Problem with libpng

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originally posted by leewood@Jul 31 2006, 02:27 AM

hi,

i compiled the kernel with building libpng (kernel/library/defaul tselection->customize vendor /user settings->library configuration->build libpng).i have selected building libz which was needed by libpng.

but it failed.the error as follow:

.......

make[2]: entering directory `/home/leewood/uclinux-dist-test/include'

find . -depth -type l -a ! -name makefile | xargs rm > /dev/null 2>&1 || exit 0

find . -depth -type d | xargs rmdir > /dev/null 2>&1 || exit 0

making symlinks in include/

making include/c++ symlink to compiler c++ includes

make[2]: leaving directory `/home/leewood/uclinux-dist-test/include'

make[2]: entering directory `/home/leewood/uclinux-dist-test/lib'

making symlinks in lib/

make[2]: leaving directory `/home/leewood/uclinux-dist-test/lib'

make[2]: entering directory `/home/leewood/uclinux-dist-test/include'

find . -depth -type l -a ! -name makefile | xargs rm > /dev/null 2>&1 || exit 0

find . -depth -type d | xargs rmdir > /dev/null 2>&1 || exit 0

making symlinks in include/

making include/c++ symlink to compiler c++ includes

make[2]: leaving directory `/home/leewood/uclinux-dist-test/include'

make[2]: entering directory `/home/leewood/uclinux-dist-test/lib'

making symlinks in lib/

make[2]: leaving directory `/home/leewood/uclinux-dist-test/lib'

make[2]: entering directory `/home/leewood/uclinux-dist-test/lib/zlib'

make[2]: nothing to be done for `all'.

make[2]: leaving directory `/home/leewood/uclinux-dist-test/lib/zlib'

make[2]: entering directory `/home/leewood/uclinux-dist-test/lib'

making symlinks in lib/

make[2]: leaving directory `/home/leewood/uclinux-dist-test/lib'

make[2]: entering directory `/home/leewood/uclinux-dist-test/lib/libpng'

nios2-linux-uclibc-gcc -shared -wl,-soname,libpng.so.2 -o libpng.so.2.1.0.12

png.pic.o pngset.pic.o pngget.pic.o pngrutil.pic.o pngtrans.pic.o pngwutil.pic.o pngread.pic.o pngrio.pic.o pngwio.pic.o pngwrite.pic.o pngrtran.pic.o pngwtran.pic.o pngmem.pic.o pngerror.pic.o pngpread.pic.o -l../zlib -lz -lm -lc

nios2-linux-uclibc-gcc: unrecognized option `-shared'

/opt/nios2/lib/gcc/nios2-linux-uclibc/3.4.6/../../../../nios2-linux-uclibc/lib/crt1.o(.text+0x10): in function `_start':

: undefined reference to `main'

/opt/nios2/lib/gcc/nios2-linux-uclibc/3.4.6/../../../../nios2-linux-uclibc/lib/crt1.o(.text+0x14): in function `_start':

: undefined reference to `main'

collect2: ld returned 1 exit status

make[2]: *** [libpng.so.2.1.0.12] 错误 1

make[2]: leaving directory `/home/leewood/uclinux-dist-test/lib/libpng'

make[1]: *** [all] 错误 2

make[1]: leaving directory `/home/leewood/uclinux-dist-test/lib'

make: *** [subdirs] 错误 1

[leewood@localhost uclinux-dist-test]$

pls help.thanks!

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hi leewood,

You might have solved problem by your self, but if not, then here is the reason......

nios2-linux-uclibc-gcc: unrecognized option `-shared'

nios2-linux-uclibc-gcc does not compile shared libraries, you need to compile libpng lib as static.

nios2-linux-uclibc-gcc will not take "-g", "-shared" options.

What you need to do is ..... in configure script either give "static" option or either remove "-shared" from your all Makefiles.

Do remember to make distclean your code : ).

thanks,

Ankur