diff --git a/CMakeLists.txt b/CMakeLists.txt
index 75b160c6f..88f69174a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -258,7 +258,7 @@ IF( UNIX )
 ENDIF()
 
 # Grouped compiler settings ########################################
-IF ((CMAKE_C_COMPILER_ID MATCHES "GNU") AND NOT MINGW)
+IF ((CMAKE_C_COMPILER_ID MATCHES "GNU") AND NOT MINGW AND NOT HAIKU)
   IF(NOT ASSIMP_HUNTER_ENABLED)
     SET(CMAKE_POSITION_INDEPENDENT_CODE ON)
   ENDIF()
diff --git a/contrib/unzip/ioapi.h b/contrib/unzip/ioapi.h
index ae9ca7e83..548dafb5e 100644
--- a/contrib/unzip/ioapi.h
+++ b/contrib/unzip/ioapi.h
@@ -50,7 +50,7 @@
 #define ftello64 ftell
 #define fseeko64 fseek
 #else
-#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__HAIKU__)
 #define fopen64 fopen
 #define ftello64 ftello
 #define fseeko64 fseeko