dnl AC_MTL_TRY_COMPILE(INCLUDES, FUNCTION-BODY,dnl             [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])dnl dnl  Just like AC_TRY_COMPILE except it does not #include "confdefs.h"dnl   which is not available in cygwin environment. Alsodnl   changed the file extension used for the temporary file.dnlAC_DEFUN(AC_MTL_TRY_COMPILE,[cat > conftest.cpp <<EOFifelse(AC_LANG, [FORTRAN77],[      program main[$2]      end],[dnl This sometimes fails to find confdefs.h, for some reason.dnl [#]line __oline__ "[$]0"[#]line __oline__ "configure"[$1]int main() {[$2]; return 0; }])EOFac_mtl_compile='${CXX} -c $CFLAGS conftest.cpp 1>&5'if AC_TRY_EVAL(ac_mtl_compile); then  ifelse([$3], , :, [rm -rf conftest*  $3])else  echo "configure: failed program was:" >&AC_FD_CC  cat conftest.cpp >&AC_FD_CCifelse([$4], , , [  rm -rf conftest*  $4])dnlfirm -f conftest*])AC_DEFUN(AC_PROG_CXX_MWERKS,[AC_CACHE_CHECK(whether we are using Metrowerks Codewarrior C++, MWERKS_CXX,[cat > conftest.c <<EOF#ifdef __MWERKS__  yes;#endifEOFif AC_TRY_COMMAND(${CXX} -E conftest.c) | egrep yes >/dev/null 2>&1; then  MWERKS_CXX=yes  compiler=mwerkselse  MWERKS_CXX=nofi])])AC_DEFUN(AC_PROG_CXX_MSVCPP,[AC_CACHE_CHECK(whether we are using Visual C++, MSVCPP_CXX,[cat > conftest.c <<EOF#if defined(_MSC_VER) && !defined(__MWERKS__) && !defined(__ICL)  yes;#endifEOFif AC_TRY_COMMAND(${CXX} -E conftest.c) | egrep yes >/dev/null 2>&1; then  MSVCPP_CXX=yes  compiler=msvcppelse  MSVCPP_CXX=nofi])])AC_DEFUN(AC_PROG_CXX_SGICC,[AC_CACHE_CHECK(whether we are using SGI MIPSpro C++, SGI_CXX,[cat > conftest.c <<EOF# if defined(__sgi) && !defined(__GNUC__)  yes;#endifEOFif AC_TRY_COMMAND(${CXX} -E conftest.c) | egrep yes >/dev/null 2>&1; then  SGI_CXX=yes  compiler=sgiccelse  SGI_CXX=nofi])])AC_DEFUN(AC_PROG_CXX_SUNCC,[AC_CACHE_CHECK(whether we are using Sun C++, SUN_CXX,[cat > conftest.c <<EOF# if defined(__SUNPRO_CC)   yes;#endifEOFif AC_TRY_COMMAND(${CXX} -E conftest.c) | egrep yes >/dev/null 2>&1; then  SUN_CXX=yes  compiler=sunccelse  SUN_CXX=nofi])])AC_DEFUN(AC_PROG_CXX_INTELCC,[AC_CACHE_CHECK(whether we are using Intel C++, INTEL_CXX,[cat > conftest.c <<EOF# if defined(__ICL)  yes;#endifEOFif AC_TRY_COMMAND(${CXX} -E conftest.c) | egrep yes >/dev/null 2>&1; then  INTEL_CXX=yes  compiler=intelccelse  INTEL_CXX=nofi])])AC_DEFUN(AC_PROG_CXX_KAICC,[AC_CACHE_CHECK(whether we are using KAI C++, KAI_CXX,[cat > conftest.c <<EOF# if defined(__KCC)  yes;#endifEOFif AC_TRY_COMMAND(${CXX} -E conftest.c) | egrep yes >/dev/null 2>&1; then  KAI_CXX=yes  compiler=kaiccelse  KAI_CXX=nofi])])AC_DEFUN(AC_BZ_SET_COMPILER,  [cxxwith=`echo $1 | sed -e 's/ /@/'`   case "$cxxwith" in     *:*@*)                 # Full initialization syntax       CXX=`echo "$cxxwith" | sed  -n -e 's/.*:\(.*\)@.*/\1/p'`       CXXFLAGS=`echo "$cxxwith" | sed  -n -e 's/.*:.*@\(.*\)/\1/p'`     ;;     *:*)                   # Simple initialization syntax       CXX=`echo "$cxxwith" | sed  -n -e 's/.*:\(.*\)/\1/p'`       CXXFLAGS=$3     ;;     *)                     # Default values       CXX=$2       CXXFLAGS=$3     ;;   esac])dnl Determine a Fortran 77 compiler to use.  If `F77' is not already setdnl in the environment, check for `g77', `f77' and `f2c', in that order.dnl Set the output variable `F77' to the name of the compiler found.dnl dnl If using `g77' (the GNU Fortran 77 compiler), then `AC_PROG_F77'dnl will set the shell variable `G77' to `yes', and empty otherwise.  Ifdnl the output variable `FFLAGS' was not already set in the environment,dnl then set it to `-g -02' for `g77' (or `-O2' where `g77' does notdnl accept `-g').  Otherwise, set `FFLAGS' to `-g' for all other Fortrandnl 77 compilers.dnl dnl AC_PROG_F77()AC_DEFUN(AC_MTL_PROG_F77,[AC_BEFORE([$0], [AC_PROG_CPP])dnlif test -z "$F77"; then  AC_CHECK_PROGS(F77, g77 f77 f2c)    test -z "$F77" && AC_MSG_WARN([no acceptable Fortran 77 compiler found in \$PATH])fiAC_PROG_F77_WORKSAC_PROG_F77_GNUif test $ac_cv_prog_g77 = yes; then  G77=yesdnl Check whether -g works, even if FFLAGS is set, in case the packagednl plays around with FFLAGS (such as to build both debugging anddnl normal versions of a library), tasteless as that idea is.  ac_test_FFLAGS="${FFLAGS+set}"  ac_save_FFLAGS="$FFLAGS"  FFLAGS=  AC_PROG_F77_G  if test "$ac_test_FFLAGS" = set; then    FFLAGS="$ac_save_FFLAGS"  elif test $ac_cv_prog_f77_g = yes; then    FFLAGS="-g -O2"  else    FFLAGS="-O2"  fielse  G77=  test "${FFLAGS+set}" = set || FFLAGS="-g"fi])