was extracted. Make sure you read and understand the terms under
which this software is being distributed.
-Also make sure you read L<BUGS AND CAVEATS> below for the
+Also make sure you read L</BUGS AND CAVEATS> below for the
known limitations of this port.
The INSTALL file in the perl top-level has much information that is
system). Currently, this port is capable of using one of the
following compilers on the Intel x86 architecture:
- Borland C++ version 5.02 or later
- Microsoft Visual C++ version 6.0 or later (*)
- Gcc by mingw.org gcc version 3.2 or later
- Gcc by mingw-w64.sf.net gcc version 4.4.3 or later
-
-(*) NOTE: Support for Visual C++ 2010 is not yet complete. This latest
-version of VC++ introduces some new C<errno.h> constants which conflict
-with Perl's current setting of them to match the corresponding WSAE*
-constants' values. Until this issue is resolved you will see several test
-failures (in F<cpan/autodie/t/flock.t>, F<dist/IO/t/io_multihomed.t >,
-F<dist/Net-Ping/t/450_service.t> and F<dist/Net-Ping/t/510_ping_udp.t>)
-and experience other problems in code involving sockets.
+ Microsoft Visual C++ version 6.0 or later
+ Intel C++ Compiler (experimental)
+ Gcc by mingw.org gcc version 3.4.5 or later
+ with runtime < 3.21
+ Gcc by mingw-w64.org gcc version 4.4.3 or later
Note that the last two of these are actually competing projects both
delivering complete gcc toolchain for MS Windows:
-- http://mingw.org - delivers gcc toolchain targeting 32-bit Windows
- platform.
+=over 4
+
+=item L<http://mingw.org>
-- http://mingw-w64.sf.net - delivers gcc toolchain targeting both 64-bit
- Windows and 32-bit Windows platforms (despite the project name "mingw-w64"
- they are not only 64-bit oriented). They deliver the native gcc compilers
- and cross-compilers that are also supported by perl's makefile.
+Delivers gcc toolchain targeting 32-bit Windows platform.
-The Borland C++ and Microsoft Visual C++ compilers are also now being given
-away free. The Borland compiler is available as "Borland C++ Compiler Free
-Command Line Tools" and is the same compiler that ships with the full
-"Borland C++ Builder" product. The Microsoft compiler is available as
-"Visual C++ Toolkit 2003" or "Visual C++ 2005/2008/2010 Express Edition" (and
-also as part of the ".NET Framework SDK") and is the same compiler that ships
-with "Visual C++ .NET 2003 Professional" or "Visual C++ 2005/2008/2010
-Professional" respectively.
+=item L<http://mingw-w64.org>
+
+Delivers gcc toolchain targeting both 64-bit Windows and 32-bit Windows
+platforms (despite the project name "mingw-w64" they are not only 64-bit
+oriented). They deliver the native gcc compilers and cross-compilers
+that are also supported by perl's makefile.
+
+=back
+
+The Microsoft Visual C++ compilers are also now being given away free. They are
+available as "Visual C++ Toolkit 2003" or "Visual C++ 2005-2019 Express [or
+Community, from 2017] Edition" (and also as part of the ".NET Framework SDK")
+and are the same compilers that ship with "Visual C++ .NET 2003 Professional"
+or "Visual C++ 2005-2019 Professional" respectively.
This port can also be built on IA64/AMD64 using:
Microsoft Platform SDK Nov 2001 (64-bit compiler and tools)
MinGW64 compiler (gcc version 4.4.3 or later)
-The Windows SDK can be downloaded from http://www.microsoft.com/.
-The MinGW64 compiler is available at http://sourceforge.net/projects/mingw-w64.
+The Windows SDK can be downloaded from L<https://developer.microsoft.com/windows/downloads/sdk-archive>.
+The MinGW64 compiler is available at L<http://mingw-w64.org>.
The latter is actually a cross-compiler targeting Win64. There's also a trimmed
down compiler (no java, or gfortran) suitable for building perl available at:
-http://strawberryperl.com/package/kmx/64_gcctoolchain/mingw64-w64-20100123-kmx-v2.zip
+L<http://strawberryperl.com/package/kmx/64_gcctoolchain/>
NOTE: If you're using a 32-bit compiler to build perl on a 64-bit Windows
operating system, then you should set the WIN64 environment variable to "undef".
