commit b10d490efd6052a02a90277e3325adbec6ce62eb
author Carlos O'Ryan <coryan@users.noreply.github.com> Sun Jun 02 21:39:23 2019 -0400
committer Adam Cozzette <acozzette@google.com> Wed Jun 05 10:39:02 2019 -0700
tree fe0e0ffb3916021390e3adf83ed55dd34e6214ac
parent e08f01ce6a78a6cf2834dfa37281eb366eb0c5c3

Fix RPATH when CMAKE_INSTALL_LIBDIR != lib.

In some platforms ${CMAKE_INSTALL_LIBDIR} expands to `lib64`. The libraries
are correctly installed in that directory, but the RPATH is set to point to
`$ORIGIN/../lib`, where it should be `$ORIGIN/../lib64`.

cmake/install.cmake

diff --git a/cmake/install.cmake b/cmake/install.cmake
index 9b2ae93..be47c54 100644
--- a/cmake/install.cmake
+++ b/cmake/install.cmake
@@ -33,7 +33,7 @@
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT protoc)
   if (UNIX AND NOT APPLE)
     set_property(TARGET protoc
-      PROPERTY INSTALL_RPATH "$ORIGIN/../lib")
+      PROPERTY INSTALL_RPATH "$ORIGIN/../${CMAKE_INSTALL_LIBDIR}")
   elseif (APPLE)
     set_property(TARGET protoc
       PROPERTY INSTALL_RPATH "@loader_path/../lib")