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-rw-r--r--src/PJ_bipc.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/PJ_bipc.cpp b/src/PJ_bipc.cpp
index 243ecccd..95cbcbb8 100644
--- a/src/PJ_bipc.cpp
+++ b/src/PJ_bipc.cpp
@@ -29,9 +29,11 @@ PROJ_HEAD(bipc, "Bipolar conic of western hemisphere") "\n\tConic Sph";
# define R104 1.81514242207410275904
+namespace { // anonymous namespace
struct pj_opaque {
int noskew;
};
+} // anonymous namespace
static XY s_forward (LP lp, PJ *P) { /* Spheroidal, forward */