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1 | =head1 NAME |
2 | |
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3 | perldelta - what's new for perl v5.6 (as of v5.005_58) |
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4 | |
5 | =head1 DESCRIPTION |
6 | |
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7 | This is an unsupported alpha release, meant for intrepid Perl developers |
8 | only. The included sources may not even build correctly on some platforms. |
9 | Subscribing to perl5-porters is the best way to monitor and contribute |
10 | to the progress of development releases (see www.perl.org for info). |
11 | |
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12 | This document describes differences between the 5.005 release and this one. |
13 | |
14 | =head1 Incompatible Changes |
15 | |
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16 | =head2 Perl Source Incompatibilities |
17 | |
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18 | TODO |
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19 | |
20 | =head2 C Source Incompatibilities |
21 | |
22 | =over 4 |
23 | |
24 | =item C<PERL_POLLUTE> |
25 | |
26 | Release 5.005 grandfathered old global symbol names by providing preprocessor |
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27 | macros for extension source compatibility. As of release 5.6, these |
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28 | preprocessor definitions are not available by default. You need to explicitly |
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29 | compile perl with C<-DPERL_POLLUTE> to get these definitions. For |
30 | extensions still using the old symbols, this option can be |
2aea4d40 |
31 | specified via MakeMaker: |
32 | |
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33 | perl Makefile.PL POLLUTE=1 |
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34 | |
f29c64d6 |
35 | =item C<PERL_IMPLICIT_CONTEXT> |
36 | |
37 | This new build option provides a set of macros for all API functions |
38 | such that an implicit interpreter/thread context argument is passed to |
39 | every API function. As a result of this, something like C<sv_setsv(foo,bar)> |
2c2d71f5 |
40 | amounts to a macro invocation that actually translates to something like |
f29c64d6 |
41 | C<Perl_sv_setsv(my_perl,foo,bar)>. While this is generally expected |
42 | to not have any significant source compatibility issues, the difference |
43 | between a macro and a real function call will need to be considered. |
44 | |
2c2d71f5 |
45 | This means that there B<is> a source compatibility issue as a result of |
46 | this if your extensions attempt to use pointers to any of the Perl API |
47 | functions. |
48 | |
f29c64d6 |
49 | Note that the above issue is not relevant to the default build of |
50 | Perl, whose interfaces continue to match those of prior versions |
51 | (but subject to the other options described here). |
52 | |
53 | For testing purposes, the 5.005_58 release automatically enables |
54 | PERL_IMPLICIT_CONTEXT whenever Perl is built with -Dusethreads or |
55 | -Dusemultiplicity. |
56 | |
2c2d71f5 |
57 | See L<perlguts/"The Perl API"> for detailed information on the |
58 | ramifications of building Perl using this option. |
59 | |
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60 | =item C<PERL_POLLUTE_MALLOC> |
61 | |
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62 | Enabling Perl's malloc in release 5.005 and earlier caused |
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63 | the namespace of system versions of the malloc family of functions to |
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64 | be usurped by the Perl versions, since by default they used the |
65 | same names. |
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66 | |
67 | Besides causing problems on platforms that do not allow these functions to |
68 | be cleanly replaced, this also meant that the system versions could not |
69 | be called in programs that used Perl's malloc. Previous versions of Perl |
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70 | have allowed this behaviour to be suppressed with the HIDEMYMALLOC and |
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71 | EMBEDMYMALLOC preprocessor definitions. |
72 | |
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73 | As of release 5.6, Perl's malloc family of functions have default names |
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74 | distinct from the system versions. You need to explicitly compile perl with |
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75 | C<-DPERL_POLLUTE_MALLOC> to get the older behaviour. HIDEMYMALLOC |
76 | and EMBEDMYMALLOC have no effect, since the behaviour they enabled is now |
