diff --git a/ChangeLog b/ChangeLog
index c3e24097..d7e2c7b3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+1999-02-17  Alexandre Oliva  <oliva@dcc.unicamp.br>
+
+	* libltdl/ltdl.c (lt_dlmalloc, lt_dlfree): SunOS' cc can't cope
+	with argument lists, we __P even in the definition
+
 1999-02-15  Thomas Tanner  <tanner@gmx.de>
 
 	* cdemo/Makefile.am: renamed *foo1 to *foo, removed $(MATH_LIB)
diff --git a/libltdl/ltdl.c b/libltdl/ltdl.c
index 5a851a58..fcf060e9 100644
--- a/libltdl/ltdl.c
+++ b/libltdl/ltdl.c
@@ -99,8 +99,8 @@ const lt_dlsymlist lt_preloaded_symbols[1] = { { 0, 0 } };
 
 static const char *last_error = 0;
 
-lt_ptr_t (*lt_dlmalloc)(size_t size) = malloc;
-void	(*lt_dlfree)(lt_ptr_t ptr) = free;
+lt_ptr_t (*lt_dlmalloc) __P((size_t size)) = malloc;
+void	 (*lt_dlfree)  __P((lt_ptr_t ptr)) = free;
 
 typedef struct lt_dltype_t {
 	struct lt_dltype_t *next;