On Fri, Sep 12, 2014 at 7:40 AM, Jan Hubicka <hubi...@ucw.cz> wrote:
> Hi,
> I went through excercise of running LTO bootstrap with ODR verification on.
> There are some typename clashes
> I guess we want to fix. I wonder what approach is preferred, do we want to
> introduce anonymous
> namespaces for those?
For passes you could put them into pass class scope. Anonymous
namespaces would work as well but I don't like them very much
and for this it sounds like an abuse of them.
Prefixing/renaming the names is possible as well, of course.
Richard.
> Honza
>
> ../../gcc/tlink.c:62:16: warning: type ‘struct file_hash_entry’ violates one
> definition rule [-Wodr]
> typedef struct file_hash_entry
> ^
> ../../libcpp/files.c:143:8: note: a different type is defined in another
> translation unit
> struct file_hash_entry
> ^
> ../../gcc/tlink.c:64:15: note: the first difference of corresponding
> definitions is field ‘key’
> const char *key;
> ^
> ../../libcpp/files.c:145:27: note: a field with different name is defined in
> another translation unit
> struct file_hash_entry *next;
> ^
> ../../gcc/ipa-devirt.c:2674:0: warning: type ‘struct type_change_info’
> violates one definition rule [-Wodr]
> struct type_change_info
> ^
> ../../gcc/ipa-prop.c:595:0: note: a different type is defined in another
> translation unit
> struct type_change_info
> ^
> ../../gcc/ipa-devirt.c:2681:0: note: the first difference of corresponding
> definitions is field ‘instance’
> tree instance;
> ^
> ../../gcc/ipa-prop.c:602:0: note: a field with different name is defined in
> another translation unit
> tree object;
> ^
> ../../gcc/gcse.c:294:0: warning: type ‘struct occr’ violates one definition
> rule [-Wodr]
> struct occr
> ^
> ../../gcc/postreload-gcse.c:160:0: note: a different type is defined in
> another translation unit
> struct occr
> ^
> ../../gcc/gcse.c:297:0: note: the first difference of corresponding
> definitions is field ‘next’
> struct occr *next;
> ^
> ../../gcc/postreload-gcse.c:163:0: note: a field of same name but different
> type is defined in another translation unit
> struct occr *next;
> ^
> ../../gcc/gcse.c:259:0: warning: type ‘struct expr’ violates one definition
> rule [-Wodr]
> struct expr
> ^
> ../../gcc/postreload-gcse.c:92:0: note: a different type is defined in
> another translation unit
> struct expr
> ^
> ../../gcc/gcse.c:264:0: note: the first difference of corresponding
> definitions is field ‘bitmap_index’
> int bitmap_index;
> ^
> ../../gcc/postreload-gcse.c:98:0: note: a field with different name is
> defined in another translation unit
> hashval_t hash;
> ^
> ../../gcc/predict.c:2499:0: warning: type ‘struct block_info_def’ violates
> one definition rule [-Wodr]
> typedef struct block_info_def
> ^
> ../../gcc/reg-stack.c:208:0: note: a different type is defined in another
> translation unit
> typedef struct block_info_def
> ^
> ../../gcc/predict.c:2502:0: note: the first difference of corresponding
> definitions is field ‘frequency’
> sreal frequency;
> ^
> ../../gcc/reg-stack.c:210:0: note: a field with different name is defined in
> another translation unit
> struct stack_def stack_in; /* Input stack configuration. */
> ^
> ../../gcc/lra-eliminations.c:80:0: warning: type ‘struct elim_table’ violates
> one definition rule [-Wodr]
> struct elim_table
> ^
> ../../gcc/reload1.c:264:0: note: a different type is defined in another
> translation unit
> struct elim_table
