Earlier, you showed a .f file that started with
program foo
double complex ...
If that is what the above shell script produces, then I don't know how
to fix this problem, as your shell is doing something completely
unexpected. So, is the code above copied into the conftest.f file
correctly or is your shell broken?
| XLIBS="$LIBS"
| LIBS="$BLAS_LIBS $FLIBS $LIBS"
| ac_ext=f
| ac_compile='$F77 -c $FFLAGS conftest.$ac_ext >&5'
| ac_link='$F77 -o conftest$ac_exeext $FFLAGS $LDFLAGS conftest.$ac_ext
| $LIBS >&5'
| ac_compiler_gnu=$ac_cv_f77_compiler_gnu
| | (eval "$ac_compile"; eval "$ac_link") 2>&5
| ac_ext=c
| ac_cpp='$CPP $CPPFLAGS'
| ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
| ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS
| conftest.$ac_ext $LIBS >&5'
| ac_compiler_gnu=$ac_cv_c_compiler_gnu
| | LIBS="$XLIBS"
| case "`./conftest$ac_exeext`" in
| *succeeded*)
| { echo "$as_me:$LINENO: result: yes" >&5
| echo "${ECHO_T}yes" >&6; }
| ;;
| *)
| { echo "$as_me:$LINENO: result: no" >&5
| echo "${ECHO_T}no" >&6; }
| { echo "$as_me:$LINENO: WARNING: Your BLAS library was apparently
| compiled with a Fortran" >&5
| echo "$as_me: WARNING: Your BLAS library was apparently compiled
with a
| Fortran" >&2;}
| { echo "$as_me:$LINENO: WARNING: compiler that uses a different
| calling convention from" >&5
| echo "$as_me: WARNING: compiler that uses a different calling
convention
| from" >&2;}
| { echo "$as_me:$LINENO: WARNING: the one used by the selected
| compiler, $F77." >&5
| echo "$as_me: WARNING: the one used by the selected compiler,
$F77." >&2;}
| { { echo "$as_me:$LINENO: error: You must correct this problem
before
| building Octave." >&5
| echo "$as_me: error: You must correct this problem before building
| Octave." >&2;}
| { (exit 1); exit 1; }; }
| ;;
| esac
| | | If I have understood this correctly then the lines:
| | ac_ext=f
| ac_compile='$F77 -c $FFLAGS conftest.$ac_ext >&5'
| ac_link='$F77 -o conftest$ac_exeext $FFLAGS $LDFLAGS conftest.$ac_ext
| $LIBS >&5'
| ac_compiler_gnu=$ac_cv_f77_compiler_gnu
| | (eval "$ac_compile"; eval "$ac_link") 2>&5
| | is for compiling the Fortran test code and
| | LIBS="$XLIBS"
| case "`./conftest$ac_exeext`" in
| *succeeded*)
| { echo "$as_me:$LINENO: result: yes" >&5
| echo "${ECHO_T}yes" >&6; }
| ;;
| *)
| | runs the test code. However, I don't understand what the lines:
| | ac_ext=c
| ac_cpp='$CPP $CPPFLAGS'
| ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
| ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS
| conftest.$ac_ext $LIBS >&5'
| ac_compiler_gnu=$ac_cv_c_compiler_gnu
| | does. It seems to be for compiling some C-test code that I can't
find.
The configure.in file has these lines:
AC_LANG_PUSH(Fortran 77)
(eval "$ac_compile"; eval "$ac_link") 2>&AS_MESSAGE_LOG_FD
AC_LANG_POP(Fortran 77)
I think the lines you quote directly above are the result of the
AC_LANG_POP macro, which is resetting the autoconf variables to use
the C compiler. The argument to AC_LANG_POP is the *current* language,
to allow a consistency check (you should be popping the current
language).