[7606] shell builtin "test" not invoked if appears alone

[kabe]

(Also submitted as BugID 7606)

(Platform: QNX 6.2.0)
* When a "test" command is a shell builtin, and
* no /bin/test as a file is provided in the system,

all:
        test

will fail with "make: test: Command not found" .
You could easily reproduce this by setting PATH to bogus path, as
$ PATH=/nosuchdir /usr/gnu/bin/make


POSIX says the line should be processed like system("test")
which will be execvp("/bin/sh","-c","test") which will succeed,

but GNU make tries to optimize avoiding /bin/sh,
which tries execvp("test") and fails.

GNU automake uses this bare "test" in several testsuite.


Suggested patch:

Just add "test" to the shell builtin table in job.c .
This shouldn't hurt platforms which has/needs explicit /bin/test.

================================================
--- job.c.dist  Sat Aug 10 01:27:17 2002
+++ job.c       Fri Feb  6 14:04:54 2004
@@ -2484,7 +2484,7 @@
                             "logout", "set", "umask", "wait", "while", "for",
                             "case", "if", ":", ".", "break", "continue",
                             "export", "read", "readonly", "shift", "times",
-                            "trap", "switch", 0 };
+                            "trap", "switch", "test", 0 };
 #endif /* WINDOWS32 */
 #endif /* Amiga */
 #endif /* __MSDOS__ */
================================================