Fix build with latest visual studio (2019)
diff --git a/bn_s_mp_rand_platform.c b/bn_s_mp_rand_platform.c
index 07555db..27339bf 100644
--- a/bn_s_mp_rand_platform.c
+++ b/bn_s_mp_rand_platform.c
@@ -27,16 +27,9 @@ static mp_err s_read_arc4random(void *p, size_t n)
#define ARM
#endif
-#ifdef _MSC_VER
-# pragma warning(push)
-# pragma warning (disable : 4668)
-#endif
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <wincrypt.h>
-#ifdef _MSC_VER
-# pragma warning(pop)
-#endif
static mp_err s_read_wincsp(void *p, size_t n)
{
diff --git a/makefile.msvc b/makefile.msvc
index d155bc6..aa8d8be 100644
--- a/makefile.msvc
+++ b/makefile.msvc
@@ -14,7 +14,7 @@ PREFIX = c:\devel
CFLAGS = /Ox
#Compilation flags
-LTM_CFLAGS = /nologo /I./ /D_CRT_SECURE_NO_WARNINGS /D_CRT_NONSTDC_NO_DEPRECATE /D__STDC_WANT_SECURE_LIB__=1 /D_CRT_HAS_CXX17=0 /Wall /wd4146 /wd4127 /wd4710 /wd4711 /wd4820 /WX $(CFLAGS)
+LTM_CFLAGS = /nologo /I./ /D_CRT_SECURE_NO_WARNINGS /D_CRT_NONSTDC_NO_DEPRECATE /D__STDC_WANT_SECURE_LIB__=1 /D_CRT_HAS_CXX17=0 /Wall /wd4146 /wd4127 /wd4668 /wd4710 /wd4711 /wd4820 /wd5045 /WX $(CFLAGS)
LTM_LDFLAGS = advapi32.lib
#Libraries to be created (this makefile builds only static libraries)