[Libnifalcon-devel] build fixes

[Stephen S. <rad...@gm...>]

Hi,

I got the latest version of libnifalcon to build for me, just thought
I'd report on problems I encountered (Ubuntu 8.10)

First issue was that programs wouldn't link correctly, complaining
about undefined references to pthread_ and clock_ functions.  The
following included patch to cmake_modules fixed it for me.  I suppose
that pthread and librt should really be detected properly by CMake but
I don't know it well enough to know how to do this.

Second, I'm partial to using my home directory for locally installing
programs instead of using /usr/local.  I had to set a couple of
things, finally came up with this command line that got it to work:

cmake .. -DCMAKE_INSTALL_PREFIX=$HOME/.local -DPREFIX_DIR=$HOME/.local
-DPROJECT_INCLUDE_DIR=$PWD/../include

I'm not sure why PREFIX_DIR needs to be there along with
CMAKE_INSTALL_PREFIX, but otherwise "make install" did not work.
Setting this prefix also helped it find the libusb-1.0 install I had
in my local folder, which otherwise I was having to type in manually.

Even with these, "make install" still did not work, choking on
installation of the include files, until I set PROJECT_INCLUDE_DIR to
point explicitly to the right place.  (It seemed it was set to "",
since it was trying to find the files "/falcon/gmtl", etc.)

Anyways, with that, I got it working.  Happy to say I have written a
small CHAI 3D interface to libnifalcon, and happily have DIMPLE using
it on Linux.  Testing on OS X later today.


cheers,

Steve



commit 72e9f7530efd205e5f10a03d2fec8f89642eddc7
Author: Stephen Sinclair <rad...@gm...>
Date:   Mon Mar 16 22:38:19 2009 -0400

    libusb-1.0 requires pthread and librt on Linux.

diff --git a/find/Findlibusb-1.0.cmake b/find/Findlibusb-1.0.cmake
index 82a7c57..bbfdbf9 100644
--- a/find/Findlibusb-1.0.cmake
+++ b/find/Findlibusb-1.0.cmake
@@ -48,7 +48,9 @@ else (LIBUSB_1_LIBRARIES AND LIBUSB_1_INCLUDE_DIRS)
   )
   set(LIBUSB_1_LIBRARIES
     ${LIBUSB_1_LIBRARY}
-)
+    pthread
+    rt
+  )

   if (LIBUSB_1_INCLUDE_DIRS AND LIBUSB_1_LIBRARIES)
      set(LIBUSB_1_FOUND TRUE)