Merge r222727 - [WPE] Do not require XSLT if disabled

https://bugs.webkit.org/show_bug.cgi?id=177752

Patch by Olivier Blin <olivier.blin@softathome.com> on 2017-10-02
Reviewed by Michael Catanzaro.

* Source/cmake/OptionsWPE.cmake: libxslt is not a hard dep

ChangeLog

@@ -1,3 +1,12 @@
+2017-10-02  Olivier Blin  <olivier.blin@softathome.com>
+
+        [WPE] Do not require XSLT if disabled
+        https://bugs.webkit.org/show_bug.cgi?id=177752
+
+        Reviewed by Michael Catanzaro.
+
+        * Source/cmake/OptionsWPE.cmake: libxslt is not a hard dep
+
 2017-09-26  Zan Dobersek  <zdobersek@igalia.com>
 
         [CMake] Use implicit include directories for Clang as well

Source/cmake/OptionsWPE.cmake

@@ -73,13 +73,16 @@ find_package(LibEpoxy 1.4.0 REQUIRED)
 find_package(LibGcrypt 1.6.0 REQUIRED)
 find_package(LibSoup 2.42.0 REQUIRED)
 find_package(LibXml2 2.8.0 REQUIRED)
-find_package(LibXslt 1.1.7 REQUIRED)
 find_package(PNG REQUIRED)
 find_package(Sqlite REQUIRED)
 find_package(WebP REQUIRED)
 
 find_package(WPEBackend REQUIRED)
 
+if (ENABLE_XSLT)
+    find_package(LibXslt 1.1.7 REQUIRED)
+endif ()
+
 set(USE_CAIRO ON)
 set(USE_XDGMIME ON)
 SET_AND_EXPOSE_TO_BUILD(USE_GCRYPT TRUE)