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bistromathic: beware of portability of readline

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Don't try to build bistromathic if we don't have readline.
Reported by Bruno Haible.
https://lists.gnu.org/r/bug-bison/2020-05/msg00028.html

* configure.ac (ENABLE_BISTROMATHIC): New.
* examples/c/bistromathic/local.mk: Use it.
* examples/c/bistromathic/bistromathic.test: Exit 77 for skip.
This commit is contained in:
Akim Demaille
2020-05-03 16:05:03 +02:00
parent da5c072a62
commit 160df220b1
3 changed files with 21 additions and 11 deletions
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7
configure.ac
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@@ -331,6 +331,13 @@ AC_MSG_RESULT([$suppfile])
# Whether we cannot run the compiled bison.
AM_CONDITIONAL([CROSS_COMPILING], [test "$cross_compiling" = yes])
# Build bistromathic if we have the lib and both readline/readline.h
# and readline/history.h.
AM_CONDITIONAL([ENABLE_BISTROMATHIC],
[test "$gl_cv_lib_readline" != no &&
test "$ac_cv_header_readline_readline_h" = yes &&
test "$ac_cv_header_readline_history_h" = yes])
AM_MISSING_PROG([AUTOM4TE], [autom4te])
# Needed by tests/atlocal.in.
AC_SUBST([GCC])