From 3fef857a570d1ef2c96401358fe8e239625b48c9 Mon Sep 17 00:00:00 2001
From: Peter Seiderer <ps.report@gmx.net>
Date: Fri, 10 Apr 2020 18:11:50 +0200
Subject: [PATCH] contrib/zip: fix ssize_t typedef mismatch for musl compile

Musl uses defines __DEFINED_ssize_t to indicate ssize_t
availability. So backport this part of upstream commit [1]
to fixl musl compile.

https://github.com/assimp/assimp/commit/f78446b14aff46db2ef27d062a275b6a01fd68b1

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
---
 contrib/zip/src/zip.h | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/contrib/zip/src/zip.h b/contrib/zip/src/zip.h
index 5f39df50..4672eb3e 100644
--- a/contrib/zip/src/zip.h
+++ b/contrib/zip/src/zip.h
@@ -20,8 +20,9 @@ extern "C" {
 #endif
 
 #if !defined(_SSIZE_T_DEFINED) && !defined(_SSIZE_T_DEFINED_) &&               \
-    !defined(_SSIZE_T) && !defined(_SSIZE_T_) && !defined(__ssize_t_defined)
-#define _SSIZE_T
+    !defined(__DEFINED_ssize_t) && !defined(__ssize_t_defined) &&              \
+    !defined(_SSIZE_T) && !defined(_SSIZE_T_)
+
 // 64-bit Windows is the only mainstream platform
 // where sizeof(long) != sizeof(void*)
 #ifdef _WIN64
@@ -29,6 +30,14 @@ typedef long long  ssize_t;  /* byte count or error */
 #else
 typedef long  ssize_t;  /* byte count or error */
 #endif
+
+#define _SSIZE_T_DEFINED
+#define _SSIZE_T_DEFINED_
+#define __DEFINED_ssize_t
+#define __ssize_t_defined
+#define _SSIZE_T
+#define _SSIZE_T_
+
 #endif
 
 #ifndef MAX_PATH
-- 
2.26.0