Prefix inverse and forward functions by their projection names

This is mostly to have better OSSFuzz report. Currently a lot
of bug summaries are like
`proj4/standard_fuzzer: Divide-by-zero in s_inverse`

By prefixing the projection name, we will get better reports, like
`Divide-by-zero in airy_s_inverse`

This also makes it slightly easier to set a breakpoint by
function name.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/projections/mbtfpq.cpp b/src/projections/mbtfpq.cpp
index ec49f9ce..9a419790 100644
--- a/src/projections/mbtfpq.cpp
+++ b/src/projections/mbtfpq.cpp
@@ -18,7 +18,7 @@ PROJ_HEAD(mbtfpq, "McBryde-Thomas Flat-Polar Quartic") "\n\tCyl, Sph";
 #define RXC 3.20041258076506210122
 
 
-static PJ_XY s_forward (PJ_LP lp, PJ *P) {           /* Spheroidal, forward */
+static PJ_XY mbtfpq_s_forward (PJ_LP lp, PJ *P) {           /* Spheroidal, forward */
     PJ_XY xy = {0.0,0.0};
     double th1, c;
     int i;
@@ -36,7 +36,7 @@ static PJ_XY s_forward (PJ_LP lp, PJ *P) {           /* Spheroidal, forward */
 }
 
 
-static PJ_LP s_inverse (PJ_XY xy, PJ *P) {           /* Spheroidal, inverse */
+static PJ_LP mbtfpq_s_inverse (PJ_XY xy, PJ *P) {           /* Spheroidal, inverse */
     PJ_LP lp = {0.0,0.0};
     double t;
 
@@ -67,8 +67,8 @@ static PJ_LP s_inverse (PJ_XY xy, PJ *P) {           /* Spheroidal, inverse */
 PJ *PROJECTION(mbtfpq) {
 
     P->es = 0.;
-    P->inv = s_inverse;
-    P->fwd = s_forward;
+    P->inv = mbtfpq_s_inverse;
+    P->fwd = mbtfpq_s_forward;
 
     return P;
 }