From 2751a98e33a4fa8cd2602b4d03cb81ebf68a83a1 Mon Sep 17 00:00:00 2001
From: "H. Utku Maden" <utkumaden@hotmail.com>
Date: Sat, 9 Sep 2023 21:50:56 +0300
Subject: [PATCH 1/2] Fix typo that copied argv to argc.

---
 src/options.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/options.c b/src/options.c
index 95fdad4..c4ce357 100644
--- a/src/options.c
+++ b/src/options.c
@@ -24,7 +24,7 @@ MX_IMPL void mx_options_begin_r(mx_options_t *self, mx_optflag_t flags, int argc
     MX_ASSERT(argc > 0, "Arguments count must be greater than zero.");
 
     self->flags = flags;
-    self->argc  = argv;
+    self->argv  = argv;
     self->argc  = argc;
     self->i     = 0;
     self->kind  = MX_OPT_END;

From b19f8d13052907b779310b27e9b091738a23aeb0 Mon Sep 17 00:00:00 2001
From: "H. Utku Maden" <utkumaden@hotmail.com>
Date: Sun, 10 Sep 2023 20:44:54 +0300
Subject: [PATCH 2/2] mx/dynlink.h API.

---
 include/mx/dynlink.h | 40 ++++++++++++++++++++++++++++++++++++++++
 src/dynlink.unix.c   | 36 ++++++++++++++++++++++++++++++++++++
 src/dynlink.win32.c  | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 109 insertions(+)
 create mode 100644 include/mx/dynlink.h
 create mode 100644 src/dynlink.unix.c
 create mode 100644 src/dynlink.win32.c

diff --git a/include/mx/dynlink.h b/include/mx/dynlink.h
new file mode 100644
index 0000000..adb4f80
--- /dev/null
+++ b/include/mx/dynlink.h
@@ -0,0 +1,40 @@
+#ifndef _MX_DYNLINK_H_
+#define _MX_DYNLINK_H_
+/**
+ * @file dynlink.h LibMX Dynamic Linker
+ *
+ * The LibMX dynamic linker is intended to wrap over the native operating system
+ * functionalities normally provided by their respective user libraries.
+ * Internally dlfunc (*NIX) or LoadLibrary (Win32) is used.
+ */
+
+#include "mx/base.h"
+
+/** Handle to module. */
+typedef void *mx_lib_t;
+
+/** Handle to own module. */
+#define MX_LIB_SELF ((mx_lib_t)~0ll)
+
+/**
+ * Open a library.
+ * @param[in] name The name of the library.
+ * @return Handle to the library. Check against NULL.
+ */
+MX_API mx_lib_t mx_lib_open(const char *name);
+
+/**
+ * Close an already open library.
+ * @param[in] lib The library to close.
+ */
+MX_API void mx_lib_close(mx_lib_t lib);
+
+/**
+ * Get the address of a symbol. (a global variable or function.)
+ * @param[in] lib The library to look up.
+ * @param[in] symbol The name of the symbol to look up.
+ * @return Address to the storage location for the symbol.
+ */
+MX_API void *mx_lib_get_symbol(mx_lib_t lib, const char *symbol);
+
+#endif
\ No newline at end of file
diff --git a/src/dynlink.unix.c b/src/dynlink.unix.c
new file mode 100644
index 0000000..ebdfe5a
--- /dev/null
+++ b/src/dynlink.unix.c
@@ -0,0 +1,36 @@
+#if __unix__
+#include "mx/dynlink.h"
+#include "mx/assert.h"
+#include "dlfcn.h"
+
+#ifdef DEBUG
+    #define RTLD_DEFAULT (RTLD_NOW)
+#else
+    #define RTLD_DEFAULT (RTLD_LAZY)
+#endif
+
+MX_IMPL mx_lib_t mx_lib_open(const char *name)
+{
+    void *plib = dlopen(name, RTLD_DEFAULT);
+    return (mx_lib_t)plib;
+}
+
+MX_IMPL void mx_lib_close(mx_lib_t lib)
+{
+    MX_ASSERT_PTR(lib, "The library must be open.");
+    MX_ASSERT(lib != MX_LIB_SELF, "You cannot close this module.");
+
+    dlclose((void*)lib);
+}
+
+MX_IMPL void *mx_lib_get_symbol(mx_lib_t lib, const char *symbol)
+{
+    MX_ASSERT_PTR(lib, "The library must be open.");
+
+    /* The self library pointer is NULL for dlfunc. */
+    if (lib == MX_LIB_SELF) lib = NULL;
+
+    return dlsym((void*)lib, symbol);
+}
+
+#endif
diff --git a/src/dynlink.win32.c b/src/dynlink.win32.c
new file mode 100644
index 0000000..109f1ab
--- /dev/null
+++ b/src/dynlink.win32.c
@@ -0,0 +1,33 @@
+#if _WIN32
+#include "mx/dynlink.h"
+#include "mx/assert.h"
+#include "windows.h"
+
+MX_IMPL mx_lib_t mx_lib_open(const char *name)
+{
+    HMODULE lib = LoadLibrary(name);
+    return (mx_lib_t)lib;
+}
+
+MX_IMPL void mx_lib_close(mx_lib_t lib)
+{
+    MX_ASSERT_PTR(lib, "The library must be open.");
+    MX_ASSERT(lib != MX_LIB_SELF, "You cannot close this module.");
+
+    FreeLibrary((HMODULE)lib);
+}
+
+MX_IMPL void *mx_lib_get_symbol(mx_lib_t lib, const char *symbol)
+{
+    MX_ASSERT_PTR(lib, "The library must be open.");
+
+    /* The self library pointer is retreived with GetModuleHandle. */
+    if (lib == MX_LIB_SELF)
+    {
+        lib = (mx_lib_t)GetModuleHandle(NULL);
+    }
+
+    return GetProcAddress((HMODULE)lib, symbol);
+}
+
+#endif