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Re: [bug #39560] directory search order for link libraries
From: |
Tobias Preclik |
Subject: |
Re: [bug #39560] directory search order for link libraries |
Date: |
Thu, 12 Sep 2013 10:25:33 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130801 Thunderbird/17.0.8 |
Hello make developers,
can anyone please comment whether this is considered a bug or not? Did
the problem become clear?
Best regards,
Tobias
On 07/24/2013 11:22 AM, Tobias Preclik wrote:
> URL:
> <http://savannah.gnu.org/bugs/?39560>
>
> Summary: directory search order for link libraries
> Project: make
> Submitted by: macin
> Submitted on: Wed 24 Jul 2013 09:22:07 AM GMT
> Severity: 3 - Normal
> Item Group: Bug
> Status: None
> Privacy: Public
> Assigned to: None
> Open/Closed: Open
> Discussion Lock: Any
> Component Version: 3.82
> Operating System: None
> Fixed Release: None
> Triage Status: None
>
> _______________________________________________________
>
> Details:
>
> Consider the following Makefile:
>
> # --- >8 ---
>
> vpath lib%.a /tmp/boosttmp/
> vpath lib%.so /tmp/boosttmp/
>
> a: -lm -lboost_system
> @echo target a: $^
>
> b: -lboost_system -lm
> @echo target b: $^
>
> # --- >8 ---
>
> Note that /tmp/boosttmp/ as well as some system library path must contain
> libboost_system.so to reproduce the bug. From my understanding make will
> search the vpath first and then the system directories. Now consider the
> following executions of make:
>
> $ make a
> target a: /usr/lib64/libm.so /usr/lib64/libboost_system.so
> $ make b
> target b: /tmp/boosttmp/libboost_system.a /usr/lib64/libm.so
> $ make a b
> target a: /usr/lib64/libm.so /usr/lib64/libboost_system.so
> target b: /usr/lib64/libboost_system.so /usr/lib64/libm.so
> $ make b a
> target b: /tmp/boosttmp/libboost_system.a /usr/lib64/libm.so
> target a: /usr/lib64/libm.so /tmp/boosttmp/libboost_system.a
>
> "make a" and "make a b" find the libboost_system libray in the system
> directories but "make b" and "make b a" in the vpath directory. Note also that
> the expansion of target a and b is inconsistent in the different executions.
>
>
>
>
>
> _______________________________________________________
>
> Reply to this item at:
>
> <http://savannah.gnu.org/bugs/?39560>
>
> _______________________________________________
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>
- Re: [bug #39560] directory search order for link libraries,
Tobias Preclik <=