Index: ada_language_server/gnat/tester.gpr
===================================================================
--- ada_language_server.orig/gnat/tester.gpr
+++ ada_language_server/gnat/tester.gpr
@@ -17,6 +17,7 @@
 
 with "lsp_client";
 with "gnatcoll";
+with "gtkada";
 
 project Tester is
 
Index: ada_language_server/Makefile
===================================================================
--- ada_language_server.orig/Makefile
+++ ada_language_server/Makefile
@@ -74,7 +74,7 @@ endif
 
 all: coverage-instrument
 	$(GPRBUILD) -P gnat/tester.gpr -p $(BUILD_FLAGS)
-	$(GPRBUILD) -d -ws -c -u -P gnat/lsp_server.gpr -p $(BUILD_FLAGS) s-memory.adb
+	$(GPRBUILD) -d -ws -c -u -P gnat/lsp_server.gpr -aP /usr/share/gpr -p $(BUILD_FLAGS) s-memory.adb
 	$(GPRBUILD) -P gnat/lsp_server.gpr -p $(COVERAGE_BUILD_FLAGS) \
 		-XVERSION=$(TRAVIS_TAG)
 	$(GPRBUILD) -P gnat/codec_test.gpr -p $(COVERAGE_BUILD_FLAGS)
Index: ada_language_server/gnat/lsp_server.gpr
===================================================================
--- ada_language_server.orig/gnat/lsp_server.gpr
+++ ada_language_server/gnat/lsp_server.gpr
@@ -15,7 +15,6 @@
 -- of the license.                                                          --
 ------------------------------------------------------------------------------
 
-with "gpr2.gpr";
 with "libadalang";
 with "lal_tools.gpr";
 with "ada_libfswatch.gpr";