From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <jwakely.gcc@gmail.com>
Received: from mail-wm1-x336.google.com (mail-wm1-x336.google.com
 [IPv6:2a00:1450:4864:20::336])
 by sourceware.org (Postfix) with ESMTPS id 32789389803E
 for <gcc-help@gcc.gnu.org>; Fri, 13 Nov 2020 19:08:57 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 32789389803E
Received: by mail-wm1-x336.google.com with SMTP id c16so10164243wmd.2
 for <gcc-help@gcc.gnu.org>; Fri, 13 Nov 2020 11:08:57 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:mime-version:references:in-reply-to:from:date
 :message-id:subject:to:cc;
 bh=VXZLfryY920k2SKLcNJcMALodciZn8mL6F67cIyQfOo=;
 b=eEg8Ue0xepkNXqf0PNZy2+ejJ5djLu3sTtnSoTKXA5PdxlOXC1tPDlgelrAqAlcl/N
 kqyA9AMP9Y/J5Q3B88eQqyomaNinctG+tyAqQ8qQPJg/FNCzm7CSyieFCSyhrzSvkGjs
 vYFf89H7+bNPUJqtRvt++ORN/Nmy80l60odbhIeFm7yGfzIhr6dD+72hfo6Zy6dOsDdF
 mJPjAO5ZzFZs4off84+Uynozh81kiTujUPm70o9uEtiMNiFpzChd1DLJjfeC+ajowGDJ
 pUpG7FjC0lnogpfKp3QyAYLZXYF1fj8Yfi1mrSMPFmYL2KfPIzxTyaltNZ9/yvj+J5zh
 utvA==
X-Gm-Message-State: AOAM5330JhtXuqjyHwgRGttFO5wWylNI/qikgVHCnaoW21JlIpOMZnBy
 p14aVmOmVqhixR9R5rQna8HVtWYD80zRhi9oBjE=
X-Google-Smtp-Source: ABdhPJxaUpAndP6wcagBQi6uMNRGYhSfjyxuaClh8fIH4gwissSsxBO+5fKQbULVlTleCswaZGu87ZPNomwJWjb72ZU=
X-Received: by 2002:a1c:21c1:: with SMTP id h184mr4181826wmh.106.1605294536132; 
 Fri, 13 Nov 2020 11:08:56 -0800 (PST)
MIME-Version: 1.0
References: <5faeac7f.1c69fb81.b55df.57c2SMTPIN_ADDED_BROKEN@mx.google.com>
In-Reply-To: <5faeac7f.1c69fb81.b55df.57c2SMTPIN_ADDED_BROKEN@mx.google.com>
From: Jonathan Wakely <jwakely.gcc@gmail.com>
Date: Fri, 13 Nov 2020 19:08:44 +0000
Message-ID: <CAH6eHdQdEhYUDqq-4V6fDyJ-8rKG6Pon9-1541NPqsbnK-taLg@mail.gmail.com>
Subject: Re: GCC fails to find headers under Ubuntu
To: Gordon McKay <gordon_mckay@btinternet.com>
Cc: "gcc-help@gcc.gnu.org" <gcc-help@gcc.gnu.org>
Content-Type: text/plain; charset="UTF-8"
X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,
 SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on
 server2.sourceware.org
X-BeenThere: gcc-help@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-help mailing list <gcc-help.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-help>,
 <mailto:gcc-help-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-help/>
List-Post: <mailto:gcc-help@gcc.gnu.org>
List-Help: <mailto:gcc-help-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-help>,
 <mailto:gcc-help-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Fri, 13 Nov 2020 19:08:58 -0000

On Fri, 13 Nov 2020 at 15:55, Gordon McKay via Gcc-help
<gcc-help@gcc.gnu.org> wrote:
>
> Hi,
>
> I have a C project, star-charter, which is a straight clone from GitHub.
>
> From my $Home in Ubuntu I have a folder, Cprojects, where I keep all my C/C++ projects, each in a separate sub-folder.
>
> My start-charter GitHub clone is in the star-charter subfolder
>
> The makefile is in the star-charter subfolder
>
> All of the source is in the src sub folder of star-charter
>
> Main.c is in the src sub-folder.
>
> Various libraries and headers are in sub-folders of src, for eample the gsl headers
>
> When I attempt to compile main.c which refere to the gsl headers in INCLUDE statements with the sub-folder gsl and header name , a file not found error is thrown.

What is the exact command you are running, and the exact error?

We can't help without accurate information about exactly what you're
doing and what the error is.