acinclude.m4 (LIBGFOR_CHECK_ATTRIBUTE_VISIBILITY): New.

        * acinclude.m4 (LIBGFOR_CHECK_ATTRIBUTE_VISIBILITY): New.
        (LIBGFOR_CHECK_ATTRIBUTE_DLLEXPORT): New.
        (LIBGFOR_CHECK_ATTRIBUTE_ALIAS): New.
        * configure.ac: Use them.
        * configure, config.h.in, aclocal.m4: Rebuild.
        * libgfortran.h (prefix): Remove.
        (PREFIX, IPREFIX): New.
        (sym_rename, sym_rename1, sym_rename2): New.
        (internal_proto, export_proto, export_proto_np): New.
        (iexport_proto, iexport): New.
        (iexport_data_proto, iexport_data): New.
        * intrinsics/abort.c, intrinsics/args.c, intrinsics/associated.c,
        intrinsics/cpu_time.c, intrinsics/cshift0.c,
        intrinsics/date_and_time.c, intrinsics/env.c, intrinsics/eoshift0.c,
        intrinsics/eoshift2.c, intrinsics/etime.c, intrinsics/exit.c,
        intrinsics/flush.c, intrinsics/fnum.c, intrinsics/getXid.c,
        intrinsics/getcwd.c, intrinsics/ishftc.c, intrinsics/mvbits.c,
        intrinsics/pack_generic.c, intrinsics/rand.c, intrinsics/random.c,
        intrinsics/reshape_generic.c, intrinsics/size.c,
        intrinsics/spread_generic.c, intrinsics/stat.c,
        intrinsics/string_intrinsics.c, intrinsics/system.c,
        intrinsics/system_clock.c, intrinsics/transpose_generic.c,
        intrinsics/umask.c, intrinsics/unlink.c, intrinsics/unpack_generic.c,
        io/backspace.c, io/close.c, io/endfile.c, io/inquire.c, io/io.h,
        io/open.c, io/rewind.c, io/transfer.c, libgfortran.h, m4/cshift1.m4,
        m4/dotprod.m4, m4/dotprodc.m4, m4/dotprodl.m4, m4/eoshift1.m4,
        m4/eoshift3.m4, m4/exponent.m4, m4/fraction.m4, m4/iforeach.m4,
        m4/ifunction.m4, m4/matmul.m4, m4/matmull.m4, m4/nearest.m4,
        m4/pow.m4, m4/reshape.m4, m4/set_exponent.m4, m4/shape.m4,
        m4/transpose.m4, runtime/environ.c, runtime/error.c,
        runtime/in_pack_generic.c, runtime/in_unpack_generic.c,
        runtime/main.c, runtime/memory.c, runtime/pause.c, runtime/select.c,
        runtime/stop.c: Use them to mark symbols internal or external.
        * generated/*: Rebuild.

From-SVN: r92045

9 files changed, 55 insertions, 39 deletions

diff --git a/libgfortran/runtime/environ.c b/libgfortran/runtime/environ.c
index dc6e590..02831f1 100644
--- a/libgfortran/runtime/environ.c
+++ b/libgfortran/runtime/environ.c
@@ -37,7 +37,7 @@ Boston, MA 02111-1307, USA.  */
  * but other variables are checked during execution of the user's
  * program. */
 
-options_t options;
+options_t options = { };
 
 extern char **environ;
 
diff --git a/libgfortran/runtime/error.c b/libgfortran/runtime/error.c
index 913812c..2ccaff0 100644
--- a/libgfortran/runtime/error.c
+++ b/libgfortran/runtime/error.c
@@ -48,8 +48,11 @@ Boston, MA 02111-1307, USA.  */
  * that files that report loci and those that do not can be linked
  * together without reporting an erroneous position. */
 
-char *filename;
-unsigned line;
+char *filename = 0;
+iexport_data(filename);
+
+unsigned line = 0;
+iexport_data(line);
 
 static char buffer[32];		/* buffer for integer/ascii conversions */
 
@@ -332,6 +335,7 @@ runtime_error (const char *message)
   st_printf ("Fortran runtime error: %s\n", message);
   sys_exit (2);
 }
+iexport(runtime_error);
 
 
 /* void internal_error()-- These are this-can't-happen errors
diff --git a/libgfortran/runtime/in_pack_generic.c b/libgfortran/runtime/in_pack_generic.c
index fefac07..7849a58 100644
--- a/libgfortran/runtime/in_pack_generic.c
+++ b/libgfortran/runtime/in_pack_generic.c
@@ -25,6 +25,9 @@ Boston, MA 02111-1307, USA.  */
 #include <string.h>
 #include "libgfortran.h"
 
