commit - 14367520a219d579ff96ef610cf113859285d324
commit + 5ed63a9b4e4e552b3c0c27d34f3f1707e2f569ea
blob - fb6af1333f6f4a5ad99f86bf28a88ce92586c644
blob + 4f5282eca2c29e0a202a2b91e75e5c0e39a368f0
--- src/cmd/eqn/e.h
+++ src/cmd/eqn/e.h
@@ -1,4 +1,3 @@
-#include <u.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
blob - a7432f3316bfc36a464edd08721f0386b4c26d2f
blob + eb7fa18026cb378e530f9c25ba6754abcff62f83
--- src/cmd/eqn/input.c
+++ src/cmd/eqn/input.c
@@ -189,9 +189,9 @@ input(void)
 				ERROR "argfp underflow" FATAL;
 			popsrc();
 			goto loop;
-		} else if (c == '$' && isdigit((uchar)*srcp->sp)) {
+		} else if (c == '$' && isdigit((unsigned char)*srcp->sp)) {
 			int n = 0;
-			while (isdigit((uchar)*srcp->sp))
+			while (isdigit((unsigned char)*srcp->sp))
 				n = 10 * n + *srcp->sp++ - '0';
 			if (n > 0 && n <= MAXARGS)
 				pushsrc(String, argfp->argstk[n-1]);
blob - 67d3dae8cbd1a37b6e30c68ed974b5d49733c9a6
blob + d6864312d68cdf54b6d556de1364c06fa6c10ab1
--- src/cmd/eqn/size.c
+++ src/cmd/eqn/size.c
@@ -13,7 +13,7 @@ void setsize(char *p)	/* set size as found in p */
 		ps -= atoi(p+1);
 		if (szstack[nszstack-1] != 0)
 			szstack[nszstack] = ps;
-	} else if (isdigit((uchar)*p)) {
+	} else if (isdigit((unsigned char)*p)) {
 		if (szstack[nszstack-1] == 0)
 			printf(".nr %d \\n(.s\n", 99-nszstack);
 		else
@@ -52,7 +52,7 @@ void globsize(void)
 		gsize -= atoi(temp+1);
 		if (szstack[0] != 0)
 			szstack[0] = gsize;
-	} else  if (isdigit((uchar)temp[0])) {
+	} else  if (isdigit((unsigned char)temp[0])) {
 		gsize = atoi(temp);
 		szstack[0] = gsize;
 		printf(".nr 99 \\n(.s\n");