X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=configure.ac;h=1af45ab9dfaaf21fb7e4d0f00563af965320aa6f;hb=65fd0c9c7a6ce872976e0299b6fb2bbde8d523b6;hp=7ea6728bf5be291f5dc66ce4023dcbe83e78e5c7;hpb=70be1629e61d9b751a2f73df30b83bb1be6ca4fe;p=flightgear.git

diff --git a/configure.ac b/configure.ac
index 7ea6728bf..1af45ab9d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -625,6 +625,13 @@ fi
 LIBS=$save_LIBS
 CPPFLAGS=$save_CPPFLAGS
 
+AC_MSG_CHECKING([for feenableexcept])
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[#define _GNU_SOURCE
+#include <fenv.h>]], [[feenableexcept(FE_DIVBYZERO)]])],
+[AC_DEFINE([HAVE_FEENABLEEXCEPT], 1, [define if system has fenableexcept])],
+AC_MSG_RESULT([yes]),
+AC_MSG_RESULT([no]))
+
 dnl Checks for header files.
 AC_HEADER_STDC
 AC_CHECK_HEADERS( \
@@ -722,6 +729,7 @@ AC_CONFIG_FILES([ \
 	utils/propmerge/Makefile \
 	utils/TerraSync/Makefile \
 	utils/xmlgrep/Makefile \
+	utils/fgviewer/Makefile \
 ])
 AC_OUTPUT