fix 'extern inline' handling to use gnu inlines

http://bugs.gentoo.org/204610

--- elfutils-0.131/backends/ia64_retval.c
+++ elfutils-0.131/backends/ia64_retval.c
@@ -96,7 +96,7 @@
      If we find a datum that's not the same FP type as the first datum, punt.
      If we count more than eight total homogeneous FP data, punt.  */
 
-  inline int hfa (const Dwarf_Op *loc, int nregs)
+  __gnu_inline int hfa (const Dwarf_Op *loc, int nregs)
     {
       if (fpregs_used == 0)
 	*locp = loc;
--- elfutils-0.131/libdw/dwarf_entry_breakpoints.c
+++ elfutils-0.131/libdw/dwarf_entry_breakpoints.c
@@ -64,7 +64,7 @@
   *bkpts = NULL;
 
   /* Add one breakpoint location to the result vector.  */
-  inline int add_bkpt (Dwarf_Addr pc)
+  __gnu_inline int add_bkpt (Dwarf_Addr pc)
     {
       Dwarf_Addr *newlist = realloc (*bkpts, ++nbkpts * sizeof newlist[0]);
       if (newlist == NULL)
@@ -80,7 +80,7 @@
     }
 
   /* Fallback result, break at the entrypc/lowpc value.  */
-  inline int entrypc_bkpt (void)
+  __gnu_inline int entrypc_bkpt (void)
     {
       Dwarf_Addr pc;
       return INTUSE(dwarf_entrypc) (die, &pc) < 0 ? -1 : add_bkpt (pc);
@@ -107,7 +107,7 @@
   /* Search a contiguous PC range for prologue-end markers.
      If DWARF, look for proper markers.
      Failing that, if ADHOC, look for the ad hoc convention.  */
-  inline int search_range (Dwarf_Addr low, Dwarf_Addr high,
+  __gnu_inline int search_range (Dwarf_Addr low, Dwarf_Addr high,
 			   bool dwarf, bool adhoc)
     {
       size_t l = 0, u = nlines;
--- elfutils-0.131/libdw/dwarf_getscopevar.c
+++ elfutils-0.131/libdw/dwarf_getscopevar.c
@@ -93,7 +93,7 @@
   size_t match_file_len = match_file == NULL ? 0 : strlen (match_file);
   bool lastfile_matches = false;
   const char *lastfile = NULL;
-  inline bool file_matches (Dwarf_Files *files, size_t idx)
+  __gnu_inline bool file_matches (Dwarf_Files *files, size_t idx)
     {
       if (idx >= files->nfiles)
 	return false;
--- elfutils-0.131/libdw/libdw.h
+++ elfutils-0.131/libdw/libdw.h
@@ -633,6 +633,12 @@
 
 /* Inline optimizations.  */
+#if defined(__GNUC_STDC_INLINE__) || defined(__GNUC_GNU_INLINE__)
+# define __gnu_inline inline __attribute__ ((__gnu_inline__))
+#else
+# define __gnu_inline inline
+#endif
+
 #ifdef __OPTIMIZE__
 /* Return attribute code of given attribute.  */
 __libdw_extern_inline unsigned int
 dwarf_whatattr (Dwarf_Attribute *attr)
--- elfutils-0.131/libdw/libdw_visit_scopes.c
+++ elfutils-0.131/libdw/libdw_visit_scopes.c
@@ -109,7 +109,7 @@
   if (INTUSE(dwarf_child) (&root->die, &child.die) != 0)
     return -1;
 
