aclocal.m4

MPICH是MPI的重要研究,提供了一系列的接口函数,为并行计算的实现提供了编程环境.

	    fi
	done
    fi
done
fi
if test -n "$TK_DIR" ; then 
  AC_MSG_RESULT(found $TK_DIR/include/tk.h and $TK_DIR/lib/libtk)
else
  if test -n "$TK_DIR_W" ; then
    AC_MSG_RESULT(found $TK_DIR_W but need libtk.a (and version 3.6) )
  else
    AC_MSG_RESULT(no)
  fi
  AC_MSG_RESULT(no)
fi
])dnl
dnl
dnl Look for a non-standard library by looking in some named places.
dnl Check for both foo.a and libfoo.a (and .so)
dnl 
dnl PAC_FIND_USER_LIB(LIB-NAME[,LIB-LIST,ACTION-IF-FOUND,ACTION-IF-NOT-FOUND])
dnl (use foo to check for foo.a and libfoo.a)
dnl Checks the usual places, as well as /usr/local/LIBNAME and
dnl /usr/local/LIBNAME/lib .
dnl The location of the library may be found in pac_lib_file.
dnl The DIRECTORY of the library may be found in pac_lib_dir
dnl
define(PAC_FIND_USER_LIB,[
AC_MSG_CHECKING([for library $1])
pac_lib_file=""
pac_lib_dir=""
for dir in $2 \
    /usr \
    /usr/local \
    /usr/local/$1 \
    /usr/contrib \
    /usr/contrib/$1 \
    $HOME/$1 \
    /opt/$1 \
    /opt/local \
    /opt/local/$1 \
    /local/encap/$1 ; do
    for suffix in a so ; do
        if test -n "$pac_lib_dir" ; then break ; fi
        if test -r $dir/$1.$suffix ; then
	    pac_lib_file=$dir/$1.$suffix
            pac_lib_dir=$dir
	    break
        fi
        if test -r $dir/lib$1.$suffix ; then
	    pac_lib_file=$dir/lib$1.$suffix
            pac_lib_dir=$dir
	    break
        fi
        if test -r $dir/lib/$1.$suffix ; then
	    pac_lib_file=$dir/lib/$1.$suffix
            pac_lib_dir=$dir/lib
	    break
        fi
        if test -r $dir/lib/lib$1.$suffix ; then
	    pac_lib_file=$dir/lib/lib$1.$suffix
            pac_lib_dir=$dir/lib
	    break
        fi
    done
done
if test -n "$pac_lib_file" ; then 
  AC_MSG_RESULT(found $pac_lib_file)
  ifelse([$3],,,[$3])
else
  AC_MSG_RESULT(no)
  ifelse([$4],,,[$4])
fi
])dnl
dnl
dnl Look for a non-standard include by looking in some named places.
dnl Check for foo.h
dnl 
dnl PAC_FIND_USER_INCLUDE(FILE-NAME[,DIR-LIST,ACTION-IF-FOUND,ACTION-IF-NOT-FOUND])
dnl (use foo to check for foo.h)
dnl Checks the usual places, as well as /usr/local/FILENAME and
dnl /usr/local/FILENAME/include .
dnl The location of the include directory library may be found in pac_inc_dir.
dnl
define(PAC_FIND_USER_INCLUDE,[
AC_MSG_CHECKING([for include directory for $1])
pac_inc_dir=""
for dir in $2 \
    /usr \
    /usr/local \
    /usr/local/$1 \
    /usr/contrib \
    /usr/contrib/$1 \
    $HOME/$1 \
    /opt/$1 \
    /opt/local \
    /opt/local/$1 \
    /local/encap/$1 ; do
    if test -r $dir/$1.h ; then
	pac_inc_dir=$dir
	break
    fi
    if test -r $dir/include/$1.h ; then
	pac_inc_dir=$dir/include
	break
    fi
    if test -r $dir/lib/lib$1.a ; then
	pac_lib_file=$dir/lib/lib$1.a
	break
    fi
    if test -r $dir/lib/lib$1.so ; then
	pac_lib_file=$dir/lib/lib$1.so
	break
    fi
done
if test -n "$pac_inc_dir" ; then 
  AC_MSG_RESULT(found $pac_inc_dir)
  ifelse([$3],,,[$3])
else
  AC_MSG_RESULT(no)
  ifelse([$4],,,[$4])
fi
])dnl
dnl
dnl The AC_CHECK_HEADER assumes that you can use cpp to check for 
dnl headers for the (CROSS!) compiler.  This is ridiculous.
