Add thirdparty libraries as git submodules.

jbig2dec latest
freetype 2.4.10
jpeg 9
openjpeg 1.5.0
zlib 1.2.7

Update MSVC projects for thirdparty libraries as submodules.

Improve thirdparty library availability checks in Makethird by
checking for the existence of a README file instead of just the directory,
since a checkout without active git submodules has empty directories
for the third party libraries.

6 files changed, 15 insertions, 0 deletions

diff --git a/thirdparty/README b/thirdparty/README
new file mode 100644
index 00000000..efd375d2
--- /dev/null
+++ b/thirdparty/README
@@ -0,0 +1,15 @@
+This directory holds third party libraries as git submodules.
+
+If the directories are empty, the makefile based build will try
+to use system libraries instead.
+
+To set up the third party modules for building from git:
+
+	$ git submodule init
+	$ git submodule update
+
+Then after each pull (to make sure they're up to date):
+
+	$ git submodule update
+
+Do NOT edit files in the submodule checkouts unless you know what you're doing.
diff --git a/thirdparty/freetype b/thirdparty/freetype
new file mode 160000
+Subproject 320613eeb83d0cd704de3e6adfb13dce787861b
diff --git a/thirdparty/jbig2dec b/thirdparty/jbig2dec
new file mode 160000
+Subproject 7a82fc0abd135e08875ec4941ba43e832bc1b7f
diff --git a/thirdparty/jpeg b/thirdparty/jpeg
new file mode 160000
+Subproject 219d59dcfd0e6ce8a3d8c5510e29237f0b5078e
diff --git a/thirdparty/openjpeg b/thirdparty/openjpeg
new file mode 160000
+Subproject d456e768044bb956142342aa2a51374239e2b36
diff --git a/thirdparty/zlib b/thirdparty/zlib
new file mode 160000
+Subproject c16b1b18ddaaf090caf321af831bccac6381a38