AVRO-1769. C: Use operating system's libjansson instead of bundling it with Avro. Contributed by Magnus Edenhill.

git-svn-id: https://svn.apache.org/repos/asf/avro/trunk@1725610 13f79535-47bb-0310-9956-ffa450edef68

Author: ept

CHANGES.txt

@@ -267,6 +267,9 @@ Avro 1.8.0 (15 December 2015)
 
     AVRO-1782. Ruby: Fix unit test failures in new versions of Ruby. (martinkl)
 
+    AVRO-1769. C: Use operating system's libjansson instead of bundling
+    it with Avro. (Magnus Edenhill via martinkl)
+
 Avro 1.7.7 (23 July 2014)
 
   NEW FEATURES

LICENSE.txt

@@ -232,158 +232,6 @@ Some files include an additional copyright notice:
 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 | THE SOFTWARE.
 
-----------------------------------------------------------------------
-License for the libtool scripts used in the Jansson C JSON parser: 
-
-libtool (GNU libtool) 2.2.10
-Written by Gordon Matzigkeit <[email protected]>, 1996
-
-Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006,
-2007, 2008, 2009, 2010 Free Software Foundation, Inc.
-
-Included under the terms of the Apache License version 2.0.
-
-| GNU Libtool is free software; you can redistribute it and/or modify
-| it under the terms of the GNU General Public License as published by
-| the Free Software Foundation; either version 2 of the License, or
-| (at your option) any later version.
-|
-| As a special exception to the GNU General Public License,
-| if you distribute this file as part of a program or library that
-| is built using GNU Libtool, you may include this file under the
-| same distribution terms that you use for the rest of that program.
-|
-| GNU Libtool is distributed in the hope that it will be useful, but
-| WITHOUT ANY WARRANTY; without even the implied warranty of
-| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-| General Public License for more details.
-|
-| You should have received a copy of the GNU General Public License
-| along with GNU Libtool; see the file COPYING.  If not, a copy
-| can be downloaded from http://www.gnu.org/licenses/gpl.html,
-| or obtained by writing to the Free Software Foundation, Inc.,
-| 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-
-----------------------------------------------------------------------
-License for the configure script used in the Jansson C JSON parser: 
-
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
-Foundation, Inc.
-
-| This configure script is free software; the Free Software Foundation
-| gives unlimited permission to copy, distribute and modify it.
-
-Portions of the configure script are from libtool (see above) and are
-included under the terms of the Apache License version 2.0.
-
-----------------------------------------------------------------------
-License for the install-sh script used in the Jansson C JSON parser: 
-
-Copyright (C) 1994 X Consortium
-
-| This originates from X11R5 (mit/util/scripts/install.sh), which was
-| later released in X11R6 (xc/config/util/install.sh) with the
-| following copyright and license.
-|
-| Permission is hereby granted, free of charge, to any person obtaining a copy
-| of this software and associated documentation files (the "Software"), to
-| deal in the Software without restriction, including without limitation the
-| rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-| sell copies of the Software, and to permit persons to whom the Software is
-| furnished to do so, subject to the following conditions:
-|
-| The above copyright notice and this permission notice shall be included in
-| all copies or substantial portions of the Software.
-|
-| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-| X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-| AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
-| TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-|
-| Except as contained in this notice, the name of the X Consortium shall not
-| be used in advertising or otherwise to promote the sale, use or other deal-
-| ings in this Software without prior written authorization from the X Consor-
-| tium.
-|
-| FSF changes to this file are in the public domain.
-
-----------------------------------------------------------------------
-License for the aclocal.m4 script used in the Jansson C JSON parser: 
-
-Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
-
-| This file is free software; the Free Software Foundation
-| gives unlimited permission to copy and/or distribute it,
-| with or without modifications, as long as this notice is preserved.
-|
-| This program is distributed in the hope that it will be useful,
-| but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-| even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-| PARTICULAR PURPOSE.
-
-Portions of the aclocal.m4 file are from libtool (see above) and are
-included under the terms of the Apache License version 2.0.
-
-----------------------------------------------------------------------
-License for build scripts used in the Jansson C JSON parser: 
-
-* config.guess
-  Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-  2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
-* missing
-  Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006
-  Free Software Foundation, Inc.
-  Originally by Fran,cois Pinard <[email protected]>, 1996.
-* config.sub
-  Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-  2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
-  Inc.
-* depcomp
-  Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006 Free Software
-  Foundation, Inc.
-  Originally written by Alexandre Oliva <[email protected]>.
-
-Included under the terms of the Apache License version 2.0.
-
-| This file is free software; you can redistribute it and/or modify it
-| under the terms of the GNU General Public License as published by
-| the Free Software Foundation; either version 2 of the License, or
-| (at your option) any later version.
-|
-| This program is distributed in the hope that it will be useful, but
-| WITHOUT ANY WARRANTY; without even the implied warranty of
-| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-| General Public License for more details.
-|
-| You should have received a copy of the GNU General Public License
-| along with this program; if not, write to the Free Software
-| Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-| 02110-1301, USA.
-|
-| As a special exception to the GNU General Public License, if you
-| distribute this file as part of a program that contains a
-| configuration script generated by Autoconf, you may include it under
-| the same distribution terms that you use for the rest of that program.
-
-----------------------------------------------------------------------
-License for Makefile.in files used in the Jansson C JSON parser: 
-
-Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-2003, 2004, 2005, 2006  Free Software Foundation, Inc.
-
-| This Makefile.in is free software; the Free Software Foundation
-| gives unlimited permission to copy and/or distribute it,
-| with or without modifications, as long as this notice is preserved.
-|
-| This program is distributed in the hope that it will be useful,
-| but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-| even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-| PARTICULAR PURPOSE.
-
 ----------------------------------------------------------------------
 License for msinttypes.h and msstdint.h used in the C implementation:
 Source from:

