10 files changed, 13 insertions, 13 deletions
diff --git a/ext/json/generator/generator.c b/ext/json/generator/generator.c
index 1b9652df24..b9f10171c8 100644
--- a/ext/json/generator/generator.c
+++ b/ext/json/generator/generator.c
@@ -499,7 +499,7 @@ static void State_free(JSON_Generator_State *state)
     ruby_xfree(state);
 }
 
-static JSON_Generator_State *State_allocate()
+static JSON_Generator_State *State_allocate(void)
 {
     JSON_Generator_State *state = ALLOC(JSON_Generator_State);
     MEMZERO(state, JSON_Generator_State, 1);
@@ -1327,7 +1327,7 @@ static VALUE cState_buffer_initial_length_set(VALUE self, VALUE buffer_initial_l
 /*
  *
  */
-void Init_generator()
+void Init_generator(void)
 {
     rb_require("json/common");
 
diff --git a/ext/json/parser/parser.c b/ext/json/parser/parser.c
index 29335541d4..a8b606981c 100644
--- a/ext/json/parser/parser.c
+++ b/ext/json/parser/parser.c
@@ -2092,7 +2092,7 @@ static VALUE cParser_parse(VALUE self)
 }
 
 
-static JSON_Parser *JSON_allocate()
+static JSON_Parser *JSON_allocate(void)
 {
     JSON_Parser *json = ALLOC(JSON_Parser);
     MEMZERO(json, JSON_Parser, 1);
@@ -2145,7 +2145,7 @@ static VALUE cParser_quirks_mode_p(VALUE self)
 }
 
 
-void Init_parser()
+void Init_parser(void)
 {
     rb_require("json/common");
     mJSON = rb_define_module("JSON");
diff --git a/ext/openssl/ossl_pkey_ec.c b/ext/openssl/ossl_pkey_ec.c
index 5e419bd167..cec0059715 100644
--- a/ext/openssl/ossl_pkey_ec.c
+++ b/ext/openssl/ossl_pkey_ec.c
@@ -1556,7 +1556,7 @@ static void no_copy(VALUE klass)
     rb_undef_method(klass, "initialize_copy");
 }
 
-void Init_ossl_ec()
+void Init_ossl_ec(void)
 {
 #ifdef DONT_NEED_RDOC_WORKAROUND
     mOSSL = rb_define_module("OpenSSL");
@@ -1677,7 +1677,7 @@ void Init_ossl_ec()
 }
 
 #else /* defined NO_EC */
-void Init_ossl_ec()
+void Init_ossl_ec(void)
 {
 }
 #endif /* NO_EC */
diff --git a/ext/psych/psych.c b/ext/psych/psych.c
index 69ff1d8dfc..3bb59bfc11 100644
--- a/ext/psych/psych.c
+++ b/ext/psych/psych.c
@@ -20,7 +20,7 @@ static VALUE libyaml_version(VALUE module)
 
 VALUE mPsych;
 
-void Init_psych()
+void Init_psych(void)
 {
     mPsych = rb_define_module("Psych");
 
diff --git a/ext/psych/psych_emitter.c b/ext/psych/psych_emitter.c
index f0d032649c..d833b59c06 100644
--- a/ext/psych/psych_emitter.c
+++ b/ext/psych/psych_emitter.c
@@ -504,7 +504,7 @@ static VALUE set_line_width(VALUE self, VALUE width)
     return width;
 }
 
-void Init_psych_emitter()
+void Init_psych_emitter(void)
 {
     VALUE psych     = rb_define_module("Psych");
     VALUE handler   = rb_define_class_under(psych, "Handler", rb_cObject);
diff --git a/ext/psych/psych_parser.c b/ext/psych/psych_parser.c
index 8c65ce1307..19c7484124 100644
--- a/ext/psych/psych_parser.c
+++ b/ext/psych/psych_parser.c
@@ -535,7 +535,7 @@ static VALUE mark(VALUE self)
     return rb_class_new_instance(3, args, mark_klass);
 }
 
-void Init_psych_parser()
+void Init_psych_parser(void)
 {
 #if 0
     mPsych = rb_define_module("Psych");
diff --git a/ext/syslog/syslog.c b/ext/syslog/syslog.c
index 8ef722e1c0..6aa2cd8484 100644
--- a/ext/syslog/syslog.c
+++ b/ext/syslog/syslog.c
@@ -418,7 +418,7 @@ static VALUE mSyslogMacros_included(VALUE mod, VALUE target)
  *
  * The syslog protocol is standardized in RFC 5424.
  */
-void Init_syslog()
+void Init_syslog(void)
 {
     mSyslog = rb_define_module("Syslog");
 
diff --git a/ext/win32ole/win32ole_method.c b/ext/win32ole/win32ole_method.c
index 051ba429c9..4d3a398b14 100644
--- a/ext/win32ole/win32ole_method.c
+++ b/ext/win32ole/win32ole_method.c
@@ -901,7 +901,7 @@ folemethod_inspect(VALUE self)
     return default_inspect(self, "WIN32OLE_METHOD");
 }
 
-void Init_win32ole_method()
+void Init_win32ole_method(void)
 {
     cWIN32OLE_METHOD = rb_define_class("WIN32OLE_METHOD", rb_cObject);
     rb_define_alloc_func(cWIN32OLE_METHOD, folemethod_s_allocate);
diff --git a/ext/win32ole/win32ole_type.c b/ext/win32ole/win32ole_type.c
index c5ae53c3aa..48df6707e8 100644
--- a/ext/win32ole/win32ole_type.c
+++ b/ext/win32ole/win32ole_type.c
@@ -883,7 +883,7 @@ foletype_inspect(VALUE self)
     return default_inspect(self, "WIN32OLE_TYPE");
 }
 
-void Init_win32ole_type()
+void Init_win32ole_type(void)
 {
     cWIN32OLE_TYPE = rb_define_class("WIN32OLE_TYPE", rb_cObject);
     rb_define_singleton_method(cWIN32OLE_TYPE, "ole_classes", foletype_s_ole_classes, 1);
diff --git a/ext/win32ole/win32ole_variable.c b/ext/win32ole/win32ole_variable.c
index 85f3341f98..fb67fdd0fc 100644
--- a/ext/win32ole/win32ole_variable.c
+++ b/ext/win32ole/win32ole_variable.c
@@ -351,7 +351,7 @@ folevariable_inspect(VALUE self)
     return make_inspect("WIN32OLE_VARIABLE", detail);
 }
 
-void Init_win32ole_variable()
+void Init_win32ole_variable(void)
 {
     cWIN32OLE_VARIABLE = rb_define_class("WIN32OLE_VARIABLE", rb_cObject);
     rb_define_method(cWIN32OLE_VARIABLE, "name", folevariable_name, 0);