Issue compiling MuJS with Position-Independent Code (-fPIC)

[marione44]

Hi, I’m trying to build the latest version of MuJS on Ubuntu 20.04, but I’m encountering issues with generating Position-Independent Code using the -fPIC flag. Despite adding the -fPIC flag, using CFLAGS or by modifying the Makefile to include -fPIC, the resulting build is not generating Position-Independent Code.

Even after using the -fPIC flag, the resulting build still fails to generate PIC, causing this error when trying to link MuJS into MPV:

/usr/bin/ld: /mnt/Windows/Desktop/Movies/mpv/mujs/build/release/libmujs.a(libmujs.o): relocation R_X86_64_PC32 against symbol`   stdout@@GLIBC_2.2.5' can not be used when making a shared object; recompile with -fPIC

I tried many versions of mujs but the problem persist. In older versions of mpv where mujs doesn't require to be Position Independent Code i have no issues, however mpv 0.40 requires it and i cannot build it.

Steps to Reproduce:

Download and extract the latest MuJS source.

Run the command: make CFLAGS="-fPIC" prefix=/mnt/custom/path install

or Modify the Makefile to include -fPIC in the CFLAGS (as follows):
CFLAGS := -std=c99 -pedantic -Wall -Wextra -Wno-unused-parameter -fPIC

Extract the .a archive with ar:
ar x libmujs.a

Run the following command to check for relocations:
readelf --relocs *.o | grep R_X86_64_PC32

You will see R_X86_64_PC32 in the output, indicating that the code is not position-independent.