From 3fbbf7a4abf1a609a0e5d86ed79b348831313f98 Mon Sep 17 00:00:00 2001
From: lasconic <lasconic@gmail.com>
Date: Tue, 20 Dec 2016 21:57:13 +0100
Subject: [PATCH] Add option to use system FreeType (see PR #2915)

---
 CMakeLists.txt        | 33 +++++++++++++++++++++++++++++----
 mscore/CMakeLists.txt | 22 +++++++++++++++-------
 2 files changed, 44 insertions(+), 11 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e2e91f3fe2..067af5c0da 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -94,6 +94,7 @@ option(OCR           "Enable OCR, requires OMR" OFF)           # Requires tesser
 option(SOUNDFONT3    "Ogg Vorbis compressed fonts" ON)         # Enable Ogg Vorbis compressed fonts, requires Ogg & Vorbis
 option(HAS_AUDIOFILE "Enable audio export" ON)                 # Requires libsndfile
 option(USE_SYSTEM_QTSINGLEAPPLICATION "Use system QtSingleApplication" OFF)
+option(USE_SYSTEM_FREETYPE "Use system FreeType" OFF)          # requires freetype >= 2.5.2, does not work on win
 option(BUILD_LAME    "Enable MP3 export" ON)                   # Requires libmp3lame (non-free), call CMake with -DBUILD_LAME="OFF" to disable
 
 SET(JACK_LONGNAME "JACK (Jack Audio Connection Kit)")
@@ -198,6 +199,25 @@ else (MINGW OR APPLE)
       SET(Mscore_SHARE_NAME    "share/")
 endif (MINGW OR APPLE)
 
+##
+## freetype2 >= 2.5.2
+##
+
+if (USE_SYSTEM_FREETYPE)
+      if (APPLE)
+            PKGCONFIG (freetype2 2.5.2 FREETYPE_INCLUDE_DIRS FREETYPE_LIBDIR FREETYPE_LIBRARIES FREETYPE_CPP)
+            if (FREETYPE_INCLUDE_DIRS)
+                  STRING(REGEX REPLACE  "\"" "" FREETYPE_INCLUDE_DIRS ${FREETYPE_INCLUDE_DIRS})
+                  STRING(REGEX REPLACE  "\"" "" FREETYPE_LIBDIR ${FREETYPE_LIBDIR})
+                  message("freetype2 detected ${FREETYPE_INCLUDE_DIRS} ${FREETYPE_LIBDIR} ${FREETYPE_LIBRARIES}")
+            else (FREETYPE_INCLUDE_DIRS)
+                  message(FATAL_ERROR "freetype >= 2.5.2 is required\n")
+            endif (FREETYPE_INCLUDE_DIRS)
+      else (APPLE)
+            find_package(Freetype REQUIRED)
+      endif (APPLE)
+endif (USE_SYSTEM_FREETYPE)
+
 ##
 ## ALSA >= 1.0.0
 ##
@@ -571,8 +591,9 @@ if (OSC)
       subdirs (thirdparty/ofqf)
 endif (OSC)
 
-subdirs (thirdparty/freetype)
-
+if (NOT USE_SYSTEM_FREETYPE)
+      subdirs (thirdparty/freetype)
+endif (NOT USE_SYSTEM_FREETYPE)
 
 ##
 ## Includes
@@ -587,10 +608,14 @@ include_directories(
    ${VORBIS_INCDIR}
    ${SNDFILE_INCDIR}
    ${LAME_INCLUDE_DIR}
-#   ${FREETYPE_INCLUDE_DIRS}
-   ${PROJECT_SOURCE_DIR}/thirdparty/freetype/include
 )
 
+if (USE_SYSTEM_FREETYPE)
+      include_directories(${FREETYPE_INCLUDE_DIRS})
+else (USE_SYSTEM_FREETYPE)
+      include_directories(${PROJECT_SOURCE_DIR}/thirdparty/freetype/include)
+endif (USE_SYSTEM_FREETYPE)
+
 if (OMR)
    include_directories(${PROJECT_SOURCE_DIR}/thirdparty/poppler)
    include_directories(${PROJECT_SOURCE_DIR}/thirdparty/poppler/poppler)
diff --git a/mscore/CMakeLists.txt b/mscore/CMakeLists.txt
index fc81adf5d4..db746524a1 100644
--- a/mscore/CMakeLists.txt
+++ b/mscore/CMakeLists.txt
@@ -25,8 +25,6 @@ include_directories(
       ${CMAKE_CURRENT_BINARY_DIR}
       ${PROJECT_SOURCE_DIR}
       ${PROJECT_SOURCE_DIR}/thirdparty
-#      ${PROJECT_SOURCE_DIR}/thirdparty/freetype/include
-      ${FREETYPE_INCLUDE_DIRS}
       ${QTSINGLEAPPLICATION_INCLUDE_DIRS}
       )
 
@@ -321,6 +319,10 @@ target_link_libraries(mscore
       kqoauth
       )
 
+if (USE_SYSTEM_FREETYPE)
+      target_link_libraries(mscore ${FREETYPE_LIBRARIES})
+endif (USE_SYSTEM_FREETYPE)
+
 if (MINGW)
       set(MSCORE_OUTPUT_NAME ${MUSESCORE_NAME})
 elseif (MSCORE_INSTALL_SUFFIX)
@@ -340,13 +342,13 @@ endif (MSCORE_OUTPUT_NAME)
 
 if (ZERBERUS)
       target_link_libraries(mscore zerberus synthesizer)
-endif ()
+endif (ZERBERUS)
 if (AEOLUS)
       target_link_libraries(mscore aeolus)
-endif ()
+endif (AEOLUS)
 if (SOUNDFONT3)
       target_link_libraries(mscore ${VORBIS_LIB} ${OGG_LIB})
-endif ()
+endif (SOUNDFONT3)
 
 if (HAS_AUDIOFILE)
       target_link_libraries(mscore audiofile ${SNDFILE_LIB})
@@ -360,7 +362,7 @@ if (APPLE)
       #set_target_properties (mscore
       #    PROPERTIES
       #       XCODE_ATTRIBUTE_DEBUG_INFORMATION_FORMAT "dwarf-with-dsym")
-endif(APPLE)
+endif (APPLE)
 
 if (OSC)
       target_link_libraries(mscore ofqf)
@@ -483,11 +485,17 @@ else (MINGW)
    target_link_libraries(mscore
       ${ALSA_LIB}
       ${QT_LIBRARIES}
-      mscore_freetype
       z
       dl
       pthread
       )
+
+    if (USE_SYSTEM_FREETYPE)
+         target_link_libraries(mscore freetype)
+    else (USE_SYSTEM_FREETYPE)
+         target_link_libraries(mscore mscore_freetype)
+    endif (USE_SYSTEM_FREETYPE)
+
     if (USE_PORTAUDIO)
       target_link_libraries(mscore ${PORTAUDIO_LIB})
     endif (USE_PORTAUDIO)