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77 | the default. |
78 | |
79 | Note that these functions do B<not> constitute Perl's memory allocation API. |
80 | See L<perlguts/"Memory Allocation"> for further information about that. |
81 | |
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82 | =item C<PL_na> and C<dTHR> Issues |
83 | |
84 | The C<PL_na> global is now thread local, so a C<dTHR> declaration is needed |
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85 | in the scope in which the global appears. XSUBs should handle this automatically, |
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86 | but if you have used C<PL_na> in support functions, you either need to |
87 | change the C<PL_na> to a local variable (which is recommended), or put in |
88 | a C<dTHR>. |
89 | |
90 | =back |
91 | |
cceca5ed |
92 | =head2 Compatible C Source API Changes |
93 | |
94 | =over |
95 | |
96 | =item C<PATCHLEVEL> is now C<PERL_VERSION> |
97 | |
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98 | The cpp macros C<PERL_REVISION>, C<PERL_VERSION>, and C<PERL_SUBVERSION> |
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99 | are now available by default from perl.h, and reflect the base revision, |
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100 | patchlevel, and subversion respectively. C<PERL_REVISION> had no |
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101 | prior equivalent, while C<PERL_VERSION> and C<PERL_SUBVERSION> were |
102 | previously available as C<PATCHLEVEL> and C<SUBVERSION>. |
103 | |
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104 | The new names cause less pollution of the B<cpp> namespace and reflect what |
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105 | the numbers have come to stand for in common practice. For compatibility, |
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106 | the old names are still supported when F<patchlevel.h> is explicitly |
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107 | included (as required before), so there is no source incompatibility |
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108 | from the change. |
cceca5ed |
109 | |
110 | =back |
111 | |
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112 | =head2 Binary Incompatibilities |
113 | |
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114 | The default build of this release can be made binary compatible with the |
115 | 5.005 release or its maintenance versions. Add -DPERL_BINCOMPAT_5005 |
116 | to ccflags in config.sh to achieve this. See INSTALL for further |
117 | information about adding build flags to config.sh. |
118 | |
119 | The usethreads or usemultiplicity builds are B<not> binary compatible |
120 | with the corresponding builds in 5.005. |
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121 | |
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122 | =head1 Core Changes |
123 | |
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124 | =head2 Unicode and UTF-8 support |
125 | |
126 | Perl can optionally use UTF-8 as its internal representation for character |
127 | strings. The C<use utf8> pragma enables this support in the current lexical |
128 | scope. See L<utf8> for more information. |
129 | |
130 | =head2 Lexically scoped warning categories |
131 | |
132 | You can now control the granularity of warnings emitted by perl at a finer |
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133 | level using the C<use warning> pragma. See L<warning> and L<perllexwarn> |
134 | for details. |
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135 | |
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136 | =head2 Binary numbers supported |
137 | |
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138 | Binary numbers are now supported as literals, in s?printf formats, and |
139 | C<oct()>: |
140 | |
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141 | $answer = 0b101010; |
142 | printf "The answer is: %b\n", oct("0b101010"); |
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143 | |
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144 | =head2 syswrite() ease-of-use |
145 | |
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146 | The length argument of C<syswrite()> is now optional. |
147 | |
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148 | =head2 64-bit support |
149 | |
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150 | Better 64-bit support -- but full support still a distant goal. One |
151 | must Configure with -Duse64bits to get Configure to probe for the |
152 | extent of 64-bit support. Depending on the platform (hints file) more |
153 | or less 64-awareness becomes available. As of 5.005_54 at least |
154 | somewhat 64-bit aware platforms are HP-UX 11 or better, Solaris 2.6 or |
