Silenced -Wcast-function-type warnings (closes #1546).

Cast to intermediate "void *" to lose compiler knowledge about the original
type and pass the warning.  This is not a real fix but rather a workaround.

Found by gcc8.

7 files changed, 31 insertions, 19 deletions

diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
index bc43f53ed..3eec1b7dd 100644
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -3264,7 +3264,8 @@ ngx_http_fastcgi_init_params(ngx_conf_t *cf, ngx_http_fastcgi_loc_conf_t *conf,
             return NGX_ERROR;
         }
 
-        copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
+        copy->code = (ngx_http_script_code_pt) (void *)
+                                                 ngx_http_script_copy_len_code;
         copy->len = src[i].key.len;
 
         copy = ngx_array_push_n(params->lengths,
@@ -3273,7 +3274,8 @@ ngx_http_fastcgi_init_params(ngx_conf_t *cf, ngx_http_fastcgi_loc_conf_t *conf,
             return NGX_ERROR;
         }
 
-        copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
+        copy->code = (ngx_http_script_code_pt) (void *)
+                                                 ngx_http_script_copy_len_code;
         copy->len = src[i].skip_empty;
 
 
diff --git a/src/http/modules/ngx_http_grpc_module.c b/src/http/modules/ngx_http_grpc_module.c
index 758f89eb2..808198bfd 100644
--- a/src/http/modules/ngx_http_grpc_module.c
+++ b/src/http/modules/ngx_http_grpc_module.c
@@ -4404,7 +4404,8 @@ ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf,
             return NGX_ERROR;
         }
 
-        copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
+        copy->code = (ngx_http_script_code_pt) (void *)
+                                                 ngx_http_script_copy_len_code;
         copy->len = src[i].key.len;
 
         size = (sizeof(ngx_http_script_copy_code_t)
diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index c9ad638df..e7f829d65 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -3493,7 +3493,8 @@ ngx_http_proxy_init_headers(ngx_conf_t *cf, ngx_http_proxy_loc_conf_t *conf,
             return NGX_ERROR;
         }
 
-        copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
+        copy->code = (ngx_http_script_code_pt) (void *)
+                                                 ngx_http_script_copy_len_code;
         copy->len = src[i].key.len;
 
         size = (sizeof(ngx_http_script_copy_code_t)
diff --git a/src/http/modules/ngx_http_scgi_module.c b/src/http/modules/ngx_http_scgi_module.c
index 3fb227b28..9bd45bd13 100644
--- a/src/http/modules/ngx_http_scgi_module.c
+++ b/src/http/modules/ngx_http_scgi_module.c
@@ -1724,7 +1724,8 @@ ngx_http_scgi_init_params(ngx_conf_t *cf, ngx_http_scgi_loc_conf_t *conf,
             return NGX_ERROR;
         }
 
-        copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
+        copy->code = (ngx_http_script_code_pt) (void *)
+                                                 ngx_http_script_copy_len_code;
         copy->len = src[i].key.len + 1;
 
         copy = ngx_array_push_n(params->lengths,
@@ -1733,7 +1734,8 @@ ngx_http_scgi_init_params(ngx_conf_t *cf, ngx_http_scgi_loc_conf_t *conf,
             return NGX_ERROR;
         }
 
-        copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
+        copy->code = (ngx_http_script_code_pt) (void *)
+                                                 ngx_http_script_copy_len_code;
         copy->len = src[i].skip_empty;
 
 
diff --git a/src/http/modules/ngx_http_uwsgi_module.c b/src/http/modules/ngx_http_uwsgi_module.c
index 124da4db5..238bcf8a3 100644
--- a/src/http/modules/ngx_http_uwsgi_module.c
+++ b/src/http/modules/ngx_http_uwsgi_module.c
@@ -1987,7 +1987,8 @@ ngx_http_uwsgi_init_params(ngx_conf_t *cf, ngx_http_uwsgi_loc_conf_t *conf,
             return NGX_ERROR;
         }
 
-        copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
+        copy->code = (ngx_http_script_code_pt) (void *)
+                                                 ngx_http_script_copy_len_code;
         copy->len = src[i].key.len;
 
         copy = ngx_array_push_n(params->lengths,
@@ -1996,7 +1997,8 @@ ngx_http_uwsgi_init_params(ngx_conf_t *cf, ngx_http_uwsgi_loc_conf_t *conf,
             return NGX_ERROR;
         }
 
