Fix for compilation with Musl.

Musl only has stub implementations of utmp* functions, and doesn't define _PATH_UTMPX nor _PATH_WTMPX.
davmac314 · May 2, 2019 · be8c80c · be8c80c
1 parent a829fc7
commit be8c80c
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/src/includes/dinit-utmp.h b/src/includes/dinit-utmp.h
@@ -33,11 +33,20 @@
 #endif
 #endif
 
+#if USE_UTMPX
+#include <utmpx.h>
+// Musl has a utmpx.h header but only stub implementations of the functions, and does not define _PATH_UTMPX
+// nor _PATH_WTMPX.
+#if !defined(_PATH_UTMPX) || !defined(_PATH_WTMPX)
+#undef USE_UTMPX
+#define USE_UTMPX 0
+#endif
+#endif
+
 #if USE_UTMPX
 
 #include <cstring>
 
-#include <utmpx.h>
 #include <sys/time.h>
 
 // Set the time for a utmpx record to the current time.