Add php_debug and php_zts variables

Author: petk

build/php.m4

@@ -2544,4 +2544,6 @@ AC_DEFUN([PHP_SET_LIBS_PRIVATE],
 AS_VAR_SET_IF([ZEND_EXTRA_LIBS],
   [AS_VAR_APPEND([PHP_LIBS_PRIVATE], [" $ZEND_EXTRA_LIBS"])])
 AC_SUBST([PHP_LIBS_PRIVATE])
+AC_SUBST([ZEND_DEBUG])
+AC_SUBST([ZEND_ZTS])
 ])

sapi/embed/php-embed.pc.in

@@ -21,6 +21,10 @@ php_vernum=@PHP_VERSION_ID@
 php_inidir=@PHP_CONFIG_FILE_SCAN_DIR@
 # The path in which to look for php.ini.
 php_inipath=@PHP_CONFIG_FILE_PATH@
+# Whether PHP is built in debug mode (yes) or not (no).
+php_debug=@ZEND_DEBUG@
+# Whether PHP is built with thread safety (yes) or not (no).
+php_zts=@ZEND_ZTS@
 
 Name: PHP Embed SAPI
 Description: A lightweight SAPI to embed PHP into application using C bindings

scripts/php.pc.in

@@ -21,6 +21,10 @@ php_vernum=@PHP_VERSION_ID@
 php_inidir=@PHP_CONFIG_FILE_SCAN_DIR@
 # The path in which to look for php.ini.
 php_inipath=@PHP_CONFIG_FILE_PATH@
+# Whether PHP is built in debug mode (yes) or not (no).
+php_debug=@ZEND_DEBUG@
+# Whether PHP is built with thread safety (yes) or not (no).
+php_zts=@ZEND_ZTS@
 
 Name: PHP
 Description: Build extension for a PHP general-purpose scripting language