dnl I've FIXED the code from version 2
dnl
dnl ### Printing messages
dnl
dnl
dnl Check whether to use -n, \c, or newline-tab to separate
dnl checking messages from result messages.
dnl Idea borrowed from dist 3.0.
dnl Internal use only.
define(AC_PROG_ECHO_N,
ac_echo_n=yes
[if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
  # Stardent Vistra SVR4 grep lacks -e, says [e-mail].
  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
    ac_n= ac_c='
' ac_t='	'
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi
ac_echo_test=`echo foo 1>&1`
if test -z "$ac_echo_test" ; then
     print_error "Your sh shell does not handle the output redirection"
     print_error "1>&1 correctly.  Configure will work around this problem,"
     print_error "but you should report the problem to your vendor."
fi
define(pac_set_echo_n,1)dnl
])dnl
dnl AC_MSG_CHECKING(FEATURE-DESCRIPTION)
define(AC_FD_MSG,1)dnl
define(AC_MSG_CHECKING,[dnl
dnl ifdef(pac_set_echo_n,,[
if test -z "$ac_echo_n" ; then
AC_PROG_ECHO_N
fi
dnl ])
if test -z "$ac_echo_test" -a AC_FD_MSG = 1 ; then
echo $ac_n "checking $1""... $ac_c"
else
echo $ac_n "checking $1""... $ac_c" 1>&AC_FD_MSG
fi])dnl
dnl
dnl AC_MSG(msg)
dnl generates "msg..." (no newline)
define(AC_MSG,[dnl
ifdef(pac_set_echo_n,,[
if test -z "$ac_echo_n" ; then
AC_PROG_ECHO_N
fi])
if test -z "$ac_echo_test" -a AC_FD_MSG = 1 ; then
echo $ac_n "$1""... $ac_c"
else
echo $ac_n "$1""... $ac_c" 1>&AC_FD_MSG
fi])dnl
dnl
dnl AC_CHECKING(FEATURE-DESCRIPTION)
define(AC_CHECKING,dnl
[echo "checking $1" 1>&AC_FD_MSG])dnl
dnl
dnl AC_MSG_RESULT(RESULT-DESCRIPTION)
define(AC_MSG_RESULT,dnl
if test -z "$ac_echo_test" -a AC_FD_MSG = 1 ; then
[echo "$ac_t""$1"]
else
[echo "$ac_t""$1" 1>&AC_FD_MSG]
fi)dnl
dnl
dnl PAC_CHECK_HEADER(HEADER-FILE, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND],
dnl PRE-REQ-HEADERS )
dnl
dnl BUG: AIX 4.1 can't handle a \055 (octal for -) in a tr string (sometimes;
dnl it works from the shell but not within a file)
dnl I've removed that and hoped that no header will include a - in the
dnl name
dnl
dnl This can fail if the header needs OTHER headers for the compile
dnl to succeed.  Those headers should be specified in the "pre-req-headers"
dnl For example 
dnl PAC_CHECK_HEADER(sys/vfs.h,AC_DEFINE(HAVE_SYS_VFS_H),,
dnl                  [#include <sys/types.h>])
dnl
define(PAC_CHECK_HEADER,dnl
[dnl Do the transliteration at runtime so arg 1 can be a shell variable.
changequote(,)dnl
ac_safe=`echo "$1" | tr '[a-z]./' '[A-Z]__'`
changequote([,])dnl
AC_MSG_CHECKING([for $1])
dnl AC_CACHE_VAL(ac_cv_header_$ac_safe,[dnl
AC_COMPILE_CHECK(,[$4]
[#include <$1>],main();,eval "ac_cv_header_$ac_safe=yes",
  eval "ac_cv_header_$ac_safe=no")dnl])dnl
if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
  AC_MSG_RESULT(yes)
  ifelse([$2], , :, [$2])
else
  AC_MSG_RESULT(no)
ifelse([$3], , , [$3
])dnl
fi
])dnl
dnl
dnl PAC_CHECK_HEADERS(HEADER-FILE... [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
define(PAC_CHECK_HEADERS,[for ac_hdr in $1
do
PAC_CHECK_HEADER($ac_hdr,
[changequote(, )dnl
  ac_tr_hdr=HAVE_`echo $ac_hdr | tr '[a-z]./' '[A-Z]__'`
changequote([, ])dnl
  AC_DEFINE($ac_tr_hdr) $2], $3)dnl
done
])dnl
dnl
dnl WARNING: AC_HEADER_STDC uses CPP instead of CC!
