build: Fix check-driverimpls in VPATH

DRIVER_SOURCE_FILES mixes files with absolute path (inherited from
REMOTE_DRIVER_GENERATED) with file paths that are relative to srcdir but
check-driverimpls.pl needs full paths.

diff --git a/src/Makefile.am b/src/Makefile.am
index 6c626ace2c154a7a1ffe9e0c0ae6fb3b605f746a..9a17f595d64ef9676606a87d027a6de039e8248c 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -468,7 +468,8 @@ DRIVER_SOURCE_FILES = \
 
 check-driverimpls:
        $(AM_V_GEN)$(PERL) $(srcdir)/check-driverimpls.pl \
-               $(DRIVER_SOURCE_FILES)
+               $(filter /%,$(DRIVER_SOURCE_FILES)) \
+               $(addprefix $(srcdir)/,$(filter-out /%,$(DRIVER_SOURCE_FILES)))
 
 EXTRA_DIST += check-driverimpls.pl