play: Convert com_prev() to lopsub.

[paraslash.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index ffb06934439b807d7e8a49551e65c73e313d23ed..36a1f4bdd88ab90797d2802848eec02b6da70001 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -67,6 +67,10 @@ AC_PATH_PROG([INSTALL], [install])
 test -z "$INSTALL" && AC_MSG_ERROR(
        [The install program is required to build this package])
 
+AC_PATH_PROG([lopsubgen], [lopsubgen])
+test -z "$lopsubgen" && AC_MSG_ERROR(
+       [lopsubgen is required to build this package])
+
 AC_PROG_CC
 AC_PROG_CPP
 
@@ -92,6 +96,22 @@ AC_CHECK_HEADER(osl.h, [], [HAVE_OSL=no])
 AC_CHECK_LIB([osl], [osl_open_table], [], [HAVE_OSL=no])
 LIB_SUBST_FLAGS(osl)
 UNSTASH_FLAGS
+######################################################################## lopsub
+STASH_FLAGS
+LIB_ARG_WITH([lopsub], [-llopsub])
+HAVE_LOPSUB=yes
+AC_CHECK_HEADER(lopsub.h, [], [HAVE_LOPSUB=no])
+AC_CHECK_LIB([lopsub], [lls_merge], [], [HAVE_LOPSUB=yes])
+if test $HAVE_LOPSUB = no; then AC_MSG_ERROR([
+       The lopsub library is required to build this software, but
+       the above checks indicate it is not installed on your system.
+       Run the following command to download a copy.
+               git clone git://git.tuebingen.mpg.de/lopsub.git
+       Install the library, then run this configure script again.
+])
+fi
+LIB_SUBST_FLAGS([lopsub])
+UNSTASH_FLAGS
 ######################################################################## openssl
 STASH_FLAGS
 HAVE_OPENSSL=yes
@@ -99,6 +119,10 @@ LIB_ARG_WITH([openssl], [-lssl -lcrypto])
 AC_CHECK_HEADER(openssl/ssl.h, [], [HAVE_OPENSSL=no])
 AC_CHECK_LIB([crypto], [RAND_bytes], [], [HAVE_OPENSSL=no])
 LIB_SUBST_FLAGS(openssl)
+if test $HAVE_OPENSSL = yes; then
+       AC_CHECK_LIB([crypto], [RSA_set0_key],
+               AC_DEFINE([HAVE_RSA_SET0_KEY], [1], [openssl-1.1]))
+fi
 UNSTASH_FLAGS
 ######################################################################### gcrypt
 STASH_FLAGS