diff --git a/REUSE.toml b/REUSE.toml
index 7823a853bd..431cbb5999 100644
--- a/REUSE.toml
+++ b/REUSE.toml
@@ -43,6 +43,10 @@ path = [
   # checksrc control files
   "docs/examples/.checksrc",
   "lib/.checksrc",
+  "lib/vauth/.checksrc",
+  "lib/vquic/.checksrc",
+  "lib/vssh/.checksrc",
+  "lib/vtls/.checksrc",
   "src/.checksrc",
   "tests/libtest/.checksrc",
 ]
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 90a0343523..851cee293a 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -25,11 +25,14 @@ AUTOMAKE_OPTIONS = foreign nostdinc
 
 CMAKE_DIST = CMakeLists.txt curl_config.h.cmake
 
+CHECKSRC_DIST = .checksrc vauth/.checksrc vquic/.checksrc vssh/.checksrc \
+ vtls/.checksrc
+
 EXTRA_DIST = Makefile.mk config-win32.h config-win32ce.h config-plan9.h \
  config-riscos.h config-mac.h curl_config.h.in config-dos.h libcurl.rc  \
  config-amigaos.h config-win32ce.h config-os400.h setup-os400.h         \
- $(CMAKE_DIST) setup-win32.h .checksrc Makefile.soname optiontable.pl   \
- libcurl.def
+ $(CMAKE_DIST) setup-win32.h Makefile.soname optiontable.pl libcurl.def \
+ $(CHECKSRC_DIST)
 
 lib_LTLIBRARIES = libcurl.la
 
diff --git a/lib/vauth/.checksrc b/lib/vauth/.checksrc
new file mode 100644
index 0000000000..9066946c89
--- /dev/null
+++ b/lib/vauth/.checksrc
@@ -0,0 +1,2 @@
+enable STRERROR
+enable STRNCPY
diff --git a/lib/vquic/.checksrc b/lib/vquic/.checksrc
new file mode 100644
index 0000000000..9066946c89
--- /dev/null
+++ b/lib/vquic/.checksrc
@@ -0,0 +1,2 @@
+enable STRERROR
+enable STRNCPY
diff --git a/lib/vssh/.checksrc b/lib/vssh/.checksrc
new file mode 100644
index 0000000000..9066946c89
--- /dev/null
+++ b/lib/vssh/.checksrc
@@ -0,0 +1,2 @@
+enable STRERROR
+enable STRNCPY
diff --git a/lib/vtls/.checksrc b/lib/vtls/.checksrc
new file mode 100644
index 0000000000..9066946c89
--- /dev/null
+++ b/lib/vtls/.checksrc
@@ -0,0 +1,2 @@
+enable STRERROR
+enable STRNCPY