undefined symbol: png_create_write_struct

[alexbeletsky]

node: 0.8.14
libpng: 1.4.12

Package installed successfully, but if I try one of examples, I got:

 node: symbol lookup error: /vagrant/app/node_modules/png/build/Release/png.node: undefined symbol:    png_create_write_struct

[darkyen]

try ldd on the png.node and kindly send the reply here , if its still relevant :-)

[victor73]

I get this issue too on Ubuntu 12.10 x86_64:

node 0.8.4
libpng: 1.2.49-1ubuntu1

ldd ~/node_modules/png/build/Release/png.node
    linux-vdso.so.1 =>  (0x00007fffb21ff000)
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fa11c362000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fa11c14c000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fa11bd8c000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fa11ba90000)
    /lib64/ld-linux-x86-64.so.2 (0x00007fa11c8a7000)

[darkyen]

@victor73 its not linking libpng "clearly"

Make sure your libpng is in your link paths , defined in the .gyp or re-configure it and build it as per your computer's filesystem statistics

[samccone]

similar issue

per @darkyen request

otool -l build/Release/png.node

build/Release/png.node:
Load command 0
      cmd LC_SEGMENT_64
  cmdsize 632
  segname __TEXT
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Section
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     align 2^1 (2)
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     flags 0x80000408
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Section
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     align 2^2 (4)
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Section
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Section
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     align 2^0 (1)
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Section
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    offset 24412
     align 2^0 (1)
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Section
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     align 2^3 (8)
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Load command 1
      cmd LC_SEGMENT_64
  cmdsize 472
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Section
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Section
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      addr 0x0000000000007010
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    offset 28688
     align 2^3 (8)
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     flags 0x00000006
 reserved1 89 (index into indirect symbol table)
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Section
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      addr 0x0000000000007040
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    offset 28736
     align 2^3 (8)
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Section
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     align 2^4 (16)
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Section
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      addr 0x00000000000073a0
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     align 2^4 (16)
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Load command 2
      cmd LC_SEGMENT_64
  cmdsize 72
  segname __LINKEDIT
   vmaddr 0x0000000000008000
   vmsize 0x0000000000006000
  fileoff 32768
 filesize 22088
  maxprot 0x00000007
 initprot 0x00000001
   nsects 0
    flags 0x0
Load command 3
          cmd LC_ID_DYLIB
      cmdsize 40
         name @rpath/png.node (offset 24)
   time stamp 1 Wed Dec 31 19:00:01 1969
      current version 0.0.0
compatibility version 0.0.0
Load command 4
     cmd LC_SYMTAB
 cmdsize 24
  symoff 33648
   nsyms 574
  stroff 43664
 strsize 11192
Load command 5
            cmd LC_DYSYMTAB
        cmdsize 80
      ilocalsym 0
      nlocalsym 413
     iextdefsym 413
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      iundefsym 489
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Load command 6
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    uuid D5B9D537-D05D-3B87-99E3-0B6EF5B3EF25
Load command 7
      cmd LC_VERSION_MIN_MACOSX
  cmdsize 16
  version 10.5
      sdk 10.8
Load command 8
          cmd LC_LOAD_DYLIB
      cmdsize 56
         name /usr/lib/libstdc++.6.dylib (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 56.0.0
compatibility version 7.0.0
Load command 9
          cmd LC_LOAD_DYLIB
      cmdsize 56
         name /usr/lib/libSystem.B.dylib (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 169.3.0
compatibility version 1.0.0
Load command 10
          cmd LC_LOAD_DYLIB
      cmdsize 56
         name /usr/lib/libgcc_s.1.dylib (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 1669.0.0
compatibility version 1.0.0
Load command 11
      cmd LC_FUNCTION_STARTS
  cmdsize 16
  dataoff 33536
 datasize 112
Load command 12
      cmd LC_DATA_IN_CODE
  cmdsize 16
  dataoff 33648
 datasize 0

[samccone]

fixed in #29

[pkrumins]

I've merged all @samccone's patches. It should be working now!

[pkrumins]

I've published it as version 3.0.1 on npm! Try it out. If it works, I'll close this issue.