cephes extern export

gtsam/3rdparty/cephes/CMakeLists.txt

@@ -8,6 +8,7 @@ project(
 
 set(CEPHES_HEADER_FILES
     cephes.h
+    dllexport.h
     cephes/cephes_names.h
     cephes/dd_idefs.h
     cephes/dd_real.h

gtsam/3rdparty/cephes/cephes.h

@@ -2,6 +2,7 @@
 #define CEPHES_H
 
 #include "cephes/cephes_names.h"
+#include "dllexport.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -64,7 +65,7 @@ extern double igamc(double a, double x);
 extern double igam(double a, double x);
 extern double igam_fac(double a, double x);
 extern double igamci(double a, double q);
-extern double igami(double a, double p);
+GTSAM_EXTERN_EXPORT double igami(double a, double p);
 
 extern double incbet(double aa, double bb, double xx);
 extern double incbi(double aa, double bb, double yy0);

gtsam/3rdparty/cephes/dllexport.h

@@ -0,0 +1,60 @@
+/* ----------------------------------------------------------------------------
+
+ * GTSAM Copyright 2010, Georgia Tech Research Corporation, 
+ * Atlanta, Georgia 30332-0415
+ * All Rights Reserved
+ * Authors: Frank Dellaert, et al. (see THANKS for the full author list)
+
+ * See LICENSE for the license information
+
+ * -------------------------------------------------------------------------- */
+
+/**
+ * @file     dllexport.h
+ * @brief    Symbols for exporting classes and methods from DLLs
+ * @author   Richard Roberts
+ * @date     Mar 9, 2013
+ */
+
+// Macros for exporting DLL symbols on Windows
+// Usage example:
+// In header file:
+//   class GTSAM_EXPORT MyClass { ... };
+//   
+// Results in the following declarations:
+// When included while compiling the GTSAM library itself:
+//   class __declspec(dllexport) MyClass { ... };
+// When included while compiling other code against GTSAM:
+//   class __declspec(dllimport) MyClass { ... };
+
+#pragma once
+
+// Whether GTSAM is compiled as static or DLL in windows. 
+// This will be used to decide whether include __declspec(dllimport) or not in headers
+#define GTSAM_SHARED_LIB
+
+#ifdef _WIN32
+#  ifndef GTSAM_SHARED_LIB
+#    define GTSAM_EXPORT
+#    define GTSAM_EXTERN_EXPORT extern
+#  else
+#    ifdef GTSAM_EXPORTS
+#      define GTSAM_EXPORT __declspec(dllexport)
+#      define GTSAM_EXTERN_EXPORT __declspec(dllexport) extern
+#    else
+#      define GTSAM_EXPORT __declspec(dllimport)
+#      define GTSAM_EXTERN_EXPORT __declspec(dllimport)
+#    endif
+#  endif
+#else
+#ifdef __APPLE__
+#  define GTSAM_EXPORT __attribute__((visibility("default")))
+#  define GTSAM_EXTERN_EXPORT extern
+#else
+#  define GTSAM_EXPORT
+#  define GTSAM_EXTERN_EXPORT extern
+#endif
+#endif
+
+#undef GTSAM_SHARED_LIB
+