diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 934733d66b8..53acb8b33da 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2019-06-18  Tom de Vries  <tdevries@suse.de>
+
+	* config/nvptx/crt0.c (__main): Declare.
+
 2019-06-17  Matthew Green  <mrg@eterna.com.au>
 	    Maya Rashish  <coypu@sdf.org>
 
diff --git a/libgcc/config/nvptx/crt0.c b/libgcc/config/nvptx/crt0.c
index 097193c708e..b3bf1475fa3 100644
--- a/libgcc/config/nvptx/crt0.c
+++ b/libgcc/config/nvptx/crt0.c
@@ -32,7 +32,9 @@ void *__nvptx_stacks[32] __attribute__((shared,nocommon));
 /* Likewise for -muniform-simt.  */
 unsigned __nvptx_uni[32] __attribute__((shared,nocommon));
 
-void __attribute__((kernel))
+extern void __main (int *, int, void **) __attribute__((kernel));
+
+void
 __main (int *rval_ptr, int argc, void **argv)
 {
   __exitval_ptr = rval_ptr;