SDL_image: Fixed load_pnm statement in configure

From b02ecb7b0f65557cedefb851ba87b344415ca037 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Mon, 6 Jun 2022 20:01:11 -0700
Subject: [PATCH] Fixed load_pnm statement in configure

---
 configure    | 2 +-
 configure.ac | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 5fde8259..9889e4a6 100755
--- a/configure
+++ b/configure
@@ -14746,7 +14746,7 @@ fi
 LOAD_PCX=$load_pcx
 
 
-load_pnm = 0
+load_pnm=0
 if test x$enable_pnm = xyes; then
     $as_echo "#define LOAD_PNM 1" >>confdefs.h
 
diff --git a/configure.ac b/configure.ac
index 1e6af992..34066d73 100644
--- a/configure.ac
+++ b/configure.ac
@@ -602,7 +602,7 @@ if test x$enable_pcx = xyes; then
 fi
 AC_SUBST([LOAD_PCX], $load_pcx)
 
-load_pnm = 0
+load_pnm=0
 if test x$enable_pnm = xyes; then
     AC_DEFINE([LOAD_PNM])
     load_pnm=1