1 files changed, 81 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 052b856..b56e90f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -51,6 +51,87 @@ LT_INIT([disable-static dlopen])
 AS_IF([test "x$enable_shared" = "xno"],
   [AC_MSG_ERROR([GNUnet works only with shared libraries, sorry])])
 
+# test for GNUnet core
+gnunet=0
+gnunet_conversation=0
+lookin=${prefix}
+GNUNET_CFLAGS=""
+GNUNET_CPPFLAGS=""
+GNUNET_LIBS=""
+AC_MSG_CHECKING(for GNUnet core)
+AC_ARG_WITH(gnunet,
+   [  --with-gnunet=PFX       Base of GNUnet installation],
+   [AC_MSG_RESULT([$with_gnunet])
+    AS_CASE([$with_gnunet],
+      [no],[lookin=""],
+      [yes],[lookin="${prefix}"],
+      [lookin="$with_gnunet"])
+   ],
+   [
+     AC_MSG_RESULT([--with-gnunet not specified])
+     PKG_CHECK_MODULES([GNUNET], [gnunetutil >= 0.18.0], gnunet=1)
+     AC_CHECK_HEADERS([gnunet/gnunet_messenger_service.h],
+     AC_CHECK_LIB([gnunetmessenger], [GNUNET_MESSENGER_connect],
+      [
+        EXT_LIB_PATH="-L${lookin}/lib $EXT_LIB_PATH"
+        if test -d "${lookin}/lib64"; then
+          EXT_LIB_PATH="-L${lookin}/lib64 $EXT_LIB_PATH"
+        fi
+      ]
+      ),,[#include <gnunet/platform.h>]
+     )
+   ]
+)
+
+AS_IF([test "x$gnunet" = "x0" -a ! "x$lookin" = "x"],
+[
+  AC_MSG_CHECKING(for GNUnet util library in $lookin)
+  backup_LIBS="$LIBS"
+  backup_CFLAGS="$CFLAGS"
+  backup_CPPFLAGS="$CPPFLAGS"
+  GNUNET_LIBS="-L${lookin}/lib"
+  if test -d "${lookin}/lib64"; then
+    GNUNET_LIBS="-L${lookin}/lib64 $GNUNET_LIBS"
+  fi
+  GNUNET_CFLAGS="-I${lookin}/include"
+  GNUNET_CPPFLAGS="-I${lookin}/include"
+  LIBS="$GNUNET_LIBS $backup_LIBS"
+  CFLAGS="$GNUNET_CFLAGS $backup_CFLAGS"
+  CPPFLAGS="$GNUNET_CPPFLAGS $backup_CPPFLAGS"
+  AC_CHECK_HEADERS([gnunet/gnunet_util_lib.h],
+    AC_CHECK_LIB([gnunetutil], [GNUNET_xfree_],
+      [
+        gnunet=1
+        EXT_LIB_PATH="-L${lookin}/lib $EXT_LIB_PATH"
+        if test -d "${lookin}/lib64"; then
+          EXT_LIB_PATH="-L${lookin}/lib64 $EXT_LIB_PATH"
+        fi
+
+      ]
+    ),,[#include <gnunet/platform.h>]
+  )
+  AC_CHECK_HEADERS([gnunet/gnunet_messenger_service.h],
+    AC_CHECK_LIB([gnunetmessenger], [GNUNET_MESSENGER_connect],
+      [
+        gnunet_messenger=1
+      ]
+    ),,[#include <gnunet/platform.h>]
+  )
+  LIBS="$backup_LIBS"
+  CFLAGS="$backup_CFLAGS"
+  CPPFLAGS="$backup_CPPFLAGS"
+])
+
+AS_IF([test "x$gnunet" = "x0" || test "x$gnunet_messenger" = "x0" ],
+ [AC_MSG_ERROR([libgnunetchat requires GNUnet])])
+
+
+
+AC_SUBST(GNUNET_CFLAGS)
+AC_SUBST(GNUNET_LIBS)
+CFLAGS="$GNUNET_CFLAGS $CFLAGS"
+LIBS="$GNUNET_LIBS $LIBS"
+
 AC_ARG_ENABLE([debug],
 [  --enable-debug          turn on debugging],
 [case "${enableval}" in