use new arrow shortcuts for compatibility reasons (will be removed later)

[simgear.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 66732599ff454d41ed97f9b901b98f963201e756..83040536a7920ba735fc8de2d7f40b62fdd7634b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -268,6 +268,7 @@ LIBS="$base_LIBS"
 
 dnl check for OpenAL libraries
 OPENAL_OK="no"
+ALUT_OK="no"
 case "${host}" in
 *-*-cygwin* | *-*-mingw32*)
     dnl CygWin under Windoze.
@@ -278,6 +279,7 @@ case "${host}" in
     LIBS="$LIBS -lwinmm -ldsound -ldxguid -lole32"
     openal_LIBS="$LIBS"
     OPENAL_OK="$ac_cv_search_alGenBuffers"
+    ALUT_OK="$ac_cv_search_alutInit"
     ;;
 
 *-apple-darwin*)
@@ -287,6 +289,7 @@ case "${host}" in
     openal_LIBS="$LIBS"
     # not sure how to test if OpenAL exists on MacOS (does it come by default?)
     OPENAL_OK="yes"
+    ALUT_OK="yes"
     ;;
 
 *)
@@ -297,6 +300,7 @@ case "${host}" in
     AC_SEARCH_LIBS(alGenBuffers, openal)
     AC_SEARCH_LIBS(alutInit, [ alut openal ] )
     OPENAL_OK="$ac_cv_search_alGenBuffers"
+    ALUT_OK="$ac_cv_search_alutInit"
     openal_LIBS="$LIBS"
     LIBS=$save_LIBS
     ;;
@@ -314,6 +318,19 @@ if test "$OPENAL_OK" == "no"; then
     exit
 fi
 
+if test "$ALUT_OK" == "no"; then
+    echo
+    echo "You *must* have the alut library installed on your system to build"
+    echo "SimGear!"
+    echo
+    echo "Please see README.OpenAL for more details."
+    echo
+    echo "configure aborted."
+    exit
+fi
+
+
+
 LIBS="$base_LIBS"
 
 AC_SUBST(base_LIBS)
@@ -369,6 +386,18 @@ int main() {
 
 LIBS="$saved_LIBS"
 
+AC_CHECK_HEADER(osg/Version)
+if test "x$ac_cv_header_osg_Version" != "xyes"; then
+    echo
+    echo "You *must* have the OpenSceneGraph support library installed on your system"
+    echo "to build this version of SimGear!"
+    echo
+    echo "Please see README.OSG for more details."
+    echo
+    echo "configure aborted."
+    exit
+fi
+
 AC_LANG_POP
 
 dnl Check for system installed zlib