+extern void *internal_pack (gfc_array_char *);
+export_proto(internal_pack);
+
 void *
 internal_pack (gfc_array_char * source)
 {
diff --git a/libgfortran/runtime/in_unpack_generic.c b/libgfortran/runtime/in_unpack_generic.c
index d468e74..313a79f 100644
--- a/libgfortran/runtime/in_unpack_generic.c
+++ b/libgfortran/runtime/in_unpack_generic.c
@@ -25,6 +25,9 @@ Boston, MA 02111-1307, USA.  */
 #include <string.h>
 #include "libgfortran.h"
 
+extern void internal_unpack (gfc_array_char *, const void *);
+export_proto(internal_unpack);
+
 void
 internal_unpack (gfc_array_char * d, const void * s)
 {
diff --git a/libgfortran/runtime/main.c b/libgfortran/runtime/main.c
index 4e1f78c..882946c 100644
--- a/libgfortran/runtime/main.c
+++ b/libgfortran/runtime/main.c
@@ -29,12 +29,11 @@ Boston, MA 02111-1307, USA.  */
 /* This is the offset (in bytes) required to cast from logical(8)* to
    logical(4)*. and still get the same result.  Will be 0 for little-endian
    machines and 4 for big-endian machines.  */
-int l8_to_l4_offset;
+int l8_to_l4_offset = 0;
 
 
 /* Figure out endianness for this machine.  */
 
-#define detetmine_endianness	prefix(determine_endianness)
 static void
 determine_endianness (void)
 {
@@ -95,12 +94,10 @@ init (void)
   if (argc > 1 && strcmp (argv[1], "--help") == 0)
     show_variables ();
 
-/*  if (argc > 1 && strcmp(argv[1], "--resume") == 0) resume();  */
+  /* if (argc > 1 && strcmp(argv[1], "--resume") == 0) resume();  */
 #endif
 
-  memory_init ();
   random_seed(NULL,NULL,NULL);
-
 }
 
 
diff --git a/libgfortran/runtime/memory.c b/libgfortran/runtime/memory.c
index 2280848..71bad9f 100644
--- a/libgfortran/runtime/memory.c
+++ b/libgfortran/runtime/memory.c
@@ -37,7 +37,6 @@ Boston, MA 02111-1307, USA.  */
    the memory we allocate internally.  We could also use this for user
    allocated memory (ALLOCATE/DEALLOCATE).  This should be stored in a
    seperate list.  */
-#define malloc_t	prefix(malloc_t)
 typedef struct malloc_t
 {
   int magic;
@@ -59,31 +58,25 @@ malloc_t;
 
 /* The root of the circular double linked list for compiler generated
    malloc calls.  */
-static malloc_t mem_root;
-
-
-void
-memory_init (void)
-{
-  /* The root should never be used directly, so don't set the magic.  */
-  mem_root.magic = 0;
-  mem_root.next = &mem_root;
-  mem_root.prev = &mem_root;
-  mem_root.marker = 0;
-}
-
-
+static malloc_t mem_root = {
+	.next = &mem_root,
+	.prev = &mem_root
+};
+
+#if 0
+/* ??? Disabled because, well, it wasn't being called before transforming
+   it to a destructor, and turning it on causes testsuite failures.  */
 /* Doesn't actually do any cleaning up, just throws an error if something
    has got out of sync somewhere.  */
 
-void
+static void __attribute__((destructor))
 runtime_cleanup (void)
 {
   /* Make sure all memory we've allocated is freed on exit.  */
   if (mem_root.next != &mem_root)
     runtime_error ("Unfreed memory on program termination");
 }
-
+#endif
 
 
 void *
@@ -92,13 +85,9 @@ get_mem (size_t n)
   void *p;
 
 #ifdef GFC_CLEAR_MEMORY
-  p = (void *) calloc (n, 1);
+  p = (void *) calloc (1, n);
 #else
-#define temp malloc
-#undef malloc
   p = (void *) malloc (n);
-#define malloc temp
-#undef temp
 #endif
   if (p == NULL)
     os_error ("Memory allocation failed");
@@ -157,6 +146,8 @@ internal_malloc_size (size_t size)
   return DATA_POINTER (newmem);
 }
 
+extern void *internal_malloc (GFC_INTEGER_4);
+export_proto(internal_malloc);
 
 void *
 internal_malloc (GFC_INTEGER_4 size)
@@ -170,6 +161,8 @@ internal_malloc (GFC_INTEGER_4 size)
   return internal_malloc_size ((size_t) size);
 }
 
