Update config_linux.h

Author: eregon

lib/cext/include/truffleruby/config_linux.h

@@ -163,18 +163,15 @@
 #define RUBY_FUNC_NONNULL(n,x) __attribute__ ((__nonnull__(n))) x
 #define RUBY_FUNCTION_NAME_STRING __func__
 #define ENUM_OVER_INT 1
-#define HAVE_DECL_SYS_NERR 1
+#define HAVE_DECL_SYS_NERR 0
 #define HAVE_DECL_GETENV 1
 #define SIZEOF_SIZE_T 8
 #define SIZEOF_PTRDIFF_T 8
 #define PRI_SIZE_PREFIX "z"
 #define PRI_PTRDIFF_PREFIX "t"
 #define HAVE_STRUCT_STAT_ST_BLKSIZE 1
-#define HAVE_ST_BLKSIZE 1
 #define HAVE_STRUCT_STAT_ST_BLOCKS 1
-#define HAVE_ST_BLOCKS 1
 #define HAVE_STRUCT_STAT_ST_RDEV 1
-#define HAVE_ST_RDEV 1
 #define SIZEOF_STRUCT_STAT_ST_SIZE SIZEOF_OFF_T
 #define SIZEOF_STRUCT_STAT_ST_BLOCKS SIZEOF_OFF_T
 #define SIZEOF_STRUCT_STAT_ST_INO SIZEOF_LONG
@@ -277,10 +274,15 @@
 #define HAVE_GETGRNAM 1
 #define HAVE_GETGRNAM_R 1
 #define HAVE_GETGROUPS 1
+#define HAVE_GETLOGIN 1
+#define HAVE_GETLOGIN_R 1
 #define HAVE_GETPGID 1
 #define HAVE_GETPGRP 1
 #define HAVE_GETPRIORITY 1
+#define HAVE_GETPWNAM 1
 #define HAVE_GETPWNAM_R 1
+#define HAVE_GETPWUID 1
+#define HAVE_GETPWUID_R 1
 #define HAVE_GETRANDOM 1
 #define HAVE_GETRESGID 1
 #define HAVE_GETRESUID 1
@@ -292,6 +294,7 @@
 #define HAVE_INITGROUPS 1
 #define HAVE_IOCTL 1
 #define HAVE_KILLPG 1
+#define HAVE_LCHMOD 1
 #define HAVE_LCHOWN 1
 #define HAVE_LINK 1
 #define HAVE_LLABS 1