CDPATH problem reappears when using octave-2.9.9 from Emacs 23

[Michel Salim]

--------
Bug report for Octave 2.9.9 configured for x86_64-redhat-linux-gnu

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

When running Octave 2.9.9 from Emacs (using the CVS unicode-2 branch here),
using M-x run-octave, I get this error:

 "No such directory found via CDPATH environment variable"

This does not occur after I downgraded Octave to 2.9.8. The problem occurs both
on a Fedora Core 6 (prerelease) machine on x86_64 and on a Fedora Core 5
machine on i386.

The problem also does not occur when using the stable 21.4 release of Emacs

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

 * Install CVS version of emacs from the emacs-unicode-2 branch
 * Start Emacs
 * M-x run-octave

Fix:
---

 * If possible, replace this item with a description of how to
   fix the problem (if you don't have a fix for the problem, don't
   include this section, but please do submit your report anyway).



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

uname output:     Linux salem 2.6.18-1.2798.fc6 #1 SMP Mon Oct 16
14:39:22 EDT 2006 x86_64 x86_64 x86_64 GNU/Linux
configure opts:   '--build=x86_64-redhat-linux-gnu'
'--host=x86_64-redhat-linux-gnu' '--target=x86_64-redhat-linux-gnu'
'--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr'
'--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc'
'--datadir=/usr/share' '--includedir=/usr/include'
'--libdir=/usr/lib64' '--libexecdir=/usr/libexec'
'--localstatedir=/var' '--sharedstatedir=/usr/com'
'--mandir=/usr/share/man' '--infodir=/usr/share/info'
'--enable-shared' '--disable-static' '--enable-64=no'
'build_alias=x86_64-redhat-linux-gnu'
'host_alias=x86_64-redhat-linux-gnu'
'target_alias=x86_64-redhat-linux-gnu' 'CFLAGS=-O2 -g -pipe -Wall
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic'
'CPPFLAGS=-I/usr/include/glpk' 'CXXFLAGS=-O2 -g -pipe -Wall
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic' 'FFLAGS=-O2 -g -pipe
-Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic'
Fortran compiler: gfortran
FFLAGS:           -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2
-fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64
-mtune=generic
F2C:
F2CFLAGS:
FLIBS:            -L/usr/lib/gcc/x86_64-redhat-linux/4.1.1
-L/usr/lib/gcc/x86_64-redhat-linux/4.1.1/../../../../lib64
-L/lib/../lib64 -L/usr/lib/../lib64 -lhdf5 -lz -lgfortranbegin
-lgfortran -lm
CPPFLAGS:         -I/usr/include/glpk
INCFLAGS:         -I. -I. -I./liboctave -I./src -I./libcruft/misc
C compiler:       gcc, version 4.1.1 20060928 (Red Hat 4.1.1-28)
CFLAGS:           -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2
-fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64
-mtune=generic
CPICFLAG:         -fPIC
C++ compiler:     g++, version 4.1.1
CXXFLAGS:         -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2
-fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64
-mtune=generic
CXXPICFLAG:       -fPIC
LD_CXX:           g++
LDFLAGS:
LIBFLAGS:         -L.
RLD_FLAG:         -Wl,-rpath -Wl,/usr/lib64/octave-2.9.9
BLAS_LIBS:        -llapack -lblas
FFTW_LIBS:        -lfftw3
LIBS:             -lreadline  -lncurses -ldl -lhdf5 -lz -lm
LEXLIB:
LIBDLFCN:
LIBGLOB:
SED:              /bin/sed
DEFS:

