Fix dll export on macos

Author: metab0t

thirdparty/notes.md

@@ -0,0 +1,3 @@
+For CPPAD, remember to change `# define CPPAD_C_COMPILER_MSVC_FLAGS 0` in `cppad/include/configure.hpp`
+
+For IPOPT, remember to mask `IPOPTLIB_EXPORT` in `solvers/ipopt/IpoptConfig.h`

thirdparty/solvers/ipopt/IpoptConfig.h

@@ -28,6 +28,8 @@
 /* Define to 1 if Ipopt index type is int64_t */
 /* #undef IPOPT_INT64 */
 
+#ifdef _MSC_VER
+
 /* Library Visibility Attribute */
 #define IPOPTAMPLINTERFACELIB_EXPORT __declspec(dllimport)
 
@@ -37,6 +39,14 @@
 /* Library Visibility Attribute */
 #define SIPOPTLIB_EXPORT __declspec(dllimport)
 
+#else
+
+#define IPOPTAMPLINTERFACELIB_EXPORT
+#define IPOPTLIB_EXPORT
+#define SIPOPTLIB_EXPORT
+
+#endif
+
 /** type corresponding to integers in Fortran
  * @deprecated Use ipindex instead.
  */