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26 lines
904 B
26 lines
904 B
m4: crypt_xxpg6.m4: Define _DEFAULT_SOURCE for current glibc
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Current glibc no longer implements the CRYPT extension, so it does not
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declare crypt in <unistd.h> in strict standard modes. The check
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defines _XOPEN_SOURCE, which enables one of these modes. Defining
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_DEFAULT_SOURCE as well again makes available the crypt function
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prototype.
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This avoids a configure check result change with compilers which do
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not support implicit function declarations.
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Submitted upstream: <https://github.com/dovecot/core/pull/193>
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diff --git a/m4/crypt_xpg6.m4 b/m4/crypt_xpg6.m4
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index 0085b2ac76..3a288a3713 100644
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--- a/m4/crypt_xpg6.m4
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+++ b/m4/crypt_xpg6.m4
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@@ -6,6 +6,7 @@ AC_DEFUN([DOVECOT_CRYPT_XPG6], [
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#define _XOPEN_SOURCE 4
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#define _XOPEN_SOURCE_EXTENDED 1
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#define _XOPEN_VERSION 4
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+ #define _DEFAULT_SOURCE
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#define _XPG4_2
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#define _XPG6
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#include <unistd.h>
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