 -DPACKAGE_NAME="" -DPACKAGE_TARNAME="" -DPACKAGE_VERSION=""
 -DPACKAGE_STRING="" -DPACKAGE_BUGREPORT="" -DOCTAVE_SOURCE=1
 -D_GNU_SOURCE=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1
 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1
 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DSEPCHAR=':'
 -DSEPCHAR_STR=":" -D__NO_MATH_INLINES=1 -DCXX_NEW_FRIEND_TEMPLATE_DECL=1
 -DCXX_ISO_COMPLIANT_LIBRARY=1 -DCXX_ABI=unknown -DHAVE_LIBM=1
 -DHAVE_REGEXEC=1 -DHAVE_REGEX=1 -DHAVE_REGEXEC=1 -DHAVE_ZLIB_H=1
 -DHAVE_ZLIB=1 -DHAVE_HDF5_H=1 -DHAVE_HDF5=1 -DHAVE_H5GGET_NUM_OBJS=1
 -DHAVE_FFTW3=1 -DHAVE_GLPK_H=1 -DHAVE_GLPK=1 -DHAVE_IEEE754_DATA_FORMAT=1
 -DF77_FUNC(name,NAME)=name ## _ -DF77_FUNC_(name,NAME)=name ##
 _ -DHAVE_BLAS=1 -DHAVE_UFSPARSE_UMFPACK_H=1 -DHAVE_UMFPACK=1
 -DUMFPACK_SEPARATE_SPLIT=1 -DHAVE_UFSPARSE_COLAMD_H=1
 -DHAVE_COLAMD=1 -DHAVE_UFSPARSE_CCOLAMD_H=1 -DHAVE_CCOLAMD=1
 -DHAVE_UFSPARSE_CHOLMOD_H=1 -DHAVE_CHOLMOD=1 -DHAVE_UFSPARSE_CS_H=1
 -DHAVE_CXSPARSE=1 -DHAVE_GETHOSTNAME=1 -DHAVE_GETPWNAM=1 -DHAVE_DEV_T=1
 -DHAVE_INO_T=1 -DHAVE_NLINK_T=1 -DHAVE_NLINK_T=1 -DHAVE_LONG_LONG_INT=1
 -DHAVE_UNSIGNED_LONG_LONG_INT=1 -DHAVE_SIGSET_T=1 -DHAVE_SIG_ATOMIC_T=1
 -DSIZEOF_SHORT=2 -DSIZEOF_INT=4 -DSIZEOF_LONG=8 -DSIZEOF_LONG_LONG=8
 -DHAVE_ALLOCA_H=1 -DHAVE_ALLOCA=1 -DNPOS=std::string::npos
 -DHAVE_PLACEMENT_DELETE=1 -DHAVE_DYNAMIC_AUTO_ARRAYS=1
 -DSTDC_HEADERS=1 -DHAVE_DIRENT_H=1 -DTIME_WITH_SYS_TIME=1
 -DHAVE_SYS_WAIT_H=1 -DHAVE_ASSERT_H=1 -DHAVE_CURSES_H=1 -DHAVE_DLFCN_H=1
 -DHAVE_FCNTL_H=1 -DHAVE_FLOAT_H=1 -DHAVE_GRP_H=1 -DHAVE_INTTYPES_H=1
 -DHAVE_LIMITS_H=1 -DHAVE_LOCALE_H=1 -DHAVE_MEMORY_H=1 -DHAVE_NCURSES_H=1
 -DHAVE_POLL_H=1 -DHAVE_PWD_H=1 -DHAVE_STDINT_H=1 -DHAVE_STDLIB_H=1
 -DHAVE_STRING_H=1 -DHAVE_SYS_IOCTL_H=1 -DHAVE_SYS_PARAM_H=1
 -DHAVE_SYS_POLL_H=1 -DHAVE_SYS_RESOURCE_H=1 -DHAVE_SYS_SELECT_H=1
 -DHAVE_SYS_STAT_H=1 -DHAVE_SYS_TIME_H=1 -DHAVE_SYS_TIMES_H=1
 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_UTSNAME_H=1 -DHAVE_TERMCAP_H=1
 -DHAVE_UNISTD_H=1 -DHAVE_SSTREAM=1 -DHAVE_TERMIO_H=1 -DHAVE_SGTTY_H=1
 -DHAVE_GLOB_H=1 -DHAVE_FNMATCH_H=1 -DHAVE_FNMATCH=1 -DHAVE_GLOB=1
 -DHAVE_ATEXIT=1 -DHAVE_BASENAME=1 -DHAVE_BCOPY=1 -DHAVE_BZERO=1
 -DHAVE_CANONICALIZE_FILE_NAME=1 -DHAVE_DUP2=1 -DHAVE_ENDGRENT=1
 -DHAVE_ENDPWENT=1 -DHAVE_EXECVP=1 -DHAVE_FCNTL=1 -DHAVE_FORK=1
