Merge branch 'bc/drop-ancient-libcurl-and-perl'

Drop support for older libcURL and Perl.

* bc/drop-ancient-libcurl-and-perl:
  gitweb: make use of s///r
  Require Perl 5.26.0
  INSTALL: document requirement for libcurl 7.61.0
  git-curl-compat: remove check for curl 7.56.0
  git-curl-compat: remove check for curl 7.53.0
  git-curl-compat: remove check for curl 7.52.0
  git-curl-compat: remove check for curl 7.44.0
  git-curl-compat: remove check for curl 7.43.0
  git-curl-compat: remove check for curl 7.39.0
  git-curl-compat: remove check for curl 7.34.0
  git-curl-compat: remove check for curl 7.25.0
  git-curl-compat: remove check for curl 7.21.5

Author: gitster

INSTALL

@@ -119,7 +119,7 @@ Issues of note:
 	- A POSIX-compliant shell is required to run some scripts needed
 	  for everyday use (e.g. "bisect", "request-pull").
 
-	- "Perl" version 5.8.1 or later is needed to use some of the
+	- "Perl" version 5.26.0 or later is needed to use some of the
 	  features (e.g. sending patches using "git send-email",
 	  interacting with svn repositories with "git svn").  If you can
 	  live without these, use NO_PERL.  Note that recent releases of
@@ -129,17 +129,12 @@ Issues of note:
 	  itself, e.g. Digest::MD5, File::Spec, File::Temp, Net::Domain,
 	  Net::SMTP, and Time::HiRes.
 
-	- git-imap-send needs the OpenSSL library to talk IMAP over SSL if
-	  you are using libcurl older than 7.34.0.  Otherwise you can use
-	  NO_OPENSSL without losing git-imap-send.
-
 	- "libcurl" library is used for fetching and pushing
 	  repositories over http:// or https://, as well as by
-	  git-imap-send if the curl version is >= 7.34.0. If you do
-	  not need that functionality, use NO_CURL to build without
-	  it.
+	  git-imap-send. If you do not need that functionality,
+	  use NO_CURL to build without it.
 
-	  Git requires version "7.21.3" or later of "libcurl" to build
+	  Git requires version "7.61.0" or later of "libcurl" to build
 	  without NO_CURL. This version requirement may be bumped in
 	  the future.
 

contrib/diff-highlight/DiffHighlight.pm

@@ -1,6 +1,6 @@
 package DiffHighlight;
 
-use 5.008001;
+require v5.26;
 use warnings FATAL => 'all';
 use strict;
 

contrib/mw-to-git/Git/Mediawiki.pm

@@ -1,6 +1,6 @@
 package Git::Mediawiki;
 
-use 5.008001;
+require v5.26;
 use strict;
 use POSIX;
 use Git;

git-archimport.perl

@@ -54,7 +54,7 @@ =head1 Devel Notes
 
 =cut
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings;
 use Getopt::Std;

git-curl-compat.h

@@ -28,104 +28,6 @@
  * introduced, oldest first, in the official version of cURL library.
  */
 
