Subversion Repositories openrisc

dnl This file is included into all any other acinclude file that needs

dnl to use these macros.

dnl This is copied from autoconf 2.12, but does calls our own AC_PROG_CC_WORKS,

dnl and doesn't call AC_PROG_CXX_GNU, cause we test for that in  AC_PROG_CC_WORKS.

dnl We are probably using a cross compiler, which will not be able to fully

dnl link an executable.  This should really be fixed in autoconf itself.

dnl Find a working G++ cross compiler. This only works for the GNU C++ compiler.

AC_DEFUN([CYG_AC_PROG_CXX_CROSS],

[AC_BEFORE([$0], [AC_PROG_CXXCPP])

AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)

CYG_AC_PROG_GXX_WORKS

if test $ac_cv_prog_gxx = yes; then

  GXX=yes

dnl Check whether -g works, even if CXXFLAGS is set, in case the package

dnl plays around with CXXFLAGS (such as to build both debugging and

dnl normal versions of a library), tasteless as that idea is.

  ac_test_CXXFLAGS="${CXXFLAGS+set}"

  ac_save_CXXFLAGS="$CXXFLAGS"

  CXXFLAGS=

  AC_PROG_CXX_G

  if test "$ac_test_CXXFLAGS" = set; then

    CXXFLAGS="$ac_save_CXXFLAGS"

  elif test $ac_cv_prog_cxx_g = yes; then

    CXXFLAGS="-g -O2"

  else

    CXXFLAGS="-O2"

  fi

else

  GXX=

  test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"

fi

])

dnl See if the G++ compiler we found works.

AC_DEFUN([CYG_AC_PROG_GXX_WORKS],

[AC_MSG_CHECKING([whether the G++ compiler ($CXX $CXXFLAGS $LDFLAGS) actually works])

AC_LANG_SAVE

AC_LANG_CPLUSPLUS

dnl Try a test case. We only compile, because it's close to impossible

dnl to get a correct fully linked executable with a cross compiler. For

dnl most cross compilers, this test is bogus. For G++, we can use various

dnl other compile line options to get a decent idea that the cross compiler

dnl actually does work, even though we can't produce an executable without

dnl more info about the target it's being compiled for. This only works

dnl for the GNU C++ compiler.

dnl Transform the name of the compiler to it's cross variant, unless

dnl CXX is set. This is also what CXX gets set to in the generated

dnl Makefile.

if test x"${CXX}" = xc++ ; then

    CXX=`echo gcc | sed -e "${program_transform_name}"`

fi

dnl Get G++'s full path to libgcc.a

libgccpath=`${CXX} --print-libgcc`

dnl If we don't have a path with libgcc.a on the end, this isn't G++.

if test `echo $libgccpath | sed -e 's:/.*/::'` = libgcc.a ; then

   ac_cv_prog_gxx=yes

else

   ac_cv_prog_gxx=no

fi

dnl If we are using G++, look for the files that need to exist if this

dnl compiler works.

if test x"${ac_cv_prog_gxx}" = xyes ; then

    gccfiles=`echo $libgccpath | sed -e 's:/libgcc.a::'`

    if test -f ${gccfiles}/specs -a -f ${gccfiles}/cpp -a -f ${gccfiles}/cc1plus; then

        gccfiles=yes

    else

        gccfiles=no

    fi

    gcclibs=`echo $libgccpath | sed -e 's:lib/gcc-lib/::' -e 's:/libgcc.a::' -e 's,\(.*\)/.*,\1,g'`/lib

    if test -d ${gcclibs}/ldscripts -a -f ${gcclibs}/libc.a -a -f ${gcclibs}/libstdc++.a ; then

        gcclibs=yes

    else

        gcclibs=no

    fi

fi

dnl If everything is OK, then we can safely assume the compiler works.

if test x"${gccfiles}" = xno -o x"${gcclibs}" = xno; then

    ac_cv_prog_cxx_works=no

    AC_MSG_ERROR(${CXX} is a non-working cross compiler)

else

   ac_cv_prog_cxx_works=yes

fi

AC_LANG_RESTORE

AC_MSG_RESULT($ac_cv_prog_cxx_works)

if test x"$ac_cv_prog_cxx_works" = xno; then

  AC_MSG_ERROR([installation or configuration problem: C++ compiler cannot create executables.])

fi

AC_MSG_CHECKING([whether the G++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler])

AC_MSG_RESULT($ac_cv_prog_cxx_cross)

cross_compiling=$ac_cv_prog_cxx_cross

AC_SUBST(CXX)

])

dnl ====================================================================

dnl Find a working GCC cross compiler. This only works for the GNU gcc compiler.

dnl This is based on the macros above for G++.

