From: "Måns Rullgård" <mans@mansr.com>
To: Jan Stary <hans@stare.cz>
Cc: sox-devel@lists.sourceforge.net
Subject: Re: Build system cleanup
Date: Thu, 27 Aug 2020 12:08:02 +0100 [thread overview]
Message-ID: <yw1x3648l52l.fsf@mansr.com> (raw)
In-Reply-To: <20200827094048.GC5768@www.stare.cz> (Jan Stary's message of "Thu, 27 Aug 2020 11:40:48 +0200")
Jan Stary <hans@stare.cz> writes:
> On Aug 24 08:56:43, hans@stare.cz wrote:
>> On Aug 23 23:55:51, hans@stare.cz wrote:
>> > > > cc [...] -o .libs/sox sox.o -L./.libs -lsox -L/usr/local/lib -lpng [...]
>> > > > cc [...] -o .libs/sox sox.o -L/usr/local/lib -L./.libs -lsox -lpng [...]
>> > > >
>> > > > The first works, the second does not.
>> > > > The only difference between the two is the place
>> > > > where the extra -L/usr/local/lib gets added,
>> > > > as described in the previous emails.
>> >
>> > And it seems libtool itself is the one who breaks it.
>> > This is the failing line again:
>> >
>> > /bin/sh ../libtool --tag=CC --mode=link cc -g -O2 -fstack-protector-strong -Wall -Wmissing-prototypes -Wstrict-prototypes -avoid-version -module -L/usr/local/lib -Wl,--as-needed -o sox sox.o libsox.la -lm
>> >
>> > Notice the "-L/usr/local/lib -Wl,--as-needed".
>> > The "-L/usr/local/lib" part comes from the configure arg:
>> >
>> > ./configure CC=cc CPPFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib
>> >
>> > The "-Wl,--as-needed" comes from
>> >
>> > $ grep as-needed configure.ac
>> > AX_APPEND_LINK_FLAGS([-Wl,--as-needed])
>> >
>> > That results in the following line in src/Makefile:
>> >
>> > LDFLAGS = -L/usr/local/lib -Wl,--as-needed
>> >
>> > and that's what is passed in the above command line. Now, libtool
>> > apparently preprocesses the line into something else; in particular,
>> > it reorders the options. The very next command is:
>> >
>> > libtool: link: cc -g -O2 -fstack-protector-strong -Wall -Wmissing-prototypes -Wstrict-prototypes -Wl,--as-needed -o .libs/sox sox.o -L/usr/local/lib -L./.libs -lsox -lpng -lltdl -lao -lgsm -lmad -lmp3lame -ltwolame -lid3tag -lz -lopusfile -lopus -lsndio -lvorbisfile -lwavpack -lcrypto -lsndfile -lFLAC -lvorbisenc -lvorbis -logg -lm -Wl,-rpath,/usr/local/lib
>> >
>> > Notice where the -L/usr/local/lib has been moved.
>> > As described previously, if it comes after -lsox
>> > instead of before it, it links just fine.
>>
>> That being said, the same problem is present in the master branch,
>> but it works in 14.4.2, where the libtool line is
>>
>> bin/sh ../libtool --silent --tag=CC --silent --mode=link cc -Wtraditional-co
>> nversion -g -O2 -fstack-protector -Wall -W -Wmissing-prototypes -Wstrict-protot
>> ypes -pedantic -avoid-version -module -L/usr/local/lib -o sox sox.o libsox.la
>> -lm
>>
>> which becomes (without 'silent')
>>
>> libtool: link: cc -Wtraditional-conversion -g -O2 -fstack-protector -Wall -W -Wmissing-prototypes -Wstrict-prototypes -pedantic -o .libs/sox sox.o -L/usr/local/lib -L./.libs -lsox -lltdl -lpng -lao -lgsm -lmad -lid3tag -lz -lmp3lame -ltwolame -lopusfile -lopus -lsndio -lvorbisfile -lwavpack -lcrypto -lsndfile -lFLAC -lvorbisenc -lvorbis -logg -lm -Wl,-rpath,/home/hans/lib -Wl,-rpath,/usr/local/lib
>
> Presumably, the problem does not occur wih a release,
> because it already comes with a ./configure script,
> so the builder does not have to run autoreconf -i,
> which is when the (broken) ./libtool gets created.
> So the 'libtool' called is the OpenBSD libtool,
> which does not have that bug.
Unfortunately, that's not the case. The release tarball includes
whatever libtool script is on the system that generated it.
