diff --git a/cmake/FindGRASS.cmake b/cmake/FindGRASS.cmake
index 36479ac8ea2..09c095006db 100644
--- a/cmake/FindGRASS.cmake
+++ b/cmake/FindGRASS.cmake
@@ -4,6 +4,34 @@
 # Redistribution and use is allowed according to the terms of the BSD license.
 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
 
+# Macro that checks for extra include directories set during GRASS compilation.
+# This helps for platforms where GRASS is built against dependencies in
+# non-standard locations; like on Mac, where the system gettext is too old and
+# GRASS is built off of gettext in /usr/local/opt, or some other custom prefix.
+# Such includes may need found again when including some GRASS headers.
+
+MACRO (CHECK_GRASS_EXTRA_INCLUDE_DIRS GRASS_VERSION)
+  SET(GRASS_EXTRA_INCLUDE_DIRS${GRASS_VERSION} ""
+      CACHE STRING "Extra includes string used for GRASS${GRASS_VERSION}")
+
+  IF(UNIX AND EXISTS ${GRASS_INCLUDE_DIR${GRASS_VERSION}}/Make/Platform.make
+     AND "${GRASS${GRASS_VERSION}_EXTRA_INCLUDE_DIRS}" STREQUAL "")
+
+    FILE(READ ${GRASS_INCLUDE_DIR${GRASS_VERSION}}/Make/Platform.make _platformfile)
+    STRING(REGEX MATCH "INCLUDE_DIRS *= *[^\n]*" _config_includes "${_platformfile}")
+    SET(_extra_includes "")
+    IF(NOT "${_config_includes}" STREQUAL "")
+      STRING(REGEX REPLACE "INCLUDE_DIRS *= *([^\n]*)" "\\1" _extra_includes "${_config_includes}")
+    ENDIF()
+    IF(NOT "${_extra_includes}" STREQUAL "")
+      SET(GRASS_EXTRA_INCLUDE_DIRS${GRASS_VERSION} ${_extra_includes}
+          CACHE STRING "Extra includes string used for GRASS${GRASS_VERSION}" FORCE)
+    ENDIF()
+  ENDIF()
+
+  MARK_AS_ADVANCED (GRASS_EXTRA_INCLUDE_DIRS${GRASS_VERSION})
+ENDMACRO (CHECK_GRASS_EXTRA_INCLUDE_DIRS GRASS_VERSION)
+
 # macro that checks for grass installation in specified directory
 
 MACRO (CHECK_GRASS G_PREFIX)
@@ -108,10 +136,12 @@ MACRO (CHECK_GRASS G_PREFIX)
           SET(GRASS_FOUND${GRASS_FIND_VERSION} TRUE)
           SET(GRASS_FOUND TRUE) # GRASS_FOUND is true if at least one version was found
           SET(GRASS_PREFIX${GRASS_CACHE_VERSION} ${G_PREFIX})
+          CHECK_GRASS_EXTRA_INCLUDE_DIRS(${GRASS_CACHE_VERSION})
           IF(GRASS_FIND_VERSION EQUAL 6)
             # Set also normal variable with number
             SET(GRASS_INCLUDE_DIR${GRASS_FIND_VERSION} ${GRASS_INCLUDE_DIR${GRASS_CACHE_VERSION}})
             SET(GRASS_PREFIX${GRASS_FIND_VERSION} ${G_PREFIX})
+            CHECK_GRASS_EXTRA_INCLUDE_DIRS(${GRASS_FIND_VERSION})
           ENDIF(GRASS_FIND_VERSION EQUAL 6)
         ENDIF(GRASS_LIBRARIES_FOUND${GRASS_FIND_VERSION})
     ENDIF(GRASS_MAJOR_VERSION${GRASS_FIND_VERSION} EQUAL GRASS_FIND_VERSION)
diff --git a/cmake/FindQCA.cmake b/cmake/FindQCA.cmake
index e715188726e..4f6839b842b 100644
--- a/cmake/FindQCA.cmake
+++ b/cmake/FindQCA.cmake
@@ -31,16 +31,15 @@ else(QCA_INCLUDE_DIR AND QCA_LIBRARY)
       /usr/local/lib
   )
 
-  if(APPLE)
-    if(QCA_LIBRARY AND QCA_LIBRARY MATCHES "qca(2)?-qt5\\.framework")
-      set(QCA_LIBRARY "${QCA_LIBRARY}" CACHE FILEPATH "QCA framework" FORCE)
-      set(QCA_INCLUDE_DIR "${QCA_LIBRARY}/Headers" CACHE FILEPATH "QCA framework headers" FORCE)
-    endif()
-  endif(APPLE)
+  set(_qca_fw)
+  if(QCA_LIBRARY MATCHES "/qca.*\\.framework")
+    string(REGEX REPLACE "^(.*/qca.*\\.framework).*$" "\\1" _qca_fw "${QCA_LIBRARY}")
+  endif()
 
   find_path(QCA_INCLUDE_DIR
     NAMES QtCrypto
     PATHS
+      "${_qca_fw}/Headers"
       ${LIB_DIR}/include
       "$ENV{LIB_DIR}/include"
       $ENV{INCLUDE}
diff --git a/cmake/FindQScintilla.cmake b/cmake/FindQScintilla.cmake
index bde0f6676bd..8826e1f2a81 100644
--- a/cmake/FindQScintilla.cmake
+++ b/cmake/FindQScintilla.cmake
@@ -24,16 +24,14 @@ IF(EXISTS QSCINTILLA_VERSION_STR)
   SET(QSCINTILLA_FOUND TRUE)
 ELSE(EXISTS QSCINTILLA_VERSION_STR)
 