155 | better, IRIX 6.2 or better. Naturally 64-bit platforms like Digital |
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156 | Unix and UNICOS also have 64-bit support. |
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157 | |
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158 | =head2 Better syntax checks on parenthesized unary operators |
159 | |
160 | Expressions such as: |
161 | |
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162 | print defined(&foo,&bar,&baz); |
163 | print uc("foo","bar","baz"); |
164 | undef($foo,&bar); |
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165 | |
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166 | used to be accidentally allowed in earlier versions, and produced |
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167 | unpredictable behaviour. Some produced ancillary warnings |
168 | when used in this way; others silently did the wrong thing. |
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169 | |
170 | The parenthesized forms of most unary operators that expect a single |
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171 | argument now ensure that they are not called with more than one |
172 | argument, making the cases shown above syntax errors. The usual |
173 | behaviour of: |
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174 | |
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175 | print defined &foo, &bar, &baz; |
176 | print uc "foo", "bar", "baz"; |
177 | undef $foo, &bar; |
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178 | |
179 | remains unchanged. See L<perlop>. |
180 | |
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181 | =head2 POSIX character class syntax [: :] supported |
182 | |
183 | For example to match alphabetic characters use /[[:alpha:]]/. |
184 | See L<perlre> for details. |
185 | |
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186 | =head2 Improved C<qw//> operator |
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187 | |
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188 | The C<qw//> operator is now evaluated at compile time into a true list |
189 | instead of being replaced with a run time call to C<split()>. This |
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190 | removes the confusing misbehaviour of C<qw//> in scalar context, which |
191 | had inherited that behaviour from split(). |
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192 | |
193 | Thus: |
194 | |
195 | $foo = ($bar) = qw(a b c); print "$foo|$bar\n"; |
196 | |
197 | now correctly prints "3|a", instead of "2|a". |
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198 | |
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199 | =head2 pack() format 'Z' supported |
200 | |
201 | The new format type 'Z' is useful for packing and unpacking null-terminated |
202 | strings. See L<perlfunc/"pack">. |
203 | |
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204 | =head2 pack() format modifier '!' supported |
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205 | |
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206 | The new format type modifier '!' is useful for packing and unpacking |
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207 | native shorts, ints, and longs. See L<perlfunc/"pack">. |
208 | |
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209 | =head2 pack() and unpack() support counted strings |
210 | |
211 | The template character '#' can be used to specify a counted string |
212 | type to be packed or unpacked. See L<perlfunc/"pack">. |
213 | |
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214 | =head2 $^X variables may now have names longer than one character |
215 | |
216 | Formerly, $^X was synonymous with ${"\cX"}, but $^XY was a syntax |
217 | error. Now variable names that begin with a control character may be |
218 | arbitrarily long. However, for compatibility reasons, these variables |
219 | I<must> be written with explicit braces, as C<${^XY}> for example. |
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220 | C<${^XYZ}> is synonymous with ${"\cXYZ"}. Variable names with more |
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221 | than one control character, such as C<${^XY^Z}>, are illegal. |
222 | |
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223 | The old syntax has not changed. As before, `^X' may be either a |
224 | literal control-X character or the two-character sequence `caret' plus |
225 | `X'. When braces are omitted, the variable name stops after the |
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226 | control character. Thus C<"$^XYZ"> continues to be synonymous with |
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227 | C<$^X . "YZ"> as before. |
