Hi Gavin!!
I set
-shared -Wl,-Bsymbolic
in the linker flags of my library, that depends of libavcodec, libavutil,
libavformat...
However when Im going to call av_register_all(); I get the same error:
/usr/local/lib/libavcodec.a(lpc_mmx.o): relocation R_X86_64_PC32 against
symbol `ff_pd_1' can not be used when making a shared object; recompile
with -fPIC
///////
I think that I have to set the flag -fPIC for compiling the libavcodec,
libavutil, libavformat, so I added: enable pic , in the configure file of the
ffmpeg project:
# OS specific
case $target_os in
linux)
add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
enable pic
enable dv1394
Therefore when ffmpeg is compiled, libavcodec, libavutil, libavformat were
compiled with -fPIC.... then when should be ok If I want to use them in my
libx.so ... but It is not, I have the same error:
/usr/local/lib/libavcodec.a(lpc_mmx.o): relocation R_X86_64_PC32 against
symbol `ff_pd_1' can not be used when making a shared object; recompile
with -fPIC
I dont know wish is the problem with ffmpeg and -fPIC...
On 05/03/2013 06:32 AM, Gavin Kinsey wrote:
On Wednesday 01 May 2013 15:41:48 Dayana wrote:
Hi!!! Im developing an aplication using libavcodec, libavformat and
libavutil. Im trying to make a shared library and for that I have to get
libavs compiled with -fPIC ... I was trying to do it by setting
--enable-pic in the configure file, however Im still have the same error:
/usr/local/lib/libavcodec.a(lpc_mmx.o): relocation R_X86_64_PC32 against
symbol `ff_pd_1' can not be used when making a shared object; recompile
with -fPIC
If you are trying to combine several ffmpeg libraries into a single shared
library as I have seen some apps try to do then you need to use the
following linker flag on the final library build step.
-shared -Wl,-Bsymbolic
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