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-rw-r--r--src/PJ_poly.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/PJ_poly.cpp b/src/PJ_poly.cpp
index 3bf7a8dd..9eb97467 100644
--- a/src/PJ_poly.cpp
+++ b/src/PJ_poly.cpp
@@ -9,10 +9,12 @@
PROJ_HEAD(poly, "Polyconic (American)")
"\n\tConic, Sph&Ell";
+namespace { // anonymous namespace
struct pj_opaque {
double ml0; \
double *en;
};
+} // anonymous namespace
#define TOL 1e-10
#define CONV 1e-10