dnl
dnl
dnl Check to see if malloc is declared as char *malloc or void *malloc
dnl If stdlib.h is not defined, then this will choose char*malloc.
dnl
define(PAC_MALLOC_RETURNS_VOID,
[AC_MSG_CHECKING(for malloc return type)
AC_COMPILE_CHECK(,[#include <stdlib.h>],[extern void *malloc();],
eval "ac_cv_malloc=void",eval "ac_cv_malloc=char")
AC_MSG_RESULT($ac_cv_malloc)
if test "$ac_cv_malloc" = void ; then
    AC_DEFINE(MALLOC_RET_VOID)
fi
])dnl
dnl
dnl Check that the compile actually runs.  Perform first arg is yes,
dnl second if false
dnl PAC_CHECK_COMPILER_OK(true-action, false-action)
dnl
define(PAC_CHECK_COMPILER_OK,[
AC_REQUIRE([AC_CROSS_CHECK])
AC_MSG_CHECKING(that the compiler $CC runs)
AC_COMPILE_CHECK(,,return 0;,eval "ac_cv_ccworks=yes",eval "ac_cv_ccworks=no")
AC_MSG_RESULT($ac_cv_ccworks)
if test $ac_cv_ccworks = "yes" ; then
    ifelse([$1],,:,[$1])
else
# Generate output from failed test.  See COMPILE_CHECK code
# It really would be better if the compile tests put the output into
# a file for later analysis, like conftest.out
#
cat > conftest.c <<EOF
#include "confdefs.h"
int main() { exit(0); }
int t() { return 0; }
EOF
$CC $CFLAGS conftest.c -o conftest $LIBS
rm -f conftest* 
#
# End of output
    ifelse([$2],,:,[$2])
fi
])dnl
dnl
dnl Check that the compile accepts ANSI prototypes.  Perform first arg if yes,
dnl second if false
dnl PAC_CHECK_CC_PROTOTYPES(true-action, false-action)
dnl
define(PAC_CHECK_CC_PROTOTYPES,[
AC_MSG_CHECKING(that the compiler $CC accepts ANSI prototypes)
AC_COMPILE_CHECK(,[int f(double a){return 0;}],,eval "ac_cv_ccworks=yes",eval "ac_cv_ccworks=no")
AC_MSG_RESULT($ac_cv_ccworks)
if test $ac_cv_ccworks = "yes" ; then
    ifelse([$1],,:,[$1])
else
    ifelse([$2],,:,[$2])
fi
])dnl
dnl
dnl Check that the compile accepts ANSI const type.  Perform first arg if yes,
dnl second if false
dnl PAC_CHECK_CC_CONST(true-action, false-action)
dnl
define(PAC_CHECK_CC_CONST,[
AC_MSG_CHECKING(that the compiler $CC accepts const modifier)
AC_COMPILE_CHECK(,[int f(const int a){return a;}],,eval "ac_cv_ccworks=yes",eval "ac_cv_ccworks=no")
AC_MSG_RESULT($ac_cv_ccworks)
if test $ac_cv_ccworks = "yes" ; then
    ifelse([$1],,:,[$1])
else
    ifelse([$2],,:,[$2])
fi
])dnl
dnl
dnl Test the compiler to see if it actually works.  First, check to see
dnl if the compiler works at all
dnl Uses TESTCC, not CC
dnl 
dnl The test directory is ccbugs by default, but can be overridded with 
dnl CCBUGS
dnl
define(PAC_CORRECT_COMPILER,[
AC_REQUIRE([AC_CROSS_CHECK])
if test -z "$CCBUGS" ; then CCBUGS=ccbugs ; fi
if test -d $CCBUGS ; then 
    # Use "LTESTCC" as "local Test CC"
    if test -z "$TESTCC" ; then LTESTCC="$CC" ; else LTESTCC="$TESTCC" ; fi
    for file in $CCBUGS/ccfail*.c ; do
        CFILE=`basename $file .c`
        AC_MSG_CHECKING(`cat $CCBUGS/$CFILE.title`)
        cp $file conftest.c
        broken=1
        rm -f conftest.out conftest.rout
        if eval $LTESTCC $CFLAGS -o conftest conftest.c $LIBS >conftest.out 2>&1 ; then
	    if test -s conftest ; then
                ./conftest 2>&1 1>conftest.rout
                if test $? = 0 ; then
