7 files changed, 20 insertions, 0 deletions
diff --git a/src/algebra/clip.spad.pamphlet b/src/algebra/clip.spad.pamphlet
index 30ee0ff3..d4eaf937 100644
--- a/src/algebra/clip.spad.pamphlet
+++ b/src/algebra/clip.spad.pamphlet
@@ -96,6 +96,8 @@ TwoDimensionalPlotClipping(): Exports == Implementation where
     Pnan? p == any?(Fnan?,p)
    
     iClipParametric(pointLists,fraction,scale) ==
+      import Point SF
+      import List Point SF
       -- error checks and special cases
       negative? fraction or (fraction > 1) =>
         error "clipDraw: fraction should be between 0 and 1"
diff --git a/src/algebra/draw.spad.pamphlet b/src/algebra/draw.spad.pamphlet
index fe9ddefe..b5e7bae8 100644
--- a/src/algebra/draw.spad.pamphlet
+++ b/src/algebra/draw.spad.pamphlet
@@ -232,6 +232,7 @@ TopLevelDrawFunctionsForCompiledFunctions():
     import AnyFunctions1((SF,SF,SF) -> SF)
     import DrawOptionFunctions0
     import SPACE3
+    import DROP
 
     EXTOVARERROR : String := _
       "draw: when specifying function, left hand side must be a variable"
@@ -778,6 +779,7 @@ TopLevelDrawFunctions(Ex:Join(ConvertibleTo InputForm,SetCategory)):
 --% Two Dimensional Function Plots
  
     draw(f:Ex,bind:BIND,l:L DROP) ==
+      import DROP
       -- create title if necessary
       if not option?(l,"title" :: Symbol) then
         s:String := unparse(convert(f)@InputForm)
@@ -792,6 +794,7 @@ TopLevelDrawFunctions(Ex:Join(ConvertibleTo InputForm,SetCategory)):
 --% Parametric Plane Curves
 
     draw(ppc:PPC,bind:BIND,l:L DROP) ==
+      import DROP
       f := coordinate(ppc,1); g := coordinate(ppc,2)
       -- create title if necessary
       if not option?(l,"title" :: Symbol) then
@@ -812,6 +815,7 @@ TopLevelDrawFunctions(Ex:Join(ConvertibleTo InputForm,SetCategory)):
 ------------------------------------------------------------------------
 
     makeObject(psc:PSC,tBind:BIND,l:L DROP) ==
+      import DROP
       -- obtain dependent variable and coordinate functions
       t := variable tBind; tSeg := segment tBind
       f := coordinate(psc,1); g := coordinate(psc,2); h := coordinate(psc,3)
@@ -835,6 +839,7 @@ TopLevelDrawFunctions(Ex:Join(ConvertibleTo InputForm,SetCategory)):
       makeObject(psc,tBind,nil())
 
     draw(psc:PSC,tBind:BIND,l:L DROP) ==
+      import DROP
       -- obtain dependent variable and coordinate functions
       t := variable tBind; tSeg := segment tBind
       f := coordinate(psc,1); g := coordinate(psc,2); h := coordinate(psc,3)
@@ -864,6 +869,7 @@ TopLevelDrawFunctions(Ex:Join(ConvertibleTo InputForm,SetCategory)):
 --% Three Dimensional Function Plots
 
     makeObject(f:Ex,xBind:BIND,yBind:BIND,l:L DROP) ==
+      import DROP
       -- create title if necessary
       if not option?(l,"title" :: Symbol) then
         s:String := unparse(convert(f)@InputForm)
@@ -883,6 +889,7 @@ TopLevelDrawFunctions(Ex:Join(ConvertibleTo InputForm,SetCategory)):
       makeObject(f,xBind,yBind,nil())
 
     draw(f:Ex,xBind:BIND,yBind:BIND,l:L DROP) ==
+      import DROP
       -- create title if necessary
       if not option?(l,"title" :: Symbol) then
         s:String := unparse(convert(f)@InputForm)
@@ -904,6 +911,7 @@ TopLevelDrawFunctions(Ex:Join(ConvertibleTo InputForm,SetCategory)):
 --% parametric surface
 
     makeObject(s:PSF,uBind:BIND,vBind:BIND,l:L DROP) ==
+      import DROP
       f := coordinate(s,1); g := coordinate(s,2); h := coordinate(s,3)
       if not option?(l,"title" :: Symbol) then
         s:String := unparse(convert(f)@InputForm)
@@ -923,6 +931,7 @@ TopLevelDrawFunctions(Ex:Join(ConvertibleTo InputForm,SetCategory)):
       makeObject(s,uBind,vBind,nil())
 
