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yacc.c: fix warnings about undefined macros

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For instance with GCC 4.9 and --enable-gcc-warnings:

    25. input.at:1201: testing Torturing the Scanner ...
    ../../tests/input.at:1344: $CC $CFLAGS $CPPFLAGS  -c -o input.o input.c
    stderr:
    input.c:239:18: error: "__STDC_VERSION__" is not defined [-Werror=undef]
     # elif 199901 <= __STDC_VERSION__
                      ^
    input.c:256:18: error: "__STDC_VERSION__" is not defined [-Werror=undef]
     # elif 199901 <= __STDC_VERSION__
                      ^

* data/skeletons/yacc.c: Check that __STDC_VERSION__ is defined before
using it.
This commit is contained in:
Akim Demaille
2019-10-04 06:49:40 +02:00
parent 1133220416
commit bc96b757ca
1 changed files with 2 additions and 2 deletions
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4
data/skeletons/yacc.c
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@@ -419,7 +419,7 @@ typedef short yytype_int16;
# elif defined ptrdiff_t && defined PTRDIFF_MAX
# define YYPTRDIFF_T ptrdiff_t
# define YYPTRDIFF_MAXIMUM PTRDIFF_MAX
# elif 199901 <= __STDC_VERSION__
# elif defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
# define YYPTRDIFF_T ptrdiff_t
# include <stdint.h> /* INFRINGES ON USER NAME SPACE */
@@ -436,7 +436,7 @@ typedef short yytype_int16;
# define YYSIZE_T __SIZE_TYPE__
# elif defined size_t
# define YYSIZE_T size_t
# elif 199901 <= __STDC_VERSION__
# elif defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
# define YYSIZE_T size_t
# else