Fixes gcc error related to cstdint

Makefile

@@ -29,6 +29,9 @@ get-dakota-src:
 		git apply ../src_patches/dakota-src.patch && \
 		git apply ../src_patches/boost.patch && \
 		git apply ../src_patches/dakenv_restart.patch && \
+		git apply ../src_patches/cstdint_dak_types.patch && \
 		git apply --whitespace=nowarn ../src_patches/adaptsampl_batch.patch && \
 	    find . \( -name \*.cpp -o -name \*.hpp -o -name \*.c -o -name \*.h \) -exec \
 			sed -i -E -f ../src_patches/replace_old_macros_numpy.sed {} +
+	cd dakota/packages/external && \
+		git apply ../../../src_patches/cstdint.patch

src_patches/cstdint.patch

@@ -0,0 +1,24 @@
+diff --git a/trilinos/packages/teuchos/core/src/Teuchos_BigUInt.hpp b/trilinos/packages/teuchos/core/src/Teuchos_BigUInt.hpp
+index 5b6d3c5e..7fbfec7b 100644
+--- a/trilinos/packages/teuchos/core/src/Teuchos_BigUInt.hpp
++++ b/trilinos/packages/teuchos/core/src/Teuchos_BigUInt.hpp
+@@ -43,6 +43,7 @@
+ #define TEUCHOS_BIG_UINT_HPP
+
+ #include <iostream>
++#include <cstdint>
+ #include <Teuchos_BigUIntDecl.hpp>
+
+ /*! \file Teuchos_BigUInt.hpp
+diff --git a/trilinos/packages/teuchos/core/src/Teuchos_BigUIntDecl.hpp b/trilinos/packages/teuchos/core/src/Teuchos_BigUIntDecl.hpp
+index e82e8be9..a51f66cf 100644
+--- a/trilinos/packages/teuchos/core/src/Teuchos_BigUIntDecl.hpp
++++ b/trilinos/packages/teuchos/core/src/Teuchos_BigUIntDecl.hpp
+@@ -42,6 +42,7 @@
+ #ifndef TEUCHOS_BIG_UINT_DECL_HPP
+ #define TEUCHOS_BIG_UINT_DECL_HPP
+
++#include <cstdint>
+ #include <iosfwd>
+
+ /*! \file Teuchos_BigUIntDecl.hpp

src_patches/cstdint_dak_types.patch

@@ -0,0 +1,12 @@
+diff --git a/src/dakota_data_types.hpp b/src/dakota_data_types.hpp
+index 8771587..a430d51 100644
+--- a/src/dakota_data_types.hpp
++++ b/src/dakota_data_types.hpp
+@@ -21,6 +21,7 @@
+ #include <list>
+ #include <map>
+ #include <set>
++#include <cstdint>
+
+ namespace Dakota {
+