https://bugs.gentoo.org/297536

--- a/configure.ac
+++ b/configure.ac
@@ -28,6 +28,7 @@
 AC_PROG_CC
 AC_PROG_AWK
 AC_PROG_LN_S 
+AM_PROG_AR
 AC_PROG_RANLIB
 
 
--- a/Makefile.am
+++ b/Makefile.am
@@ -137,7 +137,7 @@
 	$(INSTALL) -d $(DESTDIR)/$(pkgdatadir)/web/Style
 	$(INSTALL) -d $(DESTDIR)/$(pkgdatadir)/web/Javascripts
 	$(INSTALL) -d $(DESTDIR)/$(pkgdatadir)/web/Images
-	$(INSTALL) -d $(DESTDIR)/$(pkgdatadir)/plugins
+	$(INSTALL) -d $(DESTDIR)/$(libdir)/eugene/plugins
 	$(INSTALL) -d $(DESTDIR)/$(pkgdatadir)/cfg
 	$(INSTALL) -d $(DESTDIR)/$(pkgdatadir)/models
 	$(INSTALL) -d $(DESTDIR)/$(pkgdatadir)/models/WAM
@@ -160,6 +160,6 @@
 	$(INSTALL) -m 644 $(srcdir)/web/Images/*jpg $(DESTDIR)/$(pkgdatadir)/web/Images
 	$(INSTALL) -m 644 $(srcdir)/cfg/*.obo $(DESTDIR)/$(pkgdatadir)/cfg
 	$(INSTALL) -m 644 $(srcdir)/cfg/*.par $(DESTDIR)/$(pkgdatadir)/cfg
-	$(INSTALL) src/SensorPlugins/*/*.so  $(DESTDIR)/$(pkgdatadir)/plugins
+	$(INSTALL) src/SensorPlugins/*/*.so  $(DESTDIR)/$(libdir)/eugene/plugins
 	$(INSTALL) $(srcdir)/Procedures/Eval/egn_* $(DESTDIR)/$(pkgdatadir)/Procedures/Eval
 	$(INSTALL) $(srcdir)/Procedures/Get/egn_* $(DESTDIR)/$(pkgdatadir)/Procedures/Get
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -20,7 +20,7 @@
 
 SUBDIRS = Parametrization GDIF . SensorPlugins
 
-AM_CXXFLAGS = $(eugene_cxxflags) -DDEFAULT_EUGENE_DIR=\"${pkgdatadir}\"
+AM_CXXFLAGS = $(eugene_cxxflags) -DDEFAULT_EUGENE_DIR=\"${pkgdatadir}\" -DLIB_DIR=\"${libdir}\"
 AM_CFLAGS = 
 
 bin_PROGRAMS = eugene
--- a/src/MSensor.cc
+++ b/src/MSensor.cc
@@ -97,7 +97,7 @@
   std::string use_name;
 
   if (!IsInitialized) {
-    PluginsDir = (std::string)PAR.getC("eugene_dir")+"/"+PLUGINS_DIR+"/";
+    PluginsDir = (std::string)LIB_DIR+"/eugene/"+PLUGINS_DIR+"/";
 
     // On récupère les couples nom de sensor/priorité du .par
     PAR.ResetIter();