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dnl $Id$
dnl Process this file with autoconf to produce a configure script.
dnl
dnl Copyright (C) 2016-2020 Karl Berry <tex-live@tug.org>
dnl Copyright (C) 2009-2013 Peter Breitenlohner <tex-live@tug.org>
dnl
dnl This file is free software; the copyright holder
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl
m4_include([version.ac])[] dnl define zlib_version
AC_INIT([zlib (TeX Live)], zlib_version, [tex-k@tug.org])
AC_PREREQ([2.65])
AC_CONFIG_SRCDIR([zlib-src/zlib.h])
AC_CONFIG_AUX_DIR([../../build-aux])
AC_CONFIG_MACRO_DIR([../../m4])
KPSE_BASIC([zlib])
AC_PROG_CC
AC_PROG_RANLIB
AC_PROG_LN_S
KPSE_COMPILER_VISIBILITY
AC_CONFIG_HEADERS([config.h])[]dnl unused, to avoid zillions of -D's on command line
AM_CONDITIONAL([build], [test "x$enable_build" != xno])
AC_CHECK_HEADER([errno.h],
[ZLIB_DEFINES=],
[ZLIB_DEFINES="-DNO_ERRNO_H"])
AC_CHECK_HEADERS([unistd.h])
ZCONF_SRC=[zlib-src/zconf.h.in]
if test x"$ac_cv_header_unistd_h" = xyes; then
zconf_sh='sed <$srcdir/'"$ZCONF_SRC"' "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\\(.*\\) may be/ 1\\1 was/" >'
else
zconf_sh='cp $srcdir/'"$ZCONF_SRC"
fi
KPSE_LARGEFILE([ZLIB_DEFINES], [_LARGEFILE64_SOURCE])
AC_CONFIG_COMMANDS([zconf.h],
[eval "$zconf_sh" zconf.h],
[zconf_sh='$zconf_sh'])
AC_MSG_CHECKING([for mmap support])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
caddr_t hello() {
return mmap((caddr_t)0, (off_t)0, PROT_READ, MAP_SHARED, 0, (off_t)0);
}]])],
[AC_MSG_RESULT([yes])
ZLIB_DEFINES="$ZLIB_DEFINES -DUSE_MMAP"],
[AC_MSG_RESULT([no])])
KPSE_CHECK_WIN32
if test "x$kpse_cv_have_win32" != xno; then
ZLIB_DEFINES="$ZLIB_DEFINES -DNO_VIZ"
fi
AC_SUBST([ZLIB_DEFINES])
AC_SUBST([ZLIB_TREE], [zlib-src])
if test -f $srcdir/$ZLIB_TREE/zconf.h; then
AC_MSG_ERROR([Sorry, you must remove the file $ZLIB_TREE/zconf.h])
fi
AC_CONFIG_FILES([Makefile include/Makefile])
AC_OUTPUT
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