Remove dynamic linking to Pallene Tracer

src/pallene/c_compiler.lua

@@ -18,7 +18,6 @@ local c_compiler = {}
 
 local CC       = os.getenv("CC")       or "cc"
 local CFLAGS   = os.getenv("CFLAGS")   or "-O2"
-local PTLIBDIR = os.getenv("PTLIBDIR") or "/usr/local/lib"
 
 local function get_uname()
     local ok, err, uname = util.outputs_of_execute("uname -s")
@@ -62,8 +61,6 @@ function c_compiler.compile_o_to_so(in_filename, out_filename)
         CFLAGS_SHARED,
         "-o", util.shell_quote(out_filename),
         util.shell_quote(in_filename),
-        "-lptracer",
-        "-Wl,-rpath="..PTLIBDIR,
     })
 end
 

src/pallene/pallenelib.lua

@@ -48,6 +48,7 @@ return [==[
 
 /* Pallene Tracer for function call tracebacks. */
 /* Look at `https://github.com/pallene-lang/pallene-tracer` for more info. */
+#define  PT_IMPLEMENTATION
 #include <ptracer.h>
 
 #define PALLENE_UNREACHABLE __builtin_unreachable()