maint: use $(CONFIG_INCLUDE) rather than the hardcoding lib/config.h

* tests/check.mk (TESTS_ENVIRONMENT): Use the generated CONFIG_INCLUDE
variable.  Note $(abs_builddir)/$(CONFIG_HEADER) also currently works,
but $(CONFIG_HEADER) is deprecated and may not be generated in future.
$(CONFIG_INCLUDE) was made available by gnulib in commit, 22970f8a,
"syntax-check: detect incorrect boolean macro values in config.h"

diff --git a/tests/check.mk b/tests/check.mk
index 86f7dc2..d3b08e0 100644 (file)
--- a/tests/check.mk
+++ b/tests/check.mk
@@ -79,7 +79,7 @@ TESTS_ENVIRONMENT =                           \
   host_triplet='$(host_triplet)'               \
   srcdir='$(srcdir)'                           \
   top_srcdir='$(top_srcdir)'                   \
-  CONFIG_HEADER='$(abs_top_builddir)/lib/config.h' \
+  CONFIG_HEADER='$(abs_top_builddir)/$(CONFIG_INCLUDE)' \
   CU_TEST_NAME=`basename '$(abs_srcdir)'`,`echo $$tst|sed 's,^\./,,;s,/,-,g'` \
   CC='$(CC)'                                   \
   AWK='$(AWK)'                                 \