casa-mp-base

Fix build on High Sierra and later

https://sourceforge.net/p/dc3dd/bugs/17/

https://lists.gnu.org/archive/html/bug-gnulib/2017-07/msg00057.html

--- lib/vasnprintf.c.orig   2012-11-06 06:42:58.000000000 -0600

+++ lib/vasnprintf.c    2017-11-28 04:10:15.000000000 -0600

@@ -4137,7 +4137,7 @@

 #endif

          *fbp = dp->conversion;

 #if USE_SNPRINTF

-# if !(__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) || ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))

+# if !(__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) || (defined __APPLE__ && defined __MACH__) || ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))

        fbp[1] = '%';

        fbp[2] = 'n';

        fbp[3] = '\0';