2.13 issue with AC_PROG_CXX

[Gray Watson]

Thanks much for autoconf.  Continues to be extremely useful.

I'm a little surprised that the test for C++ compiler support is fatal
if no.  The documentation does not imply this and I wish it did not have
that behavior.  I have a package which tests for C++ support and if not
there it will no build the C++ part of the package.

Am I missing something?  Is there a reason why the following diffs
should be put into place?  If not then can a AC_PROG_CXX_TEST or some
such be added that doesn't exit.

thanks much,
-- 
Gray Watson <address@hidden>

*** acspecific.m4.ORG   Tue Jan  5 08:27:52 1999
--- acspecific.m4       Wed Feb 21 20:03:05 2001
***************
*** 206,212 ****
  AC_LANG_RESTORE
  AC_MSG_RESULT($ac_cv_prog_cc_works)
  if test $ac_cv_prog_cc_works = no; then
!   AC_MSG_ERROR([installation or configuration problem: C compiler cannot 
create executables.])
  fi
  AC_MSG_CHECKING([whether the C compiler ($CC $CFLAGS $LDFLAGS) is a 
cross-compiler])
  AC_MSG_RESULT($ac_cv_prog_cc_cross)
--- 206,212 ----
  AC_LANG_RESTORE
  AC_MSG_RESULT($ac_cv_prog_cc_works)
  if test $ac_cv_prog_cc_works = no; then
!   AC_MSG_WARN([installation or configuration problem: C compiler cannot 
create executables.])
  fi
  AC_MSG_CHECKING([whether the C compiler ($CC $CFLAGS $LDFLAGS) is a 
cross-compiler])
  AC_MSG_RESULT($ac_cv_prog_cc_cross)
***************
*** 221,227 ****
  AC_LANG_RESTORE
  AC_MSG_RESULT($ac_cv_prog_cxx_works)
  if test $ac_cv_prog_cxx_works = no; then
!   AC_MSG_ERROR([installation or configuration problem: C++ compiler cannot 
create executables.])
  fi
  AC_MSG_CHECKING([whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a 
cross-compiler])
  AC_MSG_RESULT($ac_cv_prog_cxx_cross)
--- 221,227 ----
  AC_LANG_RESTORE
  AC_MSG_RESULT($ac_cv_prog_cxx_works)
  if test $ac_cv_prog_cxx_works = no; then
!   AC_MSG_WARN([installation or configuration problem: C++ compiler cannot 
create executables.])
  fi
  AC_MSG_CHECKING([whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a 
cross-compiler])
  AC_MSG_RESULT($ac_cv_prog_cxx_cross)
***************
*** 245,251 ****
  AC_LANG_RESTORE
  AC_MSG_RESULT($ac_cv_prog_f77_works)
  if test $ac_cv_prog_f77_works = no; then
!   AC_MSG_ERROR([installation or configuration problem: Fortran 77 compiler 
cannot create executables.])
  fi
  AC_MSG_CHECKING([whether the Fortran 77 compiler ($F77 $FFLAGS $LDFLAGS) is a 
cross-compiler])
  AC_MSG_RESULT($ac_cv_prog_f77_cross)
--- 245,251 ----
  AC_LANG_RESTORE
  AC_MSG_RESULT($ac_cv_prog_f77_works)
  if test $ac_cv_prog_f77_works = no; then
!   AC_MSG_WARN([installation or configuration problem: Fortran 77 compiler 
cannot create executables.])
  fi
  AC_MSG_CHECKING([whether the Fortran 77 compiler ($F77 $FFLAGS $LDFLAGS) is a 
cross-compiler])
  AC_MSG_RESULT($ac_cv_prog_f77_cross)