-        copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
+        copy->code = (ngx_http_script_code_pt) (void *)
+                                                 ngx_http_script_copy_len_code;
         copy->len = src[i].skip_empty;
 
 
diff --git a/src/http/ngx_http_script.c b/src/http/ngx_http_script.c
index 96f3ec696..1a8773561 100644
--- a/src/http/ngx_http_script.c
+++ b/src/http/ngx_http_script.c
@@ -695,7 +695,8 @@ ngx_http_script_add_copy_code(ngx_http_script_compile_t *sc, ngx_str_t *value,
         return NGX_ERROR;
     }
 
-    code->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
+    code->code = (ngx_http_script_code_pt) (void *)
+                                                 ngx_http_script_copy_len_code;
     code->len = len;
 
     size = (sizeof(ngx_http_script_copy_code_t) + len + sizeof(uintptr_t) - 1)
@@ -784,7 +785,8 @@ ngx_http_script_add_var_code(ngx_http_script_compile_t *sc, ngx_str_t *name)
         return NGX_ERROR;
     }
 
-    code->code = (ngx_http_script_code_pt) ngx_http_script_copy_var_len_code;
+    code->code = (ngx_http_script_code_pt) (void *)
+                                             ngx_http_script_copy_var_len_code;
     code->index = (uintptr_t) index;
 
     code = ngx_http_script_add_code(*sc->values,
@@ -1178,8 +1180,8 @@ ngx_http_script_add_capture_code(ngx_http_script_compile_t *sc, ngx_uint_t n)
         return NGX_ERROR;
     }
 
-    code->code = (ngx_http_script_code_pt)
-                      ngx_http_script_copy_capture_len_code;
+    code->code = (ngx_http_script_code_pt) (void *)
+                                         ngx_http_script_copy_capture_len_code;
     code->n = 2 * n;
 
 
@@ -1293,7 +1295,8 @@ ngx_http_script_add_full_name_code(ngx_http_script_compile_t *sc)
         return NGX_ERROR;
     }
 
-    code->code = (ngx_http_script_code_pt) ngx_http_script_full_name_len_code;
+    code->code = (ngx_http_script_code_pt) (void *)
+                                            ngx_http_script_full_name_len_code;
     code->conf_prefix = sc->conf_prefix;
 
     code = ngx_http_script_add_code(*sc->values,
diff --git a/src/stream/ngx_stream_script.c b/src/stream/ngx_stream_script.c
index aa555ca2c..b00e7086f 100644
--- a/src/stream/ngx_stream_script.c
+++ b/src/stream/ngx_stream_script.c
@@ -587,7 +587,8 @@ ngx_stream_script_add_copy_code(ngx_stream_script_compile_t *sc,
         return NGX_ERROR;
     }
 
-    code->code = (ngx_stream_script_code_pt) ngx_stream_script_copy_len_code;
+    code->code = (ngx_stream_script_code_pt) (void *)
+                                               ngx_stream_script_copy_len_code;
     code->len = len;
 
     size = (sizeof(ngx_stream_script_copy_code_t) + len + sizeof(uintptr_t) - 1)
@@ -677,8 +678,8 @@ ngx_stream_script_add_var_code(ngx_stream_script_compile_t *sc, ngx_str_t *name)
         return NGX_ERROR;
     }
 
-    code->code = (ngx_stream_script_code_pt)
-                      ngx_stream_script_copy_var_len_code;
+    code->code = (ngx_stream_script_code_pt) (void *)
+                                           ngx_stream_script_copy_var_len_code;
     code->index = (uintptr_t) index;
 
     code = ngx_stream_script_add_code(*sc->values,
@@ -767,8 +768,8 @@ ngx_stream_script_add_capture_code(ngx_stream_script_compile_t *sc,
         return NGX_ERROR;
     }
 
-    code->code = (ngx_stream_script_code_pt)
-                      ngx_stream_script_copy_capture_len_code;
+    code->code = (ngx_stream_script_code_pt) (void *)
+                                       ngx_stream_script_copy_capture_len_code;
     code->n = 2 * n;
 
 
@@ -859,7 +860,7 @@ ngx_stream_script_add_full_name_code(ngx_stream_script_compile_t *sc)
         return NGX_ERROR;
     }
 
-    code->code = (ngx_stream_script_code_pt)
+    code->code = (ngx_stream_script_code_pt) (void *)
                                           ngx_stream_script_full_name_len_code;
     code->conf_prefix = sc->conf_prefix;