Portable build framework for OpenNTPD
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91 lines
2.8 KiB

AC_DEFUN([CHECK_OS_OPTIONS], [
CFLAGS="$CFLAGS -Wall -std=gnu99 -fno-strict-aliasing"
case $host_os in
*aix*)
HOST_OS=aix
if test "`echo $CC | cut -d ' ' -f 1`" != "gcc" ; then
CFLAGS="-qnoansialias $USER_CFLAGS"
fi
AC_SUBST([PLATFORM_LDADD], ['-lperfstat -lpthread'])
;;
*cygwin*)
HOST_OS=cygwin
;;
*darwin*)
HOST_OS=darwin
HOST_ABI=macosx
# weak seed on failure to open /dev/random, based on latest
# public source:
# http://www.opensource.apple.com/source/Libc/Libc-997.90.3/gen/FreeBSD/arc4random.c
USE_BUILTIN_ARC4RANDOM=yes
AC_DEFINE(SETEUID_BREAKS_SETUID,[],[setuid after seteuid does not work])
AC_DEFINE(BROKEN_SETREUID,[], [Broken setreuid])
AC_DEFINE(BROKEN_SETREGID,[], [Broken setregid])
AC_DEFINE(YYSTYPE_IS_DECLARED,[], [Broken bison])
AC_DEFINE([SPT_TYPE], [SPT_REUSEARGV])
;;
*freebsd*)
HOST_OS=freebsd
HOST_ABI=elf
# fork detection missing, weak seed on failure
# https://svnweb.freebsd.org/base/head/lib/libc/gen/arc4random.c?revision=268642&view=markup
USE_BUILTIN_ARC4RANDOM=yes
AC_SUBST([PROG_LDADD], ['-lthr'])
;;
*hpux*)
HOST_OS=hpux;
if test "`echo $CC | cut -d ' ' -f 1`" = "gcc" ; then
CFLAGS="$CFLAGS -mlp64"
else
CFLAGS="-g -O2 +DD64 +Otype_safety=off $USER_CFLAGS"
fi
CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=600 -D__STRICT_ALIGNMENT"
AC_SUBST([PLATFORM_LDADD], ['-lpthread'])
;;
*linux*)
HOST_OS=linux
HOST_ABI=elf
CPPFLAGS="$CPPFLAGS -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_SOURCE -D_GNU_SOURCE"
AC_DEFINE([SPT_TYPE], [SPT_REUSEARGV])
;;
*netbsd*)
HOST_OS=netbsd
HOST_ABI=elf
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/param.h>
#if __NetBSD_Version__ < 700000001
undefined
#endif
]], [[]])],
[ USE_BUILTIN_ARC4RANDOM=no ],
[ USE_BUILTIN_ARC4RANDOM=yes ]
)
CPPFLAGS="$CPPFLAGS -D_OPENBSD_SOURCE"
;;
*openbsd* | *bitrig*)
HOST_OS=openbsd
HOST_ABI=elf
AC_DEFINE([HAVE_ATTRIBUTE__BOUNDED__], [1], [OpenBSD gcc has bounded])
AC_DEFINE([HAVE_ATTRIBUTE__DEAD], [1], [OpenBSD gcc has __dead])
;;
*solaris*)
HOST_OS=solaris
HOST_ABI=elf
CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__ -D_XOPEN_SOURCE=600 -DBSD_COMP"
AC_SUBST([PLATFORM_LDADD], ['-lnsl -lsocket'])
;;
*) ;;
esac
AM_CONDITIONAL([HOST_AIX], [test x$HOST_OS = xaix])
AM_CONDITIONAL([HOST_CYGWIN], [test x$HOST_OS = xcygwin])
AM_CONDITIONAL([HOST_DARWIN], [test x$HOST_OS = xdarwin])
AM_CONDITIONAL([HOST_FREEBSD], [test x$HOST_OS = xfreebsd])
AM_CONDITIONAL([HOST_HPUX], [test x$HOST_OS = xhpux])
AM_CONDITIONAL([HOST_LINUX], [test x$HOST_OS = xlinux])
AM_CONDITIONAL([HOST_NETBSD], [test x$HOST_OS = xnetbsd])
AM_CONDITIONAL([HOST_OPENBSD], [test x$HOST_OS = xopenbsd])
AM_CONDITIONAL([HOST_SOLARIS], [test x$HOST_OS = xsolaris])
])