prevent errors related to fdopen if gcc/binutils try to use their built-in zlib on macos

Author: autc04

binutils/zlib/zutil.h

@@ -139,15 +139,6 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
 
 #if defined(MACOS) || defined(TARGET_OS_MAC)
 #  define OS_CODE  7
-#  ifndef Z_SOLO
-#    if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
-#      include <unix.h> /* for fdopen */
-#    else
-#      ifndef fdopen
-#        define fdopen(fd,mode) NULL /* No fdopen() */
-#      endif
-#    endif
-#  endif
 #endif
 
 #ifdef __acorn

gcc/zlib/zutil.h

@@ -132,15 +132,6 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
 
 #if defined(MACOS) || defined(TARGET_OS_MAC)
 #  define OS_CODE  7
-#  ifndef Z_SOLO
-#    if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
-#      include <unix.h> /* for fdopen */
-#    else
-#      ifndef fdopen
-#        define fdopen(fd,mode) NULL /* No fdopen() */
-#      endif
-#    endif
-#  endif
 #endif
 
 #ifdef __acorn