     draw(s:PSF,uBind:BIND,vBind:BIND,l:L DROP) ==
+      import DROP
       f := coordinate(s,1); g := coordinate(s,2); h := coordinate(s,3)
       -- create title if necessary
       if not option?(l,"title" :: Symbol) then
@@ -995,6 +1004,7 @@ TopLevelDrawFunctionsForAlgebraicCurves(R,Ex): Exports == Implementation where
     import SegmentFunctions2(RN,F)
     import SegmentFunctions2(F,RN)
     import AnyFunctions1(L SEG RN)
+    import DROP
 
     drawToScaleRanges: (SEG F,SEG F) -> L SEG F
     drawToScaleRanges(xVals,yVals) ==
diff --git a/src/algebra/drawopt.spad.pamphlet b/src/algebra/drawopt.spad.pamphlet
index c24e8fae..2b5b0dce 100644
--- a/src/algebra/drawopt.spad.pamphlet
+++ b/src/algebra/drawopt.spad.pamphlet
@@ -244,6 +244,7 @@ DrawOptionFunctions1(S:Type): Exports == Implementation where
     ++ is contained in the list of drawing options, l, which is defined
     ++ by the draw command.
  Implementation ==> add
+  import DrawOption
   option(l, s) ==
     (u := option(l, s)@Union(Any, "failed")) case "failed" => "failed"
     retract(u::Any)$AnyFunctions1(S)
diff --git a/src/algebra/drawpak.spad.pamphlet b/src/algebra/drawpak.spad.pamphlet
index 1b71cd40..b9d3a0b6 100644
--- a/src/algebra/drawpak.spad.pamphlet
+++ b/src/algebra/drawpak.spad.pamphlet
@@ -96,6 +96,7 @@ DrawComplex(): Exports == Implementation where
       min(max(x, -clipValue), clipValue)
  
     drawComplex(f, realRange, imagRange, arrows?) ==
+      import Point SF
       delReal := (hi(realRange) - lo(realRange))/realSteps::SF
       delImag := (hi(imagRange) - lo(imagRange))/imagSteps::SF
       funTable: ARRAY2(PC) := 
@@ -137,6 +138,7 @@ DrawComplex(): Exports == Implementation where
       makeViewport3D(space, "Complex Function")$VIEW3D
  
     drawComplexVectorField(f, realRange, imagRange): VIEW3D ==
+      import Point SF
       -- compute the steps size of the grid
       delReal := (hi(realRange) - lo(realRange))/realSteps::SF
       delImag := (hi(imagRange) - lo(imagRange))/imagSteps::SF
diff --git a/src/algebra/manip.spad.pamphlet b/src/algebra/manip.spad.pamphlet
index 4735b5e7..04fdbce5 100644
--- a/src/algebra/manip.spad.pamphlet
+++ b/src/algebra/manip.spad.pamphlet
@@ -330,6 +330,9 @@ AlgebraicManipulations(R, F): Exports == Implementation where
         concat([concat(k, same), concat(n, expo)], ll)
 
       rootProduct x ==
+        import P,F,Z
+        import List K
+        import List Z
         for rec in breakup rootkernels tower x repeat
           k0 := first(l := rec.ker)
           nx := numer x; dx := denom x
diff --git a/src/algebra/oderf.spad.pamphlet b/src/algebra/oderf.spad.pamphlet
index 2fb8bf0a..45decdf3 100644
--- a/src/algebra/oderf.spad.pamphlet
+++ b/src/algebra/oderf.spad.pamphlet
@@ -220,6 +220,7 @@ PrimitiveRatDE(F, UP, L, LQ): Exports == Implementation where
     indicialEquation(op:L, a:F) == indeq(monomial(1, 1) - a::UP, op)
 
     splitDenominator(op, lg) ==
+      import RF
       cd := splitDenominator coefficients op
       f  := cd.den / gcd(cd.num)
       l:L := 0
diff --git a/src/algebra/patmatch1.spad.pamphlet b/src/algebra/patmatch1.spad.pamphlet
index 2189e13e..2b7da476 100644
--- a/src/algebra/patmatch1.spad.pamphlet
+++ b/src/algebra/patmatch1.spad.pamphlet
@@ -309,6 +309,7 @@ PatternMatchKernel(S, E): Exports == Implementation where
       patternMatchOpt   : (E, List PAT, PRS, E) -> PRS
 
       patternMatchOpt(x, lp, l, id) ==
+        import PAT
         (u := optpair lp) case List(PAT) =>
           failed?(l := addMatch(first(u::List(PAT)), id, l)) => failed()
           patternMatch(x, second(u::List(PAT)), l)