AC_DEFUN([CYG_AC_PROG_CC_CROSS],

[AC_BEFORE([$0], [AC_PROG_CCPP])

AC_CHECK_PROGS(CC, cc, gcc)

CYG_AC_PROG_GCC_WORKS

if test $ac_cv_prog_gcc = yes; then

  GCC=yes

dnl Check whether -g works, even if CFLAGS is set, in case the package

dnl plays around with CFLAGS (such as to build both debugging and

dnl normal versions of a library), tasteless as that idea is.

  ac_test_CFLAGS="${CFLAGS+set}"

  ac_save_CFLAGS="$CFLAGS"

  CFLAGS=

  AC_PROG_CC_G

  if test "$ac_test_CFLAGS" = set; then

    CFLAGS="$ac_save_CFLAGS"

  elif test $ac_cv_prog_cc_g = yes; then

    CFLAGS="-g -O2"

  else

    CFLAGS="-O2"

  fi

else

  GXX=

  test "${CFLAGS+set}" = set || CFLAGS="-g"

fi

])

dnl See if the GCC compiler we found works.

AC_DEFUN([CYG_AC_PROG_GCC_WORKS],

[AC_MSG_CHECKING([whether the Gcc compiler ($CC $CFLAGS $LDFLAGS) actually works])

AC_LANG_SAVE

AC_LANG_C

dnl Try a test case. We only compile, because it's close to impossible

dnl to get a correct fully linked executable with a cross

dnl compiler. For most cross compilers, this test is bogus. For G++,

dnl we can use various other compile line options to get a decent idea

dnl that the cross compiler actually does work, even though we can't

dnl produce an executable without more info about the target it's

dnl being compiled for. This only works for the GNU C++ compiler.

dnl Transform the name of the compiler to it's cross variant, unless

dnl CXX is set. This is also what CC gets set to in the generated Makefile.

if test x"${CC}" = xcc ; then

    CC=`echo gcc | sed -e "${program_transform_name}"`

fi

dnl Get Gcc's full path to libgcc.a

libgccpath=`${CC} --print-libgcc`

dnl If we don't have a path with libgcc.a on the end, this isn't G++.

if test `echo $libgccpath | sed -e 's:/.*/::'` = libgcc.a ; then

   ac_cv_prog_gcc=yes

else

   ac_cv_prog_gcc=no

fi

dnl If we are using Gcc, look for the files that need to exist if this

dnl compiler works.

if test x"${ac_cv_prog_gcc}" = xyes ; then

    gccfiles=`echo $libgccpath | sed -e 's:/libgcc.a::'`

    if test -f ${gccfiles}/specs -a -f ${gccfiles}/cpp -a -f ${gccfiles}/cc1plus; then

        gccfiles=yes

    else

        gccfiles=no

    fi

    gcclibs=`echo $libgccpath | sed -e 's:lib/gcc-lib/::' -e 's:/libgcc.a::' -e 's,\(.*\)/.*,\1,g'`/lib

    if test -d ${gcclibs}/ldscripts -a -f ${gcclibs}/libc.a -a -f ${gcclibs}/libstdc++.a ; then

        gcclibs=yes

    else

        gcclibs=no

    fi

fi

dnl If everything is OK, then we can safely assume the compiler works.

if test x"${gccfiles}" = xno -o x"${gcclibs}" = xno; then

    ac_cv_prog_cc_works=no

    AC_MSG_ERROR(${CC} is a non-working cross compiler)

else

    ac_cv_prog_cc_works=yes

fi

AC_LANG_RESTORE

AC_MSG_RESULT($ac_cv_prog_cc_works)

if test x"$ac_cv_prog_cc_works" = xno; then

  AC_MSG_ERROR([installation or configuration problem: C++ compiler cannot create executables.])

fi

AC_MSG_CHECKING([whether the Gcc compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler])

AC_MSG_RESULT($ac_cv_prog_cc_cross)

cross_compiling=$ac_cv_prog_cc_cross

AC_SUBST(CC)

])

dnl ====================================================================

dnl Find the BFD library in the build tree. This is used to access and

dnl manipulate object or executable files.

