[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: TODO
From: |
Gary V. Vaughan |
Subject: |
Re: TODO |
Date: |
Tue, 16 Nov 2004 01:20:58 +0000 |
User-agent: |
Mozilla Thunderbird 0.9 (Macintosh/20041103) |
Bob Friesenhahn wrote:
On Mon, 15 Nov 2004, Gary V. Vaughan wrote:
Bob Friesenhahn wrote:
Doesn't this patch cause Linux to be more equal than other operating
systems, thereby causing free applications to be developed which won't
work anywhere else?
No, it just shortens the link line on platforms that support that.
The point of my statement is that many applications are developed solely
under Linux, but the authors expect them to be portable because they use
autotools and standard APIs. It seems that the shortened link line will
allow developers to not list the dependencies which are necessary on
some other platforms.
That's not what I mean at all. The call to libtool will be exactly the
same. Holding up my horrid gdiplus example again, with or without this
change the user will call libtool like this:
libtool --mode=link gcc -o app obj.o /opt/libgdiplus10/lib/libgdiplus.la
On a linker that can't handle deplibs unaided, libtool will run:
gcc -o app obj.o \
/opt/libgdiplus10/lib/libgdiplus.so \
-L/opt/libttf21/lib -L/opt/zlib11/lib -L/opt/gettext014/lib \
-L/opt/libglib24/lib -L/opt/libiconv19/lib \
/opt/libglib24/lib/libglib-2.0.so \
/opt/gettext014/lib/libintl.so \
/opt/libiconv19/lib/libiconv.so \
-L/opt/cairo02/lib -L/opt/fcpackage22/lib -L/usr/X11R6/lib \
-L/opt/libpixman01/lib -L/opt/libpng12/lib \
/opt/libcairo02/lib/libcairo.so \
-L/opt/libexpat12/lib \
/opt/fcpackage22/lib/libfontconfig.so \
/opt/libexpat12/lib/libexpat.so \
/opt/libpixman01/lib/libpixman.so \
/opt/fcpackage22/lib/libXrender.so -lXext /opt/libttf21/lib/libfreetype.so \
-L/opt/libtiff35/lib -ltiff \
-L/opt/libjpeg6b/lib /opt/libjpeg6b/lib/libjpeg.so \
-L/opt/libungif41/lib /opt/libungif41/lib/libungif.so -lX11
/opt/libpng12/lib/libpng.so -lm \
/opt/zlib11/lib/libz.so -lpthread \
-Wl,-rpath -Wl,/opt/libgdiplus10/lib \
-Wl,-rpath -Wl,/opt/libglib24/lib \
-Wl,-rpath -Wl,/opt/gettext014/lib \
-Wl,-rpath -Wl,/opt/libiconv19/lib \
-Wl,-rpath -Wl,/opt/libcairo02/lib \
-Wl,-rpath -Wl,/opt/fcpackage22/lib \
-Wl,-rpath -Wl,/opt/libexpat12/lib \
-Wl,-rpath -Wl,/opt/libpixman01/lib \
-Wl,-rpath -Wl,/opt/libttf21/lib \
-Wl,-rpath -Wl,/opt/libjpeg6b/lib \
-Wl,-rpath -Wl,/opt/libungif41/lib \
-Wl,-rpath -Wl,/opt/libpng12/lib \
-Wl,-rpath -Wl,/opt/zlib11/lib
But where the linker can already do this work, libtool will issue:
gcc -o app obj.o \
/opt/libgdiplus10/lib/libgdiplus.so \
-Wl,-rpath -Wl,/opt/libgdiplus10/lib
From the outside, nothing changes. Except that libtool trusts you
to have linked your deplibs properly.
The result of this is more applications which
don't compile and link outside of Linux. There are an abundance of new
Linux programmers for which Linux is the new "Windows" (single operating
system mentality) and have not bought into the open systems concept.
Given that these programmers don't have experience with any other Unix
system, and are unlikely to test on other systems, it is useful if
libtool helps aid/enforce portability by any means available.
I get the feeling we're talking past each other here a little. Am I
missing your point somehow?
Cheers,
Gary.
--
Gary V. Vaughan ())_. address@hidden,gnu.org}
Research Scientist ( '/ http://tkd.kicks-ass.net
GNU Hacker / )= http://www.gnu.org/software/libtool
Technical Author `(_~)_ http://sources.redhat.com/autobook
signature.asc
Description: OpenPGP digital signature
- Re: TODO, (continued)
- Re: TODO, Ralf Wildenhues, 2004/11/15
- Re: TODO, Howard Chu, 2004/11/15
- Re: TODO, Ralf Wildenhues, 2004/11/16
- Re: TODO, Bob Friesenhahn, 2004/11/15
- Re: TODO, Daniel Reed, 2004/11/15
- Re: TODO, Jacob Meuser, 2004/11/15
- Re: TODO, Daniel Reed, 2004/11/16
- Re: TODO, Jacob Meuser, 2004/11/16
- Re: TODO,
Gary V. Vaughan <=
- Re: TODO, Bob Friesenhahn, 2004/11/15
- Re: TODO, Jacob Meuser, 2004/11/15
- Re: TODO, Bob Friesenhahn, 2004/11/15
- Re: TODO, Jacob Meuser, 2004/11/15
- Re: TODO, Scott James Remnant, 2004/11/16
- Re: TODO, Jacob Meuser, 2004/11/16
- Re: TODO, Scott James Remnant, 2004/11/16
- Re: TODO, Jacob Meuser, 2004/11/16
- Re: TODO, Ralf Wildenhues, 2004/11/17
- Re: TODO, Jacob Meuser, 2004/11/17