The other day I tried to compile SQLite source code with Mingw-w64 compiler (MSYS2 distro). I headed on over to SQLite.org for the instruction. I run Mingw-w64 compiler environment and typed command:
gcc shell.c sqlite3.c -lpthread -ldl
What the hell? I was thinking “Now, just breathe deeply and think, please.” The message was “….. ld.exe cannot find -ldl”
- Question 1 - what is ld.exe? Answer LoaD
- Question 2 - what is -ldl? Answer -l is a linker option. It’s a shortcut means linking libdl library
OK. But how can I find and install this library? Msys2 uses pacman as a package manager. It means I should read the documentation. Reading…….
A few examples of pacman commands:
Synchronizes the repository databases and updates all the system's packages: pacman -Syu
Install package: pacman -S <package_name>
example install make.exe : pacman -S make
Remove package pacman: -R <package_name>
example uninstall make.exe : pacman -R make
Now it’s high time to install missing libdl.a library. Please follow three step procedure to solve our problem.
| Description | Command |
|---|---|
| 1.update the pacman files database | pacman -Fy |
| 2.search the files database for libdl.a | pacman -Fs libdl.a |
| 3.install missing package | pacman -S mingw-w64-x86_64-dlfcn |
Remember, always stay calm and keep your wits about yourself.