windows – 为什么Win32 :: ODBC在Perl 5.10和Cygwin下找不到ODBC.dll？

2023年8月27日 263次阅读

我正在尝试使用Perl ODBC连接到Microsoft SQL服务器.我的问题是Perl 5.10.0使用Win32 ODBC驱动程序时遇到问题.

如果我运行Perl shell并执行这一行,我会收到错误.

use Win32::ODBC;

Can't load '/usr/lib/perl5/vendor_perl/5.10/i686-cygwin/auto/Win32/ODBC/ODBC.dll'
for module Win32::ODBC: No such file or directory at
/usr/lib/perl5/5.10/i686-cygwin/DynaLoader.pm line 201.

我已经验证了dll文件确实存在.

我已经安装了Cygwin包：

> perl(5.10.0-5)
> perl-libwin32(0.28-2)

最佳答案 这似乎是
known issue.抓住
libiodbc source,应用以下补丁,构建和安装：

diff -ub  libiodbc-3.52.6/include/iodbcunix.h.orig
--- libiodbc-3.52.6/include/iodbcunix.h.orig        2006-01-26 09:50:59.000000000 +0000
+++ libiodbc-3.52.6/include/iodbcunix.h     2007-12-24 19:33:57.859375000 +0000
@@ -124,6 +124,7 @@
 #if defined (OBSOLETE_WINDOWS_TYPES)
 typedef unsigned char              BYTE;
 #endif
+#ifndef WIN32
 typedef unsigned short             WORD;
 typedef unsigned int               DWORD;
 typedef char *                     LPSTR;
@@ -131,6 +132,7 @@         
 typedef wchar_t *          LPWSTR; 
 typedef const wchar_t *            LPCWSTR;
 typedef DWORD *                    LPDWORD;
+#endif

 #if !defined(BOOL) && !defined(_OBJC_OBJC_H_)
 typedef int                        BOOL;

更新：Cygwin人员have a TODO for this issue,但现在已经有几个月了.如果等待的时间太长,你可以在此期间伪造它：

#! /bin/bash

# run from the libiodbc build directory

gcc -shared -o cygiodbc-2.dll \
    -Wl,--out-implib=libcygiodbc-2.dll.a \
    -Wl,--export-all-symbols \
    -Wl,--enable-auto-import \
    -Wl,--whole-archive iodbc/.libs/libiodbc.a \
    -Wl,--no-whole-archive

gcc -shared -o cygiodbcinst-2.dll \
    -Wl,--out-implib=libcygiodbcinst-2.dll.a \
    -Wl,--export-all-symbols \
    -Wl,--enable-auto-import \
    -Wl,--whole-archive iodbcinst/.libs/libiodbcinst.a \
    -Wl,--no-whole-archive

cp cygiodbc{,inst}-2.dll /bin
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