BF - fixed parameter / variable nastiness in gfortran

original/Makefile

@@ -1,4 +1,5 @@
 FC = gfortran
+FFLAGS = -g -Wall
 
 STRIPACK_F90S = addnod arc_cosine areas bdyadd bnodes circum covsph crlist \
 		delarc delnb delnod edge getnp insert inside intadd intrsc \
@@ -14,19 +15,20 @@ fsplit: f90split/f90split.o
 
 clean:
 	- rm *.f90
+	- rm -rf */*.o
 	- rm fsplit
 	- rm libstripack.a
 	- rm stirpack_prb*
+	- rm -rf temp
 
 libstripack.a: stripack/stripack.f90 fsplit
 	- rm -rf temp
 	- mkdir temp
 	cd temp && ../fsplit ../stripack/stripack.f90
 	for filename in $(STRIPACK_F90S); do \
-	$(FC) -c temp/$${filename}.f90 -o temp/$${filename}.o; \
+	$(FC) $(FFLAGS) -c temp/$${filename}.f90 -o temp/$${filename}.o; \
 	done ;
 	ar qc libstripack.a temp/*.o
-	rm -rf temp
 
 stripack-test: libstripack.a stripack/stripack_prb.o
 	$(FC) -o stripack_prb stripack/stripack_prb.o -L. -lstripack

original/stripack/stripack_prb.f90

@@ -62,6 +62,7 @@ program stripack_prb
   integer nt
   logical numbr
   integer nv
+  integer vnmax
   real p(3)
   real, parameter :: pltsiz = 7.5E+00
   real rc(2*nmax-4)
@@ -84,6 +85,11 @@ program stripack_prb
   real yc(2*nmax-4)
   real z(nmax)
   real zc(2*nmax-4)
+!
+! store nmax in variable so it is mutable.  Otherwise, when nmax is used as a
+! mutable variable in subroutines, nasty errors can result in gfortran at least
+!
+  vnmax = nmax
 !
   call timestamp ( )
 
@@ -436,7 +442,7 @@ program stripack_prb
   n1 = 1
   n2 = n
 
-  call edge ( n1, n2, x, y, z, nmax, iwk, list, lptr, lend, ier )
+  call edge ( n1, n2, x, y, z, vnmax, iwk, list, lptr, lend, ier )
 
   if ( ier /= 0 .and. ier /= 5 ) then
     write ( *, '(a)' ) ' '
@@ -460,7 +466,7 @@ program stripack_prb
 
     do
 
-      call delnod ( nn, nn, x, y, z, list, lptr, lend, lnew, nmax, iwk, ier )
+      call delnod ( nn, nn, x, y, z, list, lptr, lend, lnew, vnmax, iwk, ier )
 
       if ( ier /= 0 .and. ier /= 5 ) then
         write ( *, '(a)' ) ' '