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我有来自 的来源Adacore，所以它应该可以工作 - 我也在 Adacore 上留下了一个“问题”，但可能需要一些时间才能在那里得到解决。我怀疑我可能做错了什么，有什么建议吗？

这是问题所在：

$ gnat make gnatcoll-json.adb

    gcc -c gnatcoll-json.adb

    gnatcoll-json.adb:33:23: missing body for "Prepend" declared at gnatcoll-json.ads:64

    gnatcoll-json.adb:33:23: missing body for "Create" declared at gnatcoll-json.ads:99

    gnatcoll-json.adb:33:23: missing body for "Set_Field" declared at gnatcoll-json.ads:144

    gnatcoll-json.adb:33:23: missing body for "Get" declared at gnatcoll-json.ads:173

    gnatcoll-json.adb:33:23: missing body for "Get" declared at gnatcoll-json.ads:206

    gnatcoll-json.adb:454:63: prefix of dereference must be an access type

    gnatcoll-json.adb:641:33: invalid operand types for operator "/="    gnatcoll-json.adb:641:33: left operand has private type "UTF8_Unbounded_String" defined at gnatcoll-json.ads:47

    gnatcoll-json.adb:641:33: right operand has an access type

    gnatcoll-json.adb:642:19: no candidate interpretations match the actuals:

    gnatcoll-json.adb:642:28: expected type "Counter" defined at gnatcoll-json.ads:239

    gnatcoll-json.adb:642:28: found private type "Ada.Strings.Unbounded.Unbounded_String"

    gnatcoll-json.adb:642:28:   ==> in call to "Free" at gnatcoll-json.ads:289

    gnatcoll-json.adb:642:28:   ==> in call to "Free" at gnatcoll-json.ads:287

    gnatcoll-json.adb:642:28:   ==> in call to "Free" at gnatcoll-json.ads:285

    gnatcoll-json.adb:642:28:   ==> in call to "Free" at a-strunb.ads:88

    gnatcoll-json.adb:714:24: expected private type "Ada.Strings.Unbounded.Unbounded_String"

    gnatcoll-json.adb:714:24: found type access to "UTF8_String" defined at line 714

    gnatcoll-json.adb:841:28: prefix of dereference must be an access type

    gnatmake: "gnatcoll-json.adb" compilation error

我可以看到文件中那些丢失的正文gnatcoll.ads似乎是第一个问题。确实，例如Prepend的主体不在该文件中 - 但我认为主体应该在gnatcoll.adb文件中，而不是gnatcoll.ads文件中。

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1 回答 1

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GNATColl旨在使用相当标准的configure//流程构建make。make install您可以通过查看docs/building.rst分布来了解更多信息；我没有用于构建可安装版本的Sphinx程序，但它的原样可读性很强。还docs/json.rst告诉您如何在GNATColl安装后使用 JSON 支持。

在发行版的根目录中，

$ ./configure --prefix=/your/preferred/install/location # default is /usr/local
$ make
$ sudo make install # if /your/preferred/install/location isn't user-writable
于 2013-06-05T16:32:52.750 回答