Remove spurious LDFLAGS for onak linking.

[onak.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index f10db95c27813a430ca12c0f2d70ecf1f89b1597..e41971bfc26f11173138513cc4c39badb315bc52 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,12 +1,31 @@
 AC_PREREQ(2.50)
+AC_INIT([onak],[0.3.0],[noodles-onak@earth.li])
 
-AC_INIT
 AC_CONFIG_HEADER(config.h)
 
 AC_PROG_CC
 
 AC_C_BIGENDIAN
 
+AC_ARG_ENABLE(backend,AC_HELP_STRING([--enable-backend=<backend>],[Choose the backend database to use. Defaults to db3.]), [], [enable_backend="db3"])
+
+AC_MSG_CHECKING([which key database backend to use])
+AC_MSG_RESULT([$enable_backend])
+AC_CHECK_FILE(keydb_$enable_backend.c, ,AC_MSG_ERROR([non existent key database backend $enable_backend]))
+
+if test "x$enable_backend" = "xdb3"
+then
+       AC_CHECK_LIB(db3, db_env_create,,
+               AC_MSG_ERROR([cannot compile DB3 backend without libdb3]))
+else if test "x$enable_backend" = "xpg"
+then
+       AC_CHECK_LIB(pq, PQsetdbLogin,,
+               AC_MSG_ERROR([cannot compile PostgreSQL backend without libpq]))
+fi
+fi
+
+AC_SUBST(DBTYPE, $enable_backend)
+
 AC_CONFIG_FILES(Makefile)
 
 AC_OUTPUT