SDL: Test: Use SDLCALL in typedefs instead of ifdefs.

SDL Commits
1 
From 0dbdf90e7b8cd33b3f362eacfb8b49098a67125c Mon Sep 17 00:00:00 2001
From: Pierre Wendling <[EMAIL REDACTED]>
Date: Wed, 11 May 2022 12:54:16 -0400
Subject: [PATCH] Test: Use SDLCALL in typedefs instead of ifdefs.

Thanks to @sezero for the tip.
---
 test/testautomation_math.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/test/testautomation_math.c b/test/testautomation_math.c
index 595ed673860..44d21ce434d 100644
--- a/test/testautomation_math.c
+++ b/test/testautomation_math.c
@@ -35,14 +35,8 @@ typedef struct
 
 /* ================= Test Helpers ================== */
 
-/* OS/2 uses different function signatures for the helpers */
-#ifdef __OS2__
-typedef double(_Syscall *d_to_d_func)(double);
-typedef double(_Syscall *dd_to_d_func)(double, double);
-#else
-typedef double (*d_to_d_func)(double);
-typedef double (*dd_to_d_func)(double, double);
-#endif
+typedef double(SDLCALL *d_to_d_func)(double);
+typedef double(SDLCALL *dd_to_d_func)(double, double);
 
 /**
  * \brief Runs all the cases on a given function with a signature double -> double