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228 | |
229 | As before, lexical variables may not have names beginning with control |
230 | characters. As before, variables whose names begin with a control |
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231 | character are always forced to be in package `main'. All such variables |
232 | are reserved for future extensions, except those that begin with |
233 | C<^_>, which may be used by user programs and is guaranteed not to |
234 | acquire special meaning in any future version of Perl. |
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235 | |
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236 | =head1 Significant bug fixes |
237 | |
238 | =head2 E<lt>HANDLEE<gt> on empty files |
239 | |
240 | With C<$/> set to C<undef>, slurping an empty file returns a string of |
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241 | zero length (instead of C<undef>, as it used to) the first time the |
242 | HANDLE is read. Further reads yield C<undef>. |
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243 | |
244 | This means that the following will append "foo" to an empty file (it used |
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245 | to do nothing): |
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246 | |
247 | perl -0777 -pi -e 's/^/foo/' empty_file |
248 | |
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249 | The behaviour of: |
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250 | |
251 | perl -pi -e 's/^/foo/' empty_file |
252 | |
253 | is unchanged (it continues to leave the file empty). |
254 | |
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255 | =head2 C<eval '...'> improvements |
256 | |
257 | Line numbers (as reflected by caller() and most diagnostics) within |
258 | C<eval '...'> were often incorrect when here documents were involved. |
259 | This has been corrected. |
260 | |
261 | Lexical lookups for variables appearing in C<eval '...'> within |
262 | functions that were themselves called within an C<eval '...'> were |
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263 | searching the wrong place for lexicals. The lexical search now |
264 | correctly ends at the subroutine's block boundary. |
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265 | |
266 | Parsing of here documents used to be flawed when they appeared as |
267 | the replacement expression in C<eval 's/.../.../e'>. This has |
268 | been fixed. |
269 | |
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270 | =head2 Automatic flushing of output buffers |
271 | |
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272 | fork(), exec(), system(), qx//, and pipe open()s now flush buffers |
273 | of all files opened for output when the operation |
274 | was attempted. This mostly eliminates confusing |
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275 | buffering mishaps suffered by users unaware of how Perl internally |
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276 | handles I/O. |
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277 | |
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278 | =head2 Better diagnostics on meaningless filehandle operations |
279 | |
280 | Constructs such as C<open(E<lt>FHE<gt>)> and C<close(E<lt>FHE<gt>)> |
281 | are compile time errors. Attempting to read from filehandles that |
282 | were opened only for writing will now produce warnings (just as |
283 | writing to read-only filehandles does). |
284 | |
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285 | =head1 Supported Platforms |
286 | |
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287 | =over 4 |
288 | |
289 | =item * |
290 | |
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291 | VM/ESA is now supported. |
292 | |
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293 | =item * |
294 | |
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295 | Siemens BS2000 is now supported under the POSIX Shell. |
296 | |
297 | =item * |
298 | |
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299 | The Mach CThreads (NEXTSTEP, OPENSTEP) are now supported by the Thread |
300 | extension. |
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301 | |
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302 | =item * |
303 | |
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304 | GNU/Hurd is now supported. |
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305 | |
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306 | =item * |
307 | |
308 | Rhapsody is now supported. |
309 | |
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310 | =item * |
311 | |
312 | EPOC is is now supported (on Psion 5). |
313 | |
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314 | =back |
315 | |
