update: allow -DFLAT=1 to set a flat spacetime without black hole during compilation

2026-02-28 02:04:51 -05:00
parent 4be6add815
commit 96c7350aa1
1 changed files with 2 additions and 0 deletions
--- a/src/common.h
+++ b/src/common.h
@@ -7,7 +7,9 @@

 #define POW2(x) ((x)*(x))

+#ifndef FLAT
 #define FLAT 0
+#endif
 #define PI 3.1415926535897932384626433832795028841971693993751058
 #define Rs 1
 #define M (FLAT ? 0 : 0.5*Rs)