This port fully supports MakeMaker (the set of modules that
is used to build extensions to perl). Therefore, you should be
able to build and install most extensions found in the CPAN sites.
-See L<Usage Hints for Perl on Windows> below for general hints about this.
+See L</Usage Hints for Perl on Windows> below for general hints about this.
=head2 Setting Up Perl on Windows
=item Make
You need a "make" program to build the sources. If you are using
-Visual C++ or the Windows SDK tools, nmake will work. Builds using
-the Borland compiler or gcc need dmake.
-
-dmake is a freely available make that has very nice macro features
-and parallelability.
+Visual C++ or the Windows SDK tools, you can use nmake supplied with Visual C++
+or Windows SDK. You may also use, for Visual C++ or Windows SDK, dmake or gmake
+instead of nmake. dmake is open source software, but is not included with
+Visual C++ or Windows SDK. Builds using gcc need dmake or gmake. nmake is not
+supported for gcc builds. Parallel building is only supported with dmake and
+gmake, not nmake. When using dmake it is recommended to use dmake 4.13 or newer
+for parallel building. Older dmakes, in parallel mode, have very high CPU usage
+and pound the disk/filing system with duplicate I/O calls in an aggressive
+polling loop.
A port of dmake for Windows is available from:
- http://search.cpan.org/dist/dmake/
+L<https://metacpan.org/release/dmake>
Fetch and install dmake somewhere on your path.
-There exists a minor coexistence problem with dmake and Borland C++
-compilers. Namely, if a distribution has C files named with mixed
-case letters, they will be compiled into appropriate .obj-files named
-with all lowercase letters, and every time dmake is invoked
-to bring files up to date, it will try to recompile such files again.
-For example, Tk distribution has a lot of such files, resulting in
-needless recompiles every time dmake is invoked. To avoid this, you
-may use the script "sync_ext.pl" after a successful build. It is
-available in the win32 subdirectory of the Perl source distribution.
-
=item Command Shell
Use the default "cmd" shell that comes with Windows. Some versions of the
Make sure the path to the build directory does not contain spaces. The
build usually works in this circumstance, but some tests will fail.
-=item Borland C++
-
-If you are using the Borland compiler, you will need dmake.
-(The make that Borland supplies is seriously crippled and will not
-work for MakeMaker builds.)
-
-See L</"Make"> above.
-
=item Microsoft Visual C++
-The nmake that comes with Visual C++ will suffice for building.
-You will need to run the VCVARS32.BAT file, usually found somewhere
-like C:\Program Files\Microsoft Visual Studio\VC98\Bin.
-This will set your build environment.
-
-You can also use dmake to build using Visual C++; provided, however,
-you set OSRELEASE to "microsft" (or whatever the directory name
-under which the Visual C dmake configuration lives) in your environment
-and edit win32/config.vc to change "make=nmake" into "make=dmake". The
-latter step is only essential if you want to use dmake as your default
-make for building extensions using MakeMaker.
-
-=item Microsoft Visual C++ 2008/2010 Express Edition
-
-These free versions of Visual C++ 2008/2010 Professional contain the same
+The nmake that comes with Visual C++ will suffice for building. Visual C++
+requires that certain things be set up in the console before Visual C++ will
+sucessfully run. To make a console box be able to run the C compiler, you will
+need to beforehand, run C<vcvarsall.bat x86> to compile for x86-32 and for
+x86-64 C<vcvarsall.bat amd64>. On a typical install of a Microsoft C++
+compiler product, these batch files will already be in your C<PATH>
+environment variable so you may just type them without an absolute path into
+your console. If you need to find the absolute path to the batch file, it is
+usually found somewhere like
+C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC.
+With some newer Micrsoft C products (released after ~2004), the installer will
+put a shortcut in the start menu to launch a new console window with the
+console already set up for your target architecture (x86-32 or x86-64 or IA64).
+With the newer compilers, you may also use the older batch files if you choose
+so.
+
+=item Microsoft Visual C++ 2008-2019 Express/Community Edition
+
+These free versions of Visual C++ 2008-2019 Professional contain the same
compilers and linkers that ship with the full versions, and also contain
everything necessary to build Perl, rather than requiring a separate download
of the Windows SDK like previous versions did.
