FindLibXslt: also search libexslt and xsltproc

merging some changes FindLibXslt.cmake from KDE

Alex

Modules/FindLibXslt.cmake

@@ -5,6 +5,9 @@
 #  LIBXSLT_INCLUDE_DIR - the LibXslt include directory
 #  LIBXSLT_LIBRARIES - Link these to LibXslt
 #  LIBXSLT_DEFINITIONS - Compiler switches required for using LibXslt
+# Additionally, the following two variables are set (but not required for using xslt):
+#  LIBXSLT_EXSLT_LIBRARIES - Link to these if you need to link against the exslt library
+#  LIBXSLT_XSLTPROC_EXECUTABLE - Contains the full path to the xsltproc executable if found
 
 #=============================================================================
 # Copyright 2006-2009 Kitware, Inc.
@@ -23,7 +26,7 @@
 # use pkg-config to get the directories and then use these values
 # in the FIND_PATH() and FIND_LIBRARY() calls
 FIND_PACKAGE(PkgConfig)
-PKG_CHECK_MODULES(PC_LIBXSLT libxslt)
+PKG_CHECK_MODULES(PC_LIBXSLT QUIET libxslt)
 SET(LIBXSLT_DEFINITIONS ${PC_LIBXSLT_CFLAGS_OTHER})
 
 FIND_PATH(LIBXSLT_INCLUDE_DIR NAMES libxslt/xslt.h
@@ -38,10 +41,22 @@ FIND_LIBRARY(LIBXSLT_LIBRARIES NAMES xslt libxslt
    ${PC_LIBXSLT_LIBRARY_DIRS}
   )
 
-# handle the QUIETLY and REQUIRED arguments and set LIBXML2_FOUND to TRUE if 
+FIND_LIBRARY(LIBXSLT_EXSLT_LIBRARY NAMES exslt libexslt
+    HINTS
+    ${PC_LIBXSLT_LIBDIR}
+    ${PC_LIBXSLT_LIBRARY_DIRS}
+  )
+
+SET(LIBXSLT_EXSLT_LIBRARIES ${LIBXSLT_EXSLT_LIBRARY} )
+
+FIND_PROGRAM(LIBXSLT_XSLTPROC_EXECUTABLE xsltproc)
+
+# handle the QUIETLY and REQUIRED arguments and set LIBXML2_FOUND to TRUE if
 # all listed variables are TRUE
 INCLUDE(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
 FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXslt DEFAULT_MSG LIBXSLT_LIBRARIES LIBXSLT_INCLUDE_DIR)
 
-MARK_AS_ADVANCED(LIBXSLT_INCLUDE_DIR LIBXSLT_LIBRARIES)
-
+MARK_AS_ADVANCED(LIBXSLT_INCLUDE_DIR
+                 LIBXSLT_LIBRARIES
+                 LIBXSLT_EXSLT_LIBRARY
+                 LIBXSLT_XSLTPROC_EXECUTABLE)