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From: Paul Eggert <eggert@cs.ucla.edu>
To: "Elias Mårtenson" <lokedhs@gmail.com>
Cc: emacs-devel <emacs-devel@gnu.org>
Subject: Re: libpng issues
Date: Sun, 11 Feb 2018 23:49:05 -0800	[thread overview]
Message-ID: <a673ddb7-2762-f242-a892-acff6495fd97@cs.ucla.edu> (raw)
In-Reply-To: <CADtN0WKY70TsUw7rmnocp2=nCc+0pX3n-OUFsVYVVvdoBfL5Fg@mail.gmail.com>

Elias Mårtenson wrote:
>    CCLD     temacs
> /bin/ld: image.o: undefined reference to symbol 'png_longjmp@@PNG16_0'
> /usr/lib/libpng16.so.16: error adding symbols: DSO missing from command line

Thanks for the heads-up. What is the last command to fail when you run 'make V=1'?

Also, in src/Makefile, what are the values of PNG_CFLAGS, and of LIBIMAGE?

Also, what is the output of the following shell commands? (The session below 
shows the output on Fedora 27.) Is the output correct for Arch Linux?

$ pkg-config --cflags libpng
-I/usr/include/libpng16
$ pkg-config --libs libpng
-lpng16 -lz
$ libpng-config --cflags
-I/usr/include/libpng16
$ libpng-config --ldflags
-L/usr/lib64 -lpng16



  reply	other threads:[~2018-02-12  7:49 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-10 19:46 libpng issues Werner LEMBERG
2018-02-12  2:45 ` Paul Eggert
2018-02-12  4:32   ` Elias Mårtenson
2018-02-12  7:49     ` Paul Eggert [this message]
2018-02-12  8:01       ` Elias Mårtenson
2018-02-12 15:28         ` Paul Eggert
2018-02-12 20:01           ` Werner LEMBERG
2018-02-12 11:37     ` jpff

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