lang/c/CMakeLists.txt

@@ -123,7 +123,6 @@ if(UNIX AND THREADSAFE AND CMAKE_COMPILER_IS_GNUCC)
 endif(UNIX AND THREADSAFE AND CMAKE_COMPILER_IS_GNUCC)
 
 include_directories(${AvroC_SOURCE_DIR}/src)
-include_directories(${AvroC_SOURCE_DIR}/jansson/src)
 
 
 # Enable codecs
@@ -169,6 +168,16 @@ endif (LZMA_FOUND)
 set(CODEC_LIBRARIES ${ZLIB_LIBRARIES} ${LZMA_LIBRARIES} ${SNAPPY_LIBRARIES})
 set(CODEC_PKG "@ZLIB_PKG@ @LZMA_PKG@ @SNAPPY_PKG@")
 
+# Jansson JSON library
+pkg_check_modules(JANSSON jansson>=2.3)
+if (JANSSON_FOUND)
+    set(JANSSON_PKG libjansson)
+    include_directories(${JANSSON_INCLUDE_DIR})
+    link_directories(${JANSSON_LIBRARY_DIRS})
+else (JANSSON_FOUND)
+    message(FATAL_ERROR "libjansson >=2.3 not found")
+endif (JANSSON_FOUND)
+
 
 add_subdirectory(src)
 add_subdirectory(examples)

lang/c/INSTALL

@@ -13,14 +13,20 @@ Prerequisites
 Avro uses CMake [1] as its build manager.  You must have this installed,
 along with a C compiler (such as gcc) to build the library.
 
-Avro doesn't depend on any other libraries, but you need asciidoc [2]
-and source-highlight [3] installed to build Avro's documentation.  The
-build scripts will automatically detect whether these tools are
-installed, and will skip the documentation if they're not.
+Avro depends on the Jansson JSON parser [2], version 2.3 or higher.  On
+many operating systems this library is available through your package
+manager (for example, `apt-get install libjansson-dev` on Ubuntu/Debian,
+and `brew install jansson` on Mac OS).  If not, please download and
+install it from source [2].
+
+To build the documentation you need asciidoc [3] and source-highlight [4]
+installed.  The build scripts will automatically detect whether these
+tools are installed, and will skip the documentation if they're not.
 
 [1] http://www.cmake.org/
-[2] http://www.methods.co.nz/asciidoc
-[3] http://www.gnu.org/software/src-highlite/
+[2] http://www.digip.org/jansson/
+[3] http://www.methods.co.nz/asciidoc
+[4] http://www.gnu.org/software/src-highlite/
 
 
 Building from source