[gegl] operation/json: Actually install file used in test

[Jon Nordby <jonnor src gnome org>]

commit 9abdb03272b9ce9b40c4f29376eca565870a238a
Author: Jon Nordby <jononor gmail com>
Date:   Tue Jan 20 21:06:01 2015 +0100

    operation/json: Actually install file used in test
    
    Seems to be require for distcheck to pass

 configure.ac                |    1 +
 operations/Makefile.am      |    2 +-
 operations/json/.gitignore  |    3 +++
 operations/json/Makefile.am |   11 +++++++++++
 4 files changed, 16 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7a2334f..fce1b8a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1204,6 +1204,7 @@ libs/poly2tri-c/poly2tri-c/refine/Makefile
 seamless-clone/Makefile
 operations/Makefile
 operations/core/Makefile
+operations/json/Makefile
 operations/common/Makefile
 operations/common/perlin/Makefile
 operations/seamless-clone/Makefile
diff --git a/operations/Makefile.am b/operations/Makefile.am
index 321efc4..5d9bad0 100644
--- a/operations/Makefile.am
+++ b/operations/Makefile.am
@@ -4,6 +4,7 @@ SUBDIRS = \
        generated       \
        seamless-clone \
        transform \
+    json \
        external
 
 if ENABLE_WORKSHOP
@@ -12,4 +13,3 @@ endif
 
 EXTRA_DIST = \
        Makefile-common.am
-       json/grey2.json
diff --git a/operations/json/.gitignore b/operations/json/.gitignore
new file mode 100644
index 0000000..0a864cc
--- /dev/null
+++ b/operations/json/.gitignore
@@ -0,0 +1,3 @@
+/Makefile
+/Makefile.in
+
diff --git a/operations/json/Makefile.am b/operations/json/Makefile.am
new file mode 100644
index 0000000..9ec60ed
--- /dev/null
+++ b/operations/json/Makefile.am
@@ -0,0 +1,11 @@
+include $(top_srcdir)/operations/Makefile-common.am
+
+OPS = grey2.json
+
+opdir = $(libdir)/gegl- GEGL_API_VERSION@
+op_DATA = $(OPS)
+
+.PHONY: all
+
+all: $(OPS)
+       echo 'Nothing to do'