ./conftest2
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest1.f >&AC_FD_CC
fi
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
])
AC_SUBST(F77_LIBDIR_LEADER)
if test "X$pac_cv_prog_f77_library_dir_flag" != "X" ; then
F77_LIBDIR_LEADER="$pac_cv_prog_f77_library_dir_flag"
fi
fi
])
dnl/*D
dnl PAC_PROG_F77_HAS_INCDIR - Check whether Fortran accepts -Idir flag
dnl
dnl Syntax:
dnl PAC_PROG_F77_HAS_INCDIR(directory,action-if-true,action-if-false)
dnl
dnl Output Effect:
dnl Sets 'F77_INCDIR' to the flag used to choose the directory.
dnl
dnl Notes:
dnl This refers to the handling of the common Fortran include extension,
dnl not to the use of '#include' with the C preprocessor.
dnl If directory does not exist, it will be created. In that case, the
dnl directory should be a direct descendant of the current directory.
dnl
dnl D*/
AC_DEFUN([PAC_PROG_F77_HAS_INCDIR],[
checkdir=$1
AC_CACHE_CHECK([for include directory flag for Fortran],
pac_cv_prog_f77_has_incdir,[
if test ! -d $checkdir ; then mkdir $checkdir ; fi
cat >$checkdir/conftestf.h <<EOF
call sub()
EOF
cat >conftest.f <<EOF
program main
include 'conftestf.h'
end
EOF
ac_fcompiletest='${F77-f77} -c $FFLAGS ${idir}$checkdir conftest.f 1>&AC_FD_CC'
pac_cv_prog_f77_has_incdir="none"
# SGI wants -Wf,-I
for idir in "-I" "-Wf,-I" ; do
if AC_TRY_EVAL(ac_fcompiletest) && test -s conftest.o ; then
pac_cv_prog_f77_has_incdir="$idir"
break
fi
done
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
rm -f $checkdir/conftestf.h
])
AC_SUBST(F77_INCDIR)
if test "X$pac_cv_prog_f77_has_incdir" != "Xnone" ; then
F77_INCDIR="$pac_cv_prog_f77_has_incdir"
fi
])
dnl/*D
dnl PAC_PROG_F77_ALLOWS_UNUSED_EXTERNALS - Check whether the Fortran compiler
dnl allows unused and undefined functions to be listed in an external
dnl statement
dnl
dnl Syntax:
dnl PAC_PROG_F77_ALLOWS_UNUSED_EXTERNALS(action-if-true,action-if-false)
dnl
dnl D*/
AC_DEFUN([PAC_PROG_F77_ALLOWS_UNUSED_EXTERNALS],[
AC_CACHE_CHECK([whether Fortran allows unused externals],
pac_cv_prog_f77_allows_unused_externals,[
AC_LANG_SAVE
AC_LANG_FORTRAN77
dnl We can't use TRY_LINK, because it wants a routine name, not a
dnl declaration. The following is the body of TRY_LINK, slightly modified.
cat > conftest.$ac_ext <<EOF
program main
external bar
end
EOF
if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -rf conftest*
pac_cv_prog_f77_allows_unused_externals="yes"
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.$ac_ext >&AC_FD_CC
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -rf conftest*
pac_cv_prog_f77_allows_unused_externals="no"
$4
fi
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
#
AC_LANG_RESTORE
])
if test "X$pac_cv_prog_f77_allows_unused_externals" = "Xyes" ; then
ifelse([$1],,:,[$1])
else
ifelse([$2],,:,[$2])
fi
])
dnl /*D
dnl PAC_PROG_F77_HAS_POINTER - Determine if Fortran allows pointer type
dnl
dnl Synopsis:
dnl PAC_PROG_F77_HAS_POINTER(action-if-true,action-if-false)
dnl D*/
AC_DEFUN([PAC_PROG_F77_HAS_POINTER],[
AC_CACHE_CHECK([whether Fortran has pointer declaration],
pac_cv_prog_f77_has_pointer,[
AC_LANG_SAVE
AC_LANG_FORTRAN77
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[
integer M
pointer (MPTR,M)
data MPTR/0/
])],
pac_cv_prog_f77_has_pointer="yes",
pac_cv_prog_f77_has_pointer="no")
AC_LANG_RESTORE
])
if test "$pac_cv_prog_f77_has_pointer" = "yes" ; then
ifelse([$1],,:,[$1])
else
ifelse([$2],,:,[$2])
fi
])
dnl pac_prog_f77_run_proc_from_c( c main program, fortran routine,
dnl action-if-works, action-if-fails,
dnl cross-action )
dnl Fortran routine MUST be named ftest unless you include code
dnl to select the appropriate Fortran name.
