From: Ryan Pavlik <ryan.pavlik@collabora.com>
Date: Thu, 27 Feb 2020 12:25:42 -0600
Subject: Find base dir and plugins where we've installed them.

---
 src/common/CMakeLists.txt    |  4 ++++
 src/common/pluginmanager.cpp | 14 ++++++++++++++
 src/templates/common.cmake   |  3 +++
 3 files changed, 21 insertions(+)

diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt
index 598cc42..3f5cc9a 100644
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -55,6 +55,10 @@ if(WIN32)
     set(TARGET_TYPE STATIC)
 endif()
 add_library(common ${TARGET_TYPE} ${SOURCES} ${HEADERS} ${RESOURCES})
+if(NOT WIN32 AND NOT APPLE)
+    target_compile_definitions(
+        common PRIVATE MESHLAB_LIB_INSTALL_DIR="${MESHLAB_LIB_INSTALL_DIR}")
+endif()
 
 set_target_properties(common PROPERTIES OUTPUT_NAME meshlab-common)
 target_link_libraries(
diff --git a/src/common/pluginmanager.cpp b/src/common/pluginmanager.cpp
index 95a50c4..60a6e5b 100644
--- a/src/common/pluginmanager.cpp
+++ b/src/common/pluginmanager.cpp
@@ -203,6 +203,20 @@ QString PluginManager::getBaseDirPath()
 {
 	QDir baseDir(qApp->applicationDirPath());
 
+#if defined(Q_OS_LINUX)
+	if (baseDir.dirName() == "bin") {
+		baseDir.cdUp();
+#ifdef MESHLAB_LIB_INSTALL_DIR
+		baseDir.cd(MESHLAB_LIB_INSTALL_DIR);
+#else
+		baseDir.cd("lib");
+		if(baseDir.exists("meshlab")) {
+			baseDir.cd("meshlab");
+		}
+#endif // MESHLAB_LIB_INSTALL_DIR
+	}
+#endif
+
 #if defined(Q_OS_WIN)
 	// Windows:
 	// during development with visual studio binary could be in the debug/release subdir.
diff --git a/src/templates/common.cmake b/src/templates/common.cmake
index 7dfe455..61a6f8e 100644
--- a/src/templates/common.cmake
+++ b/src/templates/common.cmake
@@ -17,6 +17,9 @@ add_library(common ${TARGET_TYPE}
     ${HEADERS}
     ${RESOURCES}
 )
+if(NOT WIN32 AND NOT APPLE)
+    target_compile_definitions(common PRIVATE MESHLAB_LIB_INSTALL_DIR="${MESHLAB_LIB_INSTALL_DIR}")
+endif()
 {% endblock %}
 
 {% block linking %}