Added #define to make MSVC see M_PI

Discussed here: dkogan/mrcal#12
dkogan · Dec 8, 2023 · 1f88d01 · 1f88d01
1 parent 3d45754
commit 1f88d01
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/dogleg.c b/dogleg.c
@@ -3,6 +3,9 @@
 //           2017-2018 Dima Kogan <dima@secretsauce.net>
 // License: GNU LGPL <http://www.gnu.org/licenses>.
 
+// Apparently I need this in MSVC to get constants
+#define _USE_MATH_DEFINES
+
 #include <stdio.h>
 #include <stdarg.h>
 #include <math.h>