Declare pi and sqrt2 constants as static

aimukhin · aimukhin · commit b288c0e6c8fc · 2020-07-23T13:04:45.000+03:00
This avoids their exposure into object file.
diff --git a/machdep/neon-single/mkaux_dft_1d.c b/machdep/neon-single/mkaux_dft_1d.c
@@ -7,7 +7,7 @@
 #include <math.h>
 #include <tgmath.h>
 
-extern const minfft_real pi;
+static const minfft_real pi=3.141592653589793238462643383279502884L;
 
 // make aux data for one-dimensional forward or inverse complex DFT
 
diff --git a/machdep/sse3-single/mkaux_dft_1d.c b/machdep/sse3-single/mkaux_dft_1d.c
@@ -7,7 +7,7 @@
 #include <math.h>
 #include <tgmath.h>
 
-extern const minfft_real pi;
+static const minfft_real pi=3.141592653589793238462643383279502884L;
 
 // make aux data for one-dimensional forward or inverse complex DFT
 
diff --git a/minfft.c b/minfft.c
@@ -7,8 +7,8 @@
 #include <math.h>
 #include <tgmath.h>
 
-const minfft_real pi=3.141592653589793238462643383279502884L;
-const minfft_real sqrt2=1.414213562373095048801688724209698079L;
+static const minfft_real pi=3.141592653589793238462643383279502884L;
+static const minfft_real sqrt2=1.414213562373095048801688724209698079L;
 
 // *** meta-functions ***
 
