graphics/darktable: Use Slackware's openjpeg (libopenmj2)

Signed-off-by: Robby Workman <rworkman@slackbuilds.org>

graphics/darktable/README

@@ -14,7 +14,6 @@ or higher).
 The following are optional dependencies:
 
 GraphicsMagick - for importing a wide range of non-RAW image formats
-openjpeg1      - for exporting images in JPEG 2000 format
 libwebp        - for exporting images in WebP format
 flickcurl      - for exporting images to Flickr
 json-glib      - for exporting images to Facebook

graphics/darktable/darktable.SlackBuild

@@ -68,11 +68,15 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+# Fix openjpeg detection - also set OPENJPEG_INCLUDE_DIR
+patch -p1 < $CWD/fix-find-openjpeg.diff
+
 mkdir -p build
 cd build
   cmake \
     -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
     -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
+    -DOPENJPEG_INCLUDE_DIR="/usr/include/openmj2-2.1" \
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DLIB_SUFFIX=${LIBDIRSUFFIX} \
     -DMAN_INSTALL_DIR=/usr/man/man1 \

graphics/darktable/darktable.info

@@ -5,6 +5,6 @@ DOWNLOAD="https://github.com/darktable-org/darktable/releases/download/release-2
 MD5SUM="8d2dd10643bfa6f1d046171d54123643"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
-REQUIRES="lensfun pugixml"
+REQUIRES="json-glib lensfun pugixml"
 MAINTAINER="David Spencer"
 EMAIL="baildon.research@googlemail.com"

graphics/darktable/fix-find-openjpeg.diff

@@ -0,0 +1,21 @@
+diff -Nur darktable-2.0.0.orig/cmake/modules/FindOpenJPEG.cmake darktable-2.0.0/cmake/modules/FindOpenJPEG.cmake
+--- darktable-2.0.0.orig/cmake/modules/FindOpenJPEG.cmake	2015-12-22 07:56:37.000000000 -0600
++++ darktable-2.0.0/cmake/modules/FindOpenJPEG.cmake	2016-01-09 17:19:38.605300279 -0600
+@@ -29,7 +29,7 @@
+ 
+ include(LibFindMacros)
+ 
+-libfind_pkg_check_modules(PC_OPENJPEG libopenjpeg1)
++libfind_pkg_check_modules(PC_OPENJPEG libopenmj2)
+ 
+ SET(_openjpeg_SEARCH_DIRS
+   ${OPENJPEG_ROOT_DIR}
+@@ -52,7 +52,7 @@
+ 
+ FIND_LIBRARY(OPENJPEG_LIBRARY
+   NAMES
+-    openjpeg
++    openmj2
+   HINTS
+     ${PC_OPENJPEG_LIBDIR}
+     ${PC_OPENJPEG_LIBRARY_DIRS}