mirror of https://github.com/getdnsapi/getdns.git
165 lines
6.3 KiB
Plaintext
165 lines
6.3 KiB
Plaintext
# Taken from acx_nlnetlabs.m4 - common macros for configure checks
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# Copyright 2009, Wouter Wijngaards, NLnet Labs.
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# BSD licensed.
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#
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dnl Add a -R to the RUNTIME_PATH. Only if rpath is enabled and it is
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dnl an absolute path.
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dnl $1: the pathname to add.
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AC_DEFUN([ACX_RUNTIME_PATH_ADD], [
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if test "x$enable_rpath" = xyes; then
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if echo "$1" | grep "^/" >/dev/null; then
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RUNTIME_PATH="$RUNTIME_PATH -R$1"
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fi
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fi
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])
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dnl Common code for both ACX_WITH_SSL and ACX_WITH_SSL_OPTIONAL
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dnl Takes one argument; the withval checked in those 2 functions
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dnl sets up the environment for the given openssl path
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AC_DEFUN([ACX_SSL_CHECKS], [
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withval=$1
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if test x_$withval != x_no; then
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AC_MSG_CHECKING(for SSL)
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if test x_$withval = x_ -o x_$withval = x_yes; then
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withval="/usr/local/ssl /usr/lib/ssl /usr/ssl /usr/pkg /usr/local /opt/local /usr/sfw /usr"
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fi
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for dir in $withval; do
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ssldir="$dir"
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if test -f "$dir/include/openssl/ssl.h"; then
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found_ssl="yes"
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AC_DEFINE_UNQUOTED([HAVE_SSL], [], [Define if you have the SSL libraries installed.])
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dnl assume /usr/include is already in the include-path.
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if test "$ssldir" != "/usr"; then
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CPPFLAGS="$CPPFLAGS -I$ssldir/include"
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LIBSSL_CPPFLAGS="$LIBSSL_CPPFLAGS -I$ssldir/include"
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fi
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break;
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fi
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done
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if test x_$found_ssl != x_yes; then
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AC_MSG_ERROR(Cannot find the SSL libraries in $withval)
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else
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AC_MSG_RESULT(found in $ssldir)
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HAVE_SSL=yes
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dnl assume /usr is already in the lib and dynlib paths.
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if test "$ssldir" != "/usr" -a "$ssldir" != ""; then
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LDFLAGS="$LDFLAGS -L$ssldir/lib"
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LIBSSL_LDFLAGS="$LIBSSL_LDFLAGS -L$ssldir/lib"
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ACX_RUNTIME_PATH_ADD([$ssldir/lib])
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fi
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AC_MSG_CHECKING([for HMAC_Update in -lcrypto])
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LIBS="-lssl -lcrypto $LIBS"
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LIBSSL_LIBS="-lssl -lcrypto $LIBSSL_LIBS"
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AC_TRY_LINK(, [
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int HMAC_Update(void);
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(void)HMAC_Update();
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], [
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AC_DEFINE([HAVE_HMAC_UPDATE], 1,
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[If you have HMAC_Update])
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AC_MSG_RESULT(yes)
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], [
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AC_MSG_RESULT(no)
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# check if -lwsock32 or -lgdi32 are needed.