  	            broken=0
                fi
	    fi
        fi
        if test $broken = 1 ; then 
	    AC_MSG_RESULT(no)
	    cat $CCBUGS/$CFILE.txt | sed 's/^/\*\#/g' 
	    if test -s conftest.out ; then
	        echo "Output from compile step was:"
		cat conftest.out
	    fi
	    if test -s conftest.rout ; then
	        echo "Output from run step was:"
		cat conftest.rout
	    fi
	else
	    AC_MSG_RESULT(yes)
        fi
	/bin/rm -f conftest conftest.c conftest.o conftest.out conftest.rout
    done
    #
    # These are non-fatal, but must be run
    for file in $CCBUGS/ccnfail*.c ; do
        CFILE=`basename $file .c`
        AC_MSG_CHECKING(`cat $CCBUGS/$CFILE.title`)
        cp $file conftest.c
        nbroken=1
	rm -f conftest.out conftest.rout
        if eval $LTESTCC $CFLAGS -o conftest conftest.c $LIBS >conftest.out 2>&1 ; then
	    if test -s conftest ; then
                ./conftest 2>&1 1>conftest.rout
                if test $? = 0 ; then
  	            nbroken=0
                fi
	    fi
        fi
        if test $nbroken = 1 ; then 
	    AC_MSG_RESULT(no)
	    cat $CCBUGS/$CFILE.txt | sed 's/^/\*\#/g' 
	    if test -s conftest.out ; then
	        echo "Output from compile step was:"
		cat conftest.out
	    fi
	    if test -s conftest.rout ; then
	        echo "Output from run step was:"
		cat conftest.rout
	    fi
	else
	    AC_MSG_RESULT(yes)
        fi
	/bin/rm -f conftest conftest.c conftest.o conftest.out conftest.rout
    done

    # 
    # Now, try the warnings.  Note that this just does compiles, not runs
    for file in $CCBUGS/ccwarn*.c ; do
        CFILE=`basename $file .c`
        AC_MSG_CHECKING(`cat $CCBUGS/$CFILE.title`)
        cp $file conftest.c
        if eval $CC $CFLAGS \
	    -DCONFIGURE_ARGS_CLEAN="'"'"'-A -B'"'"'" -c \
	    conftest.c $LIBS > /dev/null 2>&1 ; then
	    AC_MSG_RESULT(yes)
	    true 
	else
	    AC_MSG_RESULT(no)
	    cat $CCBUGS/$CFILE.txt | sed 's/^/\*\#/g' 
	    if test "$CFILE" = "ccwarn1" ; then
	       CONFIGURE_ARGS_CLEAN="`echo $CONFIGURE_ARGS_CLEAN | tr ' ' '_'`"
            fi
        fi
	# set +x
	/bin/rm -f conftest conftest.[co]
    done
    # 
    # After everything, see if there are any problems
    if test $broken = 1 ; then 
        if test -z "$FAILMSG" ; then
	    echo "Compiler $CC appears broken; aborting configure..."
        else
	    eval echo "$FAILMSG"
        fi
        exit 1
    fi
fi
])dnl
dnl
dnl Check that the Fortran compiler works.  We needed this first for LINUX
dnl Perform first arg is yes, second if false
dnl PAC_CHECK_F77_COMPILER_OK(true-action, false-action)
dnl The name of the compiler is F77
dnl
define(PAC_CHECK_F77_COMPILER_OK,[
AC_MSG_CHECKING(that the compiler $F77 runs)
cat >conftest.f <<EOF
          program main
          end
EOF
/bin/rm -f conftest.out
$F77 $FFLAGS -c conftest.f > conftest.out 2>&1
if test $? != 0 ; then
    AC_MSG_RESULT(no)
    echo "Fortran compiler returned non-zero return code"
    if test -s conftest.out ; then
	echo "Output from test was"
        cat conftest.out
    fi
    ifelse([$2],,:,[$2])
elif test ! -s conftest.o ; then