These packages can be downloaded by searching in the Download Center at
-http://www.microsoft.com/downloads/search.aspx?displaylang=en. (Providing exact
+L<https://www.microsoft.com/downloads/search.aspx?displaylang=en>. (Providing exact
links to these packages has proven a pointless task because the links keep on
changing so often.)
-Install Visual C++ 2008/2010 Express, then setup your environment using, e.g.
+Install Visual C++ 2008-2019 Express/Community, then setup your environment
+using, e.g.
- C:\Program Files\Microsoft Visual Studio 10.0\Common7\Tools\vsvars32.bat
+ C:\Program Files\Microsoft Visual Studio 12.0\Common7\Tools\vsvars32.bat
(assuming the default installation location was chosen).
Perl should now build using the win32/Makefile. You will need to edit that
-file to set CCTYPE to MSVC90FREE or MSVC100FREE first.
+file to set CCTYPE to one of MSVC90-MSVC142 first.
=item Microsoft Visual C++ 2005 Express Edition
SDK" components are required) for more header files and libraries.
These packages can both be downloaded by searching in the Download Center at
-http://www.microsoft.com/downloads/search.aspx?displaylang=en. (Providing exact
+L<http://www.microsoft.com/downloads/search.aspx?displaylang=en>. (Providing exact
links to these packages has proven a pointless task because the links keep on
changing so often.)
Install Visual C++ 2005 first, then the Platform SDK. Setup your environment
as follows (assuming default installation locations were chosen):
- SET PlatformSDKDir=C:\Program Files\Microsoft Platform SDK
+ SET PlatformSDKDir=C:\Program Files\Microsoft Platform SDK
- SET PATH=%SystemRoot%\system32;%SystemRoot%;C:\Program Files\Microsoft Visual Studio 8\Common7\IDE;C:\Program Files\Microsoft Visual Studio 8\VC\BIN;C:\Program Files\Microsoft Visual Studio 8\Common7\Tools;C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\bin;C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727;C:\Program Files\Microsoft Visual Studio 8\VC\VCPackages;%PlatformSDKDir%\Bin
+ SET PATH=%SystemRoot%\system32;%SystemRoot%;C:\Program Files\Microsoft Visual Studio 8\Common7\IDE;C:\Program Files\Microsoft Visual Studio 8\VC\BIN;C:\Program Files\Microsoft Visual Studio 8\Common7\Tools;C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\bin;C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727;C:\Program Files\Microsoft Visual Studio 8\VC\VCPackages;%PlatformSDKDir%\Bin
- SET INCLUDE=C:\Program Files\Microsoft Visual Studio 8\VC\INCLUDE;%PlatformSDKDir%\include
+ SET INCLUDE=C:\Program Files\Microsoft Visual Studio 8\VC\INCLUDE;%PlatformSDKDir%\include
- SET LIB=C:\Program Files\Microsoft Visual Studio 8\VC\LIB;C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\lib;%PlatformSDKDir%\lib
+ SET LIB=C:\Program Files\Microsoft Visual Studio 8\VC\LIB;C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\lib;%PlatformSDKDir%\lib
- SET LIBPATH=C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727
+ SET LIBPATH=C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727
(The PlatformSDKDir might need to be set differently depending on which version
you are using. Earlier versions installed into "C:\Program Files\Microsoft SDK",
Perl should now build using the win32/Makefile. You will need to edit that
file to set
- CCTYPE = MSVC80FREE
+ CCTYPE = MSVC80
and to set CCHOME, CCINCDIR and CCLIBDIR as per the environment setup above.
installed separately, but is included in the "Visual C++ Toolkit 2003" anyway.
These packages can all be downloaded by searching in the Download Center at
-http://www.microsoft.com/downloads/search.aspx?displaylang=en. (Providing exact
+L<https://www.microsoft.com/downloads/search.aspx?displaylang=en>. (Providing exact
links to these packages has proven a pointless task because the links keep on
changing so often.)
