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AC_DEFUN([AX_CHECK_OPENSSL], [
AC_ARG_ENABLE(openssl,
[ --enable-openssl[=DIR] Enable OpenSSL support (DIR optional).
--disable-openssl Disable OpenSSL support. ],
[ cf_enable_openssl=$enableval ],
[ cf_enable_openssl="auto" ])
AC_MSG_CHECKING([for OpenSSL])
if test "$cf_enable_openssl" != "no"; then
cf_openssl_basedir=""
if test "$cf_enable_openssl" != "auto" &&
test "$cf_enable_openssl" != "yes"; then
dnl Support for --enable-openssl=/some/place
cf_openssl_basedir="${cf_enable_openssl}"
else
dnl Do the auto-probe here. Check some common directory paths.
for dirs in /usr/local/ssl /usr/pkg /usr/local /usr/lib /usr/lib/ssl\
/opt /opt/openssl /usr/local/openssl; do
if test -f "${dirs}/include/openssl/opensslv.h"; then
cf_openssl_basedir="${dirs}"
break
fi
done
unset dirs
fi
dnl Now check cf_openssl_found to see if we found anything.
if test ! -z "$cf_openssl_basedir"; then
if test -f "${cf_openssl_basedir}/include/openssl/opensslv.h"; then
CPPFLAGS="-I${cf_openssl_basedir}/include $CPPFLAGS"
LDFLAGS="-L${cf_openssl_basedir}/lib $LDFLAGS"
else
dnl OpenSSL wasn't found in the directory specified. Naughty
dnl administrator...
cf_openssl_basedir=""
fi
else
dnl Check for stock FreeBSD 4.x and 5.x systems, since their files
dnl are in /usr/include and /usr/lib. In this case, we don't want to
dnl change INCLUDES or LIBS, but still want to enable OpenSSL.
dnl We can't do this check above, because some people want two versions
dnl of OpenSSL installed (stock FreeBSD 4.x/5.x and /usr/local/ssl)
dnl and they want /usr/local/ssl to have preference.
if test -f "/usr/include/openssl/opensslv.h"; then
cf_openssl_basedir="/usr"
fi
fi
dnl If we have a basedir defined, then everything is okay. Otherwise,
dnl we have a problem.
if test ! -z "$cf_openssl_basedir"; then
AC_MSG_RESULT([$cf_openssl_basedir])
cf_enable_openssl="yes"
else
AC_MSG_RESULT([not found. Please check your path.])
cf_enable_openssl="no"
fi
unset cf_openssl_basedir
else
dnl If --disable-openssl was specified
AC_MSG_RESULT([disabled])
fi
AS_IF([test "$cf_enable_openssl" != "no"],
[AC_MSG_CHECKING(for OpenSSL 0.9.8m or above)
AC_RUN_IFELSE([
AC_LANG_PROGRAM([
#include <openssl/opensslv.h>
#include <stdlib.h>],
[[ exit(!(OPENSSL_VERSION_NUMBER >= 0x009080dfL)); ]])],
[cf_openssl_version_ok=yes],
[cf_openssl_version_ok=no],
[cf_openssl_version_ok=no])
AS_IF([test "$cf_openssl_version_ok" = "yes"],
[AC_MSG_RESULT(found)
AC_CHECK_LIB(crypto, RSA_free)
AS_IF([test "$ac_cv_lib_crypto_RSA_free" = "yes"],
[AC_CHECK_LIB(ssl, SSL_connect)])
],[AC_MSG_RESULT(no - OpenSSL support disabled)
cf_enable_openssl="no"])])
AM_CONDITIONAL(ENABLE_SSL, [test "$ac_cv_lib_ssl_SSL_connect" = yes])
])
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