In usr.bin/rpcgen/rpc_main.c, use execvp(3) instead of execv(3), so

rpcgen will search the current PATH for the preprocessor.  This makes it
possible to run a preprocessor built during the cross-tools stage of
buildworld.

MFC after:	1 week

1 files changed, 2 insertions, 8 deletions

diff --git a/usr.bin/rpcgen/rpc_main.c b/usr.bin/rpcgen/rpc_main.c
index 7cff9bf..a54c3e9 100644
--- a/usr.bin/rpcgen/rpc_main.c
+++ b/usr.bin/rpcgen/rpc_main.c
@@ -290,7 +290,6 @@ prepend_cpp(void)
 	int idx = 1;
 	const char *var;
 	char *dupvar, *s, *t;
-	struct stat buf;
 
 	if (CPP != NULL)
 		insarg(0, CPP);
@@ -306,11 +305,6 @@ prepend_cpp(void)
 		free(dupvar);
 	}
 
-	if (stat(arglist[0], &buf) < 0) {
-		warnx("cannot find C preprocessor: %s", arglist[0]);
-		crash();
-	}
-
 	insarg(idx, CPPFLAGS);
 }
 
@@ -334,8 +328,8 @@ open_input(const char *infile, const char *define)
 		(void) close(1);
 		(void) dup2(pd[1], 1);
 		(void) close(pd[0]);
-		execv(arglist[0], arglist);
-		err(1, "execv");
+		execvp(arglist[0], arglist);
+		err(1, "execvp %s", arglist[0]);
 	case -1:
 		err(1, "fork");
 	}