--
Måns Rullgård
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next prev parent reply other threads:[~2020-08-27 11:08 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-19 20:40 Build system cleanup Måns Rullgård
2020-08-20 20:40 ` Wolfgang Stoeggl via SoX-devel
2020-08-20 21:22 ` Måns Rullgård
2020-08-20 22:15 ` Wolfgang Stoeggl via SoX-devel
2020-08-21 8:24 ` Jan Stary
2020-08-21 8:16 ` Jan Stary
2020-08-21 8:31 ` Jan Stary
2020-08-21 10:28 ` Måns Rullgård
2020-08-21 12:24 ` Jan Stary
2020-08-21 12:46 ` Måns Rullgård
2020-08-21 8:49 ` Jan Stary
2020-08-21 10:33 ` Måns Rullgård
2020-08-21 12:49 ` Jan Stary
2020-08-21 12:50 ` Jan Stary
2020-08-21 13:32 ` Måns Rullgård
2020-08-21 14:09 ` Jan Stary
2020-08-21 11:15 ` Måns Rullgård
2020-08-21 14:04 ` Jan Stary
2020-08-21 14:47 ` Måns Rullgård
2020-08-21 19:26 ` Wolfgang Stoeggl
2020-08-21 20:20 ` Jan Stary
2020-08-21 15:16 ` Jan Stary
2020-08-21 15:21 ` Jan Stary
2020-08-21 17:08 ` Måns Rullgård
2020-08-21 17:43 ` Jan Stary
2020-08-21 17:52 ` Måns Rullgård
2020-08-21 17:57 ` Jan Stary
2020-08-21 20:17 ` Jan Stary
2020-08-21 20:45 ` Jan Stary
2020-08-21 21:43 ` Måns Rullgård
2020-08-22 8:17 ` Jan Stary
2020-08-22 10:10 ` Måns Rullgård
2020-08-22 15:35 ` Jan Stary
2020-08-22 15:44 ` Jan Stary
2020-08-22 20:54 ` Måns Rullgård
2020-08-23 14:07 ` Jan Stary
2020-08-23 17:13 ` Måns Rullgård
2020-08-23 19:46 ` Jan Stary
2020-08-24 11:04 ` Måns Rullgård
2020-08-24 11:19 ` Jan Stary
2020-08-27 9:38 ` Jan Stary
2020-08-27 10:53 ` Måns Rullgård
2020-08-23 21:55 ` Jan Stary
2020-08-24 6:56 ` Jan Stary
2020-08-27 9:40 ` Jan Stary
2020-08-27 11:08 ` Måns Rullgård [this message]
2020-08-27 11:37 ` Jan Stary
2020-08-27 11:53 ` Måns Rullgård
2020-08-27 13:05 ` Jan Stary
2020-08-27 13:31 ` Måns Rullgård
2020-08-27 14:10 ` Jan Stary
2020-08-27 14:38 ` Jan Stary
2020-08-27 15:11 ` Måns Rullgård
2020-08-27 17:41 ` Jan Stary
2020-08-27 18:50 ` Måns Rullgård
2020-08-27 19:18 ` Jan Stary
2020-08-28 4:54 ` Jan Stary
2020-08-28 9:13 ` Måns Rullgård
2020-08-24 12:19 ` Måns Rullgård
2020-08-24 14:43 ` Jan Stary
2020-08-24 14:59 ` Måns Rullgård
2020-08-27 9:44 ` Jan Stary
2020-08-27 11:08 ` Måns Rullgård
2020-08-24 17:22 ` Måns Rullgård
2020-08-22 15:43 ` Jan Stary
2020-08-22 15:48 ` Jan Stary
2020-08-24 12:18 ` Jan Stary
2020-08-24 12:27 ` Måns Rullgård
2020-08-24 13:16 ` Jan Stary
2020-08-24 14:15 ` Måns Rullgård
2020-08-27 9:52 ` Jan Stary
2020-08-27 11:10 ` Måns Rullgård
-- strict thread matches above, loose matches on Subject: below --
2020-08-21 8:52 Jan Stary
2020-08-21 10:36 ` Måns Rullgård
2020-08-21 12:22 ` Jan Stary
2020-08-21 12:27 ` Måns Rullgård
2020-08-27 9:21 Jan Stary
2020-08-27 10:54 ` Jan Stary
2020-08-27 11:52 ` Måns Rullgård
2020-08-27 12:40 ` Jan Stary
2020-08-27 12:44 ` Jan Stary
2020-08-27 12:45 ` Måns Rullgård
2020-08-27 17:45 ` Jan Stary
2020-08-27 18:59 ` Måns Rullgård
2020-08-27 19:51 ` Jan Stary
2020-08-27 20:01 ` Jan Stary
2020-08-28 9:21 ` Måns Rullgård
2020-08-28 9:35 ` Jan Stary
2020-08-28 9:43 ` Måns Rullgård
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