Setup your environment as follows (assuming default installation locations
were chosen):
- SET PlatformSDKDir=C:\Program Files\Microsoft Platform SDK
+ SET PlatformSDKDir=C:\Program Files\Microsoft Platform SDK
- SET PATH=%SystemRoot%\system32;%SystemRoot%;C:\Program Files\Microsoft Visual C++ Toolkit 2003\bin;%PlatformSDKDir%\Bin;C:\Program Files\Microsoft.NET\SDK\v1.1\Bin
+ SET PATH=%SystemRoot%\system32;%SystemRoot%;C:\Program Files\Microsoft Visual C++ Toolkit 2003\bin;%PlatformSDKDir%\Bin;C:\Program Files\Microsoft.NET\SDK\v1.1\Bin
- SET INCLUDE=C:\Program Files\Microsoft Visual C++ Toolkit 2003\include;%PlatformSDKDir%\include;C:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\include
+ SET INCLUDE=C:\Program Files\Microsoft Visual C++ Toolkit 2003\include;%PlatformSDKDir%\include;C:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\include
- SET LIB=C:\Program Files\Microsoft Visual C++ Toolkit 2003\lib;%PlatformSDKDir%\lib;C:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\lib
+ SET LIB=C:\Program Files\Microsoft Visual C++ Toolkit 2003\lib;%PlatformSDKDir%\lib;C:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\lib
(The PlatformSDKDir might need to be set differently depending on which version
you are using. Earlier versions installed into "C:\Program Files\Microsoft SDK",
installed by the .NET Framework SDK, but into a location such as the
following:
- C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322
+ C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322
Copy it from there to %PlatformSDKDir%\Bin
Perl. Make sure you are building within one of the "Build Environment"
shells available after you install the Platform SDK from the Start Menu.
-=item MinGW release 3 with gcc
+=item GCC
+
+Perl can be compiled with gcc from MinGW (version 3.4.5 or later) or from
+MinGW64 (version 4.4.3 or later). It can be downloaded here:
+
+L<http://www.mingw.org/>
+L<http://www.mingw-w64.org/>
+
+You also need dmake or gmake. See L</"Make"> above on how to get it.
-Perl can be compiled with gcc from MinGW release 3 and later (using gcc 3.2.x
-and later). It can be downloaded here:
+Note that the MinGW build currently requires a MinGW runtime version earlier
+than 3.21 (check __MINGW32_MAJOR_VERSION and __MINGW32_MINOR_VERSION).
- http://www.mingw.org/
+Note also that the C++ mode build currently fails with MinGW 3.4.5 and 4.7.2
+or later, and with MinGW64 64-bit 6.3.0 or later.
-You also need dmake. See L</"Make"> above on how to get it.
+=item Intel C++ Compiler
+
+Experimental support for using Intel C++ Compiler has been added. Edit
+win32/Makefile and pick the correct CCTYPE for the Visual C that Intel C was
+installed into. Also uncomment __ICC to enable Intel C on Visual C support.
+To set up the build environment, from the Start Menu run
+IA-32 Visual Studio 20__ mode or Intel 64 Visual Studio 20__ mode as
+appropriate. Then run nmake as usually in that prompt box.
+
+Only Intel C++ Compiler v12.1 has been tested. Other versions probably will
+work. Using Intel C++ Compiler instead of Visual C has the benefit of C99
+compatibility which is needed by some CPAN XS modules, while maintaining
+compatibility with Visual C object code and Visual C debugging infrastructure
+unlike GCC.
=back
Make sure you are in the "win32" subdirectory under the perl toplevel.
This directory contains a "Makefile" that will work with
versions of nmake that come with Visual C++ or the Windows SDK, and
-a dmake "makefile.mk" that will work for all supported compilers. The
-defaults in the dmake makefile are setup to build using MinGW/gcc.
+a GNU make "GNUmakefile" or dmake "makefile.mk" that will work for all
+supported compilers. The defaults in the gmake and dmake makefile are
+setup to build using MinGW/gcc.
=item *
-Edit the makefile.mk (or Makefile, if you're using nmake) and change
-the values of INST_DRV and INST_TOP. You can also enable various
-build flags. These are explained in the makefiles.
+Edit the GNUmakefile, makefile.mk (or Makefile, if you're using nmake)
+and change the values of INST_DRV and INST_TOP. You can also enable
+various build flags. These are explained in the makefiles.
