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configure: check gnutls related stuff only if gnutls was found

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This fixes a build issue with old gnutls.
Broken by commit 680d2f49da.

Reported-by: Olga Krishtal <okrishtal@virtuozzo.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2016-11-03 15:38:09 +01:00
parent e8861f6971
commit a55fdc3f25
1 changed files with 35 additions and 33 deletions
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68
m4/virt-gnutls.m4
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@ -20,41 +20,43 @@ dnl
AC_DEFUN([LIBVIRT_CHECK_GNUTLS],[
LIBVIRT_CHECK_PKG([GNUTLS], [gnutls], [2.2.0])
dnl Double probe: gnutls >= 2.12 had a configure option for gcrypt and
dnl gnutls >= 3.0 uses only nettle. Our goal is to avoid gcrypt if we
dnl can prove gnutls uses nettle, but it is a safe fallback to use gcrypt
dnl if we can't prove anything.
if test "$with_gnutls" = "yes" ; then
dnl Double probe: gnutls >= 2.12 had a configure option for gcrypt and
dnl gnutls >= 3.0 uses only nettle. Our goal is to avoid gcrypt if we
dnl can prove gnutls uses nettle, but it is a safe fallback to use gcrypt
dnl if we can't prove anything.
GNUTLS_GCRYPT=
if $PKG_CONFIG --exists 'gnutls >= 3.0'; then
GNUTLS_GCRYPT="no"
else
GNUTLS_GCRYPT="probe"
GNUTLS_GCRYPT=
if $PKG_CONFIG --exists 'gnutls >= 3.0'; then
GNUTLS_GCRYPT="no"
else
GNUTLS_GCRYPT="probe"
fi
if test "$GNUTLS_GCRYPT" = "probe"; then
case $($PKG_CONFIG --libs --static gnutls) in
*gcrypt*) GNUTLS_GCRYPT=yes ;;
*nettle*) GNUTLS_GCRYPT=no ;;
*) GNUTLS_GCRYPT=unknown ;;
esac
fi
if test "$GNUTLS_GCRYPT" = "yes" || test "$GNUTLS_GCRYPT" = "unknown"; then
GNUTLS_LIBS="$GNUTLS_LIBS -lgcrypt"
dnl We're not using gcrypt deprecated features so define
dnl GCRYPT_NO_DEPRECATED to avoid deprecated warnings
GNUTLS_CFLAGS="$GNUTLS_CFLAGS -DGCRYPT_NO_DEPRECATED"
AC_DEFINE_UNQUOTED([WITH_GNUTLS_GCRYPT], 1,
[set to 1 if it is known or assumed that GNUTLS uses gcrypt])
fi
AC_CHECK_HEADERS([gnutls/crypto.h], [], [], [[
#include <gnutls/gnutls.h>
]])
AC_CHECK_FUNC([gnutls_rnd])
AC_CHECK_FUNC([gnutls_cipher_encrypt])
fi
if test "$GNUTLS_GCRYPT" = "probe"; then
case $($PKG_CONFIG --libs --static gnutls) in
*gcrypt*) GNUTLS_GCRYPT=yes ;;
*nettle*) GNUTLS_GCRYPT=no ;;
*) GNUTLS_GCRYPT=unknown ;;
esac
fi
if test "$GNUTLS_GCRYPT" = "yes" || test "$GNUTLS_GCRYPT" = "unknown"; then
GNUTLS_LIBS="$GNUTLS_LIBS -lgcrypt"
dnl We're not using gcrypt deprecated features so define
dnl GCRYPT_NO_DEPRECATED to avoid deprecated warnings
GNUTLS_CFLAGS="$GNUTLS_CFLAGS -DGCRYPT_NO_DEPRECATED"
AC_DEFINE_UNQUOTED([WITH_GNUTLS_GCRYPT], 1,
[set to 1 if it is known or assumed that GNUTLS uses gcrypt])
fi
AC_CHECK_HEADERS([gnutls/crypto.h], [], [], [[
#include <gnutls/gnutls.h>
]])
AC_CHECK_FUNC([gnutls_rnd])
AC_CHECK_FUNC([gnutls_cipher_encrypt])
])
AC_DEFUN([LIBVIRT_RESULT_GNUTLS],[