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-rw-r--r--src/PJ_sterea.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/PJ_sterea.cpp b/src/PJ_sterea.cpp
index 4c2fe2a3..05a6e5e3 100644
--- a/src/PJ_sterea.cpp
+++ b/src/PJ_sterea.cpp
@@ -29,12 +29,14 @@
#include "proj_math.h"
+namespace { // anonymous namespace
struct pj_opaque {
double phic0;
double cosc0, sinc0;
double R2;
void *en;
};
+} // anonymous namespace
PROJ_HEAD(sterea, "Oblique Stereographic Alternative") "\n\tAzimuthal, Sph&Ell";