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316 | =head1 New tests |
317 | |
318 | =over 4 |
319 | |
320 | =item op/io_const |
321 | |
322 | IO constants (SEEK_*, _IO*). |
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323 | |
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324 | =item op/io_dir |
325 | |
326 | Directory-related IO methods (new, read, close, rewind, tied delete). |
327 | |
328 | =item op/io_multihomed |
329 | |
330 | INET sockets with multi-homed hosts. |
331 | |
332 | =item op/io_poll |
333 | |
334 | IO poll(). |
335 | |
336 | =item op/io_unix |
337 | |
338 | UNIX sockets. |
339 | |
340 | =item op/filetest |
341 | |
342 | File test operators. |
343 | |
344 | =item op/lex_assign |
345 | |
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346 | Verify operations that access pad objects (lexicals and temporaries). |
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347 | |
348 | =back |
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349 | |
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350 | =head1 Modules and Pragmata |
351 | |
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352 | =head2 Modules |
353 | |
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354 | =over 4 |
355 | |
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356 | =item ByteLoader |
357 | |
358 | The ByteLoader is a dedication extension to generate and run |
359 | Perl bytecode. See L<ByteLoader>. |
360 | |
361 | =item B |
362 | |
363 | The Perl Compiler suite has been extensively reworked for this |
364 | release. |
365 | |
366 | =item Devel::DProf |
367 | |
368 | Devel::DProf, a Perl source code profiler has been added. |
369 | |
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370 | =item Dumpvalue |
371 | |
372 | Added Dumpvalue module provides screen dumps of Perl data. |
373 | |
374 | =item Benchmark |
375 | |
868cb350 |
376 | You can now run tests for I<n> seconds instead of guessing the right |
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377 | number of tests to run: e.g. timethese(-5, ...) will run each |
378 | code for at least 5 CPU seconds. Zero as the "number of repetitions" |
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379 | means "for at least 3 CPU seconds". The output format has also |
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380 | changed. For example: |
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381 | |
382 | use Benchmark;$x=3;timethese(-5,{a=>sub{$x*$x},b=>sub{$x**2}}) |
383 | |
384 | will now output something like this: |
385 | |
386 | Benchmark: running a, b, each for at least 5 CPU seconds... |
387 | a: 5 wallclock secs ( 5.77 usr + 0.00 sys = 5.77 CPU) @ 200551.91/s (n=1156516) |
388 | b: 4 wallclock secs ( 5.00 usr + 0.02 sys = 5.02 CPU) @ 159605.18/s (n=800686) |
389 | |
390 | New features: "each for at least N CPU seconds...", "wallclock secs", |
391 | and the "@ operations/CPU second (n=operations)". |
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392 | |
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393 | =item Devel::Peek |
394 | |
395 | The Devel::Peek module provides access to the internal representation |
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396 | of Perl variables and data. It is a data debugging tool for the XS programmer. |
f505c983 |
397 | |
b7d8191e |
398 | =item Fcntl |
399 | |
400 | More Fcntl constants added: F_SETLK64, F_SETLKW64, O_LARGEFILE for |
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401 | large (more than 4G) file access (64-bit support is not yet |
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402 | working, though, so no need to get overly excited), Free/Net/OpenBSD |
403 | locking behaviour flags F_FLOCK, F_POSIX, Linux F_SHLCK, and |
404 | O_ACCMODE: the mask of O_RDONLY, O_WRONLY, and O_RDWR. |
405 | |
f505c983 |
406 | =item File::Spec |
407 | |
408 | New methods have been added to the File::Spec module: devnull() returns |
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409 | the name of the null device (/dev/null on Unix) and tmpdir() the name of |
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410 | the temp directory (normally /tmp on Unix). There are now also methods |
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411 | to convert between absolute and relative filenames: abs2rel() and |
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412 | rel2abs(). For compatibility with operating systems that specify volume |
413 | names in file paths, the splitpath(), splitdir(), and catdir() methods |
f505c983 |
414 | have been added. |
415 | |
416 | =item File::Spec::Functions |
417 | |
418 | The new File::Spec::Functions modules provides a function interface |
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419 | to the File::Spec module. Allows shorthand |
