spurious load_path warnings when octave is started at Unix root directory

Wed Sep 10 11:53:05 CDT 2008

Bug report for Octave 3.0.2 configured for i486-pc-linux-gnu

Description:
-----------

When Octave is started in Unix root directory, warnings from the
load_path appear whenever the
current directory is changed. On my machine the warning is
warning: load_path:
./usr/lib/octave/site/oct/api-v32/i486-pc-linux-gnu: No such file or
directory

If I type the path command, then the path
./usr/lib/octave/site/oct/api-v32/i486-pc-linux-gnu
is indeed displayed as a relative path, unlike all other paths, which
are displayed as absolute paths.

If Octave is started in any other directory, then no warnings appear,
and in the output of the path command
the path /usr/lib/octave/site/oct/api-v32/i486-pc-linux-gnu is
displayed correctly as the absolute path.

Repeat-By:
---------

Start octave in unix root directory. Go to any other directory, for example
cd home
As a result the warning will appear
warning: load_path:
./usr/lib/octave/site/oct/api-v32/i486-pc-linux-gnu: No such file or
directory

Fix:
---

Workaround: start Octave in any other folder than the root.

Configuration (please do not edit this section):
-----------------------------------------------

uname output:     Linux ubuntu 2.6.24-19-generic #1 SMP Wed Jun 18
14:43:41 UTC 2008 i686 GNU/Linux
configure opts:   '--build=i486-linux-gnu' '--prefix=/usr'
'--datadir=/usr/share' '--libdir=/usr/lib' '--libexecdir=/usr/lib'
'--infodir=/usr/share/info' '--mandir=/usr/share/man'
'--with-blas=-lblas-3gf' '--with-lapack=-llapackgf-3' '--with-hdf5'
'--with-fftw' '--enable-shared' '--enable-rpath' '--disable-static'
'build_alias=i486-linux-gnu' 'CC=gcc' 'CFLAGS=-g -O2' 'LDFLAGS='
'CPPFLAGS=' 'CXX=g++' 'CXXFLAGS=-g -O2' 'F77=gfortran' 'FFLAGS=-g -O2'
Fortran compiler: gfortran
FFLAGS:           -O2 -g
F2C:              @F2C@
F2CFLAGS:         @F2CFLAGS@
FLIBS:            -L/usr/lib/gcc/i486-linux-gnu/4.3.1
-L/usr/lib/gcc/i486-linux-gnu/4.3.1/../../../../lib -L/lib/../lib
-L/usr/lib/../lib -L/usr/lib/gcc/i486-linux-gnu/4.3.1/../../.. -lhdf5
-lz -lgfortranbegin -lgfortran -lm
CPPFLAGS:
INCFLAGS:         -I. -I. -I./liboctave -I./src -I./libcruft/misc
C compiler:       gcc, version 4.3.1 (Debian 4.3.1-9)
CFLAGS:           -O2 -g
CPICFLAG:         -fPIC
C++ compiler:     g++, version 4.3.1
CXXFLAGS:         -O2 -g
CXXPICFLAG:       -fPIC
LD_CXX:           g++
LDFLAGS:
LIBFLAGS:         -L.
RLD_FLAG:         -Wl,-rpath -Wl,/usr/lib/octave-3.0.2
BLAS_LIBS:        -llapackgf-3 -lblas-3gf
FFTW_LIBS:        -lfftw3
LIBS:             -lreadline  -lncurses -ldl -lhdf5 -lz -lm
LEXLIB:
LIBGLOB:
SED:              /bin/sed
DEFS:

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  -DHAVE_RENAME=1 -DHAVE_RINDEX=1 -DHAVE_RMDIR=1 -DHAVE_ROUND=1
  -DHAVE_SELECT=1 -DHAVE_SETGRENT=1 -DHAVE_SETLOCALE=1
  -DHAVE_SETPWENT=1 -DHAVE_SETVBUF=1 -DHAVE_SIGACTION=1
  -DHAVE_SIGLONGJMP=1 -DHAVE_SIGPENDING=1 -DHAVE_SIGPROCMASK=1
  -DHAVE_SIGSUSPEND=1 -DHAVE_SNPRINTF=1 -DHAVE_STAT=1 -DHAVE_STRCASECMP=1
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  -DHAVE_DLSYM=1 -DHAVE_DLERROR=1 -DHAVE_DLCLOSE=1 -DHAVE_DLOPEN_API=1
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  -DHAVE_ISNAN=1 -DHAVE_ISINF=1 -DHAVE_COPYSIGN=1 -DHAVE_DECL_SIGNBIT=1
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  -DHAVE_POSIX_SIGNALS=1 -DRETSIGTYPE_IS_VOID=1 -DHAVE_GETRUSAGE=1
  -DHAVE_TIMES=1 -DYYTEXT_POINTER=1 -DGNUPLOT_BINARY="gnuplot"

User-preferences (please do not edit this section):
--------------------------------------------------

  EDITOR = emacs
  EXEC_PATH = /usr/lib/octave/3.0.2/site/exec/i486-pc-linux-gnu:/usr/lib/octave/api-v32/site/exec/i486-pc-linux-gnu:/usr/lib/octave/site/exec/i486-pc-linux-gnu:/usr/lib/octave/3.0.2/exec/i486-pc-linux-gnu:/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
  IMAGE_PATH = .:/usr/share/octave/3.0.2/imagelib
  PAGER = pager
  PS1 = \s:\#>
  PS2 = >
  PS4 = +
  beep_on_error = 0
  completion_append_char =
  crash_dumps_octave_core = 1
  echo_executing_commands = 0
  fixed_point_format = 0
  gnuplot_binary = gnuplot
  gnuplot_command_end =

  gnuplot_command_plot = pl
  gnuplot_command_replot = rep
  gnuplot_command_splot = sp
  gnuplot_command_title = t
  gnuplot_command_using = u
  gnuplot_command_with = w
  history_file = /home/amamonov/.octave_hist
  history_size = 1024
  ignore_function_time_stamp = system
  info_file = /usr/share/info/octave3.0.info
  info_program = info
  makeinfo_program = makeinfo
  max_recursion_depth = 256
  output_max_field_width = 5
  output_precision = 5
  page_output_immediately = 0
  page_screen_output = 1
  print_answer_id_name = 1
  print_empty_dimensions = 1
  save_precision = 16
  saving_history = 1
  sighup_dumps_octave_core = 1
  sigterm_dumps_octave_core = 1
  silent_functions = 0
  split_long_rows = 1
  string_fill_char =
  struct_levels_to_print = 2
  suppress_verbose_help_message = 0