dnl
AC_DEFUN([PAC_PROG_F77_RUN_PROC_FROM_C],[
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat <<EOF > conftest.f
$2
EOF
dnl
if test "X$ac_fcompile" = "X" ; then
ac_fcompile='${F77-f77} -c $FFLAGS conftest.f 1>&AC_FD_CC'
fi
if AC_TRY_EVAL(ac_fcompile) && test -s conftest.o ; then
mv conftest.o conftestf.o
AC_LANG_SAVE
AC_LANG_C
save_LIBS="$LIBS"
LIBS="conftestf.o $FLIBS $LIBS"
AC_TRY_RUN([#include <stdio.h>
#ifdef F77_NAME_UPPER
#define ftest_ FTEST
#elif defined(F77_NAME_LOWER) || defined(F77_NAME_MIXED)
#define ftest_ ftest
#endif
$1
], [$3], [$4], [$5] )
LIBS="$save_LIBS"
AC_LANG_RESTORE
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.f >&AC_FD_CC
fi
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
])
dnl PAC_PROG_F77_IN_C_LIBS
dnl
dnl Find the essential libraries that are needed to use the C linker to
dnl create a program that includes a trival Fortran code.
dnl
dnl For example, all pgf90 compiled objects include a reference to the
dnl symbol pgf90_compiled, found in libpgf90 .
dnl
dnl There is an additional problem. To *run* programs, we may need
dnl additional arguments; e.g., if shared libraries are used. Even
dnl with autoconf 2.52, the autoconf macro to find the library arguments
dnl doesn't handle this, either by detecting the use of -rpath or
dnl by trying to *run* a trivial program. It only checks for *linking*.
dnl
dnl
AC_DEFUN([PAC_PROG_F77_IN_C_LIBS],[
AC_MSG_CHECKING([for which Fortran libraries are needed to link C with Fortran])
F77_IN_C_LIBS="$FLIBS"
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat <<EOF > conftest.f
subroutine ftest
end
EOF
dnl
if test "X$ac_fcompile" = "X" ; then
ac_fcompile='${F77-f77} -c $FFLAGS conftest.f 1>&AC_FD_CC'
fi
if AC_TRY_EVAL(ac_fcompile) && test -s conftest.o ; then
mv conftest.o mconftestf.o
AC_LANG_SAVE
AC_LANG_C
save_LIBS="$LIBS"
dnl First try with no libraries
LIBS="mconftestf.o $save_LIBS"
AC_TRY_LINK([#include <stdio.h>],[
#ifdef F77_NAME_UPPER
#define ftest_ FTEST
#elif defined(F77_NAME_LOWER) || defined(F77_NAME_MIXED)
#define ftest_ ftest
#endif
extern void ftest_(void);
ftest_();
], [link_worked=yes], [link_worked=no] )
if test "$link_worked" = "no" ; then
flibdirs=`echo $FLIBS | tr ' ' '\012' | grep '\-L' | tr '\012' ' '`
fliblibs=`echo $FLIBS | tr ' ' '\012' | grep -v '\-L' | tr '\012' ' '`
for flibs in $fliblibs ; do
LIBS="mconftestf.o $flibdirs $flibs $save_LIBS"
AC_TRY_LINK([#include <stdio.h>],[
#ifdef F77_NAME_UPPER
#define ftest_ FTEST
#elif defined(F77_NAME_LOWER) || defined(F77_NAME_MIXED)
#define ftest_ ftest
#endif
extern void ftest_(void);
ftest_();
], [link_worked=yes], [link_worked=no] )
if test "$link_worked" = "yes" ; then
F77_IN_C_LIBS="$flibdirs $flibs"
