man: mention ltlsynt in spot(7)

Fixes #292.

* bin/man/spot.x, bin/spot.cc: Add missing cross references.
* tests/sanity/bin.test: Add safety checks so we do not forget
again.

bin/man/spot.x

@@ -22,6 +22,7 @@ that are listed below.
 .BR ltldo (1)
 .BR ltlfilt (1)
 .BR ltlgrind (1)
+.BR ltlsynt (1)
 .BR randaut (1)
 .BR randltl (1)
 .BR spot-x (7)

bin/spot.cc

@@ -37,9 +37,9 @@ static const argp_option options[] =
     { DOC("ltlgrind", "Mutate LTL or PSL formulas to generate similar but "
           "simpler ones.  Use this when looking for shorter formula to "
           "reproduce a bug.") },
-    { nullptr, 0, nullptr, 0, "Tools that output automata:", 0 },
+    { nullptr, 0, nullptr, 0, "Tools that output automata or circuits:", 0 },
     { DOC("randaut", "Generate random ω-automata.") },
-    { DOC("genaut", "Generate ω from scalable patterns.") },
+    { DOC("genaut", "Generate ω-automata from scalable patterns.") },
     { DOC("ltl2tgba", "Convert LTL or PSL into variants of Transition-based "
           "Generalized Büchi Automata.") },
     { DOC("ltl2tgta", "Convert LTL or PSL into variants of Transition-based "
@@ -47,6 +47,8 @@ static const argp_option options[] =
     { DOC("autfilt", "Filter, convert, and transform ω-automata.") },
     { DOC("dstar2tgba", "Convert ω-automata into variants of "
           "Transition-based Büchi automata.") },
+    { DOC("ltlsynt",
+          "Synthesize AIGER circuits from LTL/PSL specifications.") },
     { nullptr, 0, nullptr, 0, "Tools that run other tools:", 0 },
     { DOC("autcross", "Cross-compare tools processing ω-automata,"
           " watch for bugs, and generate statistics.") },

tests/sanity/bin.test

@@ -55,6 +55,26 @@ do
         fi
     fi
 
+    case $binary in
+        spot);;
+        *)
+            if ! grep -q "BR $binary " $top_srcdir/bin/man/spot.x; then
+                echo "bin/$binary is not listed in bin/man/spot.x"
+                exit_status=2
+            fi
+            ;;
+    esac
+    case $binary in
+        spot);;
+        spot-x);;
+        *)
+            if ! grep -q "\"$binary\"" $top_srcdir/bin/spot.cc; then
+                echo "bin/$binary is not listed in bin/spot.cc"
+                exit_status=2
+            fi
+            ;;
+    esac
+
     # All man pages
     case $manpage in
         *.1)
@@ -93,4 +113,12 @@ do
 
 done
 
+grep '^.BR [a-z0-9-]* ([0-9])' "$top_srcdir"/bin/man/spot.x |
+    while read br tool num; do
+        if ! test -f $top_builddir/bin/$tool; then
+            echo "bin/man/spot.x mentions unexisting tool $tool"
+            exit_status=2
+        fi
+    done
+
 exit $exit_status