[vala/0.52] codegen: Avoid symbol clashes with "va_*" from "stdarg.h"

[Rico Tzschichholz <ricotz src gnome org>]

commit 2dd91bcf220ca3286f5836e78036c527262edbbf
Author: Alvarito050506 <donfrutosgomez gmail com>
Date:   Mon Jan 17 16:00:16 2022 -0300

    codegen: Avoid symbol clashes with "va_*" from "stdarg.h"
    
    A few more symbol clashes with the va_* macros from stdarg.h, that seem to
    happen only in some systems, like Alpine Linux or NetBSD.

 codegen/valaccodemethodcallmodule.vala | 16 ++++++++--------
 codegen/valaccodemethodmodule.vala     |  8 ++++----
 2 files changed, 12 insertions(+), 12 deletions(-)
---
diff --git a/codegen/valaccodemethodcallmodule.vala b/codegen/valaccodemethodcallmodule.vala
index bfa75cde9..8fa45ed37 100644
--- a/codegen/valaccodemethodcallmodule.vala
+++ b/codegen/valaccodemethodcallmodule.vala
@@ -1104,11 +1104,11 @@ public class Vala.CCodeMethodCallModule : CCodeAssignmentModule {
                ccode.add_declaration ("va_list", new CCodeVariableDeclarator ("ap"));
                ccode.add_declaration ("char*", new CCodeVariableDeclarator ("result"));
 
-               var va_start = new CCodeFunctionCall (new CCodeIdentifier ("va_start"));
-               va_start.add_argument (new CCodeIdentifier ("ap"));
-               va_start.add_argument (new CCodeIdentifier ("format"));
+               var vastart = new CCodeFunctionCall (new CCodeIdentifier ("va_start"));
+               vastart.add_argument (new CCodeIdentifier ("ap"));
+               vastart.add_argument (new CCodeIdentifier ("format"));
 
-               ccode.add_expression (va_start);
+               ccode.add_expression (vastart);
 
                if (context.profile == Profile.POSIX) {
                        cfile.add_include ("stdio.h");
@@ -1132,11 +1132,11 @@ public class Vala.CCodeMethodCallModule : CCodeAssignmentModule {
 
                ccode.add_assignment (new CCodeIdentifier ("result"), malloc);
 
-               va_start = new CCodeFunctionCall (new CCodeIdentifier ("va_start"));
-               va_start.add_argument (new CCodeIdentifier ("ap"));
-               va_start.add_argument (new CCodeIdentifier ("format"));
+               vastart = new CCodeFunctionCall (new CCodeIdentifier ("va_start"));
+               vastart.add_argument (new CCodeIdentifier ("ap"));
+               vastart.add_argument (new CCodeIdentifier ("format"));
 
-               ccode.add_expression (va_start);
+               ccode.add_expression (vastart);
 
                vsnprintf = new CCodeFunctionCall (new CCodeIdentifier ("vsnprintf"));
                vsnprintf.add_argument (new CCodeIdentifier ("result"));
diff --git a/codegen/valaccodemethodmodule.vala b/codegen/valaccodemethodmodule.vala
index 0b1d69c02..1fc84b2db 100644
--- a/codegen/valaccodemethodmodule.vala
+++ b/codegen/valaccodemethodmodule.vala
@@ -1321,12 +1321,12 @@ public abstract class Vala.CCodeMethodModule : CCodeStructModule {
                                vcall.add_argument (carg);
                        }
 
-                       var va_start = new CCodeFunctionCall (new CCodeIdentifier ("va_start"));
-                       va_start.add_argument (new CCodeIdentifier ("_vala_va_list_obj"));
-                       va_start.add_argument (carg);
+                       var vastart = new CCodeFunctionCall (new CCodeIdentifier ("va_start"));
+                       vastart.add_argument (new CCodeIdentifier ("_vala_va_list_obj"));
+                       vastart.add_argument (carg);
 
                        ccode.add_declaration ("va_list", new CCodeVariableDeclarator ("_vala_va_list_obj"));
-                       ccode.add_expression (va_start);
+                       ccode.add_expression (vastart);
 
                        vcall.add_argument (new CCodeIdentifier("_vala_va_list_obj"));
                }