sysdeps redesign: first part: minimize clr tests

 Remaining clr:
  emptyregex: can be safely guessed to no
  nullispointer: can't be safely guessed, but do we need the test?
  devurandom: can't be safely guessed
  malloc0: can more or less be safely guessed to no

1 files changed, 39 insertions, 0 deletions

diff --git a/tools/gen-sysdepsh.sh b/tools/gen-sysdepsh.sh
new file mode 100755
index 0000000..f6194f2
--- /dev/null
+++ b/tools/gen-sysdepsh.sh
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+cat <<EOF
+/* ISC license. */
+
+#ifndef SYSDEPS_H
+#define SYSDEPS_H
+
+#undef SKALIBS_TARGET
+#define SKALIBS_TARGET "$1"
+
+EOF
+
+while read k v ; do
+  k=$(echo "${k%%:}" | tr a-z A-Z)
+  if test ${k} != ${k##SIGNED} ; then
+    echo "#undef SKALIBS_HASUN$k"
+    echo "#undef SKALIBS_HAS$k"
+    if test $v = yes ; then
+      echo "#define SKALIBS_HAS$k"
+    else
+      echo "#define SKALIBS_HASUN$k"
+    fi
+  elif test ${k} != ${k##SIZEOF} ; then
+    echo "#undef SKALIBS_HAS$k"
+    echo "#define SKALIBS_HAS$k $v"
+  elif test ${k} = ENDIANNESS ; then
+    echo '#undef SKALIBS_ENDIANNESS'
+    echo "#define SKALIBS_ENDIANNESS $v"
+  else
+    echo "#undef SKALIBS_HAS$k"
+    if test $v = yes ; then
+      echo "#define SKALIBS_HAS$k"
+    fi
+  fi
+  echo
+done
+
+echo '#endif'