bpo-40334: Fix errors in parse_string.c with old compilers

[pablogsal]

https://bugs.python.org/issue40334

[pablogsal]

This fixes this buildbot errors:

https://buildbot.python.org/all/#/builders/6/builds/824/steps/5/logs/stdio

/home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c: In function ‘fstring_shift_seq_locations’: /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:278:5: error: ‘for’ loop initial declarations are only allowed in C99 mode for (Py_ssize_t i = 0, l = asdl_seq_LEN(seq); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:278:5: note: use option -std=c99 or -std=gnu99 to compile your code /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c: In function ‘fstring_shift_arguments’: /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:325:5: error: ‘for’ loop initial declarations are only allowed in C99 mode for (Py_ssize_t i = 0, l = asdl_seq_LEN(args->posonlyargs); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:330:21: error: redefinition of ‘i’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(args->args); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:325:21: note: previous definition of ‘i’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(args->posonlyargs); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:330:28: error: redefinition of ‘l’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(args->args); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:325:28: note: previous definition of ‘l’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(args->posonlyargs); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:330:5: error: ‘for’ loop initial declarations are only allowed in C99 mode for (Py_ssize_t i = 0, l = asdl_seq_LEN(args->args); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:339:21: error: redefinition of ‘i’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(args->kwonlyargs); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:330:21: note: previous definition of ‘i’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(args->args); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:339:28: error: redefinition of ‘l’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(args->kwonlyargs); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:330:28: note: previous definition of ‘l’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(args->args); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:339:5: error: ‘for’ loop initial declarations are only allowed in C99 mode for (Py_ssize_t i = 0, l = asdl_seq_LEN(args->kwonlyargs); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c: In function ‘fstring_shift_children_locations’: /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:387:13: error: ‘for’ loop initial declarations are only allowed in C99 mode for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.ListComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:394:29: error: redefinition of ‘i’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.SetComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:387:29: note: previous definition of ‘i’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.ListComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:394:36: error: redefinition of ‘l’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.SetComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:387:36: note: previous definition of ‘l’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.ListComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:394:13: error: ‘for’ loop initial declarations are only allowed in C99 mode for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.SetComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:402:29: error: redefinition of ‘i’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.DictComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:394:29: note: previous definition of ‘i’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.SetComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:402:36: error: redefinition of ‘l’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.DictComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:394:36: note: previous definition of ‘l’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.SetComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:402:13: error: ‘for’ loop initial declarations are only allowed in C99 mode for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.DictComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:409:29: error: redefinition of ‘i’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.GeneratorExp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:402:29: note: previous definition of ‘i’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.DictComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:409:36: error: redefinition of ‘l’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.GeneratorExp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:402:36: note: previous definition of ‘l’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.DictComp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:409:13: error: ‘for’ loop initial declarations are only allowed in C99 mode for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.GeneratorExp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:430:29: error: redefinition of ‘i’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.Call.keywords); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:409:29: note: previous definition of ‘i’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.GeneratorExp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:430:36: error: redefinition of ‘l’ for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.Call.keywords); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:409:36: note: previous definition of ‘l’ was here for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.GeneratorExp.generators); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:430:13: error: ‘for’ loop initial declarations are only allowed in C99 mode for (Py_ssize_t i = 0, l = asdl_seq_LEN(n->v.Call.keywords); i < l; i++){^ /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c: In function ‘fstring_fix_expr_location’: /home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Parser/pegen/parse_string.c:521:13: error: ‘for’ loop initial declarations are only allowed in C99 mode for (char* p = parent_str; p < substr; p++){^ 

[bedevere-bot]

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