6 files changed, 4 insertions, 6 deletions
diff --git a/src/math/gfpmath/curve_gfp.cpp b/src/math/gfpmath/curve_gfp.cpp
index 37555ea06..e12ade081 100644
--- a/src/math/gfpmath/curve_gfp.cpp
+++ b/src/math/gfpmath/curve_gfp.cpp
@@ -10,6 +10,7 @@
 #include <botan/curve_gfp.h>
 #include <botan/bigint.h>
 #include <assert.h>
+#include <ostream>
 
 namespace Botan {
 
diff --git a/src/math/gfpmath/curve_gfp.h b/src/math/gfpmath/curve_gfp.h
index 90d64b45d..81cf6ce51 100644
--- a/src/math/gfpmath/curve_gfp.h
+++ b/src/math/gfpmath/curve_gfp.h
@@ -14,7 +14,7 @@
 
 #include <botan/bigint.h>
 #include <botan/gfp_element.h>
-#include <iostream>
+#include <iosfwd>
 
 namespace Botan {
 
diff --git a/src/math/gfpmath/gfp_element.cpp b/src/math/gfpmath/gfp_element.cpp
index 183d7d4ab..b71809301 100644
--- a/src/math/gfpmath/gfp_element.cpp
+++ b/src/math/gfpmath/gfp_element.cpp
@@ -16,6 +16,7 @@
 #include <botan/mp_asm.h>
 #include <botan/mp_asmi.h>
 #include <assert.h>
+#include <ostream>
 
 namespace Botan {
 
diff --git a/src/math/gfpmath/gfp_element.h b/src/math/gfpmath/gfp_element.h
index 0a1b4910c..4e0ee985b 100644
--- a/src/math/gfpmath/gfp_element.h
+++ b/src/math/gfpmath/gfp_element.h
@@ -14,7 +14,7 @@
 
 #include <botan/bigint.h>
 #include <botan/gfp_modulus.h>
-#include <iostream>
+#include <iosfwd>
 
 #if defined(BOTAN_USE_STD_TR1)
   #include <tr1/memory>
diff --git a/src/math/numbertheory/ressol.cpp b/src/math/numbertheory/ressol.cpp
index 6a078726d..d51acb8bd 100644
--- a/src/math/numbertheory/ressol.cpp
+++ b/src/math/numbertheory/ressol.cpp
@@ -9,8 +9,6 @@
 #include <botan/numthry.h>
 #include <botan/reducer.h>
 
-#include <iostream>
-
 namespace Botan {
 
 /*
diff --git a/src/utils/scan_name.cpp b/src/utils/scan_name.cpp
index 3425425e2..ef771871d 100644
--- a/src/utils/scan_name.cpp
+++ b/src/utils/scan_name.cpp
@@ -10,8 +10,6 @@ SCAN Name Abstraction
 #include <botan/libstate.h>
 #include <stdexcept>
 
-#include <iostream>
-
 namespace Botan {
 
 namespace {