diff options
Diffstat (limited to 'm4/ptyfuncs.m4')
| -rw-r--r-- | m4/ptyfuncs.m4 | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/m4/ptyfuncs.m4 b/m4/ptyfuncs.m4 new file mode 100644 index 0000000000..3e37b5a23c --- /dev/null +++ b/m4/ptyfuncs.m4 @@ -0,0 +1,35 @@ +AC_DEFUN([AX_CHECK_PTYFUNCS], [ + dnl This is a workaround for a bug in Debian package + dnl libbsd-dev-0.3.0-1. Once we no longer support that + dnl package we can remove the addition of -Werror to + dnl CPPFLAGS. + AX_SAVEVAR_SAVE(CPPFLAGS) + CPPFLAGS="$CPPFLAGS -Werror" + AC_CHECK_HEADER([libutil.h],[ + AC_DEFINE([INCLUDE_LIBUTIL_H],[<libutil.h>],[libutil header file name]) + ]) + AX_SAVEVAR_RESTORE(CPPFLAGS) + AC_CACHE_CHECK([for openpty et al], [ax_cv_ptyfuncs_libs], [ + for ax_cv_ptyfuncs_libs in -lutil "" NOT_FOUND; do + if test "x$ax_cv_ptyfuncs_libs" = "xNOT_FOUND"; then + AC_MSG_FAILURE([Unable to find library for openpty and login_tty]) + fi + AX_SAVEVAR_SAVE(LIBS) + LIBS="$LIBS $ax_cv_ptyfuncs_libs" + AC_LINK_IFELSE([AC_LANG_SOURCE([ +#ifdef INCLUDE_LIBUTIL_H +#include INCLUDE_LIBUTIL_H +#endif +int main(void) { + openpty(0,0,0,0,0); + login_tty(0); +} +])],[ + break + ],[]) + AX_SAVEVAR_RESTORE(LIBS) + done + ]) + PTYFUNCS_LIBS="$ax_cv_ptyfuncs_libs" + AC_SUBST(PTYFUNCS_LIBS) +]) |