Backport of https://github.com/php/php-src/commit/b3646440b1808abf0874b6f89027ce53ec5da03f

Affects libgd <= 2.3.3

See also https://github.com/libgd/libgd/commit/f4bc1f5c26925548662946ed7cfa473c190a104a

--- php-7.4.29/ext/gd/gd.c	2022-04-12 10:55:40.000000000 +0000
+++ php-7.4.29/ext/gd/gd.c	2022-05-27 16:40:42.048499508 +0000
@@ -90,6 +90,10 @@ static int le_gd, le_gd_font;
 #ifndef M_PI
 #define M_PI 3.14159265358979323846
 #endif
+/* don't used libgd constants, not used, so going to be removed */
+#define PHP_GD_FLIP_HORIZONTAL 1
+#define PHP_GD_FLIP_VERTICAL   2
+#define PHP_GD_FLIP_BOTH       3
 
 #ifdef HAVE_GD_FREETYPE
 static void php_imagettftext_common(INTERNAL_FUNCTION_PARAMETERS, int, int);
@@ -1137,9 +1141,9 @@ PHP_MINIT_FUNCTION(gd)
     /* GD2 image format types */
 	REGISTER_LONG_CONSTANT("IMG_GD2_RAW", GD2_FMT_RAW, CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("IMG_GD2_COMPRESSED", GD2_FMT_COMPRESSED, CONST_CS | CONST_PERSISTENT);
-	REGISTER_LONG_CONSTANT("IMG_FLIP_HORIZONTAL", GD_FLIP_HORINZONTAL, CONST_CS | CONST_PERSISTENT);
-	REGISTER_LONG_CONSTANT("IMG_FLIP_VERTICAL", GD_FLIP_VERTICAL, CONST_CS | CONST_PERSISTENT);
-	REGISTER_LONG_CONSTANT("IMG_FLIP_BOTH", GD_FLIP_BOTH, CONST_CS | CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("IMG_FLIP_HORIZONTAL", PHP_GD_FLIP_HORIZONTAL, CONST_CS | CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("IMG_FLIP_VERTICAL", PHP_GD_FLIP_VERTICAL, CONST_CS | CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("IMG_FLIP_BOTH", PHP_GD_FLIP_BOTH, CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("IMG_EFFECT_REPLACE", gdEffectReplace, CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("IMG_EFFECT_ALPHABLEND", gdEffectAlphaBlend, CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("IMG_EFFECT_NORMAL", gdEffectNormal, CONST_CS | CONST_PERSISTENT);
@@ -4696,15 +4700,15 @@ PHP_FUNCTION(imageflip)
 	}
 
 	switch (mode) {
-		case GD_FLIP_VERTICAL:
+		case PHP_GD_FLIP_VERTICAL:
 			gdImageFlipVertical(im);
 			break;
 
-		case GD_FLIP_HORINZONTAL:
+		case PHP_GD_FLIP_HORIZONTAL:
 			gdImageFlipHorizontal(im);
 			break;
 
-		case GD_FLIP_BOTH:
+		case PHP_GD_FLIP_BOTH:
 			gdImageFlipBoth(im);
 			break;