--- povray-3.7.0.10.orig/unix/configure.ac	2026-10-18 07:27:12.857806788 +0200
+++ povray-3.7.0.10/unix/configure.ac	2026-10-18 07:27:12.866725962 +0200
@@ -333,7 +333,7 @@ for extralib in '' '-lboost_system'
 do
   LIBS=$SAVED_LIBS
   LIBS="$LIBS $extralib"
-  AC_RUN_IFELSE([
+  AC_LINK_IFELSE([
     AC_LANG_PROGRAM([[
       #include <boost/thread/thread.hpp>
     ]],[[
@@ -345,8 +345,6 @@ do
     AC_MSG_RESULT([yes])
     BOOST_THREAD_LIB="$BOOST_THREAD_LIB $extralib"
     boost_thread_links=1
-  ],,[
-    AC_MSG_RESULT([cross-compiling])  # FIXME
   ])
   if test $boost_thread_links = '1'; then
     break
--- povray-3.7.0.10.orig/unix/config/ax_check_lib.m4	2026-10-18 07:28:41.271176282 +0200
+++ povray-3.7.0.10/unix/config/ax_check_lib.m4	2026-10-18 07:28:41.283466469 +0200
@@ -62,7 +62,10 @@ int main (void)
               ax_check_lib="unknown"
               AC_MSG_RESULT([$ax_check_lib])
             ],
-            [AC_MSG_RESULT([cross-compiling, forced])]
+            [
+              ax_check_lib="ok"
+              AC_MSG_RESULT([cross-compiling, forced])
+            ]
           )  # AC_RUN_IFELSE
         ],
         [ax_check_lib="no headers"]
--- povray-3.7.0.10.orig/unix/config/ax_check_libjpeg.m4	2026-10-18 07:28:41.292176101 +0200
+++ povray-3.7.0.10/unix/config/ax_check_libjpeg.m4	2026-10-18 07:28:41.305082867 +0200
@@ -66,7 +66,10 @@ int main (void)
               ax_check_libjpeg="unknown"
               AC_MSG_RESULT([$ax_check_libjpeg])
             ],
-            [AC_MSG_RESULT([cross-compiling, forced])]
+            [
+              ax_check_libjpeg="ok"
+              AC_MSG_RESULT([cross-compiling, forced])
+            ]
           )  # AC_RUN_IFELSE
         ],
         [ax_check_libjpeg="no headers"]
--- povray-3.7.0.10.orig/unix/config/ax_check_libtiff.m4	2026-10-18 07:28:41.313175919 +0200
+++ povray-3.7.0.10/unix/config/ax_check_libtiff.m4	2026-10-18 07:28:41.326482106 +0200
@@ -70,7 +70,10 @@ int main (void)
               ax_check_libtiff="unknown"
               AC_MSG_RESULT([$ax_check_libtiff])
             ],
-            [AC_MSG_RESULT([cross-compiling, forced])]
+            [
+              ax_check_libtiff="ok"
+              AC_MSG_RESULT([cross-compiling, forced])
+            ]
           )  # AC_RUN_IFELSE
         ],
         [ax_check_libtiff="no headers"]