- add hack to check if generating sysnum.h worked out

diff --git a/Makefile.in b/Makefile.in
index 174daca..eb9d15d 100644 (file)
--- a/Makefile.in
+++ b/Makefile.in
@@ -167,6 +167,15 @@ include/bits/sysnum.h: $(top_srcdir)extra/scripts/gen_bits_syscall_h.sh
        else \
                mv -f $$tmp include/bits/sysnum.h; \
        fi
+       @# Ugly linux specific hack..
+       $(Q)if grep -q __NR_ $@; then true; else \
+               rm -f $@; \
+               echo "ERROR: Could not generate syscalls."; \
+               echo "Make sure that you have proper kernel headers."; \
+               echo "Your .config in KERNEL_HEADERS=\"\" was set to:"; \
+               echo "${KERNEL_HEADERS}"; \
+               exit 1; \
+       fi
 
 $(LOCAL_INSTALL_PATH):
        $(Q)$(MAKE) PREFIX=$(shell pwd)/ RUNTIME_PREFIX=./ \