Index: libkolabxml/src/php/CMakeLists.txt
===================================================================
--- libkolabxml.orig/src/php/CMakeLists.txt	2016-04-29 13:24:54.786787527 +0200
+++ libkolabxml/src/php/CMakeLists.txt	2016-04-29 13:25:24.102918138 +0200
@@ -26,13 +26,23 @@
 # Try to find PHP5
 find_path(PHP_INCLUDE_DIR NAMES main/php.h PATH_SUFFIXES php php5)
 find_program(PHP_EXECUTABLE NAMES php)
+find_program(PHP_CONFIG_EXECUTABLE NAMES php-config)
 
 # Libkolabxml needs PHP >= 5.3
 set(PHP_MIN_VERSION 50300)
 
+if(NOT PHP_INCLUDE_DIR)
+  if(PHP_CONFIG_EXECUTABLE)
+    execute_process(COMMAND ${PHP_CONFIG_EXECUTABLE} --include-dir
+                    OUTPUT_VARIABLE _php_include_dir
+    )
+    string(REGEX REPLACE "\n" "" _php_include_dir "${_php_include_dir}")
+    set(PHP_INCLUDE_DIR ${_php_include_dir})
+  endif()
+endif()
+
 # Find where to install the extension files if it's not defined
 if(NOT DEFINED PHP_INSTALL_DIR)
-  find_program(PHP_CONFIG_EXECUTABLE NAMES php-config)
   if(PHP_CONFIG_EXECUTABLE)
     execute_process(COMMAND ${PHP_CONFIG_EXECUTABLE} --extension-dir
                     OUTPUT_VARIABLE _php_extensions_dir