> ^
> ../../gcc/lra-eliminations.c:88:0: note: the first difference of
> corresponding definitions is field ‘previous_offset’
> HOST_WIDE_INT previous_offset;
> ^
> ../../gcc/reload1.c:268:0: note: a field with different name is defined in
> another translation unit
> HOST_WIDE_INT initial_offset; /* Initial difference between values. */
> ^
> ../../gcc/tree-ssa-ccp.c:169:0: warning: type ‘struct prop_value_d’ violates
> one definition rule [-Wodr]
> struct prop_value_d {
> ^
> ../../gcc/tree-ssa-copy.c:79:0: note: a different type is defined in another
> translation unit
> struct prop_value_d {
> ^
> ../../gcc/tree-ssa-ccp.c:171:0: note: the first difference of corresponding
> definitions is field ‘lattice_val’
> ccp_lattice_t lattice_val;
> ^
> ../../gcc/tree-ssa-copy.c:81:0: note: a field with different name is defined
> in another translation unit
> tree value;
> ^
> ../../gcc/profile.h:26:0: warning: type ‘struct edge_info’ violates one
> definition rule [-Wodr]
> struct edge_info
> ^
> ../../gcc/tree-ssa-dom.c:113:0: note: a different type is defined in another
> translation unit
> struct edge_info
> ^
> ../../gcc/profile.h:28:0: note: the first difference of corresponding
> definitions is field ‘count_valid’
> unsigned int count_valid:1;
> ^
> ../../gcc/tree-ssa-dom.c:117:0: note: a field with different name is defined
> in another translation unit
> tree lhs;
> ^
> ../../gcc/tree-ssa-loop-im.c:119:0: warning: type ‘struct mem_ref’ violates
> one definition rule [-Wodr]
> typedef struct mem_ref
> ^
> ../../gcc/tree-ssa-loop-prefetch.c:271:0: note: a different type is defined
> in another translation unit
> struct mem_ref
> ^
> ../../gcc/tree-ssa-loop-im.c:121:0: note: the first difference of
> corresponding definitions is field ‘id’
> unsigned id; /* ID assigned to the memory reference
> ^
> ../../gcc/tree-ssa-loop-prefetch.c:273:0: note: a field with different name
> is defined in another translation unit
> gimple stmt; /* Statement in that the reference appears. */
> ^
> ../../gcc/bitmap.c:2146:8: warning: type ‘struct output_info’ violates one
> definition rule [-Wodr]
> struct output_info
> ^
> ../../gcc/alloc-pool.c:342:0: note: a different type is defined in another
> translation unit
> struct output_info
> ^
> ../../gcc/bitmap.c:2148:12: note: the first difference of corresponding
> definitions is field ‘size’
> uint64_t size;
> ^
> ../../gcc/alloc-pool.c:344:0: note: a field with different name is defined in
> another translation unit
> unsigned long total_created;
> ^
> ../../gcc/gcse.c:320:0: warning: type ‘struct hash_table_d’ violates one
> definition rule [-Wodr]
> struct hash_table_d
> ^
> ../../gcc/cprop.c:96:0: note: a different type is defined in another
> translation unit
> struct hash_table_d
> ^
> ../../gcc/gcse.c:324:0: note: the first difference of corresponding
> definitions is field ‘table’
> struct expr **table;
> ^
> ../../gcc/cprop.c:100:0: note: a field of same name but different type is
> defined in another translation unit
> struct expr **table;
> ^
> ../../gcc/profile.c:77:0: warning: type ‘struct bb_info’ violates one
> definition rule [-Wodr]
> struct bb_info {
> ^
> ../../gcc/dse.c:424:0: note: a different type is defined in another
> translation unit
> struct bb_info
> ^
> ../../gcc/profile.c:78:0: note: the first difference of corresponding
> definitions is field ‘count_valid’
> unsigned int count_valid : 1;
> ^
