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[bug #38437] cannot find the include file

From: Jian
Subject: [bug #38437] cannot find the include file
Date: Thu, 28 Feb 2013 08:35:30 +0000
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.22 (KHTML, like Gecko) Chrome/25.0.1364.97 Safari/537.22

Follow-up Comment #2, bug #38437 (project make):

(just paste the mail with solution here for your reference)

Thanks Philip. It works for me, and now I can distribute my makefiles into
different path.

However, I still hope it can be improved as the expreience of C/C++ tells us
it shall be able to. When reading a makefile, the path of this file should be
added into the search path automaticallly.

2013/2/28 Philip Guenther <address@hidden>
On Wed, Feb 27, 2013 at 8:55 PM, Jian <address@hidden> wrote:
> Supposing 2 makefiles in dir A: 1.mak, 2.mak, and 1.mak include 2.mak.
> Now in dir B, 3.mak includes 'A/1.mak' (will auto include 2.mak). But error
> shows that 2.mak cannot be found.
> The make option "-I" can be the workaround like:
>  cd B
>  make -f 3.mak -IA
> But it's not acceptable to tell user to uses "-I" to make every time. make
> shall be able to find 2.mak.

So have 1.mak look for 2.mak in the same directory, by doing something like:

# Get the directory part of the path by which 1.mak was included
# This should be before any other includes in 1.mak
dir_of_1 = $(dir $(lastword $(MAKEFILE_LIST)))

...and then later:

# pull in 2.mak in the same directory as this file
include ${dir_of_1}2.mak


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