| Issue 48: | How to build png22pnm for Mac OS X? | |
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I'm running Mac OS X 10.7.0 and would like to use pdfsizeopt. I've got everything going execept the png22pnm binary because it isnt included for sam2p. Where do I get the sourcefiles or a working binary?
Aug 6, 2011
Project Member
#1
pts...@gmail.com
Aug 6, 2011
To make future installations easier, I've uploaded prebuilt Mac OS X binaries for sam2p and png22pnm: http://pdfsizeopt.googlecode.com/files/png22pnm-darwin http://pdfsizeopt.googlecode.com/files/sam2p-darwin You don't have to compile these if you don't want to. See https://code.google.com/p/pdfsizeopt/wiki/InstallationInstructions how to use the binaries above with pdfsizeopt.
Status:
Fixed
Aug 7, 2011
Thanks. When I try to build png22pnm from source, the bash-script "do.sh" tells me "status png22pnm: skipped". Any suggestions? Also one more question regarding the compression optimization: every pdf I run through pdfsizeopt appears to be just slightly smaller then the original (see the attachment for further information). It seems that jbig2 isn't executed properly, but it's working when run as a single command. The only why to compile it was through a homebrew formula front Misty De Meo: http://www.diybookscanner.org/forum/viewtopic.php?f=3&t=683&p=10895#p10895 https://raw.github.com/mistydemeo/homebrew/0c3427ee1e9be6aaaed5a15f8d0d6e63d610d2f1/Library/Formula/jbig2enc.rb Do you have a darwin binary for jbig2enc?
Aug 7, 2011
Wrong URL for the formula, here is the new one: https://raw.github.com/mistydemeo/homebrew/55e72cf6b673d82838ea233022daecd77f738c99/Library/Formula/jbig2enc.rb
Aug 7, 2011
Has the png22pnm problem been solved for you with the binaries I have provided? > the bash-script "do.sh" tells me "status png22pnm: skipped". Any suggestions? Most probably the bash script hasn't been properly written -- or you don't have libpng installed. Feel free to analyze the script if its output is not verbose enough. Is this a blocker for you? Doesn't the precompiled binary work? About your jbig2 problem: please create another issue for it. Please attach a small input .pdf. Please copy-paste the output of pdfsizeopt (rather than attaching).
Aug 8, 2011
The precompiled binary works but I just wanted to know if you could explain me the reason for the skipping of png22pnm. libpng is installed so it must be some other reason. Here's the output from doing ./configure checking for --enable-debug... assert checking for gcc... gcc checking for C compiler default output... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ANSI C... none needed checking whether gcc accepts -ansi -pedantic -Wall -W... yes checking for ignored -W -Wall -Wnested-externs -Wbad-function-cast -Wmissing-declarations... no checking whether gcc accepts -Wnested-externs -Wbad-function-cast -Wmissing-declarations... yes checking whether gcc accepts -Wstrict-prototypes -Wpointer-arith -Wcast-align -Winline -Wcast-qual -Wmissing-prototypes... yes checking how to run the C preprocessor... gcc -E checking for egrep... grep -E checking for ANSI C header files... yes checking whether cc supports prototypes... yes checking whether cc compiles standard C... yes checking for switch(enum) bug... no checking for ASCII system... yes checking for an ANSI C-conforming const... yes checking for C keyword volatile... yes checking for --with-libtiff-ldir... none checking for --with-libtiff-idir... none checking for --with-libpng-ldir... none checking for --with-libpng-idir... none checking for library containing TIFFRGBAImageGet... -ltiff checking for library containing png_create_read_struct... no checking for working sprintf in stdio.h... yes checking for working atoi in stdlib.h... yes checking for working write in unistd.h... yes checking for working strcpy in string.h... yes checking for working memcpy in string.h... yes checking whether memcmp and memcpy are built-in... no checking whether char is unsigned... no checking size of char... 1 checking size of short... (cached) 2 checking size of int... (cached) 4 checking size of long... (cached) 8 checking size of long long... 8 checking size of very long... (cached) 0 checking size of __int64... (cached) 0 configure: WARNING: cannot find inttype: sizeof(inttype)==16 checking size of char *... (cached) 8 checking size of void *... 8 checking for an integral type to hold a ptr... long checking for ptr <-> integral conversion... yes checking for integral type size_t... unsigned long checking size of bool... 0 configure: creating ./config.status config.status: creating cc_help.sh config.status: creating config.h config.status: config.h is unchanged status tif22pnm: to be built (with -ltiff ) status png22pnm: skipped
Aug 8, 2011
The most probable reason is that the configure script cannot detect libpng 1.2, as indicated by: checking for library containing png_create_read_struct... no
Aug 9, 2011
Where does the script search for libpng? I installed it from macports: https://trac.macports.org/browser/trunk/dports/graphics/libpng/Portfile .
Aug 9, 2011
Sorry, I don't have the capacity for providing support for this script on the Mac OS X. My last hint: you don't need the script at all, you can compile with gcc -W -Wall -s -O2 -o png22pnm png22pnm.c -lpng -lz |