Add latest version of gmp (#2695)

var/spack/repos/builtin/packages/gmp/package.py

@@ -26,12 +26,13 @@
 
 
 class Gmp(AutotoolsPackage):
-    """GMP is a free library for arbitrary precision arithmetic,
-       operating on signed integers, rational numbers, and
-       floating-point numbers."""
+    """GMP is a free library for arbitrary precision arithmetic, operating
+    on signed integers, rational numbers, and floating-point numbers."""
+
     homepage = "https://gmplib.org"
     url = "https://gmplib.org/download/gmp/gmp-6.0.0a.tar.bz2"
 
+    version('6.1.2',  '8ddbb26dc3bd4e2302984debba1406a5')
     version('6.1.1',  '4c175f86e11eb32d8bf9872ca3a8e11d')
     version('6.1.0',  '86ee6e54ebfc4a90b643a65e402c4048')
     version('6.0.0a', 'b7ff2d88cae7f8085bd5006096eed470')
@@ -41,7 +42,7 @@ class Gmp(AutotoolsPackage):
 
     def configure_args(self):
         args = ['--enable-cxx']
-        # We need this flag if we want all the following checks to pass.
+        # This flag is necessary for the Intel build to pass `make check`
         if self.spec.compiler.name == 'intel':
             args.append('CXXFLAGS=-no-ftz')