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Use libbsd when available 

Use the libbsd (https://libbsd.freedesktop.org/) overlay to transparently
use the bsd compatibility layer without needing any actual code changes.

Remove now unnecessary direct access to libbsd includes. And remove
checks for unused functions.
This commit is contained in:
Guillem Jover 2016-06-09 01:55:07 +02:00
parent 15a2c1b591
commit 1fb763761b
1 changed files with 10 additions and 6 deletions
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16
configure.ac
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@ -238,7 +238,7 @@ if grep VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "LibreSSL" >/dev/
AC_DEFINE([HAVE_LIBRESSL], [1], [Define if we have LibreSSL])
# libressl provides these compat functions, but they may also be
# declared by the OS in libc. See if they have been declared.
AC_CHECK_DECLS([strlcpy,strlcat,arc4random,arc4random_uniform,reallocarray])
AC_CHECK_DECLS([strlcpy,arc4random,arc4random_uniform])
else
AC_MSG_RESULT([no])
fi
@ -928,7 +928,7 @@ dnl ----- Start of "Things needed for gldns" section
dnl -----
dnl ---------------------------------------------------------------------------
AC_CHECK_HEADERS([stdarg.h stdint.h netinet/in.h arpa/inet.h netdb.h sys/socket.h time.h sys/time.h bsd/string.h sys/select.h],,, [AC_INCLUDES_DEFAULT])
AC_CHECK_HEADERS([stdarg.h stdint.h netinet/in.h arpa/inet.h netdb.h sys/socket.h time.h sys/time.h sys/select.h],,, [AC_INCLUDES_DEFAULT])
dnl Check the printf-format attribute (if any)
dnl result in HAVE_ATTR_FORMAT.
@ -967,6 +967,14 @@ AC_MSG_RESULT($ac_cv_c_unused_attribute)
if test $ac_cv_c_unused_attribute = yes; then
AC_DEFINE(HAVE_ATTR_UNUSED, 1, [Whether the C compiler accepts the "unused" attribute])
fi
# Check for libbsd, so that the next function checks pick it as their
# system implementation.
PKG_CHECK_MODULES([LIBBSD],[libbsd-overlay],[
LIBS="$LIBS $LIBBSD_LIBS"
CFLAGS="$CFLAGS $LIBBSD_CFLAGS"
],[
AC_MSG_WARN([libbsd not found or usable; using embedded code instead])
])
AC_CHECK_DECLS([strlcpy,arc4random,arc4random_uniform])
AC_REPLACE_FUNCS(inet_pton)
AC_REPLACE_FUNCS(inet_ntop)
@ -1050,10 +1058,6 @@ AH_BOTTOM([
#include <assert.h>
#include <string.h>
#ifdef HAVE_BSD_STRING_H
#include <bsd/string.h>
#endif
/* the version of the windows API enabled */
#ifndef WINVER
#define WINVER 0x0600 // 0x0502