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#serial 2
dnl Misc lib-related macros for fileutils, sh-utils, textutils.
AC_DEFUN(jm_LIB_CHECK,
[
# Check for libypsec.a on Dolphin M88K machines.
AC_CHECK_LIB(ypsec, main)
# m88k running dgux 5.4 needs this
AC_CHECK_LIB(ldgc, main)
# Some programs need to link with -lm. printf does if it uses
# lib/strtod.c which uses pow. And seq uses the math functions,
# floor, modf, rint. And factor uses sqrt. And sleep uses fesetround.
# Save a copy of $LIBS and add $FLOOR_LIBM before these tests
# Check for these math functions used by seq.
ac_su_saved_lib="$LIBS"
LIBS="$LIBS -lm"
AC_CHECK_FUNCS(floor modf rint)
LIBS="$ac_su_saved_lib"
AC_SUBST(SQRT_LIBM)
AC_CHECK_FUNCS(sqrt)
if test $ac_cv_func_sqrt = no; then
AC_CHECK_LIB(m, sqrt, [SQRT_LIBM=-lm])
fi
AC_SUBST(FESETROUND_LIBM)
AC_CHECK_FUNCS(fesetround)
if test $ac_cv_func_fesetround = no; then
AC_CHECK_LIB(m, fesetround, [FESETROUND_LIBM=-lm])
fi
# The -lsun library is required for YP support on Irix-4.0.5 systems.
# m88k/svr3 DolphinOS systems using YP need -lypsec for id.
AC_SEARCH_LIBS(yp_match, [sun ypsec])
# SysV needs -lsec, older versions of Linux need -lshadow for
# shadow passwords.
AC_SEARCH_LIBS(getspnam, [shadow sec])
# Requirements for su.c.
AC_CHECK_MEMBERS((struct spwd.sp_pwdp))
AC_CHECK_FUNCS(getspnam)
AC_CHECK_HEADERS(shadow.h)
# SCO-ODT-3.0 is reported to need -lufc for crypt.
# NetBSD needs -lcrypt for crypt.
ac_su_saved_lib="$LIBS"
AC_SEARCH_LIBS(crypt, [ufc crypt], [LIB_CRYPT="$ac_cv_search_crypt"])
LIBS="$ac_su_saved_lib"
AC_SUBST(LIB_CRYPT)
])
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