BUG: Refs #177. Changed the way the PHP variable is set.

When I ran CMake on the file in the previous version, the PHP
interpreter was called and waited for input, which appeared
to hang CMake.  I've changed the way the PHP interpreter is called.

Author: Michael Grauer

CMakeLists.txt

@@ -13,15 +13,14 @@ set( Midas_VERSION_BUILD
 set( Midas_VERSION
   "${Midas_VERSION_MAJOR}.${Midas_VERSION_MINOR}.${Midas_VERSION_BUILD}" )
 
-set( PHP "php" CACHE STRING  "PHP executable.")
-
-EXECUTE_PROCESS( COMMAND ${PHP} RESULT_VARIABLE ret_var)
-if(NOT ${ret_var} EQUAL 0)
-  message(FATAL_ERROR "Please set the PHP executable")
+#-----------------------------------------------------------------------------
+#  Find the php executable
+find_program(PHP "php" CACHE STRING "PHP executable.")
+if(NOT PHP)
+ message(FATAL_ERROR "Please set the PHP executable")
 endif()
 
 
-
 #-----------------------------------------------------------------------------
 #  This should be at the top level for warning suppression
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/library/CMake/CTestCustom.cmake.in