X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=LaRCsim%2Fls_constants.h;h=bdd123d86a90c5877ee814325b47c49e5961e73d;hb=a5b71554a23cf93a223b82eebc9cda0c383a6db2;hp=3e90aab584337f1fb1a83640c1692f7d7295b910;hpb=982a9821d22417ca364c21d3fd65bdbaf70978d7;p=flightgear.git

diff --git a/LaRCsim/ls_constants.h b/LaRCsim/ls_constants.h
index 3e90aab58..bdd123d86 100644
--- a/LaRCsim/ls_constants.h
+++ b/LaRCsim/ls_constants.h
@@ -80,6 +80,9 @@
 	systems of measure)	*/
 
 /* Value of Pi from ref [3] */
+#ifdef PI
+#  undef PI /* avoid a harmless compiler warning */
+#endif
 #define	PI 3.14159265358979323846264338327950288419716939967511
 
 /* Value of earth radius from [8], ft */