> ../../gcc/dse.c:430:0: note: a field with different name is defined in
> another translation unit
> insn_info_t last_insn;
> ^
> ../../gcc/tree-ssa-structalias.c:1526:0: warning: type ‘struct topo_info’
> violates one definition rule [-Wodr]
> struct topo_info
> ^
> ../../gcc/ipa-cp.c:577:0: note: a different type is defined in another
> translation unit
> {
> ^
> ../../gcc/tree-ssa-structalias.c:1529:0: note: the first difference of
> corresponding definitions is field ‘visited’
> sbitmap visited;
> ^
> ../../gcc/ipa-cp.c:577:0: note: a field with different name is defined in
> another translation unit
> {
> ^
> ../../gcc/ggc-common.c:945:0: warning: type ‘struct ptr_hash_entry’ violates
> one definition rule [-Wodr]
> struct ptr_hash_entry
> ^
> ../../gcc/vec.c:83:0: note: a different type is defined in another
> translation unit
> void *ptr;
> ^
> ../../gcc/ggc-common.c:948:0: note: the first difference of corresponding
> definitions is field ‘loc’
> struct loc_descriptor *loc;
> ^
> ../../gcc/vec.c:83:0: note: a field of same name but different type is
> defined in another translation unit
> void *ptr;
> ^
> ../../gcc/cp/mangle.c:93:0: warning: type ‘struct globals’ violates one
> definition rule [-Wodr]
> typedef struct GTY(()) globals {
> ^
> ../../gcc/ggc-page.c:381:0: note: a different type is defined in another
> translation unit
> static struct globals
> ^
> ../../gcc/cp/mangle.c:96:0: note: the first difference of corresponding
> definitions is field ‘substitutions’
> vec<tree, va_gc> *substitutions;
> ^
> ../../gcc/ggc-page.c:387:0: note: a field with different name is defined in
> another translation unit
> page_entry *pages[NUM_ORDERS];
> ^
> ../../gcc/alloc-pool.c:342:0: warning: type ‘struct output_info’ violates one
> definition rule [-Wodr]
> struct output_info
> ^
> ../../gcc/bitmap.c:2146:0: note: a different type is defined in another
> translation unit
> struct output_info
> ^
> ../../gcc/alloc-pool.c:344:0: note: the first difference of corresponding
> definitions is field ‘total_created’
> unsigned long total_created;
> ^
> ../../gcc/bitmap.c:2148:0: note: a field with different name is defined in
> another translation unit
> uint64_t size;
> ^
> ../../gcc/ipa-devirt.c:2674:0: warning: type ‘struct type_change_info’
> violates one definition rule [-Wodr]
> struct type_change_info
> ^
> ../../gcc/ipa-prop.c:595:0: note: a different type is defined in another
> translation unit
> struct type_change_info
> ^
> ../../gcc/ipa-devirt.c:2681:0: note: the first difference of corresponding
> definitions is field ‘instance’
> tree instance;
> ^
> ../../gcc/ipa-prop.c:602:0: note: a field with different name is defined in
> another translation unit
> tree object;
> ^
> ../../gcc/gcse.c:294:0: warning: type ‘struct occr’ violates one definition
> rule [-Wodr]
> struct occr
> ^
> ../../gcc/postreload-gcse.c:160:0: note: a different type is defined in
> another translation unit
> struct occr
> ^
> ../../gcc/gcse.c:297:0: note: the first difference of corresponding
> definitions is field ‘next’
> struct occr *next;
> ^
> ../../gcc/postreload-gcse.c:163:0: note: a field of same name but different
> type is defined in another translation unit
> struct occr *next;
> ^
> ../../gcc/gcse.c:259:0: warning: type ‘struct expr’ violates one definition
> rule [-Wodr]
> struct expr
> ^
> ../../gcc/postreload-gcse.c:92:0: note: a different type is defined in
> another translation unit