-  FIND_PATH(QSCINTILLA_INCLUDE_DIR
-    NAMES Qsci/qsciglobal.h
-    PATHS
-      ${Qt5Core_INCLUDE_DIRS}
-      "${QT_INCLUDE_DIR}"
-      /usr/local/include
-      /usr/include
-    )
-
-  set(QSCINTILLA_LIBRARY_NAMES qscintilla2-qt5 libqt5scintilla2 libqscintilla2-qt5 qt5scintilla2 libqscintilla2-qt5.dylib)
+  set(QSCINTILLA_LIBRARY_NAMES
+    qscintilla2-qt5
+    libqt5scintilla2
+    libqscintilla2-qt5
+    qt5scintilla2
+    libqscintilla2-qt5.dylib
+    qscintilla2
+  )
 
   find_library(QSCINTILLA_LIBRARY
     NAMES ${QSCINTILLA_LIBRARY_NAMES}
@@ -43,6 +41,21 @@ ELSE(EXISTS QSCINTILLA_VERSION_STR)
       /usr/lib
   )
 
+  set(_qsci_fw)
+  if(QSCINTILLA_LIBRARY MATCHES "/qscintilla.*\\.framework")
+    string(REGEX REPLACE "^(.*/qscintilla.*\\.framework).*$" "\\1" _qsci_fw "${QSCINTILLA_LIBRARY}")
+  endif()
+
+  FIND_PATH(QSCINTILLA_INCLUDE_DIR
+    NAMES Qsci/qsciglobal.h
+    PATHS
+      "${_qsci_fw}/Headers"
+      ${Qt5Core_INCLUDE_DIRS}
+      "${QT_INCLUDE_DIR}"
+      /usr/local/include
+      /usr/include
+    )
+
   IF(QSCINTILLA_LIBRARY AND QSCINTILLA_INCLUDE_DIR)
     SET(QSCINTILLA_FOUND TRUE)
 
diff --git a/cmake/FindQsci.cmake b/cmake/FindQsci.cmake
index fcb2bc11ce0..0e7544bde9d 100644
--- a/cmake/FindQsci.cmake
+++ b/cmake/FindQsci.cmake
@@ -35,7 +35,7 @@ ELSE(EXISTS QSCI_MOD_VERSION_STR)
   IF(QSCI_FOUND)
     FIND_PATH(QSCI_SIP_DIR
       NAMES Qsci/qscimod5.sip
-      PATHS ${PYQT5_SIP_DIR}
+      PATHS ${PYQT5_SIP_DIR} ${SIP_DEFAULT_SIP_DIR}
     )
 
     IF(NOT QSCI_FIND_QUIETLY)
diff --git a/cmake/FindQwt.cmake b/cmake/FindQwt.cmake
index 13f3b5b09c7..4f04637de44 100644
--- a/cmake/FindQwt.cmake
+++ b/cmake/FindQwt.cmake
@@ -12,15 +12,7 @@
 #
 
 
-FIND_PATH(QWT_INCLUDE_DIR NAMES qwt.h PATHS
-  /usr/include
-  /usr/local/include
-  "$ENV{LIB_DIR}/include"
-  "$ENV{INCLUDE}"
-  PATH_SUFFIXES qwt-qt4 qwt qwt5 qwt6
-  )
-
-set(QWT_LIBRARY_NAMES qwt-qt5 qwt6-qt5)
+set(QWT_LIBRARY_NAMES qwt-qt5 qwt6-qt5 qwt)
 
 find_library(QWT_LIBRARY
   NAMES ${QWT_LIBRARY_NAMES}
@@ -31,6 +23,20 @@ find_library(QWT_LIBRARY
     "$ENV{LIB}"
 )
 
+set(_qwt_fw)
+if(QWT_LIBRARY MATCHES "/qwt.*\\.framework")
+  string(REGEX REPLACE "^(.*/qwt.*\\.framework).*$" "\\1" _qwt_fw "${QWT_LIBRARY}")
+endif()
+
+FIND_PATH(QWT_INCLUDE_DIR NAMES qwt.h PATHS
+  "${_qwt_fw}/Headers"
+  /usr/include
+  /usr/local/include
+  "$ENV{LIB_DIR}/include"
+  "$ENV{INCLUDE}"
+  PATH_SUFFIXES qwt-qt4 qwt qwt5 qwt6
+)
+
 IF (QWT_INCLUDE_DIR AND QWT_LIBRARY)
   SET(QWT_FOUND TRUE)
 ENDIF (QWT_INCLUDE_DIR AND QWT_LIBRARY)
diff --git a/cmake/FindQwtPolar.cmake b/cmake/FindQwtPolar.cmake
index 8956693c140..e09d14ca67f 100644
--- a/cmake/FindQwtPolar.cmake
+++ b/cmake/FindQwtPolar.cmake
@@ -12,15 +12,6 @@
 # QWTPOLAR_INCLUDE_DIR = where to find headers 
 #
 