-  inline int recurse (void)
+  __gnu_inline int recurse (void)
     {
       return __libdw_visit_scopes (depth + 1, &child,
 				   previsit, postvisit, arg);
--- elfutils-0.131/libdwfl/argp-std.c
+++ elfutils-0.131/libdwfl/argp-std.c
@@ -106,7 +106,7 @@
 static error_t
 parse_opt (int key, char *arg, struct argp_state *state)
 {
-  inline void failure (Dwfl *dwfl, int errnum, const char *msg)
+  __gnu_inline void failure (Dwfl *dwfl, int errnum, const char *msg)
     {
       if (errnum == -1)
 	argp_failure (state, EXIT_FAILURE, 0, "%s: %s",
@@ -116,7 +116,7 @@
       if (dwfl != NULL)
 	dwfl_end (dwfl);
     }
-  inline error_t fail (Dwfl *dwfl, int errnum, const char *msg)
+  __gnu_inline error_t fail (Dwfl *dwfl, int errnum, const char *msg)
     {
       failure (dwfl, errnum, msg);
       return errnum == -1 ? EIO : errnum;
--- elfutils-0.131/libdwfl/dwfl_module_addrsym.c
+++ elfutils-0.131/libdwfl/dwfl_module_addrsym.c
@@ -59,7 +59,7 @@
 
   /* Return true iff we consider ADDR to lie in the same section as SYM.  */
   GElf_Word addr_shndx = SHN_UNDEF;
-  inline bool same_section (const GElf_Sym *sym, GElf_Word shndx)
+  __gnu_inline bool same_section (const GElf_Sym *sym, GElf_Word shndx)
     {
       /* For absolute symbols and the like, only match exactly.  */
       if (shndx >= SHN_LORESERVE)
--- elfutils-0.131/libdwfl/dwfl_module_getsrc_file.c
+++ elfutils-0.131/libdwfl/dwfl_module_getsrc_file.c
@@ -79,15 +79,15 @@
 	 && cu != NULL
 	 && (error = __libdwfl_cu_getsrclines (cu)) == DWFL_E_NOERROR)
     {
-      inline const char *INTUSE(dwarf_line_file) (const Dwarf_Line *line)
+      __gnu_inline const char *INTUSE(dwarf_line_file) (const Dwarf_Line *line)
 	{
 	  return line->files->info[line->file].name;
 	}
-      inline Dwarf_Line *dwfl_line (const Dwfl_Line *line)
+      __gnu_inline Dwarf_Line *dwfl_line (const Dwfl_Line *line)
 	{
 	  return &dwfl_linecu (line)->die.cu->lines->info[line->idx];
 	}
-      inline const char *dwfl_line_file (const Dwfl_Line *line)
+      __gnu_inline const char *dwfl_line_file (const Dwfl_Line *line)
 	{
 	  return INTUSE(dwarf_line_file) (dwfl_line (line));
 	}
--- elfutils-0.131/libdwfl/elf-from-memory.c
+++ elfutils-0.131/libdwfl/elf-from-memory.c
@@ -216,7 +216,7 @@
   bool found_base = false;
   switch (ehdr.e32.e_ident[EI_CLASS])
     {
-      inline void handle_segment (GElf_Addr vaddr, GElf_Off offset,
+      __gnu_inline void handle_segment (GElf_Addr vaddr, GElf_Off offset,
 				  GElf_Xword filesz, GElf_Xword align)
 	{
 	  GElf_Off segment_end = ((offset + filesz + align - 1) & -align);
@@ -280,7 +280,7 @@
 
   switch (ehdr.e32.e_ident[EI_CLASS])
     {
-      inline bool handle_segment (GElf_Addr vaddr, GElf_Off offset,
+      __gnu_inline bool handle_segment (GElf_Addr vaddr, GElf_Off offset,
 				  GElf_Xword filesz, GElf_Xword align)
 	{
 	  GElf_Off start = offset & -align;
--- elfutils-0.131/libdwfl/linux-kernel-modules.c
+++ elfutils-0.131/libdwfl/linux-kernel-modules.c
@@ -541,7 +541,7 @@
 {
   Dwarf_Addr start;
   Dwarf_Addr end;
-  inline Dwfl_Module *report (void)
+  __gnu_inline Dwfl_Module *report (void)
     {
       return INTUSE(dwfl_report_module) (dwfl, KERNEL_MODNAME, start, end);
     }
@@ -628,7 +628,7 @@
      only '_' and one only using '-'.  */
 