Note that it is generally not a good idea to try to build a perl with
INST_DRV and INST_TOP set to a path that already exists from a previous
than the one being tested.
You will have to make sure that CCTYPE is set correctly and that
-CCHOME points to wherever you installed your compiler. If building with
-gcc-4.x.x, you'll also need to uncomment the assignment to GCC_4XX and
-uncomment the assignment to the appropriate GCCHELPERDLL in the makefile.mk.
+CCHOME points to wherever you installed your compiler. For GCC this
+should be the directory that contains the F<bin>, F<include> and
+F<lib> directories.
If building with the cross-compiler provided by
-mingw-w64.sourceforge.net you'll need to uncomment the line that sets
+mingw-w64.org you'll need to uncomment the line that sets
GCCCROSS in the makefile.mk. Do this only if it's the cross-compiler - ie
only if the bin folder doesn't contain a gcc.exe. (The cross-compiler
does not provide a gcc.exe, g++.exe, ar.exe, etc. Instead, all of these
may not be correct for some versions. Make sure the default exists
and is valid.
-You may also need to comment out the C<DELAYLOAD = ...> line in the
-Makefile if you're using VC++ 6.0 without the latest service pack and
-the linker reports an internal error.
-
-If you have either the source or a library that contains des_fcrypt(),
-enable the appropriate option in the makefile. A ready-to-use version
-of fcrypt.c, based on the version originally written by Eric Young at
-ftp://ftp.funet.fi/pub/crypt/mirrors/dsi/libdes/, is bundled with the
-distribution and CRYPT_SRC is set to use it.
-Alternatively, if you have built a library that contains des_fcrypt(),
-you can set CRYPT_LIB to point to the library name.
-Perl will also build without des_fcrypt(), but the crypt() builtin will
-fail at run time.
-
If you want build some core extensions statically into perl's dll, specify
them in the STATIC_EXT macro.
=item *
-Type "dmake" (or "nmake" if you are using that make).
+Type "dmake" ("gmake" for GNU make, or "nmake" if you are using that make).
This should build everything. Specifically, it will create perl.exe,
-perl513.dll at the perl toplevel, and various other extension dll's
+perl533.dll at the perl toplevel, and various other extension dll's
under the lib\auto directory. If the build fails for any reason, make
sure you have done the previous steps correctly.
+To try dmake's parallel mode, type "dmake -P2", where 2, is the maximum number
+of parallel jobs you want to run. A number of things in the build process will
+run in parallel, but there are serialization points where you will see just 1
+CPU maxed out. This is normal.
+
+Similarly you can build in parallel with GNU make, type "gmake -j2" to
+build with two parallel jobs, or higher for more.
+
+If you are advanced enough with building C code, here is a suggestion to speed
+up building perl, and the later C<make test>. Try to keep your PATH environmental
+variable with the least number of folders possible (remember to keep your C
+compiler's folders there). C<C:\WINDOWS\system32> or C<C:\WINNT\system32>
+depending on your OS version should be first folder in PATH, since "cmd.exe"
+is the most commonly launched program during the build and later testing.
+
=back
=head2 Testing Perl on Windows
-Type "dmake test" (or "nmake test"). This will run most of the tests from
-the testsuite (many tests will be skipped).
+Type "dmake test" (or "gmake test", "nmake test"). This will run most
+of the tests from the testsuite (many tests will be skipped).
There should be no test failures.
-(If you're using VC++ 2010 then you will currently see several test failures,
-as noted in the list of supported compilers above.)
+If you build with Visual C++ 2013 then three tests currently may fail with
+Daylight Saving Time related problems: F<t/io/fs.t>,
+F<cpan/HTTP-Tiny/t/110_mirror.t> and F<lib/File/Copy.t>. The failures are
+caused by bugs in the CRT in VC++ 2013 which are fixed in VC++2015 and
+later, as explained by Microsoft here:
+L<https://connect.microsoft.com/VisualStudio/feedback/details/811534/utime-sometimes-fails-to-set-the-correct-file-times-in-visual-c-2013>. In the meantime,
+if you need fixed C<stat> and C<utime> functions then have a look at the
+CPAN distribution Win32::UTCFileTime.
