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-rw-r--r--mpi/mpi-inline.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/mpi/mpi-inline.h b/mpi/mpi-inline.h
index c32adae12..6e44518e0 100644
--- a/mpi/mpi-inline.h
+++ b/mpi/mpi-inline.h
@@ -28,8 +28,15 @@
#ifndef G10_MPI_INLINE_H
#define G10_MPI_INLINE_H
+/* Starting with gcc 4.3 "extern inline" conforms in c99 mode to the
+ c99 semantics. To keep the useful old semantics we use an
+ attribute. */
#ifndef G10_MPI_INLINE_DECL
-#define G10_MPI_INLINE_DECL extern __inline__
+# ifdef __GNUC_STDC_INLINE__
+# define G10_MPI_INLINE_DECL extern inline __attribute__ ((__gnu_inline__))
+# else
+# define G10_MPI_INLINE_DECL extern __inline__
+# endif
#endif
G10_MPI_INLINE_DECL mpi_limb_t