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[libpng17] Added "Common linking failures" section to INSTALL

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Glenn Randers-Pehrson 2016-07-02 11:52:15 -05:00
parent 0ecbe53243
commit b9d7d5525b
3 changed files with 20 additions and 23 deletions
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1
ANNOUNCE
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@ -1386,6 +1386,7 @@ Version 1.7.0beta82 [July 2, 2016]
depends on PNG_LIBPNG_VER.
Moved pngcp to contrib/tools and added pngcp to the build together
with a pngcp.dfa configuration test (John Bowler)
Added a "Common linking failures" section to the INSTALL document.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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1
CHANGES
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@ -5686,6 +5686,7 @@ Version 1.7.0beta82 [July 2, 2016]
depends on PNG_LIBPNG_VER.
Moved pngcp to contrib/tools and added pngcp to the build together
with a pngcp.dfa configuration test (John Bowler)
Added a "Common linking failures" section to the INSTALL document.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

41
INSTALL
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@ -18,7 +18,8 @@ VIII. Configuring libpng for 16-bit platforms
XIII. Removing unwanted object code
XIV. Changes to the build and configuration of libpng in libpng-1.5.x
XV. Setjmp/longjmp issues
XVI. Other sources of information about libpng
XVI. Common linking failures
XVII. Other sources of information about libpng
I. Simple installation
@ -47,7 +48,9 @@ If configure does not work on your system, or if you have a need to
change configure.ac or Makefile.am, and you have a reasonably
up-to-date set of tools, running ./autogen.sh in a git clone before
running ./configure may fix the problem. To be really sure that you
aren't using any of the included pre-built scripts, you can do this:
aren't using any of the included pre-built scripts, especially if you
are building from a tar distribution instead of a git distribution,
do this:
./configure --enable-maintainer-mode
make maintainer-clean
@ -380,28 +383,20 @@ This requires setjmp/longjmp, so you must either build the library
with PNG_SETJMP_SUPPORTED defined, or with PNG_SIMPLIFIED_READ_SUPPORTED
and PNG_SIMPLIFIED_WRITE_SUPPORTED undefined.
XVI. Other sources of information about libpng:
XVI. Common linking failures
If your application fails to find libpng or zlib entries while linking:
Be sure "-lz" appears after "-lpng" on your linking command.
Be sure you have built libpng, zlib, and your application for the
same platform (e.g., 32-bit or 64-bit).
If you are using the vstudio project, observe the WARNING in
project/vstudio/README.txt.
XVII. Other sources of information about libpng:
Further information can be found in the README and libpng-manual.txt
files, in the individual makefiles, in png.h, and the manual pages
libpng.3 and png.5.
Using the ./configure script -- 16 December 2002.
=================================================
The ./configure script should work compatibly with what scripts/makefile.*
did, however there are some options you might need to add to configure
explicitly, which previously was done semi-automatically (if you didn't edit
scripts/makefile.* yourself, that is)
CFLAGS="-Wall -O -funroll-loops \
-malign-loops=2 -malign-functions=2" ./configure --prefix=/usr/include \
--with-pkgconfigdir=/usr/lib/pkgconfig --includedir=/usr/include
You can alternatively specify --includedir=/usr/include, /usr/local/include,
/usr/include/libpng17, or whatever.
If you find that the configure script is out-of-date or is not supporting
your platform properly, try running autogen.sh to regenerate "configure",
"Makefile.in", and the other configuration files. Then try configure again.