+
+If you build with Visual C++ 2015 or later then F<ext/XS-APItest/t/locale.t>
+may crash (after all its tests have passed). This is due to a regression in the
+Universal CRT introduced in the Windows 10 April 2018 Update, and will be fixed
+in the May 2019 Update, as explained here: L<https://developercommunity.visualstudio.com/content/problem/519486/setlocalelc-numeric-iso-latin-16-fails-then-succee.html>.
+
+If you build with certain versions (e.g. 4.8.1) of gcc from www.mingw.org then
+F<ext/POSIX/t/time.t> may fail test 17 due to a known bug in those gcc builds:
+see L<https://sourceforge.net/p/mingw/bugs/2152/>.
Some test failures may occur if you use a command shell other than the
native "cmd.exe", or if you are building from a path that contains
If you are running the tests from a emacs shell window, you may see
failures in op/stat.t. Run "dmake test-notty" in that case.
-If you're using the Borland compiler, you may see a failure in op/taint.t
-arising from the inability to find the Borland Runtime DLLs on the system
-default path. You will need to copy the DLLs reported by the messages
-from where Borland chose to install it, into the Windows system directory
-(usually somewhere like C:\WINDOWS\SYSTEM32) and rerun the test.
-
-If you're using Borland compiler versions 5.2 and below, you may run into
-problems finding the correct header files when building extensions. For
-example, building the "Tk" extension may fail because both perl and Tk
-contain a header file called "patchlevel.h". The latest Borland compiler
-(v5.5) is free of this misbehaviour, and it even supports an
-option -VI- for backward (bugward) compatibility for using the old Borland
-search algorithm to locate header files.
-
-If you run the tests on a FAT partition, you may see some failures for
-C<link()> related tests (I<op/write.t>, I<op/stat.t> ...). Testing on
-NTFS avoids these errors.
-
Furthermore, you should make sure that during C<make test> you do not
have any GNU tool packages in your path: some toolkits like Unixutils
include some tools (C<type> for instance) which override the Windows
ones and makes tests fail. Remove them from your path while testing to
avoid these errors.
-Please report any other failures as described under L<BUGS AND CAVEATS>.
+To see the output of specific failing tests run the harness from the t
+directory:
+
+ # assuming you're starting from the win32 directory
+ cd ..\win32
+ .\perl harness <list of tests>
+
+Please report any other failures as described under L</BUGS AND CAVEATS>.
=head2 Installation of Perl on Windows
-Type "dmake install" (or "nmake install"). This will put the newly
-built perl and the libraries under whatever C<INST_TOP> points to in the
-Makefile. It will also install the pod documentation under
-C<$INST_TOP\$INST_VER\lib\pod> and HTML versions of the same under
-C<$INST_TOP\$INST_VER\lib\pod\html>.
+Type "dmake install" (or "gmake install", "nmake install"). This will
+put the newly built perl and the libraries under whatever C<INST_TOP>
+points to in the Makefile. It will also install the pod documentation
+under C<$INST_TOP\$INST_VER\lib\pod> and HTML versions of the same
+under C<$INST_TOP\$INST_VER\lib\pod\html>.
To use the Perl you just installed you will need to add a new entry to
your PATH environment variable: C<$INST_TOP\bin>, e.g.
backtick commands via PERL5SHELL. See L<perlrun>.
Perl does not depend on the registry, but it can look up certain default
-values if you choose to put them there. Perl attempts to read entries from
-C<HKEY_CURRENT_USER\Software\Perl> and C<HKEY_LOCAL_MACHINE\Software\Perl>.
