mpc.h. mpc-tests.h, mpc-impl.h: handle __MPC_DECLSPEC as for mpfr;

  define as __GMP_DECLSPEC_EXPORT if library is compiled and __GMP_LIBGMP_DLL,
  as in gmp otherwise


git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/trunk@1109 211d60ee-9f03-0410-a15a-8952a2c7a4e4

1 files changed, 9 insertions, 1 deletions

diff --git a/src/mpc.h b/src/mpc.h
index 65cce7a..8f38538 100644
--- a/src/mpc.h
+++ b/src/mpc.h
@@ -120,7 +120,15 @@ typedef __gmp_const __mpc_struct *mpc_srcptr;
 # define __MPC_PROTO(x) ()
 #endif
 
-/* Support for WINDOWS DLL, see the thread http://lists.gforge.inria.fr/pipermail/mpc-discuss/2011-April/000871.html */
+/* Support for WINDOWS DLL, see
+   http://lists.gforge.inria.fr/pipermail/mpc-discuss/2011-November/000990.html;
+   when building the DLL, export symbols, otherwise behave as GMP           */
+#if defined (__MPC_WITHIN_MPC) && __GMP_LIBGMP_DLL
+#define __MPC_DECLSPEC __GMP_DECLSPEC_EXPORT
+#else
+#define __MPC_DECLSPEC __GMP_DECLSPEC
+#endif
+
 #if __GMP_LIBGMP_DLL
 # define __MPC_DECLSPEC __GMP_DECLSPEC_EXPORT
 #else