patch 8.0.0464: can't find executable name on Solaris and FreeBSD commit https://github.com/vim/vim/commit/f3757f0c87bbd52c7989c85dcbd21511bffcbdd6 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Mar 16 15:13:45 2017 +0100 patch 8.0.0464: can't find executable name on Solaris and FreeBSD Problem: Can't find executable name on Solaris and FreeBSD. Solution: Check for "/proc/self/path/a.out". (Danek Duvall) And for "/proc/curproc/file".

--- a/src/main.c
+++ b/src/main.c
@@ -3539,11 +3539,11 @@ set_progpath(char_u *argv0)
 {
     char_u *val = argv0;
 
-# ifdef HAVE_PROC_SELF_EXE
+# ifdef PROC_EXE_LINK
     char    buf[PATH_MAX + 1];
     ssize_t len;
 
-    len = readlink("/proc/self/exe", buf, PATH_MAX);
+    len = readlink(PROC_EXE_LINK, buf, PATH_MAX);
     if (len > 0)
     {
 	buf[len] = NUL;