-fdump-ada-spec：“文件”未声明 [英] -fdump-ada-spec: "FILE" not declared

问题描述

交叉发布，对comp.lang.ada没有答案。

Cross-posting, no answer on comp.lang.ada.

我正在尝试为GSL（Gnu科学图书馆）odeiv2软件包生成Ada绑定（普通微分方程）。因此，我执行以下2个步骤：

I am trying to generate Ada bindings for the GSL (Gnu Scientific Library) odeiv2 package (ordinary differential equations). So I do the following 2 steps:

1. 转到空目录 src并执行

1. Go to an empty directory "src" and execute

g ++ -c -fdump-ada-spec -C /usr/include/gsl/gsl_odeiv2.h

g++ -c -fdump-ada-spec -C /usr/include/gsl/gsl_odeiv2.h

转到空目录 obj并执行

Go to an empty directory "obj" and execute

gcc -c -gnat05 ../ src / *。ads

gcc -c -gnat05 ../src/*.ads

不幸的是，gsl_odeiv2.h包含stdio.h，这会导致一系列错误，例如

Unfortunately, gsl_odeiv2.h includes stdio.h, and this leads to a series of errors like

stdio_h.ads:117:69: "FILE" not declared in "x86_64_linux_gnu_bits_types_FILE_h"

奇怪的是，声明了文件 ，我在stdio.h中包含的/usr/include/x86_64-linux-gnu/bits/types/FILE.h中找到了它。

Strangely, FILE is declared, I found it in /usr/include/x86_64-linux-gnu/bits/types/FILE.h, which is included in stdio.h.

我想我的odeiv2应用程序甚至不需要FILE。那么有没有人暗示如何摆脱这个错误？

I guess that I don't even need FILE for my odeiv2 application. So has anyone a hint how to get rid of this error?

推荐答案

问题再次在其他C文件中出现，但是这次我在网上找到了解决方案。从Interfaces.C_Streams：

The problem appeared again with other C files, but this time I found the solution on the web. From Interfaces.C_Streams:

  subtype FILEs is System.Address;
  -- Corresponds to the C type FILE*

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