diff --git a/subprojects/cextras.wrap b/subprojects/cextras.wrap
index 89da79d5..3466c916 100644
--- a/subprojects/cextras.wrap
+++ b/subprojects/cextras.wrap
@@ -1,6 +1,6 @@
 [wrap-git]
 directory = cextras
-revision = f3478d1e00d38846af03bd776d92336fbcf6e1f7
+revision = d063e11e5e3dd6fb1f9486f2ffa29c6b4e4a00be
 url = https://github.com/Gottox/cextras.git
 depth = 1
 
diff --git a/tools/meson.build b/tools/meson.build
index cb1fa7f9..c2c6a0f3 100644
--- a/tools/meson.build
+++ b/tools/meson.build
@@ -10,6 +10,11 @@ tool_sources = [
     'src/unpack.c',
 ]
 
+tool_dependencies = [
+    libsqsh_dep,
+    cextras_dep,
+]
+
 c_args = ['-DVERSION="@0@"'.format(meson.project_version())]
 
 tools = {}
@@ -21,7 +26,7 @@ foreach src : tool_sources
         c_args: c_args,
         include_directories: tools_private_include,
         install: not meson.is_subproject(),
-        dependencies: libsqsh_dep,
+        dependencies: tool_dependencies,
     )
     tools += {tool_name: tool}
 endforeach
@@ -33,7 +38,7 @@ if fuse3_dep.found()
         c_args: c_args,
         include_directories: tools_private_include,
         install: not meson.is_subproject(),
-        dependencies: [libsqsh_dep, fuse3_dep],
+        dependencies: tool_dependencies + [fuse3_dep],
     )
     tools += {'sqshfs': tool}
 endif
@@ -50,7 +55,7 @@ if fuse2_dep.found()
         c_args: c_args,
         include_directories: tools_private_include,
         install: not meson.is_subproject() and not fuse3_dep.found(),
-        dependencies: [libsqsh_dep, fuse2_dep],
+        dependencies: tool_dependencies + [fuse2_dep],
     )
     tools += {'sqshfs2': tool}
 endif
diff --git a/tools/src/unpack.c b/tools/src/unpack.c
index c7885eb8..613f8739 100644
--- a/tools/src/unpack.c
+++ b/tools/src/unpack.c
@@ -33,10 +33,10 @@
 
 #include <sqshtools_common.h>
 
+#include <cextras/concurrency.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <libgen.h>
-#include <semaphore.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -48,7 +48,7 @@
 typedef int (*extract_fn)(
 		const char *, enum SqshFileType, const struct SqshFile *);
 
-sem_t file_descriptor_sem;
+struct CxSemaphore file_descriptor_sem;
 size_t extracted_files = 0;
 bool do_chown = false;
 bool verbose = false;
@@ -189,7 +189,7 @@ extract_file_after(
 	fclose(stream);
 	rv = update_metadata(data->path, file);
 out:
-	sem_post(&file_descriptor_sem);
+	cx_semaphore_post(&file_descriptor_sem);
 	if (rv < 0) {
 		sqsh_perror(rv, data->path);
 	}
@@ -214,7 +214,7 @@ extract_file(const char *path, const struct SqshFile *file) {
 	}
 	strcpy(data->tmp_filename, ".sqsh-unpack-XXXXXX");
 
-	rv = sem_wait(&file_descriptor_sem);
+	rv = cx_semaphore_wait(&file_descriptor_sem);
 	if (rv < 0) {
 		rv = -errno;
 		perror(path);
@@ -508,9 +508,9 @@ main(int argc, char *argv[]) {
 		goto out;
 	}
 	// Leave some file descriptors for the rest of the system
-	rv = sem_init(&file_descriptor_sem, 0, limits.rlim_cur - 32);
+	rv = cx_semaphore_init(&file_descriptor_sem, limits.rlim_cur - 32);
 	if (rv < 0) {
-		perror("sem_init");
+		perror("cx_semaphore_init");
 		rv = EXIT_FAILURE;
 		goto out;
 	}
@@ -552,7 +552,7 @@ main(int argc, char *argv[]) {
 		rv = extract_all(target_path, src_root, extract_second_pass);
 	}
 out:
-	sem_destroy(&file_descriptor_sem);
+	cx_semaphore_destroy(&file_descriptor_sem);
 	sqsh_threadpool_free(threadpool);
 	sqsh_close(src_root);
 	sqsh_archive_close(sqsh);