Avoid forcing the search of /usr/include before fixed include files by

resetting C_SWITCH_X_SITE if it is "-I/usr/include".

diff --git a/configure1.in b/configure1.in
index 48883384d1567ed7371f934be72c7faf0cd0f033..1f2818814d33c9ec27165fa1e2a902bf8d1b5790 100755 (executable)
--- a/configure1.in
+++ b/configure1.in
@@ -1065,6 +1065,11 @@ esac
 [ -n "${x_libraries}" ] && LD_SWITCH_X_SITE="-L${x_libraries}"
 [ -n "${x_includes}" ] && C_SWITCH_X_SITE="-I${x_includes}"
 
+# Avoid forcing the search of /usr/include before fixed include files.
+if [ "$C_SWITCH_X_SITE" = "-I/usr/include" ]; then
+   C_SWITCH_X_SITE=" "
+fi
+
 case "${window_system}" in
   x11 )
     HAVE_X_WINDOWS=yes