~iheino+ub/+junk/nut-upsconf-docfix

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

])