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-rw-r--r--sysdeps/unix/errnos.awk12
1 files changed, 12 insertions, 0 deletions
diff --git a/sysdeps/unix/errnos.awk b/sysdeps/unix/errnos.awk
new file mode 100644
index 0000000..8648f41
--- /dev/null
+++ b/sysdeps/unix/errnos.awk
@@ -0,0 +1,12 @@
+BEGIN { special = 0 }
+
+/ERRNOS/ { nerrnos = split(errnos, errs)
+ for (i = 1; i <= nerrnos; ++i)
+ # Some systems define errno codes inside undefined #ifdefs,
+ # and then never actually use them.
+ printf "#ifdef %s\n DO(\"%s\", %s);\n#endif\n", \
+ errs[i], errs[i], errs[i]
+ special = 1 }
+
+
+{ if (special == 0) print $0; special = 0 }