-/**
- * CURL_SOCKOPT_OK was added in 7.21.5, released in April 2011.
- */
-#if LIBCURL_VERSION_NUM < 0x071505
-#define CURL_SOCKOPT_OK 0
-#endif
-
-/**
- * CURLOPT_TCP_KEEPALIVE was added in 7.25.0, released in March 2012.
- */
-#if LIBCURL_VERSION_NUM >= 0x071900
-#define GITCURL_HAVE_CURLOPT_TCP_KEEPALIVE 1
-#endif
-
-
-/**
- * CURLOPT_LOGIN_OPTIONS was added in 7.34.0, released in December
- * 2013.
- *
- * If we start requiring 7.34.0 we might also be able to remove the
- * code conditional on USE_CURL_FOR_IMAP_SEND in imap-send.c, see
- * 1e16b255b95 (git-imap-send: use libcurl for implementation,
- * 2014-11-09) and the check it added for "072200" in the Makefile.
-
- */
-#if LIBCURL_VERSION_NUM >= 0x072200
-#define GIT_CURL_HAVE_CURLOPT_LOGIN_OPTIONS 1
-#endif
-
-/**
- * CURL_SSLVERSION_TLSv1_[012] was added in 7.34.0, released in
- * December 2013.
- */
-#if LIBCURL_VERSION_NUM >= 0x072200
-#define GIT_CURL_HAVE_CURL_SSLVERSION_TLSv1_0
-#endif
-
-/**
- * CURLOPT_PINNEDPUBLICKEY was added in 7.39.0, released in November
- * 2014. CURLE_SSL_PINNEDPUBKEYNOTMATCH was added in that same version.
- */
-#if LIBCURL_VERSION_NUM >= 0x072c00
-#define GIT_CURL_HAVE_CURLOPT_PINNEDPUBLICKEY 1
-#define GIT_CURL_HAVE_CURLE_SSL_PINNEDPUBKEYNOTMATCH 1
-#endif
-
-/**
- * CURL_HTTP_VERSION_2 was added in 7.43.0, released in June 2015.
- *
- * The CURL_HTTP_VERSION_2 alias (but not CURL_HTTP_VERSION_2_0) has
- * always been a macro, not an enum field (checked on curl version
- * 7.78.0)
- */
-#if LIBCURL_VERSION_NUM >= 0x072b00
-#define GIT_CURL_HAVE_CURL_HTTP_VERSION_2 1
-#endif
-
-/**
- * CURLSSLOPT_NO_REVOKE was added in 7.44.0, released in August 2015.
- *
- * The CURLSSLOPT_NO_REVOKE is, has always been a macro, not an enum
- * field (checked on curl version 7.78.0)
- */
-#if LIBCURL_VERSION_NUM >= 0x072c00
-#define GIT_CURL_HAVE_CURLSSLOPT_NO_REVOKE 1
-#endif
-
-/**
- * CURLOPT_PROXY_CAINFO was added in 7.52.0, released in August 2017.
- */
-#if LIBCURL_VERSION_NUM >= 0x073400
-#define GIT_CURL_HAVE_CURLOPT_PROXY_CAINFO 1
-#endif
-
-/**
- * CURLOPT_PROXY_{KEYPASSWD,SSLCERT,SSLKEY} was added in 7.52.0,
- * released in August 2017.
- */
-#if LIBCURL_VERSION_NUM >= 0x073400
-#define GIT_CURL_HAVE_CURLOPT_PROXY_KEYPASSWD 1
-#endif
-
-/**
- * CURL_SSLVERSION_TLSv1_3 was added in 7.53.0, released in February
- * 2017.
- */
-#if LIBCURL_VERSION_NUM >= 0x073400
-#define GIT_CURL_HAVE_CURL_SSLVERSION_TLSv1_3 1
-#endif
-
-/**
- * CURLSSLSET_{NO_BACKENDS,OK,TOO_LATE,UNKNOWN_BACKEND} were added in
- * 7.56.0, released in September 2017.
- */
-#if LIBCURL_VERSION_NUM >= 0x073800
-#define GIT_CURL_HAVE_CURLSSLSET_NO_BACKENDS
-#endif
-
 /**
  * Versions before curl 7.66.0 (September 2019) required manually setting the
  * transfer-encoding for a streaming POST; after that this is handled

git-cvsexportcommit.perl

@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings;
 use Getopt::Std;

git-cvsimport.perl

@@ -13,7 +13,7 @@
 # The head revision is on branch "origin" by default.
 # You can change that with the '-o' option.
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings;
 use Getopt::Long;

git-cvsserver.perl

@@ -15,7 +15,7 @@
 ####
 ####
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings;
 use bytes;

git-send-email.perl

@@ -16,7 +16,7 @@
 #    and second line is the subject of the message.
 #
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : ();
 use Getopt::Long;

git-svn.perl

@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Copyright (C) 2006, Eric Wong <[email protected]>
 # License: GPL v2 or later
-use 5.008001;
+require v5.26;
 use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : ();
 use strict;
 use vars qw/	$AUTHOR $VERSION