> struct expr
> ^
> ../../gcc/gcse.c:264:0: note: the first difference of corresponding
> definitions is field ‘bitmap_index’
> int bitmap_index;
> ^
> ../../gcc/postreload-gcse.c:98:0: note: a field with different name is
> defined in another translation unit
> hashval_t hash;
> ^
> ../../gcc/predict.c:2499:0: warning: type ‘struct block_info_def’ violates
> one definition rule [-Wodr]
> typedef struct block_info_def
> ^
> ../../gcc/reg-stack.c:208:0: note: a different type is defined in another
> translation unit
> typedef struct block_info_def
> ^
> ../../gcc/predict.c:2502:0: note: the first difference of corresponding
> definitions is field ‘frequency’
> sreal frequency;
> ^
> ../../gcc/reg-stack.c:210:0: note: a field with different name is defined in
> another translation unit
> struct stack_def stack_in; /* Input stack configuration. */
> ^
> ../../gcc/lra-eliminations.c:80:0: warning: type ‘struct elim_table’ violates
> one definition rule [-Wodr]
> struct elim_table
> ^
> ../../gcc/reload1.c:264:0: note: a different type is defined in another
> translation unit
> struct elim_table
> ^
> ../../gcc/lra-eliminations.c:88:0: note: the first difference of
> corresponding definitions is field ‘previous_offset’
> HOST_WIDE_INT previous_offset;
> ^
> ../../gcc/reload1.c:268:0: note: a field with different name is defined in
> another translation unit
> HOST_WIDE_INT initial_offset; /* Initial difference between values. */
> ^
> ../../gcc/cp/semantics.c:4075:0: warning: type ‘struct nrv_data’ violates one
> definition rule [-Wodr]
> struct nrv_data
> ^
> ../../gcc/tree-nrv.c:58:0: note: a different type is defined in another
> translation unit
> struct nrv_data
> ^
> ../../gcc/cp/semantics.c:4081:0: note: the first difference of corresponding
> definitions is field ‘visited’
> hash_table<pointer_hash <tree_node> > visited;
> ^
> ../../gcc/tree-nrv.c:67:0: note: a field with different name is defined in
> another translation unit
> int modified;
> ^
> ../../gcc/tree-ssa-ccp.c:169:0: warning: type ‘struct prop_value_d’ violates
> one definition rule [-Wodr]
> struct prop_value_d {
> ^
> ../../gcc/tree-ssa-copy.c:79:0: note: a different type is defined in another
> translation unit
> struct prop_value_d {
> ^
> ../../gcc/tree-ssa-ccp.c:171:0: note: the first difference of corresponding
> definitions is field ‘lattice_val’
> ccp_lattice_t lattice_val;
> ^
> ../../gcc/tree-ssa-copy.c:81:0: note: a field with different name is defined
> in another translation unit
> tree value;
> ^
> ../../gcc/profile.h:26:0: warning: type ‘struct edge_info’ violates one
> definition rule [-Wodr]
> struct edge_info
> ^
> ../../gcc/tree-ssa-dom.c:113:0: note: a different type is defined in another
> translation unit
> struct edge_info
> ^
> ../../gcc/profile.h:28:0: note: the first difference of corresponding
> definitions is field ‘count_valid’
> unsigned int count_valid:1;
> ^
> ../../gcc/tree-ssa-dom.c:117:0: note: a field with different name is defined
> in another translation unit
> tree lhs;
> ^
> ../../gcc/tree-ssa-loop-im.c:119:0: warning: type ‘struct mem_ref’ violates
> one definition rule [-Wodr]
> typedef struct mem_ref
> ^
> ../../gcc/tree-ssa-loop-prefetch.c:271:0: note: a different type is defined
> in another translation unit
> struct mem_ref
> ^
> ../../gcc/tree-ssa-loop-im.c:121:0: note: the first difference of
> corresponding definitions is field ‘id’
> unsigned id; /* ID assigned to the memory reference
