--- a/pngpriv.h	2025-04-20 19:36:04.000000000 
+++ b/pngpriv.h	2025-04-20 19:35:55.000000000 
@@ -511,24 +511,14 @@
     *  DBL_DIG  Maximum number of decimal digits (can be set to any constant)
     *  DBL_MIN  Smallest normalized fp number (can be set to an arbitrary value)
     *  DBL_MAX  Maximum floating point number (can be set to an arbitrary value)
     */
 #  include <float.h>
 
-#  if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
-    defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
-   /* We need to check that <math.h> hasn't already been included earlier
-    * as it seems it doesn't agree with <fp.h>, yet we should really use
-    * <fp.h> if possible.
-    */
-#    if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
-#      include <fp.h>
-#    endif
-#  else
-#    include <math.h>
-#  endif
+#  include <math.h>
+
 #  if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
    /* Amiga SAS/C: We must include builtin FPU functions when compiling using
     * MATH=68881
     */
 #    include <m68881.h>
 #  endif