f505c983 |
420 | |
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421 | $fullname = catfile($dir1, $dir2, $file); |
f505c983 |
422 | |
423 | instead of |
424 | |
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425 | $fullname = File::Spec->catfile($dir1, $dir2, $file); |
f505c983 |
426 | |
e16b8f49 |
427 | =item Math::BigInt |
428 | |
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429 | The logical operations C<E<lt>E<lt>>, C<E<gt>E<gt>>, C<&>, C<|>, |
e16b8f49 |
430 | and C<~> are now supported on bigints. |
431 | |
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432 | =item Math::Complex |
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433 | |
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434 | The accessor methods Re, Im, arg, abs, rho, and theta can now also |
868cb350 |
435 | act as mutators (accessor $z->Re(), mutator $z->Re(3)). |
b7d8191e |
436 | |
437 | =item Math::Trig |
438 | |
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439 | A little bit of radial trigonometry (cylindrical and spherical), |
440 | radial coordinate conversions, and the great circle distance were added. |
b7d8191e |
441 | |
f4b9d880 |
442 | =item SDBM_File |
443 | |
444 | An EXISTS method has been added to this module (and sdbm_exists() has |
445 | been added to the underlying sdbm library), so one can now call exists |
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446 | on an SDBM_File tied hash and get the correct result, rather than a |
f4b9d880 |
447 | runtime error. |
448 | |
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449 | =item Time::Local |
450 | |
451 | The timelocal() and timegm() functions used to silently return bogus |
452 | results when the date exceeded the machine's integer range. They |
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453 | now consistently croak() if the date falls in an unsupported range. |
06ef4121 |
454 | |
8fe0a5c4 |
455 | =item Win32 |
456 | |
457 | The error return value in list context has been changed for all functions |
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458 | that return a list of values. Previously these functions returned a list |
459 | with a single element C<undef> if an error occurred. Now these functions |
460 | return the empty list in these situations. This applies to the following |
8fe0a5c4 |
461 | functions: |
462 | |
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463 | Win32::FsType |
464 | Win32::GetOSVersion |
8fe0a5c4 |
465 | |
466 | The remaining functions are unchanged and continue to return C<undef> on |
467 | error even in list context. |
468 | |
469 | The Win32::SetLastError(ERROR) function has been added as a complement |
470 | to the Win32::GetLastError() function. |
471 | |
472 | The new Win32::GetFullPathName(FILENAME) returns the full absolute |
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473 | pathname for FILENAME in scalar context. In list context it returns |
474 | a two-element list containing the fully qualified directory name and |
8fe0a5c4 |
475 | the filename. |
476 | |
9fe6733a |
477 | =item DBM Filters |
478 | |
479 | A new feature called "DBM Filters" has been added to all the |
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480 | DBM modules--DB_File, GDBM_File, NDBM_File, ODBM_File, and SDBM_File. |
481 | DBM Filters add four new methods to each DBM module: |
9fe6733a |
482 | |
483 | filter_store_key |
484 | filter_store_value |
485 | filter_fetch_key |
486 | filter_fetch_value |
487 | |
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488 | These can be used to filter key-value pairs before the pairs are |
9fe6733a |
489 | written to the database or just after they are read from the database. |
490 | See L<perldbmfilter> for further information. |
491 | |
b7d8191e |
492 | =back |
3e8c4fa0 |
493 | |
494 | =head2 Pragmata |
495 | |
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496 | C<use utf8> to enable UTF-8 and Unicode support. |
43165c05 |
497 | |
498 | C<use caller 'encoding'> allows modules to inherit pragmatic attributes |
499 | from the caller's context. C<encoding> is currently the only supported |
500 | attribute. |
9d73390d |
501 | |
502 | Lexical warnings pragma, C<use warning;>, to control optional warnings. |
6c67e1bb |
503 | |
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504 | C<use filetest> to control the behaviour of filetests (C<-r> C<-w> ...). |
6c67e1bb |
505 | Currently only one subpragma implemented, "use filetest 'access';", |
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506 | that enables the use of access(2) or equivalent to check |
6c67e1bb |
507 | permissions instead of using stat(2) as usual. This matters |
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508 | in filesystems where there are ACLs (access control lists): the |