> ^
> ../../gcc/tree-ssa-loop-prefetch.c:273:0: note: a field with different name
> is defined in another translation unit
> gimple stmt; /* Statement in that the reference appears. */
> ^
> ../../gcc/gcse.c:320:0: warning: type ‘struct hash_table_d’ violates one
> definition rule [-Wodr]
> struct hash_table_d
> ^
> ../../gcc/cprop.c:58:0: note: a different type is defined in another
> translation unit
> struct occr
> ^
> ../../gcc/gcse.c:324:0: note: the first difference of corresponding
> definitions is field ‘table’
> struct expr **table;
> ^
> ../../gcc/cprop.c:58:0: note: a field of same name but different type is
> defined in another translation unit
> struct occr
> ^
> ../../gcc/profile.c:77:0: warning: type ‘struct bb_info’ violates one
> definition rule [-Wodr]
> struct bb_info {
> ^
> ../../gcc/dse.c:1079:0: note: a different type is defined in another
> translation unit
> free_read_records (bb_info_t bb_info)
> ^
> ../../gcc/profile.c:78:0: note: the first difference of corresponding
> definitions is field ‘count_valid’
> unsigned int count_valid : 1;
> ^
> ../../gcc/dse.c:1079:0: note: a field with different name is defined in
> another translation unit
> free_read_records (bb_info_t bb_info)
> ^
> ../../gcc/tree-ssa-structalias.c:1526:0: warning: type ‘struct topo_info’
> violates one definition rule [-Wodr]
> struct topo_info
> ^
> ../../gcc/ipa-cp.c:577:0: note: a different type is defined in another
> translation unit
> {
> ^
> ../../gcc/tree-ssa-structalias.c:1529:0: note: the first difference of
> corresponding definitions is field ‘visited’
> sbitmap visited;
> ^
> ../../gcc/ipa-cp.c:577:0: note: a field with different name is defined in
> another translation unit
> {
> ^
> ../../gcc/ggc-common.c:945:0: warning: type ‘struct ptr_hash_entry’ violates
> one definition rule [-Wodr]
> struct ptr_hash_entry
> ^
> ../../gcc/vec.c:83:0: note: a different type is defined in another
> translation unit
> void *ptr;
> ^
> ../../gcc/ggc-common.c:948:0: note: the first difference of corresponding
> definitions is field ‘loc’
> struct loc_descriptor *loc;
> ^
> ../../gcc/vec.c:83:0: note: a field of same name but different type is
> defined in another translation unit
> void *ptr;
> ^
> ../../gcc/cp/call.c:83:8: warning: type ‘struct conversion’ violates one
> definition rule [-Wodr]
> struct conversion {
> ^
> ../../libcpp/charset.c:613:0: note: a different type is defined in another
> translation unit
> const char *pair;
> ^
> ../../gcc/cp/call.c:85:19: note: the first difference of corresponding
> definitions is field ‘kind’
> conversion_kind kind;
> ^
> ../../libcpp/charset.c:613:0: note: a field with different name is defined in
> another translation unit
> const char *pair;
> ^
> ../../gcc/alloc-pool.c:342:0: warning: type ‘struct output_info’ violates one
> definition rule [-Wodr]
> struct output_info
> ^
> ../../gcc/bitmap.c:2146:0: note: a different type is defined in another
> translation unit
> struct output_info
> ^
> ../../gcc/alloc-pool.c:344:0: note: the first difference of corresponding
> definitions is field ‘total_created’
> unsigned long total_created;
> ^
> ../../gcc/bitmap.c:2148:0: note: a field with different name is defined in
> another translation unit
> uint64_t size;
> ^
> ../../gcc/ipa-devirt.c:2674:0: warning: type ‘struct type_change_info’
> violates one definition rule [-Wodr]
> struct type_change_info
> ^
