Add 7.2 (pre-release)

[tianon]

This currently fails to build due to https://bugs.php.net/bug.php?id=74723, but I wanted to get a PR open so we have a place to track the attempt/information.

[tianon]

Oh boo, stretch also fails to compile, needing https://sources.debian.net/src/php7.1/7.1.6-1/debian/patches/0049-Fix-check-for-CURL-include-in-M-A-directory.patch/.

See also https://stackoverflow.com/a/42520953/433558.

From: =?utf-8?q?Ond=C5=99ej_Sur=C3=BD?= <[email protected]>
Date: Wed, 25 Jan 2017 11:17:25 +0100
Subject: Fix check for CURL include in M-A directory

---
 ext/curl/config.m4 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ext/curl/config.m4 b/ext/curl/config.m4
index 2f82c34..f785770 100644
--- a/ext/curl/config.m4
+++ b/ext/curl/config.m4
@@ -6,12 +6,12 @@ PHP_ARG_WITH(curl, for cURL support,
 [  --with-curl[=DIR]         Include cURL support])
 
 if test "$PHP_CURL" != "no"; then
-  if test -r $PHP_CURL/include/curl/easy.h; then
+  if test -r $PHP_CURL/include/$DEB_HOST_MULTIARCH/curl/easy.h || test -r $PHP_CURL/include/curl/easy.h; then
     CURL_DIR=$PHP_CURL
   else
     AC_MSG_CHECKING(for cURL in default path)
     for i in /usr/local /usr; do
-      if test -r $i/include/curl/easy.h; then
+      if test -r $i/include/$DEB_HOST_MULTIARCH/curl/easy.h || test -r $i/include/curl/easy.h; then
         CURL_DIR=$i
         AC_MSG_RESULT(found in $i)
         break

(See also https://gitlab.sury.org/pkg-php/php/commit/65c8b6e1e52e20c27fb0e027555ab65fef42c500 for what's more likely to be a permanently available URL.)

[tianon]

See also https://bugs.php.net/bug.php?id=74125.

[tianon]

I've now updated this to 7.2.0alpha2 (which is still affected by both bugs).

[tianon]

We'll probably have to apply a patch for the curl headers, and we might have to use --without-pear and install pear out-of-band (to get the updated Archive_Tar), but I hope not 😅.

[tianon]

Updated to 7.2alpha3 and added a workaround for https://bugs.php.net/bug.php?id=74125. 👍