break
fi
done
if test "$link_worked" = "no" ; then
# try to add libraries until it works...
flibscat=""
for flibs in $fliblibs ; do
flibscat="$flibscat $flibs"
LIBS="mconftestf.o $flibdirs $flibscat $save_LIBS"
AC_TRY_LINK([#include <stdio.h>],[
#ifdef F77_NAME_UPPER
#define ftest_ FTEST
#elif defined(F77_NAME_LOWER) || defined(F77_NAME_MIXED)
#define ftest_ ftest
#endif
extern void ftest_(void);
ftest_();
], [link_worked=yes], [link_worked=no] )
if test "$link_worked" = "yes" ; then
F77_IN_C_LIBS="$flibdirs $flibscat"
break
fi
done
fi
else
# No libraries needed
F77_IN_C_LIBS=""
fi
LIBS="$save_LIBS"
AC_LANG_RESTORE
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.f >&AC_FD_CC
fi
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest* mconftest*
if test -z "$F77_IN_C_LIBS" ; then
AC_MSG_RESULT(none)
else
AC_MSG_RESULT($F77_IN_C_LIBS)
fi
])
dnl Test to see if we should use C or Fortran to link programs whose
dnl main program is in Fortran. We may find that neither work because
dnl we need special libraries in each case.
dnl
AC_DEFUN([PAC_PROG_F77_LINKER_WITH_C],[
AC_LANG_SAVE
AC_LANG_C
AC_TRY_COMPILE(,
long long a;,AC_DEFINE(HAVE_LONG_LONG,1,[Define if long long allowed]))
AC_MSG_CHECKING([for linker for Fortran main programs])
dnl
dnl Create a program that uses multiplication and division in case
dnl that requires special libraries
cat > conftest.c <<EOF
#include "confdefs.h"
#ifdef HAVE_LONG_LONG
int f(int a, long long b) { int c; c = a * ( b / 3 ) / (b-1); return c ; }
#else
int f(int a, long b) { int c; c = a * b / (b-1); return c ; }
#endif
EOF
if AC_TRY_EVAL(ac_compile); then
mv conftest.o conftest1.o
else
AC_MSG_ERROR([Could not compile C test program])
fi
AC_LANG_FORTRAN77
cat > conftest.f <<EOF
program main
double precision d
print *, "hi"
end
EOF
if AC_TRY_EVAL(ac_compile); then
# We include $FFLAGS on the link line because this is
# the way in which most of the configure tests run. In particular,
# many users are used to using FFLAGS (and CFLAGS) to select
# different instruction sets, such as 64-bit with -xarch=v9 for
# Solaris.
if ${F77} ${FFLAGS} -o conftest conftest.o conftest1.o $LDFLAGS 2>&AC_FD_CC ; then
AC_MSG_RESULT([Use Fortran to link programs])
elif ${CC} ${CFLAGS} -o conftest conftest.o conftest1.o $LDFLAGS $FLIBS 2>&AC_FD_CC ; then
AC_MSG_RESULT([Use C with FLIBS to link programs])
F77LINKER="$CC"
F77_LDFLAGS="$F77_LDFLAGS $FLIBS"
else
AC_MSG_RESULT([Unable to determine how to link Fortran programs with C])
fi
else
AC_MSG_ERROR([Could not compile Fortran test program])
fi
AC_LANG_RESTORE
])
dnl Check to see if a C program can be linked when using the libraries
dnl needed by C programs
dnl
AC_DEFUN([PAC_PROG_F77_CHECK_FLIBS],
[AC_MSG_CHECKING([whether C can link with $FLIBS])
# Try to link a C program with all of these libraries
save_LIBS="$LIBS"
LIBS="$LIBS $FLIBS"
AC_TRY_LINK(,[int a;],runs=yes,runs=no)
LIBS="$save_LIBS"
AC_MSG_RESULT($runs)
if test "$runs" = "no" ; then
AC_MSG_CHECKING([for which libraries can be used])
pac_ldirs=""
pac_libs=""
pac_other=""
for name in $FLIBS ; do
case $name in
-l*) pac_libs="$pac_libs $name" ;;
-L*) pac_ldirs="$pac_ldirs $name" ;;
*) pac_other="$pac_other $name" ;;
esac
done
save_LIBS="$LIBS"
keep_libs=""
for name in $pac_libs ; do
LIBS="$save_LIBS $pac_ldirs $pac_other $name"
AC_TRY_LINK(,[int a;],runs=yes,runs=no)
if test $runs = "yes" ; then keep_libs="$keep_libs $name" ; fi
done
AC_MSG_RESULT($keep_libs)
LIBS="$save_LIBS"
FLIBS="$pac_ldirs $pac_other $keep_libs"
fi
])
dnl Test for extra libraries needed when linking C routines that use
