diff --git a/cfg/posix.cfg b/cfg/posix.cfg
index a66e02109086..ddc6c508eb26 100644
--- a/cfg/posix.cfg
+++ b/cfg/posix.cfg
@@ -5767,6 +5767,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
       <not-bool/>
     </arg>
   </function>
+  <define name="SA_SIGINFO" value="4"/>
   <!-- http://pubs.opengroup.org/onlinepubs/9699919799/functions/sigaltstack.html -->
   <!-- int sigaltstack(const stack_t *restrict ss, stack_t *restrict oss); -->
   <function name="sigaltstack">
diff --git a/cfg/std.cfg b/cfg/std.cfg
index 774e4dbf1c7d..c4eca0dfdff2 100644
--- a/cfg/std.cfg
+++ b/cfg/std.cfg
@@ -9055,14 +9055,15 @@ initializer list (7) string& replace (const_iterator i1, const_iterator i2, init
   <podtype name="std::atomic_ptrdiff_t"/>
   <podtype name="std::atomic_intmax_t"/>
   <podtype name="std::atomic_uintmax_t"/>
-  <!-- https://en.cppreference.com/w/c/program/SIG_types
-        Values are in alignment with posix.cfg -->
+  <!-- https://en.cppreference.com/w/c/program/SIG_types -->
   <define name="SIGTERM" value="15"/>
   <define name="SIGSEGV" value="11"/>
   <define name="SIGINT" value="2"/>
   <define name="SIGKILL" value="9"/>
   <define name="SIGABRT" value="6"/>
   <define name="SIGFPE" value="8"/>
+  <!-- https://en.cppreference.com/w/c/program/SIG_strategies -->
+  <define name="SIG_DFL" value="0"/>
   <!-- http://www.cplusplus.com/reference/cstdio/fseek/ -->
   <define name="SEEK_CUR" value="1"/>
   <define name="SEEK_END" value="2"/>
@@ -9074,4 +9075,6 @@ initializer list (7) string& replace (const_iterator i1, const_iterator i2, init
   <define name="FE_DIVBYZERO" value="8"/>
   <define name="FE_INVALID" value="16"/>
   <define name="FE_ALL_EXCEPT" value="31"/>
+  <!-- https://en.cppreference.com/w/c/io -->
+  <define name="EOF" value="-1"/>
 </def>