[svn-r27270] Changes that allow the autotools to correctly deal with inline

functions.

- Inline markup schemes are now checked with AC_COMPILE_IFELSE
  tests instead of AC_C_INLINE.

- The inline designator is now H5_INLINE instead of H5_inline.
  This is now set in H5private.h instead of H5pubconf.h.

Tested on 64-bit linux VM

1 files changed, 21 insertions, 11 deletions

diff --git a/configure.ac b/configure.ac
index 211ce44..274ea43 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1675,7 +1675,27 @@ AC_CHECK_FUNCS([tmpfile asprintf vasprintf vsnprintf waitpid])
 ## Check compiler characteristics
 ##
 AC_C_CONST
-AC_C_INLINE
+
+AC_MSG_CHECKING([if the compiler understands  __inline__])
+AC_COMPILE_IFELSE(
+    [AC_LANG_SOURCE([[static __inline__ void f(void){return;};]])],
+    [AC_DEFINE([HAVE___INLINE__], [1], [Define if the compiler understands __inline__]) AC_MSG_RESULT([yes])],
+    [AC_MSG_RESULT([no])]
+)
+
+AC_MSG_CHECKING([if the compiler understands __inline])
+AC_COMPILE_IFELSE(
+    [AC_LANG_SOURCE([[static __inline void f(void){return;};]])],
+    [AC_DEFINE([HAVE___INLINE], [1], [Define if the compiler understands __inline]) AC_MSG_RESULT([yes])],
+    [AC_MSG_RESULT([no])]
+)
+
+AC_MSG_CHECKING([if the compiler understands inline])
+AC_COMPILE_IFELSE(
+    [AC_LANG_SOURCE([[static inline void f(void){return;};]])],
+    [AC_DEFINE([HAVE_INLINE], [1], [Define if the compiler understands inline]) AC_MSG_RESULT([yes])],
+    [AC_MSG_RESULT([no])]
+)
 
 AC_MSG_CHECKING([for __attribute__ extension])
 AC_TRY_COMPILE(,[int __attribute__((unused)) x],
@@ -2887,16 +2907,6 @@ if test "X$HDF_CXX" = "Xyes"; then
   chmod 755 c++/src/h5c++
 fi
 
-## We don't want inline defined for C++ compilers
-## Don't worry about the C++ ifdef wrappers in the H5pubconf file, since
-## 'H5_inline' isn't a C++ keyword.
-cat >> src/H5config.h <<EOF
-
-#if defined(__cplusplus) && defined(inline)
-#undef inline
-#endif
-EOF
-
 ## HDF5 configure code created by autotools with gcc 4.9.2 is adding problematic
 ## linker flags:  -l with no library name; -l <libname>, specifically gfortran or m.
 ## This sed script corrects "-l <libname>" first and then "-l " with no library name.