-Entries in the former override entries in the latter. One or more of the
-following entries (of type REG_SZ or REG_EXPAND_SZ) may be set:
-
- lib-$] version-specific standard library path to add to @INC
- lib standard library path to add to @INC
- sitelib-$] version-specific site library path to add to @INC
- sitelib site library path to add to @INC
- vendorlib-$] version-specific vendor library path to add to @INC
- vendorlib vendor library path to add to @INC
- PERL* fallback for all %ENV lookups that begin with "PERL"
+values if you choose to put them there unless disabled at build time with
+USE_NO_REGISTRY. On Perl process start Perl checks if
+C<HKEY_CURRENT_USER\Software\Perl> and C<HKEY_LOCAL_MACHINE\Software\Perl>
+exist. If the keys exists, they will be checked for remainder of the Perl
+process's run life for certain entries. Entries in
+C<HKEY_CURRENT_USER\Software\Perl> override entries in
+C<HKEY_LOCAL_MACHINE\Software\Perl>. One or more of the following entries
+(of type REG_SZ or REG_EXPAND_SZ) may be set in the keys:
+
+ lib-$] version-specific standard library path to add to @INC
+ lib standard library path to add to @INC
+ sitelib-$] version-specific site library path to add to @INC
+ sitelib site library path to add to @INC
+ vendorlib-$] version-specific vendor library path to add to @INC
+ vendorlib vendor library path to add to @INC
+ PERL* fallback for all %ENV lookups that begin with "PERL"
Note the C<$]> in the above is not literal. Substitute whatever version
of perl you want to honor that entry, e.g. C<5.6.0>. Paths must be
character is the double quote ("). It can be used to protect spaces
and other special characters in arguments.
-The Windows documentation has almost no description of how the
-quoting rules are implemented, but here are some general observations
-based on experiments: The C runtime breaks arguments at spaces and
-passes them to programs in argc/argv. Double quotes can be used to
-prevent arguments with spaces in them from being split up. You can
-put a double quote in an argument by escaping it with a backslash and
-enclosing the whole argument within double quotes. The backslash and
-the pair of double quotes surrounding the argument will be stripped by
-the C runtime.
+The Windows documentation describes the shell parsing rules here:
+L<https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/cmd>
+and the C runtime parsing rules here:
+L<https://msdn.microsoft.com/en-us/library/17w5ykft%28v=VS.100%29.aspx>.
+
+Here are some further observations based on experiments: The C runtime
+breaks arguments at spaces and passes them to programs in argc/argv.
+Double quotes can be used to prevent arguments with spaces in them from
+being split up. You can put a double quote in an argument by escaping
+it with a backslash and enclosing the whole argument within double quotes.
+The backslash and the pair of double quotes surrounding the argument will
+be stripped by the C runtime.
The file redirection characters "E<lt>", "E<gt>", and "|" can be quoted by
double quotes (although there are suggestions that this may not always
The Comprehensive Perl Archive Network (CPAN) offers a wealth
of extensions, some of which require a C compiler to build.
-Look in http://www.cpan.org/ for more information on CPAN.
+Look in L<https://www.cpan.org/> for more information on CPAN.
Note that not all of the extensions available from CPAN may work
in the Windows environment; you should check the information at
-http://testers.cpan.org/ before investing too much effort into
+L<https://www.cpantesters.org/> before investing too much effort into
porting modules that don't readily build.
Most extensions (whether they require a C compiler or not) can
either get dmake from the location mentioned earlier or get an
old version of nmake reportedly available from:
- http://download.microsoft.com/download/vc15/Patch/1.52/W95/EN-US/nmake15.exe
+L<http://download.microsoft.com/download/vc15/Patch/1.52/W95/EN-US/nmake15.exe>
Another option is to use the make written in Perl, available from
CPAN.
- http://www.cpan.org/modules/by-module/Make/
+L<https://www.cpan.org/modules/by-module/Make/>
-You may also use dmake. See L</"Make"> above on how to get it.
+You may also use dmake or gmake. See L</"Make"> above on how to get it.
Note that MakeMaker actually emits makefiles with different syntax
depending on what 'make' it thinks you are using. Therefore, it is
If a module implements XSUBs, you will need one of the supported
C compilers. You must make sure you have set up the environment for
-the compiler for command-line compilation.
+the compiler for command-line compilation before running C<perl Makefile.PL>
+or any invocation of make.
If a module does not build for some reason, look carefully for
why it failed, and report problems to the module author. If
it looks like the extension building support is at fault, report
-that with full details of how the build failed using the perlbug
-utility.
+that with full details of how the build failed using the GitHub
+issue tracker at L<https://github.com/Perl/perl5/issues>.
=item Command-line Wildcard Expansion
4) you can extend the method to add any customizations (or even
entirely different kinds of wildcard expansion).