dnl stdio with Fortran. This test was created for OSX, which
dnl sometimes requires -lSystemStubs. If another library is needed,
dnl add it to F77_OTHER_LIBS
AC_DEFUN([PAC_PROG_F77_AND_C_STDIO_LIBS],[
# To simply the code in the cache_check macro, chose the routine name
# first, in case we need it
confname=conf1_
case "$pac_cv_prog_f77_name_mangle" in
"lower underscore") confname=conf1_ ;;
"upper stdcall") confname=CONF1 ;;
upper) confname=CONF1 ;;
"lower doubleunderscore") confname=conf1_ ;;
lower) confname=conf1 ;;
"mixed underscore") confname=conf1_ ;;
mixed) confname=conf1 ;;
esac
AC_CACHE_CHECK([what libraries are needed to link Fortran programs with C routines that use stdio],pac_cv_prog_f77_and_c_stdio_libs,[
pac_cv_prog_f77_and_c_stdio_libs=unknown
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
cat >conftest.f <<EOF
program main
call conf1(0)
end
EOF
cat >conftestc.c <<EOF
#include <stdio.h>
int $confname( int a )
{ printf( "The answer is %d\n", a ); fflush(stdout); return 0; }
EOF
tmpcmd='${CC-cc} -c $CFLAGS conftestc.c 1>&AC_FD_CC'
if AC_TRY_EVAL(tmpcmd) && test -s conftestc.o ; then
:
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftestc.c >&AC_FD_CC
fi
tmpcmd='${F77-f77} $FFLAGS -o conftest conftest.f conftestc.o 1>&AC_FD_CC'
if AC_TRY_EVAL(tmpcmd) && test -x conftest ; then
pac_cv_prog_f77_and_c_stdio_libs=none
else
# Try again with -lSystemStubs
tmpcmd='${F77-f77} $FFLAGS -o conftest conftest.f conftestc.o -lSystemStubs 1>&AC_FD_CC'
if AC_TRY_EVAL(tmpcmd) && test -x conftest ; then
pac_cv_prog_f77_and_c_stdio_libs="-lSystemStubs"
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftestc.c >&AC_FD_CC
echo "configure: with Fortran 77 program:" >&AC_FD_CC
cat conftest.f >&AC_FD_CC
fi
fi
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
])
if test "$pac_cv_prog_f77_and_c_stdio_libs" != none -a \
"$pac_cv_prog_f77_and_c_stdio_libs" != unknown ; then
F77_OTHER_LIBS="$F77_OTHER_LIBS $pac_cv_prog_f77_and_c_stdio_libs"
fi
])
dnl Check that the FLIBS determined by AC_F77_LIBRARY_LDFLAGS is valid.
dnl That macro (at least as of autoconf 2.59) attempted to parse the output
dnl of the compiler when asked to be verbose; in the case of the Fujitsu
dnl frt Fortran compiler, it included files that frt looked for and then
dnl discarded because they did not exist.
AC_DEFUN([PAC_PROG_F77_FLIBS_VALID],[
pac_cv_f77_flibs_valid=unknown
AC_MSG_CHECKING([whether $F77 accepts the FLIBS found by autoconf])
AC_LANG_SAVE
AC_LANG_FORTRAN77
dnl We can't use TRY_LINK, because it wants a routine name, not a
dnl declaration. The following is the body of TRY_LINK, slightly modified.
cat > conftest.$ac_ext <<EOF
program main
end
EOF
if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
pac_cv_f77_flibs_valid=yes
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.$ac_ext >&AC_FD_CC
pac_cv_f77_flibs_valid=no
fi
AC_MSG_RESULT($pac_cv_f77_flibs_valid)
if test $pac_cv_f77_flibs_valid = no ; then
# See which ones *are* valid
AC_MSG_CHECKING([for valid entries in FLIBS])
goodFLIBS=""
saveFLIBS=$FLIBS
FLIBS=""
for arg in $saveFLIBS ; do
FLIBS="$goodFLIBS $arg"
if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
goodFLIBS=$FLIBS
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.$ac_ext >&AC_FD_CC
fi
done
FLIBS=$goodFLIBS
AC_MSG_RESULT($FLIBS)
fi
#
# This is needed for Mac OSX 10.5
rm -rf conftest.dSYM
rm -f conftest*
AC_LANG_RESTORE
])
AC_DEFUN([PAC_PROG_F77_OBJ_LINKS_WITH_C],[
AC_MSG_CHECKING([whether Fortran 77 and C objects are compatible])
dnl
rm -rf conftestc.dSYM
rm -f conftestc*
dnl construct with a C function with all possible F77 name mangling schemes.
