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[bison.git]
/
m4
/
warning.m4
1
AC_DEFUN(BISON_WARNING,
2
[AC_MSG_CHECKING(whether compiler accepts $1)
3
AC_SUBST(WARNING_CFLAGS)
4
ac_save_CFLAGS="$CFLAGS"
5
CFLAGS="$CFLAGS $1"
6
AC_TRY_COMPILE(,
7
[int x;],
8
WARNING_CFLAGS="$WARNING_CFLAGS $1"
9
AC_MSG_RESULT(yes),
10
AC_MSG_RESULT(no))
11
CFLAGS="$ac_save_CFLAGS"])