4 files changed, 23 insertions, 11 deletions
diff --git a/src/include/skalibs/nsig.h b/src/include/skalibs/nsig.h
index 2cecda9..040be2c 100644
--- a/src/include/skalibs/nsig.h
+++ b/src/include/skalibs/nsig.h
@@ -1,8 +1,12 @@
 /* ISC license. */
 
+/*
+   This header MUST be paired with skalibs/nonposix.h
+   which must be included before system headers.
+*/
+
 #ifndef NSIG_H
 
-#include <skalibs/nonposix.h>
 #include <signal.h>
 
 #define SKALIBS_NSIG 65
diff --git a/src/libstddjb/selfpipe_finish.c b/src/libstddjb/selfpipe_finish.c
index 0635efb..fd9f6c2 100644
--- a/src/libstddjb/selfpipe_finish.c
+++ b/src/libstddjb/selfpipe_finish.c
@@ -3,13 +3,14 @@
 /* MT-unsafe */
 
 #include <skalibs/sysdeps.h>
+
+#ifdef SKALIBS_HASSIGNALFD
+
 #include <signal.h>
 #include <skalibs/djbunix.h>
 #include "selfpipe-internal.h"
 #include <skalibs/selfpipe.h>
 
-#ifdef SKALIBS_HASSIGNALFD
-
 void selfpipe_finish (void)
 {
   sigprocmask(SIG_UNBLOCK, &selfpipe_caught, 0) ;
@@ -20,8 +21,13 @@ void selfpipe_finish (void)
 
 #else
 
+#include <skalibs/nonposix.h>
+#include <signal.h>
 #include <skalibs/sig.h>
 #include <skalibs/nsig.h>
+#include <skalibs/djbunix.h>
+#include "selfpipe-internal.h"
+#include <skalibs/selfpipe.h>
 
 void selfpipe_finish (void)
 {
diff --git a/src/libstddjb/selfpipe_trapset.c b/src/libstddjb/selfpipe_trapset.c
index 33ac861..519e37b 100644
--- a/src/libstddjb/selfpipe_trapset.c
+++ b/src/libstddjb/selfpipe_trapset.c
@@ -1,16 +1,14 @@
 /* ISC license. */
 
-/* MT-unsafe */
-
-#include <errno.h>
-#include <signal.h>
 #include <skalibs/sysdeps.h>
-#include "selfpipe-internal.h"
-#include <skalibs/selfpipe.h>
 
 #ifdef SKALIBS_HASSIGNALFD
 
+#include <errno.h>
+#include <signal.h>
 #include <sys/signalfd.h>
+#include <skalibs/selfpipe.h>
+#include "selfpipe-internal.h"
 
 int selfpipe_trapset (sigset_t const *set)
 {
@@ -30,8 +28,13 @@ int selfpipe_trapset (sigset_t const *set)
 
 #else
 
+#include <skalibs/nonposix.h>
+#include <errno.h>
+#include <signal.h>
 #include <skalibs/sig.h>
 #include <skalibs/nsig.h>
+#include <skalibs/selfpipe.h>
+#include "selfpipe-internal.h"
 
 int selfpipe_trapset (sigset_t const *set)
 {
diff --git a/src/libstddjb/sig_stack.c b/src/libstddjb/sig_stack.c
index 5897f63..f682971 100644
--- a/src/libstddjb/sig_stack.c
+++ b/src/libstddjb/sig_stack.c
@@ -1,7 +1,6 @@
 /* ISC license. */
 
-/* MT-unsafe */
-
+#include <skalibs/nonposix.h>
 #include <errno.h>
 #include <signal.h>
 #include <skalibs/sig.h>