> ../../gcc/ipa-prop.c:595:0: note: a different type is defined in another
> translation unit
> struct type_change_info
> ^
> ../../gcc/ipa-devirt.c:2681:0: note: the first difference of corresponding
> definitions is field ‘instance’
> tree instance;
> ^
> ../../gcc/ipa-prop.c:602:0: note: a field with different name is defined in
> another translation unit
> tree object;
> ^
> ../../gcc/gcse.c:294:0: warning: type ‘struct occr’ violates one definition
> rule [-Wodr]
> struct occr
> ^
> ../../gcc/postreload-gcse.c:160:0: note: a different type is defined in
> another translation unit
> struct occr
> ^
> ../../gcc/gcse.c:297:0: note: the first difference of corresponding
> definitions is field ‘next’
> struct occr *next;
> ^
> ../../gcc/postreload-gcse.c:163:0: note: a field of same name but different
> type is defined in another translation unit
> struct occr *next;
> ^
> ../../gcc/gcse.c:259:0: warning: type ‘struct expr’ violates one definition
> rule [-Wodr]
> struct expr
> ^
> ../../gcc/postreload-gcse.c:92:0: note: a different type is defined in
> another translation unit
> struct expr
> ^
> ../../gcc/gcse.c:264:0: note: the first difference of corresponding
> definitions is field ‘bitmap_index’
> int bitmap_index;
> ^
> ../../gcc/postreload-gcse.c:98:0: note: a field with different name is
> defined in another translation unit
> hashval_t hash;
> ^
> ../../gcc/predict.c:2499:0: warning: type ‘struct block_info_def’ violates
> one definition rule [-Wodr]
> typedef struct block_info_def
> ^
> ../../gcc/reg-stack.c:208:0: note: a different type is defined in another
> translation unit
> typedef struct block_info_def
> ^
> ../../gcc/predict.c:2502:0: note: the first difference of corresponding
> definitions is field ‘frequency’
> sreal frequency;
> ^
> ../../gcc/reg-stack.c:210:0: note: a field with different name is defined in
> another translation unit
> struct stack_def stack_in; /* Input stack configuration. */
> ^
> ../../gcc/lra-eliminations.c:80:0: warning: type ‘struct elim_table’ violates
> one definition rule [-Wodr]
> struct elim_table
> ^
> ../../gcc/reload1.c:264:0: note: a different type is defined in another
> translation unit
> struct elim_table
> ^
> ../../gcc/lra-eliminations.c:88:0: note: the first difference of
> corresponding definitions is field ‘previous_offset’
> HOST_WIDE_INT previous_offset;
> ^
> ../../gcc/reload1.c:268:0: note: a field with different name is defined in
> another translation unit
> HOST_WIDE_INT initial_offset; /* Initial difference between values. */
> ^
> ../../gcc/tree-ssa-ccp.c:169:0: warning: type ‘struct prop_value_d’ violates
> one definition rule [-Wodr]
> struct prop_value_d {
> ^
> ../../gcc/tree-ssa-copy.c:79:0: note: a different type is defined in another
> translation unit
> struct prop_value_d {
> ^
> ../../gcc/tree-ssa-ccp.c:171:0: note: the first difference of corresponding
> definitions is field ‘lattice_val’
> ccp_lattice_t lattice_val;
> ^
> ../../gcc/tree-ssa-copy.c:81:0: note: a field with different name is defined
> in another translation unit
> tree value;
> ^
> ../../gcc/profile.h:26:0: warning: type ‘struct edge_info’ violates one
> definition rule [-Wodr]
> struct edge_info
> ^
> ../../gcc/tree-ssa-dom.c:113:0: note: a different type is defined in another
> translation unit
> struct edge_info
> ^
> ../../gcc/profile.h:28:0: note: the first difference of corresponding
> definitions is field ‘count_valid’
