linux condition

Signed-off-by: dsengupta0628 <dsengupta@precisioninno.com>

Author: dsengupta0628

bazel/tcl_library_init.cc

@@ -15,8 +15,10 @@
 #if TCL_MAJOR_VERSION >= 9 && !defined(USE_TCL_RUNFILE_INIT)
 #include "bazel/tcl_resources_zip_data.h"
 #else
+#ifdef __linux__
 #include <linux/limits.h>
 #include <unistd.h>
+#endif
 
 #include <memory>
 
@@ -41,10 +43,14 @@ static std::optional<std::string> TclLibraryMountPoint(Tcl_Interp* interp)
   std::string error;
   // Use /proc/self/exe to resolve the real binary path, as argv[0] may
   // point into a sandbox where the .runfiles tree does not exist.
+#ifdef __linux__
   char buf[PATH_MAX + 1];
   ssize_t len = readlink("/proc/self/exe", buf, PATH_MAX);
   std::string exe_path = (len > 0) ? std::string(buf, len)
                                    : std::string(Tcl_GetNameOfExecutable());
+#else
+  std::string exe_path(Tcl_GetNameOfExecutable());
+#endif
   std::unique_ptr<Runfiles> runfiles(
       Runfiles::Create(exe_path, BAZEL_CURRENT_REPOSITORY, &error));
   if (!runfiles) {