509 | stat(2) might lie, but access(2) knows better. |
6c67e1bb |
510 | |
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511 | =head1 Utility Changes |
512 | |
e02fdbd2 |
513 | Todo. |
514 | |
ba8251e8 |
515 | =head1 Documentation Changes |
516 | |
5fdc711f |
517 | =over 4 |
518 | |
519 | =item perlopentut.pod |
f8284313 |
520 | |
5fdc711f |
521 | A tutorial on using open() effectively. |
522 | |
523 | =item perlreftut.pod |
524 | |
525 | A tutorial that introduces the essentials of references. |
526 | |
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527 | =item perltootc.pod |
528 | |
529 | A tutorial on managing class data for object modules. |
530 | |
5fdc711f |
531 | =back |
e02fdbd2 |
532 | |
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533 | =head1 New Diagnostics |
534 | |
6b121555 |
535 | =item /%s/: Unrecognized escape \\%c passed through |
536 | |
537 | (W) You used a backslash-character combination which is not recognized |
7711098a |
538 | by Perl. This combination appears in an interpolated variable or a |
6b121555 |
539 | C<'>-delimited regular expression. |
540 | |
af8c498a |
541 | =item Filehandle %s opened only for output |
6b121555 |
542 | |
af8c498a |
543 | (W) You tried to read from a filehandle opened only for writing. If you |
544 | intended it to be a read-write filehandle, you needed to open it with |
545 | "+E<lt>" or "+E<gt>" or "+E<gt>E<gt>" instead of with "E<lt>" or nothing. If |
546 | you intended only to read from the file, use "E<lt>". See |
547 | L<perlfunc/open>. |
e02fdbd2 |
548 | |
06eaf0bc |
549 | =item Missing command in piped open |
550 | |
551 | (W) You used the C<open(FH, "| command")> or C<open(FH, "command |")> |
552 | construction, but the command was missing or blank. |
553 | |
af8c498a |
554 | =item Unrecognized escape \\%c passed through |
555 | |
556 | (W) You used a backslash-character combination which is not recognized |
557 | by Perl. |
558 | |
f10b0346 |
559 | =item defined(@array) is deprecated |
69794302 |
560 | |
561 | (D) defined() is not usually useful on arrays because it checks for an |
562 | undefined I<scalar> value. If you want to see if the array is empty, |
563 | just use C<if (@array) { # not empty }> for example. |
564 | |
f10b0346 |
565 | =item defined(%hash) is deprecated |
69794302 |
566 | |
567 | (D) defined() is not usually useful on hashes because it checks for an |
568 | undefined I<scalar> value. If you want to see if the hash is empty, |
569 | just use C<if (%hash) { # not empty }> for example. |
570 | |
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571 | =head1 Obsolete Diagnostics |
572 | |
e02fdbd2 |
573 | Todo. |
574 | |
04d420f9 |
575 | =head1 Configuration Changes |
576 | |
27806c82 |
577 | =head2 installusrbinperl |
578 | |
04d420f9 |
579 | You can use "Configure -Uinstallusrbinperl" which causes installperl |
580 | to skip installing perl also as /usr/bin/perl. This is useful if you |
581 | prefer not to modify /usr/bin for some reason or another but harmful |
582 | because many scripts assume to find Perl in /usr/bin/perl. |
583 | |
27806c82 |
584 | =head2 SOCKS support |
555834d1 |
585 | |
27806c82 |
586 | You can use "Configure -Dusesocks" which causes Perl to probe |
587 | for the SOCKS proxy protocol library, http://www.socks.nec.com/ |
04d420f9 |
588 | |
ba8251e8 |
589 | =head1 BUGS |
590 | |
591 | If you find what you think is a bug, you might check the headers of |
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592 | articles recently posted to the comp.lang.perl.misc newsgroup. |
ba8251e8 |
593 | There may also be information at http://www.perl.com/perl/, the Perl |
594 | Home Page. |
595 | |
596 | If you believe you have an unreported bug, please run the B<perlbug> |
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597 | program included with your release. Make sure to trim your bug down |
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598 | to a tiny but sufficient test case. Your bug report, along with the |
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599 | output of C<perl -V>, will be sent off to perlbug@perl.com to be |
ba8251e8 |
600 | analysed by the Perl porting team. |
601 | |
602 | =head1 SEE ALSO |
603 | |
604 | The F<Changes> file for exhaustive details on what changed. |
605 | |
606 | The F<INSTALL> file for how to build Perl. |
607 | |
608 | The F<README> file for general stuff. |
609 | |
610 | The F<Artistic> and F<Copying> files for copyright information. |
611 | |
612 | =head1 HISTORY |
613 | |
614 | Written by Gurusamy Sarathy <F<gsar@umich.edu>>, with many contributions |
615 | from The Perl Porters. |
616 | |
617 | Send omissions or corrections to <F<perlbug@perl.com>>. |
618 | |
619 | =cut |