-dnl ----------------------------------------------------------------
-dnl Check for multiple precision support
-if test "$ol_with_multiple_precision" != "no" ; then
- ol_have_bignum=no
- ol_have_gmp=no
-
- AC_CHECK_HEADERS(openssl/bn.h bn.h)
- AC_CHECK_HEADERS(openssl/crypto.h crypto.h)
- AC_CHECK_HEADERS( gmp.h )
-
- if test "$ol_with_tls" = "found" ; then
- ol_have_bn_h=no
- ol_have_crypto_h=no
-
- if test "$ac_cv_header_openssl_bn_h" = "yes" \
- -o "$ac_cv_header_bn_h" = "yes" ; then
- ol_have_bn_h=yes
- fi
-
- if test "$ac_cv_header_openssl_crypto_h" = "yes" \
- -o "$ac_cv_header_crypto_h" = "yes" ; then
- ol_have_crypto_h=yes
- fi
-
- if test "$ol_have_bn_h" = "yes" \
- -a "$ol_have_crypto_h" = "yes" ; then
- ol_have_bignum=yes
- fi
- fi
-
- if test $ac_cv_header_gmp_h = yes ; then
- AC_CHECK_LIB(gmp, __gmpz_add_ui, [have_gmp=yes], [have_gmp=no])
- if test $have_gmp = yes ; then
- ol_have_gmp=yes
- fi
- fi
-
- AC_MSG_CHECKING([for multiple precision support])
-
- ol_mp_support="none"
- case "$ol_with_multiple_precision" in
- auto)
- dnl preferred sequence:
- dnl - OpenSSL's BIGNUM (if libssl is already linked)
- dnl - GNU's MP
- dnl - unsigned long
- if test "$ol_have_bignum" = "yes" ; then
- ol_mp_support="bignum"
- else
- if test "$ol_have_gmp" = "yes" ; then
- ol_mp_support="gmp"
- fi
- fi
- ;;
- bignum)
- if test "$ol_have_bignum" != "yes" ; then
- AC_MSG_ERROR([OpenSSL's BIGNUM not available])
- fi
- ol_mp_support="bignum"
- ;;
- gmp)
- if test "$ol_have_gmp" != "yes" ; then
- AC_MSG_ERROR([GMP not available])
- fi
- ol_mp_support="gmp"
- ;;
- yes)
- if test "$ol_have_bignum" = "yes" ; then
- ol_mp_support="bignum"
- elif test "$ol_have_gmp" = "yes" ; then
- ol_mp_support="gmp"
- else
- AC_MSG_ERROR([not available])
- fi
- ;;
- esac
-
- case "$ol_mp_support" in
- bignum)
- AC_DEFINE(HAVE_BIGNUM, 1,
- [define if you have SSLeay or OpenSSL's BIGNUM])
- ;;
- gmp)
- AC_DEFINE(HAVE_GMP, 1, [define if you have -lgmp])
- SLAPD_GMP_LIBS=-lgmp
- ;;
- none)
- ;;
- esac
-
- AC_MSG_RESULT($ol_mp_support)
-fi
-