[PATCH] tests: correctly restrict factor test without GMP

[Pádraig Brady]

* tests/misc/factor.pl: Correct the precedence and
regular expression in the command to check for GMP.
---
 tests/misc/factor.pl |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tests/misc/factor.pl b/tests/misc/factor.pl
index 8f6edaa..540984f 100755
--- a/tests/misc/factor.pl
+++ b/tests/misc/factor.pl
@@ -76,7 +76,7 @@ my @Tests =
     );
 
 # If we have GMP support, append tests to exercise it.
-system "grep -w HAVE_GMP $ENV{CONFIG_HEADER} > /dev/null" == 0
+(system "grep '^#define HAVE_GMP 1' $ENV{CONFIG_HEADER} > /dev/null") == 0
   and push (@Tests,
             ['bug-gmp-2_sup_128', '340282366920938463463374607431768211456',
              {OUT => '2 'x127 . '2'}],
-- 
1.7.6.4