commit 1a3e5747b7df7ddda312bbfd18e04fc2122001fb
author Martin Tournoij <martin@arp242.net> Sat Jul 24 13:57:29 2021 +0200
committer Bram Moolenaar <Bram@vim.org> Sat Jul 24 13:57:29 2021 +0200
tree df3916d14b86db869aa32ce5a032e4d7dc09f0fa
parent 5a234eb18e6e43408755bb24e813330306c11629

patch 8.2.3208: dynamic library load error does not mention why it failed

Problem:    Dynamic library load error does not mention why it failed.
Solution:   Add the error message. (Martin Tournoij, closes #8621)

src/if_tcl.c

diff --git a/src/if_tcl.c b/src/if_tcl.c
index c3b9c5b..f3f4b07 100644
--- a/src/if_tcl.c
+++ b/src/if_tcl.c
@@ -167,11 +167,13 @@
 #  define load_dll(n) dlopen((n), RTLD_LAZY|RTLD_GLOBAL)
 #  define symbol_from_dll dlsym
 #  define close_dll dlclose
+#  define load_dll_error dlerror
 # else
 #  define TCL_PROC FARPROC
 #  define load_dll vimLoadLib
 #  define symbol_from_dll GetProcAddress
 #  define close_dll FreeLibrary
+#  define load_dll_error GetWin32Error
 # endif
 
 /*
@@ -213,7 +215,7 @@
     if (!(hTclLib = load_dll(libname)))
     {
 	if (verbose)
-	    semsg(_(e_loadlib), libname);
+	    semsg(_(e_loadlib), libname, load_dll_error());
 	return FAIL;
     }
     for (i = 0; tcl_funcname_table[i].ptr; ++i)