connect.c: remove superfluous 'else' in Curl_getconnectinfo

Closes #5912

CMake: remove explicit `CMAKE_ANSI_CFLAGS`

This variable was removed from cmake in commit
https://gitlab.kitware.com/cmake/cmake/commit/5a834b0bb0bc288. A later
CMake commit removes

CMake: remove explicit `CMAKE_ANSI_CFLAGS`

This variable was removed from cmake in commit
https://gitlab.kitware.com/cmake/cmake/commit/5a834b0bb0bc288. A later
CMake commit removes the variable from the tests, claiming that it was
removed in CMake 2.6

Reviewed-By: Peter Wu
Closes #5439

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libssh2: pass on the error from ssh_force_knownhost_key_type

Closes #5909

scripts/delta: add diffstat summary

... and make output more table-like

http_proxy: do not crash with HTTPS_PROXY and NO_PROXY set

... in case NO_PROXY takes an effect

Without this patch, the following command crashes:

$ GIT_CURL_VERBOSE=1

http_proxy: do not crash with HTTPS_PROXY and NO_PROXY set

... in case NO_PROXY takes an effect

Without this patch, the following command crashes:

$ GIT_CURL_VERBOSE=1 NO_PROXY=github.com HTTPS_PROXY=https://example.com \
git clone https://github.com/curl/curl.git

Minimal libcurl-based reproducer:

#include <curl/curl.h>

int main() {
CURL *curl = curl_easy_init();
if(curl) {
CURLcode ret;
curl_easy_setopt(curl, CURLOPT_URL, "https://github.com/");
curl_easy_setopt(curl, CURLOPT_PROXY, "example.com");
/* set the proxy type */
curl_easy_setopt(curl, CURLOPT_PROXYTYPE, CURLPROXY_HTTPS);
curl_easy_setopt(curl, CURLOPT_NOPROXY, "github.com");
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
ret = curl_easy_perform(curl);
curl_easy_cleanup(curl);
return ret;
}
return -1;
}

Assisted-by: Kamil Dudka
Bug: https://bugzilla.redhat.com/1873327
Closes #5902

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travis: add a CI job with openssl3 (from git master)

Closes #5908

openssl: avoid error conditions when importing native CA

The code section that is OpenSSL 3+ specific now uses the same logic as
is used in the version < 3 section. It caused a compiler

openssl: avoid error conditions when importing native CA

The code section that is OpenSSL 3+ specific now uses the same logic as
is used in the version < 3 section. It caused a compiler error without
it.

Closes #5907

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setopt: avoid curl_ on local variable

Closes #5906

mqtt.c: avoid curl_ prefix on local variable

Closes #5906

wildcard: strip "curl_" prefix from private symbols

Closes #5906

vtls: make it 'struct Curl_ssl_session'

Use uppercase C for internal symbols.

Closes #5906

curl_threads: make it 'struct Curl_actual_call'

Internal names should not be prefixed "curl_"

Closes #5906

schannel: make it 'struct Curl_schannel*'

As internal global names should use captical C.

Closes #5906

hash: make it 'struct Curl_hash'

As internal global names should use captical C.

Closes #5906

llist: make it "struct Curl_llist"

As internal global names should use captical C.

Closes #5906

telnet.c: depend on static requirement of WinSock version 2

Drop dynamic loading of ws2_32.dll and instead rely on the
imported version which is now required to be at least 2.2.

telnet.c: depend on static requirement of WinSock version 2

Drop dynamic loading of ws2_32.dll and instead rely on the
imported version which is now required to be at least 2.2.

Reviewed-by: Marcel Raad
Reviewed-by: Jay Satiro
Reviewed-by: Daniel Stenberg
Reviewed-by: Viktor Szakats

Closes #5854

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win32: drop support for WinSock version 1, require version 2

IPv6, telnet and now also the multi API require WinSock
version 2 which is available starting with Windows 95.

There

win32: drop support for WinSock version 1, require version 2

IPv6, telnet and now also the multi API require WinSock
version 2 which is available starting with Windows 95.

Therefore we think it is time to drop support for version 1.

Reviewed-by: Marcel Raad
Reviewed-by: Jay Satiro
Reviewed-by: Daniel Stenberg
Reviewed-by: Viktor Szakats

Follow up to #5634
Closes #5854

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select: align poll emulation to return all relevant events

The poll emulation via select already consumes POLLRDNORM,
POLLWRNORM and POLLRDBAND as input events. Therefore it
should a

select: align poll emulation to return all relevant events

The poll emulation via select already consumes POLLRDNORM,
POLLWRNORM and POLLRDBAND as input events. Therefore it
should also return them as output events if signaled.

Also fix indentation in input event handling block.

Assisted-by: Jay Satiro
Reviewed-by: Daniel Stenberg

Replaces #5852
Closes #5883

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CI/azure: MQTT is now enabled by default

Reviewed-by: Daniel Stenberg

Follow up to #5858
Closes #5903

copyright.pl: ignore buildconf

test971: show test mismatches "inline"

lib/Makefile.am: bump VERSIONINFO due to new functions

... we're generally bad at this, but we are adding new functions for
this release.

Closes #5899

optiontable: use DEBUGBUILD

Follow-up to commit 6e18568ba38 (#5877)

cmdline-opts/gen.pl: generate nicer "See Also" in curl.1

If there are more than two items in the list, use commas for all but the
last separator which is set to 'and'. Reads better.

cmdline-opts/gen.pl: generate nicer "See Also" in curl.1

If there are more than two items in the list, use commas for all but the
last separator which is set to 'and'. Reads better.

Closes #5898

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curl.1: add see also no-progress-meter on two spots

Ref: #5894

Closes #5897