 -DHAVE_GETCWD=1 -DHAVE_GETEGID=1 -DHAVE_GETEUID=1 -DHAVE_GETGID=1
 -DHAVE_GETGRENT=1 -DHAVE_GETGRGID=1 -DHAVE_GETGRNAM=1 -DHAVE_GETPGRP=1
 -DHAVE_GETPID=1 -DHAVE_GETPPID=1 -DHAVE_GETPWENT=1 -DHAVE_GETPWUID=1
 -DHAVE_GETTIMEOFDAY=1 -DHAVE_GETUID=1 -DHAVE_GETWD=1 -DHAVE_KILL=1
 -DHAVE_LINK=1 -DHAVE_LOCALTIME_R=1 -DHAVE_LSTAT=1 -DHAVE_MEMMOVE=1
 -DHAVE_MKDIR=1 -DHAVE_MKFIFO=1 -DHAVE_MKSTEMP=1 -DHAVE_ON_EXIT=1
 -DHAVE_PIPE=1 -DHAVE_POLL=1 -DHAVE_PUTENV=1 -DHAVE_RAISE=1
 -DHAVE_READLINK=1 -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_STAT=1
 -DHAVE_STRCASECMP=1 -DHAVE_STRDUP=1 -DHAVE_STRERROR=1 -DHAVE_STRFTIME=1
 -DHAVE_STRNCASECMP=1 -DHAVE_STRPTIME=1 -DHAVE_STRSIGNAL=1
 -DHAVE_SYMLINK=1 -DHAVE_TEMPNAM=1 -DHAVE_UMASK=1 -DHAVE_UNAME=1
 -DHAVE_UNLINK=1 -DHAVE_USLEEP=1 -DHAVE_VFPRINTF=1 -DHAVE_VSPRINTF=1
 -DHAVE_VSNPRINTF=1 -DHAVE_WAITPID=1 -DHAVE_LIBDL=1 -DHAVE_DLOPEN=1
 -DHAVE_DLSYM=1 -DHAVE_DLERROR=1 -DHAVE_DLCLOSE=1 -DHAVE_DLOPEN_API=1
 -DENABLE_DYNAMIC_LINKING=1 -DHAVE_TIMEVAL=1 -DHAVE_FINITE=1
 -DHAVE_ISNAN=1 -DHAVE_ISINF=1 -DHAVE_COPYSIGN=1 -DHAVE_DECL_SIGNBIT=1
 -DHAVE_ACOSH=1 -DHAVE_ASINH=1 -DHAVE_ATANH=1 -DHAVE_ERF=1 -DHAVE_ERFC=1
 -DHAVE_EXP2=1 -DHAVE_LOG2=1 -DHAVE_STRUCT_STAT_ST_BLKSIZE=1
 -DHAVE_STRUCT_STAT_ST_BLOCKS=1 -DHAVE_STRUCT_STAT_ST_RDEV=1
 -DHAVE_STRUCT_TM_TM_ZONE=1 -DHAVE_TM_ZONE=1 -DUSE_READLINE=1
 -DEXCEPTION_IN_MATH=1 -DRETSIGTYPE=void -DHAVE_DECL_SYS_SIGLIST=1
 -DHAVE_POSIX_SIGNALS=1 -DHAVE_GETRUSAGE=1 -DHAVE_TIMES=1
 -DYYTEXT_POINTER=1 -DGNUPLOT_BINARY="gnuplot" -DGNUPLOT_HAS_FRAMES=

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

 EDITOR = emacs
 EXEC_PATH = 
/usr/libexec/octave/2.9.9/site/exec/x86_64-redhat-linux-gnu:/usr/libexec/octave/api-v22/site/exec/x86_64-redhat-linux-gnu:/usr/libexec/octave/site/exec/x86_64-redhat-linux-gnu:/usr/libexec/octave/2.9.9/exec/x86_64-redhat-linux-gnu:/usr/bin:/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/michel/bin:/opt/chez/bin:/home/michel/opt/groovy/bin:/opt/python2.4/bin
 IMAGE_PATH = .:/usr/share/octave/2.9.9/imagelib
 PAGER = less -e -X -P'-- less ?pB(%pB\%):--. (f)orward, (b)ack, (q)uit$'
 PS1 = \s:\#>
 PS2 = >
 PS4 = +
 automatic_replot = 1
 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/michel/.octave_hist
 history_size = 1024
 ignore_function_time_stamp = system
 info_file = /usr/share/info/octave.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