77 lines
2.2 KiB
Plaintext
77 lines
2.2 KiB
Plaintext
dnl Check for OpenSSL (LIBOPENSSL) compiler flags. On success, set
|
|
dnl nut_have_openssl="yes" and nut_ssl_lib="OpenSSL", and define WITH_SSL,
|
|
dnl WITH_OPENSSL, LIBSSL_CFLAGS and LIBSSL_LIBS. On failure, set
|
|
dnl nut_have_libssl="no".
|
|
dnl This macro can be run multiple times, but will do the checking only once.
|
|
|
|
AC_DEFUN([NUT_CHECK_LIBOPENSSL],
|
|
[
|
|
if test -z "${nut_have_libopenssl_seen}"; then
|
|
nut_have_libopenssl_seen=yes
|
|
|
|
dnl save CFLAGS and LIBS
|
|
CFLAGS_ORIG="${CFLAGS}"
|
|
LIBS_ORIG="${LIBS}"
|
|
|
|
AC_MSG_CHECKING(for OpenSSL version via pkg-config)
|
|
OPENSSL_VERSION="`pkg-config --silence-errors --modversion openssl 2>/dev/null`"
|
|
if test "$?" = "0" -a -n "${OPENSSL_VERSION}"; then
|
|
CFLAGS="`pkg-config --silence-errors --cflags openssl 2>/dev/null`"
|
|
LIBS="`pkg-config --silence-errors --libs openssl 2>/dev/null`"
|
|
else
|
|
OPENSSL_VERSION="none"
|
|
CFLAGS=""
|
|
LIBS="-lssl -lcrypto"
|
|
fi
|
|
AC_MSG_RESULT(${OPENSSL_VERSION} found)
|
|
|
|
dnl allow overriding OpenSSL settings if the user knows best
|
|
AC_MSG_CHECKING(for OpenSSL cflags)
|
|
AC_ARG_WITH(openssl-includes,
|
|
AS_HELP_STRING([@<:@--with-openssl-includes=CFLAGS@:>@], [include flags for the OpenSSL library]),
|
|
[
|
|
case "${withval}" in
|
|
yes|no)
|
|
AC_MSG_ERROR(invalid option --with(out)-openssl-includes - see docs/configure.txt)
|
|
;;
|
|
*)
|
|
CFLAGS="${withval}"
|
|
;;
|
|
esac
|
|
], [])
|
|
AC_MSG_RESULT([${CFLAGS}])
|
|
|
|
AC_MSG_CHECKING(for OpenSSL ldflags)
|
|
AC_ARG_WITH(openssl-libs,
|
|
AS_HELP_STRING([@<:@--with-openssl-libs=LIBS@:>@], [linker flags for the OpenSSL library]),
|
|
[
|
|
case "${withval}" in
|
|
yes|no)
|
|
AC_MSG_ERROR(invalid option --with(out)-openssl-libs - see docs/configure.txt)
|
|
;;
|
|
*)
|
|
LIBS="${withval}"
|
|
;;
|
|
esac
|
|
], [])
|
|
AC_MSG_RESULT([${LIBS}])
|
|
|
|
dnl check if openssl is usable
|
|
AC_CHECK_HEADERS(openssl/ssl.h, [nut_have_openssl=yes], [nut_have_openssl=no], [AC_INCLUDES_DEFAULT])
|
|
AC_CHECK_FUNCS(SSL_library_init, [], [nut_have_openssl=no])
|
|
|
|
if test "${nut_have_openssl}" = "yes"; then
|
|
nut_with_ssl="yes"
|
|
nut_ssl_lib="(OpenSSL)"
|
|
AC_DEFINE(WITH_SSL, 1, [Define to enable SSL support])
|
|
AC_DEFINE(WITH_OPENSSL, 1, [Define to enable SSL support using OpenSSL])
|
|
LIBSSL_CFLAGS="${CFLAGS}"
|
|
LIBSSL_LIBS="${LIBS}"
|
|
fi
|
|
|
|
dnl restore original CFLAGS and LIBS
|
|
CFLAGS="${CFLAGS_ORIG}"
|
|
LIBS="${LIBS_ORIG}"
|
|
fi
|
|
])
|