Backport getline fix for AIX to Mono CoreFX

1 files changed, 5 insertions, 5 deletions

diff --git a/src/Native/Unix/System.Native/pal_io.c b/src/Native/Unix/System.Native/pal_io.c
index acb0097347..5a5fb824e6 100644
--- a/src/Native/Unix/System.Native/pal_io.c
+++ b/src/Native/Unix/System.Native/pal_io.c
@@ -2,11 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-#ifdef _AIX
-// For getline (declare this before stdio)
-#define _GETDELIM 1
-#endif
-
 #include "pal_compiler.h"
 #include "pal_config.h"
 #include "pal_errno.h"
@@ -47,6 +42,11 @@
 // Somehow, AIX mangles the definition for this behind a C++ def
 // Redeclare it here
 extern int     getpeereid(int, uid_t *__restrict__, gid_t *__restrict__);
+// This function declaration is hidden behind `_XOPEN_SOURCE=700`, but we need
+// `_ALL_SOURCE` to build the runtime, and that resets that definition to 600.
+// Instead of trying to wrangle ifdefs in system headers with more definitions,
+// just declare it here.
+extern ssize_t  getline(char **, size_t *, FILE *);
 #endif
 
 #if HAVE_STAT64