-
-FIND_PATH(QWTPOLAR_INCLUDE_DIR NAMES qwt_polar.h PATHS
-  /usr/include
-  /usr/local/include
-  "$ENV{LIB_DIR}/include" 
-  "$ENV{INCLUDE}" 
-  PATH_SUFFIXES qwtpolar qwt
-  )
-
 FIND_LIBRARY(QWTPOLAR_LIBRARY NAMES qwtpolar PATHS 
   /usr/lib
   /usr/local/lib
@@ -28,6 +19,20 @@ FIND_LIBRARY(QWTPOLAR_LIBRARY NAMES qwtpolar PATHS
   "$ENV{LIB}/lib" 
   )
 
+SET(_qwtpolar_fw)
+IF (QWTPOLAR_LIBRARY MATCHES "/qwtpolar.*\\.framework")
+  STRING(REGEX REPLACE "^(.*/qwtpolar.*\\.framework).*$" "\\1" _qwtpolar_fw "${QWTPOLAR_LIBRARY}")
+ENDIF ()
+
+FIND_PATH(QWTPOLAR_INCLUDE_DIR NAMES qwt_polar.h PATHS
+  "${_qwtpolar_fw}/Headers"
+  /usr/include
+  /usr/local/include
+  "$ENV{LIB_DIR}/include"
+  "$ENV{INCLUDE}"
+  PATH_SUFFIXES qwtpolar qwt
+  )
+
 IF (QWTPOLAR_INCLUDE_DIR AND QWTPOLAR_LIBRARY)
   SET(QWTPOLAR_FOUND TRUE)
 ENDIF (QWTPOLAR_INCLUDE_DIR AND QWTPOLAR_LIBRARY)
diff --git a/python/plugins/processing/algs/help/__init__.py b/python/plugins/processing/algs/help/__init__.py
index ec4843cd93a..5591eef6dd1 100644
--- a/python/plugins/processing/algs/help/__init__.py
+++ b/python/plugins/processing/algs/help/__init__.py
@@ -24,6 +24,7 @@ __copyright__ = '(C) 2016, Victor Olaya'
 __revision__ = '$Format:%H$'
 
 import os
+import codecs
 import yaml
 from qgis.core import Qgis, QgsWkbTypes
 from qgis.PyQt.QtCore import QSettings, QLocale
@@ -35,7 +36,7 @@ def loadShortHelp():
     for f in os.listdir(path):
         if f.endswith("yaml"):
             filename = os.path.join(path, f)
-            with open(filename) as stream:
+            with codecs.open(filename, encoding='utf-8') as stream:
                 h.update(yaml.load(stream))
     version = ".".join(Qgis.QGIS_VERSION.split(".")[0:2])
     overrideLocale = QSettings().value('locale/overrideFlag', False, bool)
diff --git a/src/plugins/grass/CMakeLists.txt b/src/plugins/grass/CMakeLists.txt
index 3ee4f87d834..b33ff80e98f 100644
--- a/src/plugins/grass/CMakeLists.txt
+++ b/src/plugins/grass/CMakeLists.txt
@@ -190,7 +190,7 @@ MACRO(ADD_GRASSPLUGIN GRASS_BUILD_VERSION)
     )
 
     SET_TARGET_PROPERTIES(grassplugin${GRASS_BUILD_VERSION} PROPERTIES
-      COMPILE_FLAGS "-DGRASS_BASE=\\\"${GRASS_PREFIX}\\\""
+      COMPILE_FLAGS "-DGRASS_BASE=\\\"${GRASS_PREFIX}\\\" ${GRASS_EXTRA_INCLUDE_DIRS${GRASS_BUILD_VERSION}}"
     )
 
     IF(MSVC)
@@ -216,7 +216,7 @@ MACRO(ADD_GRASSPLUGIN GRASS_BUILD_VERSION)
     ADD_EXECUTABLE(qgis.g.browser${GRASS_BUILD_VERSION} ${GRASS_BROWSER_SRCS})
 
     SET_TARGET_PROPERTIES(qgis.g.browser${GRASS_BUILD_VERSION} PROPERTIES
-      COMPILE_FLAGS "-DGRASS_BASE=\\\"${GRASS_PREFIX}\\\""
+      COMPILE_FLAGS "-DGRASS_BASE=\\\"${GRASS_PREFIX}\\\" ${GRASS_EXTRA_INCLUDE_DIRS${GRASS_BUILD_VERSION}}"
     )
 
     TARGET_LINK_LIBRARIES (qgis.g.browser${GRASS_BUILD_VERSION}