# $FreeBSD$

# Process this file with autoconf to produce a configure script.
AC_INIT(bsdtar, @VERSION@, kientzle@freebsd.org)
AM_INIT_AUTOMAKE(bsdtar, @VERSION@)
AC_CONFIG_SRCDIR([bsdtar.c])
AM_CONFIG_HEADER([config.h])

# Checks for programs.
AC_PROG_CC
AC_PROG_YACC

# Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_CHECK_HEADERS([bzlib.h fcntl.h inttypes.h langinfo.h limits.h locale.h paths.h stdint.h stdlib.h string.h sys/ioctl.h sys/param.h unistd.h zlib.h])

# Checks for libraries.
AC_CHECK_LIB([z], [inflate])
AC_CHECK_LIB([bz2], [BZ2_bzDecompressInit])
AC_CHECK_LIB([archive], [archive_version])

# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_UID_T
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
AC_CHECK_TYPE(id_t, [unsigned long])
AC_CHECK_MEMBERS([struct stat.st_rdev, struct stat.st_mtimespec.tv_nsec, struct stat.st_mtim.tv_nsec])


AC_CHECK_DECL([D_MD_ORDER],
[AC_DEFINE(HAVE_D_MD_ORDER, 1, [Define to 1 if nl_langinfo supports D_MD_ORDER])],
[],
[#if HAVE_LANGINFO_H
#include <langinfo.h>
#endif
])

AC_FUNC_FNMATCH
AC_CHECK_DECL([FNM_LEADING_DIR],
[AC_DEFINE(HAVE_FNM_LEADING_DIR, 1, [Define to 1 if fnmatch(3) supports the FNM_LEADING_DIR flag])],
[],
[#if HAVE_FNMATCH
#define _GNU_SOURCE /* Required on Linux to get GNU extensions */
#include <fnmatch.h>
#endif
])

# Check for dirent.d_namlen field explicitly
AC_CHECK_MEMBER(struct dirent.d_namlen,,,
[#if HAVE_DIRENT_H
#include <dirent.h>
#endif
])

# Check for ACL support
AC_CHECK_HEADERS([sys/acl.h])
AC_CHECK_LIB([acl],[acl_get_file])

AC_CHECK_TYPES(acl_permset_t,,,
[#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_SYS_ACL_H
#include <sys/acl.h>
#endif
])

# The "acl_get_perm()" function was omitted from the POSIX draft.
# (It's a pretty obvious oversight; otherwise, there's no way to
# test for specific permissions in a permset.)  Linux uses the obvious
# name, FreeBSD adds _np to mark it as "non-Posix extension."
# Test for both as a double-check that we really have POSIX-style ACL support.
AC_CHECK_FUNCS(acl_get_perm_np acl_get_perm,,,
[#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_SYS_ACL_H
#include <sys/acl.h>
#endif
])

# Checks for library functions.
AC_PROG_GCC_TRADITIONAL
AC_FUNC_LSTAT
AC_HEADER_MAJOR
AC_FUNC_MALLOC
AC_FUNC_STAT
AC_FUNC_STRFTIME
AC_FUNC_VPRINTF
AC_CHECK_TYPES([uintmax_t, unsigned long long])
AC_CHECK_FUNCS([chflags fchdir ftruncate getopt_long memmove memset nl_langinfo reallocf setlocale strchr strdup strerror strrchr])

#
# If any of the common 64-bit types is defined, set "int64_t"
#
AC_CHECK_TYPE(__int64_t, [long long])
AC_CHECK_TYPE(_int64_t, [__int64_t])
AC_CHECK_TYPE(int64_t, [_int64_t])

#
# If any of the common 64-bit unsigned types is defined, set "uint64_t"
#
AC_CHECK_TYPE(__uint64_t, [unsigned long long])
AC_CHECK_TYPE(_uint64_t, [__uint64_t])
AC_CHECK_TYPE(u_int64_t, [_uint64_t])
AC_CHECK_TYPE(uint64_t, [u_int64_t])

#define	HAVE_CHFLAGS		1

# Additional requirements
AC_SYS_LARGEFILE

AC_CONFIG_FILES([Makefile])
AC_OUTPUT