AC_DEFUN([CYG_AC_PATH_BFD], [

AC_MSG_CHECKING(for the bfd header in the build tree)

dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."

dnl Look for the header file

AC_CACHE_VAL(ac_cv_c_bfdh,[

for i in $dirlist; do

    if test -f "$i/bfd/bfd.h" ; then

        ac_cv_c_bfdh=`(cd $i/bfd; ${PWDCMD-pwd})`

        break

    fi

done

])

if test x"${ac_cv_c_bfdh}" != x; then

    BFDHDIR="-I${ac_cv_c_bfdh}"

    AC_MSG_RESULT(${ac_cv_c_bfdh})

else

    AC_MSG_RESULT(none)

fi

AC_SUBST(BFDHDIR)

dnl Look for the library

AC_MSG_CHECKING(for the bfd library in the build tree)

AC_CACHE_VAL(ac_cv_c_bfdlib,[

for i in $dirlist; do

    if test -f "$i/bfd/Makefile" ; then

        ac_cv_c_bfdlib=`(cd $i/bfd; ${PWDCMD-pwd})`

    fi

done

])

dnl We list two directories cause bfd now uses libtool

if test x"${ac_cv_c_bfdlib}" != x; then

    BFDLIB="-L${ac_cv_c_bfdlib} -L${ac_cv_c_bfdlib}/.libs"

    AC_MSG_RESULT(${ac_cv_c_bfdlib})

else

    AC_MSG_RESULT(none)

fi

AC_SUBST(BFDLIB)

])

dnl ====================================================================

dnl Find the libiberty library. This defines many commonly used C

dnl functions that exists in various states based on the underlying OS.

AC_DEFUN([CYG_AC_PATH_LIBERTY], [

AC_MSG_CHECKING(for the liberty library in the build tree)

dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."

AC_CACHE_VAL(ac_cv_c_liberty,[

for i in $dirlist; do

    if test -f "$i/libiberty/Makefile" ; then

        ac_cv_c_liberty=`(cd $i/libiberty; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_liberty}" != x; then

    LIBERTY="-L${ac_cv_c_liberty}"

    AC_MSG_RESULT(${ac_cv_c_liberty})

else

    AC_MSG_RESULT(none)

fi

AC_SUBST(LIBERTY)

])

dnl ====================================================================

dnl Find the opcodes library. This is used to do dissasemblies.

AC_DEFUN([CYG_AC_PATH_OPCODES], [

AC_MSG_CHECKING(for the opcodes library in the build tree)

dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."

AC_CACHE_VAL(ac_cv_c_opc,[

for i in $dirlist; do

    if test -f "$i/opcodes/Makefile" ; then

        ac_cv_c_opc=`(cd $i/opcodes; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_opc}" != x; then

    OPCODESLIB="-L${ac_cv_c_opc}"

    AC_MSG_RESULT(${ac_cv_c_opc})

else

    AC_MSG_RESULT(none)

fi

AC_SUBST(OPCODESLIB)

])

dnl ====================================================================

dnl Look for the DejaGnu header file in the source tree. This file

dnl defines the functions used to testing support.

AC_DEFUN([CYG_AC_PATH_DEJAGNU], [

AC_MSG_CHECKING(for the testing support files in the source tree)

dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."

AC_CACHE_VAL(ac_cv_c_dejagnu,[

for i in $dirlist; do

    if test -f "$srcdir/$i/ecc/ecc/infra/testlib/current/include/dejagnu.h" ; then

        ac_cv_c_dejagnu=`(cd $srcdir/$i/ecc/ecc/infra/testlib/current/include; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_dejagnu}" != x; then

    DEJAGNUHDIR="-I${ac_cv_c_dejagnu}"

    AC_MSG_RESULT(${ac_cv_c_dejagnu})

else

    AC_MSG_RESULT(none)

fi

AC_CACHE_VAL(ac_cv_c_dejagnulib,[

for i in $dirlist; do

    if test -f "$srcdir/$i/infra/testlib/current/lib/hostutil.exp" ; then

        ac_cv_c_dejagnulib=`(cd $srcdir/$i/infra/testlib/current/lib; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_dejagnulib}" != x; then

    DEJAGNULIB="${ac_cv_c_dejagnulib}"

else

    DEJAGNULIB=""

fi

AC_MSG_CHECKING(for runtest in the source tree)

