... when curl is built from distribution tarball

Closes #2856

Split off testing file names with double quotes into new test 1158.
Disable it for MSYS using a precheck as it doesn't support file names
with double quotes (but Cygwin does, for example).

Fixes https://github.com/curl/curl/issues/2796
Closes https://github.com/curl/curl/pull/2854

- Determine if perl is in the user's PATH by running perl.exe.

Prior to this change detection was done by checking the PATH for perl/
but that did not work in all cases (eg git install includes perl but
not in perl/ path).

Bug: https://github.com/curl/curl/pull/2865
Reported-by: Daniel Jeliński

- CURLOPT_HEADERFUNCTION: add newlines
- CURLOPT_INTERLEAVEFUNCTION: fix the description of 'userdata'
- CURLOPT_READDATA: mention crashes, same as in CURLOPT_WRITEDATA
- CURLOPT_READFUNCTION: rename 'instream' to 'userdata' and explain
  how to set it

Closes https://github.com/curl/curl/pull/2868

Pointed-out-by: Rikard Falkeborn
Closes https://github.com/curl/curl/pull/2860

On Windows, casting between unrelated function types is fine and
sometimes even necessary, so just use an intermediate cast to
(void (*) (void)) to silence the warning as described in [0].

[0] https://gcc.gnu.org/onlinedocs/gcc-8.1.0/gcc/Warning-Options.html

Closes https://github.com/curl/curl/pull/2860

Adds test 1522 for verification.

Reported-by: cjmsoregan
Fixes #2847
Closes #2864

Closes #2867

Follow-up to 298d2565
Coverity CID 1438387

Follow-up to 2de63ab1 and
0b87c963.

Closes https://github.com/curl/curl/pull/2862

Reported-by: Marcel Raad
Fixes #2861
Closes #2863

Fixes #2837
Closes #2858
Reported-by: Markus Elfring

Closes #2857

Previously, the macro TEST_HANG_TIMEOUT was unused, but since there is
looping going on, we might as well add timing instead of removing it.

Closes #2853

The macro has never been used, and it there is not really any place
where it would make sense to add timing checks.

Closes #2852

The macro seems to never have been used.

Closes #2852

Usage was removed in 5113ad04.

Closes #2852

Its usage was removed in
84ad1fd3.

Closes #2852

Their usage was removed in 3a145180.

Closes #2852

Fixes #2806
Closes #2843

... by making sure it uses the -I provided by pkg-config!

Reported-by: pszemus on github
Fixes #2848
Closes #2850

Somehow I didn't include the amended version of the previous fix. This
is the missing piece.

Pointed-out-by: Viktor Szakats

Significantly enhances upload performance on modern Windows versions.

Bug: https://curl.haxx.se/mail/lib-2018-07/0080.html
Closes #2762
Fixes #2224

This allows the use of PKCS#11 URI for certificates and keys without
setting the corresponding type as "ENG" and the engine as "pkcs11"
explicitly. If a PKCS#11 URI is provided for certificate, key,
proxy_certificate or proxy_key, the corresponding type is set as "ENG"
if not provided and the engine is set to "pkcs11" if not provided.

Acked-by: Nikos Mavrogiannopoulos
Closes #2333

Use standard CMake variable BUILD_SHARED_LIBS instead of introducing
custom option CURL_STATICLIB.

Use '-DBUILD_SHARED_LIBS=%SHARED%' in appveyor.yml.

Reviewed-by: Sergei Nikulov
Closes #2755

Closes #2753

Reviewed-by: Jakub Zakrzewski
Reviewed-by: Sergei Nikulov
Closes #2753

... as building on 10.13.x before 10.13.4 leads to link errors.

Assisted-by: Nick Zitzmann
Fixes #2835
Closes #2845

Since it will slip and the version is the important part there, not the
date.

This restores the ability to build a static lib with
--disable-symbol-hiding to keep non-curl_ symbols.

Researched-by: Dan Fandrich
Reported-by: Ran Mozes
Fixes #2830
Closes #2831

addresses is only used in an infof call, which is a macro expanding to
nothing if CURL_DISABLE_VERBOSE_STRINGS is set.

Turns out that since we're using the native fnmatch function now when
available, and they simply disagree on a huge number of test patterns
that make it hard to test this function like this...

Fixes #2825

Follow-up to 09e401e0. The SMB protocol handler needs to use its
doing function too, which requires smb_do() to not mark itself as
done...

Closes #2822

Closes #2818

This change fixes a regression where redirect body would needlessly be
decompressed even though it was to be ignored anyway. As it happens this
causes secondary issues since there appears to be a bug in apache2 that
it in certain conditions generates a corrupt zlib response. The
regression was created by commit:
dbcced8e

Discovered-by: Harry Sintonen
Closes #2798

Regression introduced in 7.61.0

Reported-by: Thomas Klausner
Fixes #2783
Closes #2813