+include_compilers = "$(CC)" "$(CC) -ansi" "$(CC) -std=iso9899:1990"
+public_headers = $(filter-out src/systemd/_sd-common.h, $(pkginclude_HEADERS) $(include_HEADERS))
+.PHONY: dist-check-includes
+dist-check-includes: $(public_headers)
+ @res=0; \
+ for i in $(abspath $^); do \
+ for cc in $(include_compilers); do \
+ echo "$$cc -o/dev/null -c -x c -include "$$i" - </dev/null"; \
+ $$cc -o/dev/null -c -x c -include "$$i" - </dev/null || res=1; \
+ done; \
+ done; exit $$res
+