AC_CACHE_VAL(ac_cv_c_runtest,[

for i in $dirlist; do

    if test -f "$srcdir/$i/dejagnu/runtest" ; then

        ac_cv_c_runtest=`(cd $srcdir/$i/dejagnu; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_runtest}" != x; then

    RUNTESTDIR="${ac_cv_c_runtest}"

   AC_MSG_RESULT(${ac_cv_c_runtest})

else

    RUNTESTDIR=""

    AC_MSG_RESULT(none)

fi

AC_SUBST(RUNTESTDIR)

AC_SUBST(DEJAGNULIB)

AC_SUBST(DEJAGNUHDIR)

])

dnl ====================================================================

dnl Find the libintl library in the build tree. This is for

dnl  internationalization support.

AC_DEFUN([CYG_AC_PATH_INTL], [

AC_MSG_CHECKING(for the intl header in the build tree)

dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."

dnl Look for the header file

AC_CACHE_VAL(ac_cv_c_intlh,[

for i in $dirlist; do

    if test -f "$i/intl/libintl.h" ; then

        ac_cv_c_intlh=`(cd $i/intl; ${PWDCMD-pwd})`

        break

    fi

done

])

if test x"${ac_cv_c_intlh}" != x; then

    INTLHDIR="-I${ac_cv_c_intlh}"

    AC_MSG_RESULT(${ac_cv_c_intlh})

else

    AC_MSG_RESULT(none)

fi

AC_SUBST(INTLHDIR)

dnl Look for the library

AC_MSG_CHECKING(for the libintl library in the build tree)

AC_CACHE_VAL(ac_cv_c_intllib,[

for i in $dirlist; do

    if test -f "$i/intl/Makefile" ; then

        ac_cv_c_intllib=`(cd $i/intl; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_intllib}" != x; then

    INTLLIB="-L${ac_cv_c_intllib} -lintl"

    AC_MSG_RESULT(${ac_cv_c_intllib})

else

    AC_MSG_RESULT(none)

fi

AC_SUBST(INTLLIB)

])

dnl ====================================================================

dnl Find the simulator library.

AC_DEFUN([CYG_AC_PATH_SIM], [

dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.. ../../../../../../../../../.."

case "$target_cpu" in

    powerpc)    target_dir=ppc ;;

    sparc*)     target_dir=erc32 ;;

    mips*)      target_dir=mips ;;

    *)          target_dir=$target_cpu ;;

esac

dnl First look for the header file

AC_MSG_CHECKING(for the simulator header file)

AC_CACHE_VAL(ac_cv_c_simh,[

for i in $dirlist; do

    if test -f "${srcdir}/$i/include/remote-sim.h" ; then

        ac_cv_c_simh=`(cd ${srcdir}/$i/include; ${PWDCMD-pwd})`

        break

    fi

done

])

if test x"${ac_cv_c_simh}" != x; then

    SIMHDIR="-I${ac_cv_c_simh}"

    AC_MSG_RESULT(${ac_cv_c_simh})

else

    AC_MSG_RESULT(none)

fi

AC_SUBST(SIMHDIR)

dnl See whether it's a devo or Foundry branch simulator

AC_MSG_CHECKING(Whether this is a devo simulator )

AC_CACHE_VAL(ac_cv_c_simdevo,[

    CPPFLAGS="$CPPFLAGS $SIMHDIR"

    AC_EGREP_HEADER([SIM_DESC sim_open.*struct _bfd], remote-sim.h,

        ac_cv_c_simdevo=yes,

        ac_cv_c_simdevo=no)

])

if test x"$ac_cv_c_simdevo" = x"yes" ; then

    AC_DEFINE(HAVE_DEVO_SIM)

fi

AC_MSG_RESULT(${ac_cv_c_simdevo})

AC_SUBST(HAVE_DEVO_SIM)

dnl Next look for the library

AC_MSG_CHECKING(for the simulator library)

AC_CACHE_VAL(ac_cv_c_simlib,[

for i in $dirlist; do

    if test -f "$i/sim/$target_dir/Makefile" ; then

        ac_cv_c_simlib=`(cd $i/sim/$target_dir; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_simlib}" != x; then

    SIMLIB="-L${ac_cv_c_simlib}"

else

    AC_MSG_RESULT(none)

    dnl FIXME: this is kinda bogus, cause umtimately the TM will build

    dnl all the libraries for several architectures. But for now, this

    dnl will work till then.

dnl     AC_MSG_CHECKING(for the simulator installed with the compiler libraries)

    dnl Transform the name of the compiler to it's cross variant, unless

    dnl CXX is set. This is also what CXX gets set to in the generated

    dnl Makefile.