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BAKLIBS="$LIBS"
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BAKSSLLIBS="$LIBSSL_LIBS"
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LIBS="$LIBS -lgdi32"
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LIBSSL_LIBS="$LIBSSL_LIBS -lgdi32"
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AC_MSG_CHECKING([if -lcrypto needs -lgdi32])
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AC_TRY_LINK([], [
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int HMAC_Update(void);
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(void)HMAC_Update();
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],[
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AC_DEFINE([HAVE_HMAC_UPDATE], 1,
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[If you have HMAC_Update])
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AC_MSG_RESULT(yes)
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],[
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AC_MSG_RESULT(no)
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LIBS="$BAKLIBS"
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LIBSSL_LIBS="$BAKSSLLIBS"
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LIBS="$LIBS -ldl"
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LIBSSL_LIBS="$LIBSSL_LIBS -ldl"
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AC_MSG_CHECKING([if -lcrypto needs -ldl])
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AC_TRY_LINK([], [
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int HMAC_Update(void);
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(void)HMAC_Update();
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],[
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AC_DEFINE([HAVE_HMAC_UPDATE], 1,
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[If you have HMAC_Update])
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AC_MSG_RESULT(yes)
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],[
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AC_MSG_RESULT(no)
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AC_MSG_ERROR([OpenSSL found in $ssldir, but version 0.9.7 or higher is required])
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])
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])
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])
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fi
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AC_SUBST(HAVE_SSL)
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AC_SUBST(RUNTIME_PATH)
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fi
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AC_CHECK_HEADERS([openssl/ssl.h],,, [AC_INCLUDES_DEFAULT])
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AC_CHECK_HEADERS([openssl/err.h],,, [AC_INCLUDES_DEFAULT])
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AC_CHECK_HEADERS([openssl/rand.h],,, [AC_INCLUDES_DEFAULT])
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dnl TLS v1.2 requires OpenSSL 1.0.1
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AC_CHECK_FUNC(TLSv1_2_client_method,AC_DEFINE([HAVE_TLS_v1_2], [1],
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[Define if you have libssl with tls 1.2]),[AC_MSG_WARN([Cannot find TLSv1_2_client_method in libssl library. TLS will not be available.])])
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dnl Native OpenSSL hostname verification requires OpenSSL 1.0.2
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AC_CHECK_FUNC(SSL_CTX_get0_param,AC_DEFINE([HAVE_SSL_HN_AUTH], [1],
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[Define if you have libssl with host name verification]),[AC_MSG_WARN([Cannot find SSL_CTX_get0_param in libssl library. TLS hostname verification will not be available.])])
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])
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dnl Check for SSL, where SSL is mandatory
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dnl Adds --with-ssl option, searches for openssl and defines HAVE_SSL if found
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dnl Setup of CPPFLAGS, CFLAGS. Adds -lcrypto to LIBS.
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dnl Checks main header files of SSL.
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dnl
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AC_DEFUN([ACX_WITH_SSL],
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[
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AC_ARG_WITH(ssl, AC_HELP_STRING([--with-ssl=pathname],
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[enable SSL (will check /usr/local/ssl
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/usr/lib/ssl /usr/ssl /usr/pkg /usr/local /opt/local /usr/sfw /usr)]),[
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],[
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withval="yes"
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])
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if test x_$withval = x_no; then
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AC_MSG_ERROR([Need SSL library to do digital signature cryptography])
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fi
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ACX_SSL_CHECKS($withval)
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])dnl End of ACX_WITH_SSL
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dnl Check for SSL, where ssl is optional (--without-ssl is allowed)
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dnl Adds --with-ssl option, searches for openssl and defines HAVE_SSL if found
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dnl Setup of CPPFLAGS, CFLAGS. Adds -lcrypto to LIBS.
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dnl Checks main header files of SSL.
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dnl
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AC_DEFUN([ACX_WITH_SSL_OPTIONAL],
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[
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AC_ARG_WITH(ssl, AC_HELP_STRING([--with-ssl=pathname],
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[enable SSL (will check /usr/local/ssl
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/usr/lib/ssl /usr/ssl /usr/pkg /usr/local /opt/local /usr/sfw /usr)]),[
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],[
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withval="yes"
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])
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ACX_SSL_CHECKS($withval)
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])dnl End of ACX_WITH_SSL_OPTIONAL
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dnl Setup to use -lssl
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dnl To use -lcrypto, use the ACX_WITH_SSL setup (before this one).
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AC_DEFUN([ACX_LIB_SSL],
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[
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# check if libssl needs libdl
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BAKLIBS="$LIBS"
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LIBS="-lssl $LIBS"
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AC_MSG_CHECKING([if libssl needs libdl])
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AC_TRY_LINK_FUNC([SSL_CTX_new], [
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AC_MSG_RESULT([no])
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LIBS="$BAKLIBS"
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] , [
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AC_MSG_RESULT([yes])
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LIBS="$BAKLIBS"
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AC_SEARCH_LIBS([dlopen], [dl])
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]) ])dnl End of ACX_LIB_SSL
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