編譯OpenJDK8：configure: Could not compile and link with freetype. This might be a 32/64-bit mismatch.

　　具體錯誤：

checking if we can compile and link with freetype... no
configure: Could not compile and link with freetype. This might be a 32/64-bit mismatch.      

　　之前遇到同類問題：

https://blog.csdn.net/weixin_45021036/article/details/102691495

　　檢查了一下，确認庫是６４位的，怎麼又出現了？于是檢查了報錯位置：

# Try to compile it
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can compile and link with freetype" >&5
$as_echo_n "checking if we can compile and link with freetype... " >&6; }
 
          #include<ft2build.h>
          #include FT_FREETYPE_H
          int main () {
            FT_Init_FreeType(NULL);
            return 0;
          }
 
          { $as_echo "$as_me:${as_lineno-$LINENO}: Could not compile and link with freetype. This might be a 32/64-bit mismatch." >&5
$as_echo "$as_me: Could not compile and link with freetype. This might be a 32/64-bit mismatch." >&6;}      

　　這裡意思是檢查一下庫是否正常。庫肯定正常，那就是頭檔案有問題？這個頭檔案為了在ＭＡＣ上編譯，加了幾個包含。于是進行了反複測試，原來是包含的unistd.h導緻。

1.      

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
 
#include <math.h>
/* #include <unistd.h> */
 
#include <freetype/config/ftheader.h>