    CROSS_GCC=`echo gcc | sed -e "s/^/$target/"`

    dnl Get G++'s full path to libgcc.a

changequote(,)

    gccpath=`${CROSS_GCC} --print-libgcc | sed -e 's:[a-z0-9A-Z\.\-]*/libgcc.a::' -e 's:lib/gcc-lib/::'`lib

changequote([,])

    if test -f $gccpath/libsim.a -o -f $gccpath/libsim.so ; then

        ac_cv_c_simlib="$gccpath/"

        SIMLIB="-L${ac_cv_c_simlib}"

        AC_MSG_RESULT(${ac_cv_c_simlib})

    else

        AM_CONDITIONAL(PSIM, test x$psim = xno)

        SIMLIB=""

        AC_MSG_RESULT(none)

dnl         ac_cv_c_simlib=none

    fi

fi

AC_SUBST(SIMLIB)

])

dnl ====================================================================

dnl Find the libiberty library.

AC_DEFUN([CYG_AC_PATH_LIBIBERTY], [

AC_MSG_CHECKING(for the libiberty library in the build tree)

dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."

AC_CACHE_VAL(ac_cv_c_libib,[

for i in $dirlist; do

    if test -f "$i/libiberty/Makefile" ; then

        ac_cv_c_libib=`(cd $i/libiberty/; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_libib}" != x; then

    LIBIBERTY="-L${ac_cv_c_libib}"

    AC_MSG_RESULT(${ac_cv_c_libib})

else

    AC_MSG_RESULT(none)

fi

AC_SUBST(LIBIBERTY)

])

dnl ====================================================================

AC_DEFUN([CYG_AC_PATH_DEVO], [

AC_MSG_CHECKING(for devo headers in the source tree)

dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."

AC_CACHE_VAL(ac_cv_c_devoh,[

for i in $dirlist; do

    if test -f "${srcdir}/$i/include/remote-sim.h" ; then

        ac_cv_c_devoh=`(cd ${srcdir}/$i/include; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_devoh}" != x; then

    DEVOHDIR="-I${ac_cv_c_devoh}"

    AC_MSG_RESULT(${ac_cv_c_devoh})

else

    AC_MSG_RESULT(none)

fi

AC_SUBST(DEVOHDIR)

])

dnl ====================================================================

dnl Find all the ILU headers and libraries

AC_DEFUN([CYG_AC_PATH_ILU], [

AC_MSG_CHECKING(for ILU kernel headers in the source tree)

dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."

AC_CACHE_VAL(ac_cv_c_iluh,[

for i in $dirlist; do

    if test -f "${srcdir}/$i/ilu/runtime/kernel/method.h" ; then

        ac_cv_c_iluh=`(cd ${srcdir}/$i/ilu/runtime/kernel; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_iluh}" != x; then

    ILUHDIR="-I${ac_cv_c_iluh}"

    AC_MSG_RESULT(${ac_cv_c_iluh})

else

    AC_MSG_RESULT(none)

fi

AC_MSG_CHECKING(for ILU kernel headers in the build tree)

dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."

AC_CACHE_VAL(ac_cv_c_iluh5,[

for i in $dirlist; do

    if test -f "$i/ilu/runtime/kernel/iluconf.h" ; then

        ac_cv_c_iluh5=`(cd $i/ilu/runtime/kernel; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_iluh5}" != x; then

    ILUHDIR="${ILUHDIR} -I${ac_cv_c_iluh5}"

    AC_MSG_RESULT(${ac_cv_c_iluh5})

else

    AC_MSG_RESULT(none)

fi

AC_MSG_CHECKING(for ILU C++ headers in the source tree)

AC_CACHE_VAL(ac_cv_c_iluh2,[

for i in $dirlist; do

    if test -f "${srcdir}/$i/ilu/stubbers/cpp/resource.h" ; then

        ac_cv_c_iluh2=`(cd ${srcdir}/$i/ilu/stubbers/cpp; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_iluh2}" != x; then

    ILUHDIR="${ILUHDIR} -I${ac_cv_c_iluh2}"

    AC_MSG_RESULT(${ac_cv_c_iluh2})

else

    AC_MSG_RESULT(none)

fi

AC_MSG_CHECKING(for ILU C headers)

