From 646da7bf3868090ec8ac2d05ab63781de86be64b Mon Sep 17 00:00:00 2001
From: Charles Karney <charles.karney@sri.com>
Date: Wed, 18 Sep 2019 14:25:15 -0400
Subject: math.cpp removed since its isnan isn't used.  Keep proj_math.h (which
 just includes math.h and limits.h) since it's included in a score of places.

---
 src/proj_math.h | 46 +---------------------------------------------
 1 file changed, 1 insertion(+), 45 deletions(-)

(limited to 'src/proj_math.h')

diff --git a/src/proj_math.h b/src/proj_math.h
index 698654dd..ac7fc51d 100644
--- a/src/proj_math.h
+++ b/src/proj_math.h
@@ -1,6 +1,6 @@
 /******************************************************************************
  * Project:  PROJ
- * Purpose:  Make C99 math functions available on C89 systems
+ * Purpose:  Math support for PROJ -- now provided by system libraries
  * Author:   Kristian Evers
  *
  ******************************************************************************
@@ -31,48 +31,4 @@
 #include <math.h>
 #include <limits.h>
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#if !(defined(HAVE_C99_MATH) && HAVE_C99_MATH)
-
-#ifndef PROJ_DLL
-#ifdef PROJ_MSVC_DLL_EXPORT
-#define PROJ_DLL __declspec(dllexport)
-#elif defined(PROJ_MSVC_DLL_IMPORT)
-#define PROJ_DLL __declspec(dllimport)
-#elif defined(__GNUC__)
-#define PROJ_DLL __attribute__ ((visibility("default")))
-#else
-#define PROJ_DLL
-#endif
-#endif
-
-#ifdef PROJ_RENAME_SYMBOLS
-#include "proj_symbol_rename.h"
-#endif
-
-#ifndef NAN
-#ifdef _WIN32
-#define NAN sqrt(-1.0)
-#else
-#define NAN 0.0/0.0
-#endif
-#endif
-
-int     PROJ_DLL pj_isnan(double x);
-
-#ifdef isnan
-#undef isnan
-#endif
-
-#define isnan   pj_isnan
-
-#endif /* !(defined(HAVE_C99_MATH) && HAVE_C99_MATH) */
-
-#ifdef __cplusplus
-}
-#endif
-
 #endif /* PROJ_MATH_H */
-- 
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