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-rw-r--r--src/geodesic.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/geodesic.h b/src/geodesic.h
index a779c879..fc161f3b 100644
--- a/src/geodesic.h
+++ b/src/geodesic.h
@@ -7,6 +7,7 @@ extern "C" {
#endif
extern double dmstor();
+double proj_strtod(const char *, char **);
struct geodesic {
double A;
double LAM1, PHI1, ALPHA12;