Unrequested F77 config

[zaufi]

Hi all!

In my project I'm use libtool from CVS and _don't_ use F77, but during 
./configure execution I'v got an error:

AC_PROG_LIBTOOL messages starts here (my comments started from >>>):
...
checking for a sed that does not truncate output... /bin/sed
checking for egrep... grep -E
checking for ld used by GCC... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... yes
checking for /usr/bin/ld option to reload object files... -r
checking for BSD-compatible nm... /usr/bin/nm -B
checking whether ln -s works... yes
checking how to recognise dependent libraries... pass_all
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking dlfcn.h usability... yes
checking dlfcn.h presence... yes
checking for dlfcn.h... yes
checking for g77... no
checking for f77... no
checking for xlf... no
checking for frt... no
checking for pgf77... no
checking for fl32... no
checking for af77... no
checking for fort77... no
checking for f90... no
checking for xlf90... no
checking for pgf90... no
checking for epcf90... no
checking for f95... no
checking for fort... no
checking for xlf95... no
checking for lf95... no
checking for g95... no
checking whether we are using the GNU Fortran 77 compiler... no
>>> note what F77 not found in my system
>>> continue configure messages...

checking whether  accepts -g... no
>>> I suppose smth missed here between words 'whether' and 'accepts'... --
>>> maybe substitution of undefined shell variable??
>>> continue configure messages...

checking the maximum length of command line arguments... 32768
checking command to parse /usr/bin/nm -B output from gcc object... ok
checking for objdir... .libs
checking for ranlib... ranlib
checking for strip... strip
checking if gcc static flag  works... yes
checking if gcc supports -fno-rtti -fno-exceptions... yes
checking for gcc option to produce PIC... -fPIC
checking if gcc PIC flag -fPIC works... yes
checking if gcc supports -c -o file.o... yes
checking whether the gcc linker (/usr/bin/ld) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking dynamic linker characteristics... GNU/Linux ld.so
checking for shl_load... no
checking for shl_load in -ldld... no
checking for dlopen... no
checking for dlopen in -ldl... yes
checking whether a program can dlopen itself... yes
checking whether a statically linked program can dlopen itself... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
configure: creating libtool
appending configuration tag "CXX" to libtool
checking whether the g++ linker (/usr/bin/ld) supports shared libraries... yes
checking for g++ option to produce PIC... -fPIC
checking if g++ PIC flag -fPIC works... yes
checking if g++ supports -c -o file.o... yes
checking whether the g++ linker (/usr/bin/ld) supports shared libraries... yes
checking whether -lc should be explicitly linked in... yes
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking dynamic linker characteristics... GNU/Linux ld.so
checking for shl_load... (cached) no
checking for shl_load in -ldld... (cached) no
checking for dlopen... (cached) no
checking for dlopen in -ldl... (cached) yes
checking whether a program can dlopen itself... (cached) yes
checking whether a statically linked program can dlopen itself... (cached) yes
appending configuration tag "F77" to libtool
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking for  option to produce PIC... -fPIC
checking if  PIC flag -fPIC works... no
checking if  supports -c -o file.o... no
checking whether the  linker (/usr/bin/ld) supports shared libraries... yes
checking whether -lc should be explicitly linked in... yes
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking dynamic linker characteristics... ./configure: line 1: 
-print-search-dirs: command not found
GNU/Linux ld.so
>>> OOPS!!! 

Why it is needed to configure F77 when I even have no it installed???
Currently I comment the following lines in libtool.m4

dnl And a similar setup for Fortran 77 support
dnl  AC_PROVIDE_IFELSE([AC_PROG_F77],
dnl    [AC_LIBTOOL_F77],
dnl    [define([AC_PROG_F77], defn([AC_PROG_F77])[AC_LIBTOOL_F77
dnl])])

and its working fine, BUT may be whis is a bug??? or I do smth wrong??
any ideas?

regards.