-----------------------------------------------
commit af40c03de86197db4cdd83bc54b039e3b83bc083 (build/stable, local)
from: Sébastien Marie <semarie@online.fr>
date: Thu Apr 15 08:22:55 2021 UTC
 
 openbsd: use crt for libs too
 
diff ac9f86caa383b3632f3f51ae1412c54a4a687980 edeaa19171183988fc295571578317941f8b7b9b
blob - f60a7423a2fef6ab9be14298e0e35f593279e5a1
blob + f78aa2f5adf0ae9000ac5c7c51ab160031bca1ec
--- src/link/Elf.zig
+++ src/link/Elf.zig
@@ -1529,8 +1529,13 @@ fn linkWithLLD(self: *Elf, comp: *Compilation) !void {
             if (target_util.libc_needs_crti_crtn(target)) {
                 try argv.append(try comp.get_libc_crt_file(arena, "crti.o"));
             }
-            if (target.os.tag == .openbsd) {
+        }
+
+        if (target.os.tag == .openbsd and self.base.options.link_libc) {
+            if (self.base.options.output_mode == .Exe) {
                 try argv.append(try comp.get_libc_crt_file(arena, "crtbegin.o"));
+            } else if (self.base.options.output_mode == .Lib) {
+                try argv.append(try comp.get_libc_crt_file(arena, "crtbeginS.o"));
             }
         }
 
@@ -1688,12 +1693,17 @@ fn linkWithLLD(self: *Elf, comp: *Compilation) !void {
         if (link_in_crt) {
             if (target.isAndroid()) {
                 try argv.append(try comp.get_libc_crt_file(arena, "crtend_android.o"));
-            } else if (target.os.tag == .openbsd) {
-                try argv.append(try comp.get_libc_crt_file(arena, "crtend.o"));
             } else if (target_util.libc_needs_crti_crtn(target)) {
                 try argv.append(try comp.get_libc_crt_file(arena, "crtn.o"));
             }
         }
+        if (self.base.options.link_libc and target.os.tag == .openbsd) {
+            if (self.base.options.output_mode == .Exe) {
+                try argv.append(try comp.get_libc_crt_file(arena, "crtend.o"));
+            } else if (self.base.options.output_mode == .Lib) {
+                try argv.append(try comp.get_libc_crt_file(arena, "crtendS.o"));
+            }
+        }
 
         if (allow_shlib_undefined) {
             try argv.append("--allow-shlib-undefined");