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Build: Update visibility.m4 from Gnulib. 

Updating from version 6 -> 8 from upstream. Declarations for variables
and function bodies were added to avoid unnecessary failures with
-Werror.
This commit is contained in:
Jia Tan 2023-10-12 20:12:18 +08:00
parent 5c4bca521e
commit f74f174006
1 changed files with 7 additions and 2 deletions
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9
m4/visibility.m4
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@ -1,5 +1,5 @@
# visibility.m4 serial 6
dnl Copyright (C) 2005, 2008, 2010-2020 Free Software Foundation, Inc.
# visibility.m4 serial 8
dnl Copyright (C) 2005, 2008, 2010-2023 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
@ -58,6 +58,11 @@ AC_DEFUN([gl_VISIBILITY],
extern __attribute__((__visibility__("default"))) int exportedvar;
extern __attribute__((__visibility__("hidden"))) int hiddenfunc (void);
extern __attribute__((__visibility__("default"))) int exportedfunc (void);
void dummyfunc (void);
int hiddenvar;
int exportedvar;
int hiddenfunc (void) { return 51; }
int exportedfunc (void) { return 1225736919; }
void dummyfunc (void) {}
]],
[[]])],