the formatting regular.]
_a (Unix.U):
- This variable defines the extension used for ordinary libraries.
+ This variable defines the extension used for ordinary library files.
For unix, it is '.a'. The '.' is included. Other possible
values include '.lib'.
_exe (Unix.U):
This variable defines the extension used for executable files.
- For unix it is empty. Other possible values include '.exe'.
+ DJGPP, Cygwin and OS/2 use '.exe'. Stratus VOS uses '.pm'.
+ On operating systems which do not require a specific extension
+ for executable files, this variable is empty.
_o (Unix.U):
This variable defines the extension used for object files.
is most often a local directory such as /usr/local/bin. Programs using
this variable must be prepared to deal with ~name substitution.
-bincompat5005 (bincompat5005.U):
- This variable contains y if this version of Perl should be
- binary-compatible with Perl 5.005.
-
binexp (bin.U):
This is the same as the bin variable, but is filename expanded at
configuration time, for use in your makefiles.
the value is reset to a plain "byacc" and is not useful.
byteorder (byteorder.U):
- This variable holds the byte order. In the following, larger digits
- indicate more significance. The variable byteorder is either 4321
- on a big-endian machine, or 1234 on a little-endian, or 87654321
- on a Cray ... or 3412 with weird order !
+ This variable holds the byte order in a UV. In the following,
+ larger digits indicate more significance. The variable byteorder
+ is either 4321 on a big-endian machine, or 1234 on a little-endian,
+ or 87654321 on a Cray ... or 3412 with weird order !
c (n.U):
This variable contains the \c string if that is what causes the echo
This variable conditionally defines the HAS_BCOPY symbol if
the bcopy() routine is available to copy strings.
-d_bincompat5005 (bincompat5005.U):
- This variable conditionally defines BINCOMPAT5005 so that embed.h
- can take special action if this version of Perl should be
- binary-compatible with Perl 5.005. This is impossible for builds
- that use features like threads and multiplicity it is always $undef
- for those versions.
-
d_bsd (Guess.U):
This symbol conditionally defines the symbol BSD when running on a
BSD system.
This variable indicates whether a variable of type nvtype
can preserve all the bits a variable of type uvtype.
-d_nv_preserves_uv_bits (perlxv.U):
- This variable indicates how many of bits type uvtype
- a variable nvtype can preserve.
-
d_off64_t (d_off64_t.U):
This symbol will be defined if the C compiler supports off64_t.
libs (libs.U):
This variable holds the additional libraries we want to use.
- It is up to the Makefile to deal with it.
+ It is up to the Makefile to deal with it. The list can be empty.
libsdirs (libs.U):
This variable holds the directory names aka dirnames of the libraries
full pathname (if any) of the nroff program. After Configure runs,
the value is reset to a plain "nroff" and is not useful.
+nv_preserves_uv_bits (perlxv.U):
+ This variable indicates how many of bits type uvtype
+ a variable nvtype can preserve.
+
nveformat (perlxvf.U):
This variable contains the format string used for printing
a Perl NV using %e-ish floating point format.
See INSTALL for how this works.
The versioned site_perl directory was introduced in 5.005,
so that is the lowest possible value.
- Since this can depend on compile time options (such as
- bincompat) it is set by Configure. Other non-default sources
+ Since this can depend on compile time options
+ it is set by Configure. Other non-default sources
of potential incompatibility, such as multiplicity, threads,
debugging, 64bits, sfio, etc., are not checked for currently,
though in principle we could go snooping around in old