BUG: fix #5329, if /usr/xpg4/bin/tail exists, use this one -> on SunOS

/usr/bin/tail doesn't understand the -n +<number> syntax
-remove standard searchd dirs from FindPHP4.cmake

Alex

Modules/CPack.STGZ_Header.sh.in

@@ -123,7 +123,15 @@ echo ""
 # take the archive portion of this file and pipe it to tar
 # the NUMERIC parameter in this command should be one more
 # than the number of lines in this header file
-tail -n +###CPACK_HEADER_LENGTH### "$0" | gunzip | (cd "${toplevel}" && tar xf -) || cpack_echo_exit "Problem unpacking the @CPACK_PACKAGE_FILE_NAME@"
+# on SunOS there are two tails, the one in /usr/bin doesn't understand
+# the -n +<number> syntax, the one in /usr/xpg4/bin/ does
+tail_executable=tail
+if [ -x /usr/xpg4/bin/tail ]
+then
+  tail_executable=/usr/xpg4/bin/tail
+fi
+
+"$tail_executable" -n +###CPACK_HEADER_LENGTH### "$0" | gunzip | (cd "${toplevel}" && tar xf -) || cpack_echo_exit "Problem unpacking the @CPACK_PACKAGE_FILE_NAME@"
 
 echo "Unpacking finished successfully"
 

Modules/FindPHP4.cmake

@@ -30,12 +30,7 @@ IF(PHP4_FOUND_INCLUDE_PATH)
   SET(PHP4_INCLUDE_PATH "${php4_paths}" INTERNAL "PHP4 include paths")
 ENDIF(PHP4_FOUND_INCLUDE_PATH)
 
-FIND_PROGRAM(PHP4_EXECUTABLE
-  NAMES php4 php
-  PATHS
-  /usr/bin
-  /usr/local/bin
-  )
+FIND_PROGRAM(PHP4_EXECUTABLE NAMES php4 php )
 
 MARK_AS_ADVANCED(
   PHP4_EXECUTABLE