diff --git a/CMakeLists.txt b/CMakeLists.txt
index c1a838a..88e94e6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -51,6 +51,10 @@ add_library(hiload SHARED
   src/logger/sc_log.c
 )
 
+target_compile_options(hiload PRIVATE
+    $<$<C_COMPILER_ID:GNU>:-Wall -Wextra>
+    $<$<C_COMPILER_ID:Clang>:-Weverything>
+)
 
 target_link_libraries(hiload dl)
 
@@ -86,6 +90,11 @@ add_library(auditor-x86_64 SHARED
   src/auditor/auditor-x86_64.c
 )
 
+target_compile_options(hiload PRIVATE
+    $<$<C_COMPILER_ID:GNU>:-Wall -Wextra>
+    $<$<C_COMPILER_ID:Clang>:-Weverything>
+)
+
 install(TARGETS auditor-x86_64
   EXPORT auditor-x86_64Targets
   ARCHIVE DESTINATION lib
diff --git a/src/files.c b/src/files.c
index 9173f49..f067e10 100644
--- a/src/files.c
+++ b/src/files.c
@@ -4,7 +4,7 @@
 #include "logger/logger.h"
 
 const char *hi_file_to_str_dyn(const char *filename) {
-  size_t n = 0;
+
   const char *s = hi_string_from_file_dyn(filename, 0, 0);
   if (!s) {
     sc_log_error("Failed to read file: %s\n", filename);
diff --git a/src/filewatcher/filewatcher.c b/src/filewatcher/filewatcher.c
index a04e1bb..3053520 100644
--- a/src/filewatcher/filewatcher.c
+++ b/src/filewatcher/filewatcher.c
@@ -9,6 +9,7 @@
 #include <time.h>
 #include <unistd.h>
 
+#include "types.h"
 #include "array/array.h"
 #include "common.h"
 #include "logger/logger.h"
@@ -66,14 +67,6 @@ static hiFileEvent create_file_event(const struct inotify_event *event) {
   return hievent;
 }
 
-static hiFileEvent copy_file_event(const hiFileEvent *event) {
-  hiFileEvent cpy = *event;
-  // Copy the file string, so this can be destroyed without destroying the
-  // original
-  cpy.file = strdup(event->file);
-  return cpy;
-}
-
 void hi_file_event_free(hiFileEvent *event) {
   if (event) {
     free((void *)event->file);
@@ -108,7 +101,7 @@ static HiloadResult file_events_init(hiFileEvents *events) {
 
 static void file_events_destroy(hiFileEvents *events) {
   if (events) {
-    for (int i = 0; i < sc_array_size(&events->events); ++i) {
+    for (size_t i = 0; i < sc_array_size(&events->events); ++i) {
       hi_file_event_free(&sc_array_at(&events->events, i));
     }
     sc_array_term(&events->events);
@@ -170,7 +163,7 @@ static HiloadResult watch_path_remove(hiWatchPaths *paths, const char *path) {
 
   bool found = false;
   {
-    for (int i = 0; i < sc_array_size(&paths->watches); ++i) {
+    for (size_t i = 0; i < sc_array_size(&paths->watches); ++i) {
       WatchPath *wp = &sc_array_at(&paths->watches, i);
       if (strcmp(wp->path, path) == 0) {
         watch_path_destroy(paths->fd, wp);
@@ -196,7 +189,7 @@ static HiloadResult watch_paths_init(hiWatchPaths *paths) {
 
 static void watch_paths_destroy(hiWatchPaths *paths) {
   if (paths) {
-    for (int i = 0; i < sc_array_size(&paths->watches); i++) {
+    for (size_t i = 0; i < sc_array_size(&paths->watches); i++) {
       WatchPath *wp = &sc_array_at(&paths->watches, i);
       watch_path_destroy(paths->fd, wp);
     }
diff --git a/src/hiload.c b/src/hiload.c
index 2d4168b..9af2f3d 100644
--- a/src/hiload.c
+++ b/src/hiload.c
@@ -10,6 +10,7 @@
 #include "types.h"
 
 #include <assert.h>
+#include <stddef.h>
 #include <dlfcn.h>
 #include <libdwarf/libdwarf.h>
 #include <libelf.h>
@@ -62,7 +63,7 @@ static int gather_module_infos_callback(struct dl_phdr_info *info, size_t size,
   // Store the module name
   const char *modname = info->dlpi_name;
   sc_array_add(&infos->names, strdup(modname));
-  for (int i = 0; i < sc_array_size(&context.enabled_modules); i++) {
+  for (size_t i = 0; i < sc_array_size(&context.enabled_modules); i++) {
 
     if (hi_path_has_filename(modname,
                              sc_array_at(&context.enabled_modules, i))) {
@@ -225,7 +226,7 @@ void hi_print_module_infos() {
     sc_log_debug("  address: %p\n", sc_array_at(&modules->addresses, i));
 
     const SymbolInfos *symbols = &sc_array_at(&modules->symbols, i);
-    for (int j = 0; j < sc_array_size(&symbols->names); j++) {
+    for (size_t j = 0; j < sc_array_size(&symbols->names); j++) {
       const void *addr = sc_array_at(&symbols->addresses, j);
       const char *name = sc_array_at(&symbols->names, j);
       sc_log_debug("  %p: %s\n", addr, name);
@@ -235,7 +236,7 @@ void hi_print_module_infos() {
   }
 }
 
-int hi_init(unsigned n, const char *enabled_modules[n]) {
+int hi_init(unsigned n, const char **enabled_modules) {
   assert(!module_infos);
 
   if (sc_log_init() != 0) {