php@7.2: revision bump (icu4c 68.2)

- Fix compilation of php@7.2 with icu4c 68.
- Disable for one year after deprecation.

Closes #71274.

Co-authored-by: Carlo Cabrera <30379873+carlocab@users.noreply.github.com>
Signed-off-by: Carlo Cabrera <30379873+carlocab@users.noreply.github.com>

Formula/php@7.2.rb

@@ -6,7 +6,7 @@ class PhpAT72 < Formula
   mirror "https://fossies.org/linux/www/php-7.2.34.tar.xz"
   sha256 "409e11bc6a2c18707dfc44bc61c820ddfd81e17481470f3405ee7822d8379903"
   license "PHP-3.01"
-  revision 1
+  revision 2
 
   bottle do
     sha256 big_sur:  "e39495f5389c97e3e3e1c2b0ea47832cdff5e5db25e671da0f918d0fc74a7137"
@@ -16,7 +16,7 @@ class PhpAT72 < Formula
 
   keg_only :versioned_formula
 
-  deprecate! date: "2020-11-30", because: :versioned_formula
+  disable! date: "2021-11-30", because: :deprecated_upstream
 
   depends_on "httpd" => [:build, :test]
   depends_on "pkg-config" => :build
@@ -64,6 +64,10 @@ class PhpAT72 < Formula
     # See https://bugs.php.net/bug.php?id=80171
     ENV.append "CFLAGS", "-Wno-implicit-function-declaration"
 
+    # Workaround for https://bugs.php.net/80310
+    ENV.append "CFLAGS", "-DU_DEFINE_FALSE_AND_TRUE=1"
+    ENV.append "CXXFLAGS", "-DU_DEFINE_FALSE_AND_TRUE=1"
+
     # buildconf required due to system library linking bug patch
     system "./buildconf", "--force"