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-rw-r--r--Rules8
1 files changed, 6 insertions, 2 deletions
diff --git a/Rules b/Rules
index 2a54a39529..adcddc6b44 100644
--- a/Rules
+++ b/Rules
@@ -205,14 +205,18 @@ endif
iov_max=`sed -n 's/^#define UIO_MAXIOV //p' $(@:st=hT)`; \
fopen_max=$${fopen_max:-16}; \
filename_max=$${filename_max:-1024}; \
- iov_max=$${iov_max:-_XOPEN_IOV_MAX}; \
+ if [ -z $$iov_max ]; then \
+ define_iov_max="# undef IOV_MAX"; \
+ else \
+ define_iov_max="# define IOV_MAX $$iov_max"; \
+ fi; \
sed -e "s/@FOPEN_MAX@/$$fopen_max/" \
-e "s/@FILENAME_MAX@/$$filename_max/" \
-e "s/@L_tmpnam@/$(L_tmpnam)/" \
-e "s/@TMP_MAX@/$(TMP_MAX)/" \
-e "s/@L_ctermid@/$(L_ctermid)/" \
-e "s/@L_cuserid@/$(L_cuserid)/" \
- -e "s/@IOV_MAX@/$$iov_max/" \
+ -e "s/@define_IOV_MAX@/$$define_iov_max/" \
$< > $(@:st=h.new)
$(move-if-change) $(@:st=h.new) $(@:st=h)
# Remove these last so that they can be examined if something went wrong.