Disable the tests that don't work with minimal/do.

...only when running under minimal/do, of course.

The tests in question mostly fail because they're testing particular
dependency-related behaviour, and minimal/do doesn't support dependencies,
so naturally it doesn't work.

t/deps/basic/test.do

@@ -7,6 +7,7 @@ redo-ifchange 1.out 2.out
 ../../flush-cache.sh
 touch 1.in
 redo-ifchange 1.out 2.out
-[ "$(cat 1.log | wc -l)" = 2 ] || exit 57
 [ "$(cat 2.log | wc -l)" = 1 ] || exit 58
+. ../../skip-if-minimal-do.sh
+[ "$(cat 1.log | wc -l)" = 2 ] || exit 57
 

t/deps/dirtest/test.do

@@ -9,6 +9,7 @@ redo t1
 redo-ifchange t1
 C1="$(wc -l <dir1/log)"
 C2="$(wc -l <log)"
+. ../../skip-if-minimal-do.sh
 if [ "$C1" != 1 -o "$C2" != 2 ]; then
 	echo "failed: t1>t1, c1=$C1, c2=$C2" >&2
 	exit 55

t/deps/doublestatic.do

@@ -7,4 +7,5 @@ touch static.in
 redo-ifchange static1 static2
 
 COUNT=$(wc -l <static.log)
+. ../skip-if-minimal-do.sh
 [ "$COUNT" = 4 ] || exit 55

t/deps/gentest.do

@@ -17,4 +17,5 @@ redo-ifchange genfile1
 redo-ifchange genfile1
 
 COUNT=$(wc -l <genfile.log)
+. ../skip-if-minimal-do.sh
 [ "$COUNT" = 2 ] || exit 77

t/deps/overwrite.do

@@ -1,3 +1,5 @@
+. ../skip-if-minimal-do.sh
+
 redo overwrite1 2>&1 && exit 55
 redo overwrite2 2>&1 && exit 56
 redo overwrite3 2>&1 && exit 57

t/deps/test2.do

@@ -2,6 +2,7 @@ rm -f t2.count
 redo t2
 redo t2
 OUT=$(cat t2.count | wc -l)
+. ../skip-if-minimal-do.sh
 if [ "$OUT" != 2 ]; then
 	echo "t2: expected 2"
 	exit 43