cat <<_EOF > conftestc.c
/* lower */
void c_subpgm( int *rc );
void c_subpgm( int *rc ) { *rc = 1; }
/* lower underscore */
void c_subpgm_( int *rc );
void c_subpgm_( int *rc ) { *rc = 2; }
/* upper */
void C_SUBPGM( int *rc );
void C_SUBPGM( int *rc ) { *rc = 3; }
/* lower doubleunderscore */
void c_subpgm__( int *rc );
void c_subpgm__( int *rc ) { *rc = 4; }
/* mixed */
void C_subpgm( int *rc );
void C_subpgm( int *rc ) { *rc = 5; }
/* mixed underscore */
void C_subpgm_( int *rc );
void C_subpgm_( int *rc ) { *rc = 6; }
_EOF
dnl
dnl Compile the C function into object file.
dnl
pac_Ccompile='${CC-cc} -c $CFLAGS conftestc.c 1>&AC_FD_CC'
if AC_TRY_EVAL(pac_Ccompile) && test -s conftestc.${ac_objext} ; then
pac_c_working=yes
else
pac_c_working=no
echo "configure: failed C program was:" >&AC_FD_CC
cat conftestc.c >&AC_FD_CC
fi
dnl
rm -rf conftestf.dSYM
rm -f conftestf*
cat <<_EOF > conftestf.f
program test
integer rc
rc = -1
call c_subpgm( rc )
write(6,*) "rc=", rc
end
_EOF
dnl - compile the fortran program into object file
pac_Fcompile='${F77-f77} -c $FFLAGS conftestf.f 1>&AC_FD_CC'
if AC_TRY_EVAL(pac_Fcompile) && test -s conftestf.${ac_objext} ; then
pac_f77_working=yes
else
pac_f77_working=no
echo "configure: failed F77 program was:" >&AC_FD_CC
cat conftestf.f >&AC_FD_CC
fi
dnl
if test "$pac_c_working" = "yes" -a "$pac_f77_working" = "yes" ; then
dnl Try linking with F77 compiler
rm -f conftest${ac_exeext}
pac_link='$F77 $FFLAGS -o conftest${ac_exeext} conftestf.${ac_objext} conftestc.${ac_objext} $LDFLAGS >&AC_FD_CC'
if AC_TRY_EVAL(pac_link) && test -s conftest${ac_exeext} ; then
AC_MSG_RESULT(yes)
rm -fr conftestf.dSYM conftestc.dSYM conftest.dSYM
rm -f conftest*
else
dnl Try linking with C compiler
rm -f conftest${ac_exeext}
pac_link='$CC $CFLAGS -o conftest${ac_exeext} conftestf.${ac_objext} conftestc.${ac_objext} $LDFLAGS $FLIBS >&AC_FD_CC'
if AC_TRY_EVAL(pac_link) && test -s conftest${ac_exeext} ; then
AC_MSG_RESULT(yes)
rm -fr conftestf.dSYM conftestc.dSYM conftest.dSYM
rm -f conftest*
else
AC_MSG_RESULT(no)
AC_CHECK_PROG(FILE, file, file, [])
if test "X$FILE" != "X" ; then
fobjtype="`${FILE} conftestf.${ac_objext} | sed -e \"s|conftestf\.${ac_objext}||g\"`"
cobjtype="`${FILE} conftestc.${ac_objext} | sed -e \"s|conftestc\.${ac_objext}||g\"`"
if test "$fobjtype" != "$cobjtype" ; then
AC_MSG_ERROR([**** Incompatible Fortran and C Object File Types! ****
F77 Object File Type produced by \"${F77} ${FFLAGS}\" is : ${fobjtype}.
C Object File Type produced by \"${CC} ${CFLAGS}\" is : ${cobjtype}.])
fi
fi
fi
fi
else
AC_MSG_RESULT([failed compilation])
fi
])
|