AC_CACHE_VAL(ac_cv_c_iluh3,[

for i in $dirlist; do

    if test -f "${srcdir}/$i/ilu/stubbers/c/resource.h" ; then

        ac_cv_c_iluh3=`(cd ${srcdir}/$i/ilu/stubbers/c  ; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_iluh3}" != x; then

    ILUHDIR="${ILUHDIR} -I${ac_cv_c_iluh3}"

    AC_MSG_RESULT(${ac_cv_c_iluh3})

else

    AC_MSG_RESULT(none)

fi

AC_MSG_CHECKING(for ILU C runtime headers)

AC_CACHE_VAL(ac_cv_c_iluh4,[

for i in $dirlist; do

    if test -f "${srcdir}/$i/ilu/runtime/c/ilucstub.h" ; then

        ac_cv_c_iluh4=`(cd ${srcdir}/$i/ilu/runtime/c  ; ${PWDCMD-pwd})`

    fi

done

])

if test x"${ac_cv_c_iluh4}" != x; then

    ILUHDIR="${ILUHDIR} -I${ac_cv_c_iluh4}"

    AC_MSG_RESULT(${ac_cv_c_iluh4})

else

    AC_MSG_RESULT(none)

fi

AC_CACHE_VAL(ac_cv_c_ilupath,[

for i in $dirlist; do

    if test -f "$i/ilu/Makefile" ; then

        ac_cv_c_ilupath=`(cd $i/ilu; ${PWDCMD-pwd})`

        break

    fi

done

])

ILUTOP=${ac_cv_c_ilupath}

AC_MSG_CHECKING(for the ILU library in the build tree)

AC_CACHE_VAL(ac_cv_c_ilulib,[

if test -f "$ac_cv_c_ilupath/runtime/kernel/Makefile" ; then

    ac_cv_c_ilulib=`(cd $ac_cv_c_ilupath/runtime/kernel; ${PWDCMD-pwd})`

    AC_MSG_RESULT(found ${ac_cv_c_ilulib}/libilu.a)

else

    AC_MSG_RESULT(no)

fi])

AC_MSG_CHECKING(for the ILU C++ bindings library in the build tree)

AC_CACHE_VAL(ac_cv_c_ilulib2,[

if test -f "$ac_cv_c_ilupath/runtime/cpp/Makefile" ; then

    ac_cv_c_ilulib2=`(cd $ac_cv_c_ilupath/runtime/cpp; ${PWDCMD-pwd})`

    AC_MSG_RESULT(found ${ac_cv_c_ilulib2}/libilu-c++.a)

else

    AC_MSG_RESULT(no)

fi])

AC_MSG_CHECKING(for the ILU C bindings library in the build tree)

AC_CACHE_VAL(ac_cv_c_ilulib3,[

if test -f "$ac_cv_c_ilupath/runtime/c/Makefile" ; then

    ac_cv_c_ilulib3=`(cd $ac_cv_c_ilupath/runtime/c; ${PWDCMD-pwd})`

    AC_MSG_RESULT(found ${ac_cv_c_ilulib3}/libilu-c.a)

else

    AC_MSG_RESULT(no)

fi])

AC_MSG_CHECKING(for the ILU Tk bindings library in the build tree)

AC_CACHE_VAL(ac_cv_c_ilulib4,[

if test -f "$ac_cv_c_ilupath/runtime/mainloop/Makefile" ; then

    ac_cv_c_ilulib4=`(cd $ac_cv_c_ilupath/runtime/mainloop; ${PWDCMD-pwd})`

    AC_MSG_RESULT(found ${ac_cv_c_ilulib4}/libilu-tk.a)

else

    AC_MSG_RESULT(no)

fi])

if test x"${ac_cv_c_ilulib}" = x -a x"${ac_cv_c_ilulib2}" = x; then

  ILUHDIR=""

fi

if test x"${ac_cv_c_ilulib}" != x -a x"${ac_cv_c_ilulib2}" != x; then

    ILULIB="-L${ac_cv_c_ilulib} -L${ac_cv_c_ilulib2} -L${ac_cv_c_ilulib3} -L${ac_cv_c_ilulib4}"

else

    ILULIB=""

fi

if test x"${ILULIB}" = x; then

    AC_MSG_CHECKING(for ILU libraries installed with the compiler)

