How to Resolve Undefined Symbols for Architecture x86_64 While Compiling FFmpeg with x264?
I am working on compiling FFmpeg version 0.9.0.git with x264 version 0.120 on an x86_64 system, and I am encountering an issue during the build process.
Here’s how I am configuring FFmpeg:
After configuring, I run
I expected the build to complete successfully without errors, allowing me to use the compiled FFmpeg with x264
Instead, the build process failed with the linker unable to find certain symbols (
I tried cleaning the build directory and recompiling, but the issue persists.
Does anyone have experience with this specific error or know how to resolve the undefined symbols for architecture x86_64? Any advice on what I might be missing or what additional dependencies I need to check for?
Here’s how I am configuring FFmpeg:
After configuring, I run
makeI expected the build to complete successfully without errors, allowing me to use the compiled FFmpeg with x264
Instead, the build process failed with the linker unable to find certain symbols (
_MM_FIX_0_707106781_MM_FIX_0_541196100vf_fspp.olibavfilter.aI tried cleaning the build directory and recompiling, but the issue persists.
Does anyone have experience with this specific error or know how to resolve the undefined symbols for architecture x86_64? Any advice on what I might be missing or what additional dependencies I need to check for?
Solution
If you are on a Mac, then this post from StackOverflow may help
https://stackoverflow.com/questions/5338068/problem-with-link-time-optimization-causing-undefined-symbols-with-asm-constants
https://stackoverflow.com/questions/5338068/problem-with-link-time-optimization-causing-undefined-symbols-with-asm-constants
Stack Overflow
I am compiling mplayer with llvm-gcc-4.2.1.
With '-O1' (which disables link time optimization), the program successfully compiles and links. With '-O2' or '-O1 -flto', ld complains of undefined
With '-O1' (which disables link time optimization), the program successfully compiles and links. With '-O2' or '-O1 -flto', ld complains of undefined
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