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

3 files changed, 44 insertions, 10 deletions

diff --git a/tools/gen-bits-internal.sh b/tools/gen-bits-internal.sh
deleted file mode 100755
index 93e64ab..0000000
--- a/tools/gen-bits-internal.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/sh -e
-
-bits="$1"
-dfmt="$2"
-ofmt="$3"
-xfmt="$4"
-bfmt="$5"
-
-exec sed -e "s/@BITS@/$bits/g; s/@DFMT@/$dfmt/g; s/@OFMT@/$ofmt/g; s/@XFMT@/$xfmt/g; s/@BFMT@/$bfmt/g;" < src/headers/bits-template
diff --git a/tools/gen-bits.sh b/tools/gen-bits.sh
index 951a7d9..01aa9b8 100755
--- a/tools/gen-bits.sh
+++ b/tools/gen-bits.sh
@@ -7,6 +7,10 @@ ofmt="$4"
 xfmt="$5"
 bfmt="$6"
 
+gen_bits() {
+  sed -e "s/@BITS@/$1/g; s/@DFMT@/$2/g; s/@OFMT@/$3/g; s/@XFMT@/$4/g; s/@BFMT@/$5/g;" < src/headers/bits-template
+}
+
 tools/gen-types-internal.sh "" "" "$bits" < src/headers/bits-header
 
 if test "$bits" = 64 ; then
@@ -33,5 +37,5 @@ else
 fi
 
 tools/gen-types-internal.sh "" "" "$bits" < src/headers/bits-${endian}endian
-tools/gen-bits-internal.sh "$bits" "$dfmt" "$ofmt" "$xfmt" "$bfmt"
+gen_bits "$bits" "$dfmt" "$ofmt" "$xfmt" "$bfmt"
 exec tools/gen-types-internal.sh "" "" "$bits" < src/headers/bits-footer
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'