    AC_CACHE_VAL(ac_cv_c_ilulib5,[

    NATIVE_GCC=`echo gcc | sed -e "${program_transform_name}"`

    dnl Get G++'s full path to it's libraries

    ac_cv_c_ilulib5=`${NATIVE_GCC} --print-libgcc | sed -e 's:lib/gcc-lib/.*::'`lib

    if test -f $ac_cv_c_ilulib5/libilu-c.a -o -f $ac_cv_c_ilulib5/libilu-c.so ; then

        if test x"${ILUHDIR}" = x; then

               ILUHDIR="-I${ac_cv_c_ilulib5}/../include"

        fi

        ILULIB="-L${ac_cv_c_ilulib5}"

        AC_MSG_RESULT(${ac_cv_c_ilulib5})

    else

        ac_cv_c_ilulib=none

        AC_MSG_RESULT(none)

    fi

fi])

AC_SUBST(ILUHDIR)

AC_SUBST(ILULIB)

AC_SUBST(ILUTOP)

])

dnl ====================================================================

dnl This defines the byte order for the host. We can't use

dnl AC_C_BIGENDIAN, cause we want to create a config file and

dnl substitue the real value, so the header files work right

AC_DEFUN([CYG_AC_C_ENDIAN], [

AC_MSG_CHECKING(to see if this is a little endian host)

AC_CACHE_VAL(ac_cv_c_little_endian, [

ac_cv_c_little_endian=unknown

# See if sys/param.h defines the BYTE_ORDER macro.

AC_TRY_COMPILE([#include <sys/types.h>

#include <sys/param.h>], [

#if !BYTE_ORDER || !_BIG_ENDIAN || !_LITTLE_ENDIAN

 bogus endian macros

#endif], [# It does; now see whether it defined to _LITTLE_ENDIAN or not.

AC_TRY_COMPILE([#include <sys/types.h>

#include <sys/param.h>], [

#if BYTE_ORDER != _LITTLE_ENDIAN

 not big endian

#endif], ac_cv_c_little_endian=yes, ac_cv_c_little_endian=no)

])

if test ${ac_cv_c_little_endian} = unknown; then

old_cflags=$CFLAGS

CFLAGS=-g

AC_TRY_RUN([

main () {

  /* Are we little or big endian?  From Harbison&Steele.  */

  union

  {

    long l;

    char c[sizeof (long)];

  } u;

  u.l = 1;

  exit (u.c[0] == 1);

}],

ac_cv_c_little_endian=no,

ac_cv_c_little_endian=yes,[

dnl Yes, this is ugly, and only used for a canadian cross anyway. This

dnl is just to keep configure from stopping here.

case "${host}" in

changequote(,)

   i[3456789]86-*-*) ac_cv_c_little_endian=yes ;;

   sparc*-*-*)    ac_cv_c_little_endian=no ;;

changequote([,])

  *)    AC_MSG_WARN(Can't cross compile this test) ;;

esac])

CFLAGS=$old_cflags

fi])

if test x"${ac_cv_c_little_endian}" = xyes; then

    AC_DEFINE(LITTLE_ENDIAN_HOST)

    ENDIAN="CYG_LSBFIRST";

else

    ENDIAN="CYG_MSBFIRST";

fi

AC_MSG_RESULT(${ac_cv_c_little_endian})

AC_SUBST(ENDIAN)

])

dnl ====================================================================

dnl Look for the path to libgcc, so we can use it to directly link

dnl in libgcc.a with LD.

AC_DEFUN([CYG_AC_PATH_LIBGCC],

[AC_MSG_CHECKING([Looking for the path to libgcc.a])

AC_LANG_SAVE

AC_LANG_C

dnl Get Gcc's full path to libgcc.a

libgccpath=`${CC} --print-libgcc`

dnl If we don't have a path with libgcc.a on the end, this isn't G++.

if test `echo $libgccpath | sed -e 's:/.*/::'` = libgcc.a ; then

   ac_cv_prog_gcc=yes

else

   ac_cv_prog_gcc=no

fi

dnl

if test x"${ac_cv_prog_gcc}" = xyes ; then

   gccpath=`echo $libgccpath | sed -e 's:/libgcc.a::'`

   LIBGCC="-L${gccpath}"

   AC_MSG_RESULT(${gccpath})

else

   LIBGCC=""

   AC_MSG_ERROR(Not using gcc)

fi

AC_LANG_RESTORE

AC_SUBST(LIBGCC)

])