Doc: specify that the minimum supported version of Perl is 5.8.3.

Previously the docs just said "5.8 or later".  Experimentation shows
that while you can build on Unix from a git checkout with 5.8.0,
compiling recent PL/Perl requires at least 5.8.1, and you won't be
able to run the TAP tests with less than 5.8.3 because that's when
they added "prove".  (I do not have any information on just what the
MSVC build scripts require.)

Since all these versions are quite ancient, let's not split hairs
in the docs, but just say that 5.8.3 is the minimum requirement.

Discussion: https://postgr.es/m/16894.1501392088@sss.pgh.pa.us

diff --git a/doc/src/sgml/install-windows.sgml b/doc/src/sgml/install-windows.sgml
index 27e5d42fea201b3f4732837179549c3ff5d2aab5..6b1b23849e7cdc5e8eef62c3e17b61c4eb19fde6 100644 (file)
--- a/doc/src/sgml/install-windows.sgml
+++ b/doc/src/sgml/install-windows.sgml
@@ -173,7 +173,8 @@ $ENV{PATH}=$ENV{PATH} . ';c:\some\where\bison\bin';
       ActiveState Perl is required to run the build generation scripts. MinGW
       or Cygwin Perl will not work. It must also be present in the PATH.
       Binaries can be downloaded from
-      <ulink url="http://www.activestate.com"></> (Note: version 5.8 or later is required,
+      <ulink url="http://www.activestate.com"></>
+      (Note: version 5.8.3 or later is required,
       the free Standard Distribution is sufficient).
      </para></listitem>
     </varlistentry>

diff --git a/doc/src/sgml/installation.sgml b/doc/src/sgml/installation.sgml
index a06add4802c6552d53254181a5ec31a45f074ee1..4014b7bae4527e55e8f076655d00d9a6aa7a1e7e 100644 (file)
--- a/doc/src/sgml/installation.sgml
+++ b/doc/src/sgml/installation.sgml
@@ -163,6 +163,7 @@ su - postgres
       <application>PL/Perl</application> you need a full
       <productname>Perl</productname> installation, including the
       <filename>libperl</filename> library and the header files.
+      The minimum required version is <productname>Perl</productname> 5.8.3.
       Since <application>PL/Perl</application> will be a shared
       library, the <indexterm><primary>libperl</primary></indexterm>
       <filename>libperl</filename> library must be a shared library
@@ -330,7 +331,7 @@ su - postgres
        <primary>perl</primary>
       </indexterm>
 
-      <application>Perl</> 5.8 or later is needed to build from a Git checkout,
+      <application>Perl</> 5.8.3 or later is needed to build from a Git checkout,
       or if you changed the input files for any of the build steps that
       use Perl scripts.  If building on Windows you will need
       <application>Perl</> in any case.  <application>Perl</application> is