- C:\> copy con c:\perl\lib\Wild.pm
- # Wild.pm - emulate shell @ARGV expansion on shells that don't
- use File::DosGlob;
- @ARGV = map {
- my @g = File::DosGlob::glob($_) if /[*?]/;
- @g ? @g : $_;
- } @ARGV;
- 1;
- ^Z
- C:\> set PERL5OPT=-MWild
- C:\> perl -le "for (@ARGV) { print }" */*/perl*.c
- p4view/perl/perl.c
- p4view/perl/perlio.c
- p4view/perl/perly.c
- perl5.005/win32/perlglob.c
- perl5.005/win32/perllib.c
- perl5.005/win32/perlglob.c
- perl5.005/win32/perllib.c
- perl5.005/win32/perlglob.c
- perl5.005/win32/perllib.c
+ C:\> copy con c:\perl\lib\Wild.pm
+ # Wild.pm - emulate shell @ARGV expansion on shells that don't
+ use File::DosGlob;
+ @ARGV = map {
+ my @g = File::DosGlob::glob($_) if /[*?]/;
+ @g ? @g : $_;
+ } @ARGV;
+ 1;
+ ^Z
+ C:\> set PERL5OPT=-MWild
+ C:\> perl -le "for (@ARGV) { print }" */*/perl*.c
+ p4view/perl/perl.c
+ p4view/perl/perlio.c
+ p4view/perl/perly.c
+ perl5.005/win32/perlglob.c
+ perl5.005/win32/perllib.c
+ perl5.005/win32/perlglob.c
+ perl5.005/win32/perllib.c
+ perl5.005/win32/perlglob.c
+ perl5.005/win32/perllib.c
Note there are two distinct steps there: 1) You'll have to create
Wild.pm and put it in your perl lib directory. 2) You'll need to
the same as normal C<perl> on Windows, except that options like C<-h>
don't work (since they need a command-line window to print to).
-If you find bugs in perl, you can run C<perlbug> to create a
-bug report (you may have to send it manually if C<perlbug> cannot
-find a mailer on your system).
+If you find bugs in perl, you can report them to
+L<https://github.com/Perl/perl5/issues>.
=head1 BUGS AND CAVEATS
Norton AntiVirus interferes with the build process, particularly if
set to "AutoProtect, All Files, when Opened". Unlike large applications
the perl build process opens and modifies a lot of files. Having the
-the AntiVirus scan each and every one slows build the process significantly.
+AntiVirus scan each and every one slows build the process significantly.
Worse, with PERLIO=stdio the build process fails with peculiar messages
as the virus checker interacts badly with miniperl.exe writing configure
files (it seems to either catch file part written and treat it as suspicious,
but that may be just luck. Other AntiVirus software may have similar issues.
+A git GUI shell extension for Windows such as TortoiseGit will cause the build
+and later C<make test> to run much slower since every file is checked for its
+git status as soon as it is created and/or modified. TortoiseGit doesn't cause
+any test failures or build problems unlike the antivirus software described
+above, but it does cause similar slowness. It is suggested to use Task Manager
+to look for background processes which use high CPU amounts during the building
+process.
+
Some of the built-in functions do not act exactly as documented in
L<perlfunc>, and a few are not implemented at all. To avoid
surprises, particularly if you have had prior exposure to Perl
variable in the handler. Using signals under this port should
currently be considered unsupported.
-Please send detailed descriptions of any problems and solutions that
-you may find to E<lt>F<perlbug@perl.org>E<gt>, along with the output
-produced by C<perl -V>.
+Please report detailed descriptions of any problems and solutions that
+you may find at E<lt>L<https://github.com/Perl/perl5/issues>E<gt>,
+
along with the output produced by C<perl -V>.
=head1 ACKNOWLEDGEMENTS
at the time. Various people have made numerous and sundry hacks
since then.
-Borland support was added in 5.004_01 (Gurusamy Sarathy).
-
GCC/mingw32 support was added in 5.005 (Nick Ing-Simmons).
Support for PERL_OBJECT was added in 5.005 (ActiveState Tool Corp).
Support for 64-bit Windows added in 5.8 (ActiveState Corp).
-Last updated: 18 November 2010
+Last updated: 30 April 2019
=cut
https://perl5.git.perl.org / perl5.git / blobdiff