   char alternate_name[namelen + 1];
-  inline bool subst_name (char from, char to)
+  __gnu_inline bool subst_name (char from, char to)
     {
       const char *n = memchr (module_name, from, namelen);
       if (n == NULL)
--- elfutils-0.131/libdwfl/linux-proc-maps.c
+++ elfutils-0.131/libdwfl/linux-proc-maps.c
@@ -134,7 +134,7 @@
   char *last_file = NULL;
   Dwarf_Addr low = 0, high = 0;
 
-  inline bool report (void)
+  __gnu_inline bool report (void)
     {
       if (last_file != NULL)
 	{
--- elfutils-0.131/src/ld.h
+++ elfutils-0.131/src/ld.h
@@ -1087,7 +1087,7 @@
 
 /* Checked whether the symbol is undefined and referenced from a DSO.  */
 extern bool linked_from_dso_p (struct scninfo *scninfo, size_t symidx);
-extern inline bool
+extern __gnu_inline bool
 linked_from_dso_p (struct scninfo *scninfo, size_t symidx)
 {
   struct usedfiles *file = scninfo->fileinfo;
--- elfutils-0.131/src/readelf.c
+++ elfutils-0.131/src/readelf.c
@@ -5722,7 +5722,7 @@
   qsort (regs, maxreg + 1, sizeof regs[0], &compare_registers);
 
   /* Collect the unique sets and sort them.  */
-  inline bool same_set (const struct register_info *a,
+  __gnu_inline bool same_set (const struct register_info *a,
 			const struct register_info *b)
   {
     return (a < &regs[maxnreg] && a->regloc != NULL
--- elfutils-0.131/src/strip.c
+++ elfutils-0.131/src/strip.c
@@ -1336,7 +1336,7 @@
 	  /* Update section headers when the data size has changed.
 	     We also update the SHT_NOBITS section in the debug
 	     file so that the section headers match in sh_size.  */
-	  inline void update_section_size (const Elf_Data *newdata)
+	  __gnu_inline void update_section_size (const Elf_Data *newdata)
 	    {
 	      GElf_Shdr shdr_mem;
 	      GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
--- elfutils-0.131/src/unstrip.c
+++ elfutils-0.131/src/unstrip.c
@@ -389,7 +389,7 @@
 {
   Elf_Data *data = elf_getdata (outscn, NULL);
 
-  inline void adjust_reloc (GElf_Xword *info)
+  __gnu_inline void adjust_reloc (GElf_Xword *info)
     {
       size_t ndx = GELF_R_SYM (*info);
       if (ndx != STN_UNDEF)
@@ -1039,7 +1039,7 @@
     }
 
   bool fail = false;
-  inline void check_match (bool match, Elf_Scn *scn, const char *name)
+  __gnu_inline void check_match (bool match, Elf_Scn *scn, const char *name)
     {
       if (!match)
 	{
@@ -1267,7 +1267,7 @@
     }
 
   /* Locate a matching unallocated section in SECTIONS.  */
-  inline struct section *find_unalloc_section (const GElf_Shdr *shdr,
+  __gnu_inline struct section *find_unalloc_section (const GElf_Shdr *shdr,
 					       const char *name)
     {
       size_t l = nalloc, u = stripped_shnum - 1;
@@ -2182,7 +2182,7 @@
 handle_implicit_modules (const struct arg_info *info)
 {
   struct match_module_info mmi = { info->args, NULL, info->match_files };
-  inline ptrdiff_t next (ptrdiff_t offset)
+  __gnu_inline ptrdiff_t next (ptrdiff_t offset)
     {
       return dwfl_getmodules (info->dwfl, &match_module, &mmi, offset);
     }