consolidate PI into M_PI

diff --git a/lib/twopigen/circle.c b/lib/twopigen/circle.c
index 376be605d64fecbe5fc3a5fb8505ca28fa73acbe..a48cf8407ea47c5b588c199241ec24a76047eb6b 100644 (file)
--- a/lib/twopigen/circle.c
+++ b/lib/twopigen/circle.c
@@ -212,7 +212,7 @@ static void setChildSubtreeSpans(Agraph_t * g, Agnode_t * n)
 
 static void setSubtreeSpans(Agraph_t * sg, Agnode_t * center)
 {
-    SPAN(center) = 2 * PI;
+    SPAN(center) = 2 * M_PI;
     setChildSubtreeSpans(sg, center);
 }
 

diff --git a/plugin/core/gvrender_core_fig.c b/plugin/core/gvrender_core_fig.c
index 18b12f075ebf972c0bfdc890a9f2ac68fd85374a..498806f29fce92bfbc6a5466c80e8deab06ba12c 100644 (file)
--- a/plugin/core/gvrender_core_fig.c
+++ b/plugin/core/gvrender_core_fig.c
@@ -256,7 +256,7 @@ static void fig_textpara(GVJ_t * job, pointf p, textpara_t * para)
     int pen_style = 0;          /* not used */
     int font = -1;             /* init to xfig's default font */
     double font_size = para->fontsize * job->zoom;
-    double angle = job->rotation ? (PI / 2.0) : 0.0;
+    double angle = job->rotation ? (M_PI / 2.0) : 0.0;
     int font_flags = 6;                /* PostScript font + Special text */
 /* Special text indicates that latex markup may exist
  * in the output - but note that dot knows nothing about latex,