+extern void *internal_malloc64 (GFC_INTEGER_8);
+export_proto(internal_malloc64);
 
 void *
 internal_malloc64 (GFC_INTEGER_8 size)
@@ -209,6 +202,7 @@ internal_free (void *mem)
 
   free (m);
 }
+iexport(internal_free);
 
 
 /* User-allocate, one call for each member of the alloc-list of an
@@ -244,6 +238,8 @@ allocate_size (void **mem, size_t size, GFC_INTEGER_4 * stat)
     *stat = 0;
 }
 
+extern void allocate (void **, GFC_INTEGER_4, GFC_INTEGER_4 *);
+export_proto(allocate);
 
 void
 allocate (void **mem, GFC_INTEGER_4 size, GFC_INTEGER_4 * stat)
@@ -258,6 +254,8 @@ allocate (void **mem, GFC_INTEGER_4 size, GFC_INTEGER_4 * stat)
   allocate_size (mem, (size_t) size, stat);
 }
 
+extern void allocate64 (void **, GFC_INTEGER_8, GFC_INTEGER_4 *);
+export_proto(allocate64);
 
 void
 allocate64 (void **mem, GFC_INTEGER_8 size, GFC_INTEGER_4 * stat)
@@ -276,6 +274,9 @@ allocate64 (void **mem, GFC_INTEGER_8 size, GFC_INTEGER_4 * stat)
 
 /* User-deallocate; pointer is NULLified. */
 
+extern void deallocate (void **, GFC_INTEGER_4 *);
+export_proto(deallocate);
+
 void
 deallocate (void **mem, GFC_INTEGER_4 * stat)
 {
diff --git a/libgfortran/runtime/pause.c b/libgfortran/runtime/pause.c
index e2d08be..e6d683b 100644
--- a/libgfortran/runtime/pause.c
+++ b/libgfortran/runtime/pause.c
@@ -25,9 +25,6 @@ Boston, MA 02111-1307, USA.  */
 
 #include "libgfortran.h"
 
-#define pause_numeric prefix(pause_numeric)
-#define pause_string prefix(pause_string)
-
 static void
 do_pause (void)
 {
@@ -42,6 +39,10 @@ do_pause (void)
 }
 
 /* A numeric or blank STOP statement.  */
+
+extern void pause_numeric (GFC_INTEGER_4 code);
+export_proto(pause_numeric);
+
 void
 pause_numeric (GFC_INTEGER_4 code)
 {
@@ -55,6 +56,8 @@ pause_numeric (GFC_INTEGER_4 code)
   do_pause ();
 }
 
+extern void pause_string (char *string, GFC_INTEGER_4 len);
+export_proto(pause_string);
 
 void
 pause_string (char *string, GFC_INTEGER_4 len)
diff --git a/libgfortran/runtime/select.c b/libgfortran/runtime/select.c
index 5ee873a..807845c 100644
--- a/libgfortran/runtime/select.c
+++ b/libgfortran/runtime/select.c
@@ -30,15 +30,18 @@ typedef struct
 }
 select_struct;
 
-
-#define select_string prefix(select_string)
+extern void * select_string (select_struct *table, int table_len,
+			     void *default_jump, const char *selector,
+			     int selector_len);
+export_proto(select_string);
 
 
 /* select_string()-- Given a selector string and a table of
  * select_struct structures, return the address to jump to. */
 
-void *select_string (select_struct *table, int table_len, void *default_jump,
-                    const char *selector, int selector_len)
+void *
+select_string (select_struct *table, int table_len, void *default_jump,
+	       const char *selector, int selector_len)
 {
   select_struct *t;
   int i, low, high, mid;
diff --git a/libgfortran/runtime/stop.c b/libgfortran/runtime/stop.c
index ef8741a..5ae06ec 100644
--- a/libgfortran/runtime/stop.c
+++ b/libgfortran/runtime/stop.c
@@ -24,8 +24,6 @@ Boston, MA 02111-1307, USA.  */
 
 #include "libgfortran.h"
 
-#define stop_string prefix(stop_string)
-
 /* A numeric or blank STOP statement.  */
 void
 stop_numeric (GFC_INTEGER_4 code)
@@ -39,7 +37,11 @@ stop_numeric (GFC_INTEGER_4 code)
 
   sys_exit (code);
 }
+iexport(stop_numeric);
+
 
+extern void stop_string (const char *string, GFC_INTEGER_4 len);
+export_proto(stop_string);
 
 void
 stop_string (const char *string, GFC_INTEGER_4 len)