diff --git a/lemon/lemon.pc.in b/lemon/lemon.pc.in
--- a/lemon/lemon.pc.in
+++ b/lemon/lemon.pc.in
@@ -6,5 +6,5 @@
 Name: @PACKAGE_NAME@
 Description: Library of Efficient Models and Optimization in Networks
 Version: @PACKAGE_VERSION@
-Libs: -L${libdir} -lemon
+Libs: -L${libdir} -lemon @GLPK_LIBS@ @CPLEX_LIBS@ @SOPLEX_LIBS@ @CLP_LIBS@ @CBC_LIBS@
 Cflags: -I${includedir}