> unsigned int count_valid:1;
> ^
> ../../gcc/tree-ssa-dom.c:117:0: note: a field with different name is defined
> in another translation unit
> tree lhs;
> ^
> ../../gcc/tree-ssa-loop-im.c:119:0: warning: type ‘struct mem_ref’ violates
> one definition rule [-Wodr]
> typedef struct mem_ref
> ^
> ../../gcc/tree-ssa-loop-prefetch.c:271:0: note: a different type is defined
> in another translation unit
> struct mem_ref
> ^
> ../../gcc/tree-ssa-loop-im.c:121:0: note: the first difference of
> corresponding definitions is field ‘id’
> unsigned id; /* ID assigned to the memory reference
> ^
> ../../gcc/tree-ssa-loop-prefetch.c:273:0: note: a field with different name
> is defined in another translation unit
> gimple stmt; /* Statement in that the reference appears. */
> ^
> ../../gcc/gcse.c:320:0: warning: type ‘struct hash_table_d’ violates one
> definition rule [-Wodr]
> struct hash_table_d
> ^
> ../../gcc/cprop.c:58:0: note: a different type is defined in another
> translation unit
> struct occr
> ^
> ../../gcc/gcse.c:324:0: note: the first difference of corresponding
> definitions is field ‘table’
> struct expr **table;
> ^
> ../../gcc/cprop.c:58:0: note: a field of same name but different type is
> defined in another translation unit
> struct occr
> ^
> ../../gcc/profile.c:77:0: warning: type ‘struct bb_info’ violates one
> definition rule [-Wodr]
> struct bb_info {
> ^
> ../../gcc/dse.c:1079:0: note: a different type is defined in another
> translation unit
> free_read_records (bb_info_t bb_info)
> ^
> ../../gcc/profile.c:78:0: note: the first difference of corresponding
> definitions is field ‘count_valid’
> unsigned int count_valid : 1;
> ^
> ../../gcc/dse.c:1079:0: note: a field with different name is defined in
> another translation unit
> free_read_records (bb_info_t bb_info)
> ^
> ../../gcc/tree-ssa-structalias.c:1526:0: warning: type ‘struct topo_info’
> violates one definition rule [-Wodr]
> struct topo_info
> ^
> ../../gcc/ipa-cp.c:577:0: note: a different type is defined in another
> translation unit
> {
> ^
> ../../gcc/tree-ssa-structalias.c:1529:0: note: the first difference of
> corresponding definitions is field ‘visited’
> sbitmap visited;
> ^
> ../../gcc/ipa-cp.c:577:0: note: a field with different name is defined in
> another translation unit
> {
> ^
> ../../gcc/ggc-common.c:945:0: warning: type ‘struct ptr_hash_entry’ violates
> one definition rule [-Wodr]
> struct ptr_hash_entry
> ^
> ../../gcc/vec.c:83:0: note: a different type is defined in another
> translation unit
> void *ptr;
> ^
> ../../gcc/ggc-common.c:948:0: note: the first difference of corresponding
> definitions is field ‘loc’
> struct loc_descriptor *loc;
> ^
> ../../gcc/vec.c:83:0: note: a field of same name but different type is
> defined in another translation unit
> void *ptr;
> ^
> /usr/bin/ld.gold.real: warning: using 'GLIBCXX_3.4' as version for
> '_ZNKSt15basic_stringbufIwSt11char_traitsIwESaIwEE3strEv' which is also named
> in version 'GLIBCXX_3.4.6' in script
> /usr/bin/ld.gold.real: warning: using 'GLIBCXX_3.4' as version for
> '_ZNKSs11_M_disjunctEPKc' which is also named in version 'GLIBCXX_3.4.5' in
> script
> /usr/bin/ld.gold.real: warning: using 'GLIBCXX_3.4' as version for
> '_ZNKSbIwSt11char_traitsIwESaIwEE11_M_disjunctEPKw' which is also named in
> version 'GLIBCXX_3.4.5' in script
> make[2]: *** [compare] Error 1
> make[1]: *** [stage3-bubble] Error 2
> make: *** [all] Error 2
