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dnl $Id: configure.in,v 1.10 2006/10/31 20:44:30 mccannwj Exp $
dnl Process this file with autoconf to produce a configure script.
AC_DEFUN([COMPILE_WARNINGS],[
if test -z "$1" ; then
default_compile_warnings=yes
else
default_compile_warnings="$1"
fi
AC_ARG_ENABLE(compile-warnings,
[ --enable-compile-warnings=[no/minimum/yes/maximum/error] Turn on compiler warnings.],, [enable_compile_warnings="$default_compile_warnings"])
warnCFLAGS=
if test "x$GCC" != xyes; then
enable_compile_warnings=no
fi
warning_flags=
realsave_CFLAGS="$CFLAGS"
case "$enable_compile_warnings" in
no)
warning_flags=
;;
minimum)
warning_flags="-Wall"
;;
yes)
warning_flags="-Wall -Wmissing-prototypes"
;;
maximum|error)
warning_flags="-Wall -Wmissing-prototypes -Wnested-externs -Wpointer-arith"
CFLAGS="$warning_flags $CFLAGS"
for option in -Wno-sign-compare; do
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $option"
AC_MSG_CHECKING([whether gcc understands $option])
AC_TRY_COMPILE([], [],
has_option=yes,
has_option=no,)
CFLAGS="$SAVE_CFLAGS"
AC_MSG_RESULT($has_option)
if test $has_option = yes; then
warning_flags="$warning_flags $option"
fi
unset has_option
unset SAVE_CFLAGS
done
unset option
if test "$enable_compile_warnings" = "error" ; then
warning_flags="$warning_flags -Werror"
fi
;;
*)
AC_MSG_ERROR(Unknown argument '$enable_compile_warnings' to --enable-compile-warnings)
;;
esac
CFLAGS="$realsave_CFLAGS"
AC_MSG_CHECKING(what warning flags to pass to the C compiler)
AC_MSG_RESULT($warning_flags)
AC_ARG_ENABLE(iso-c,
[ --enable-iso-c Try to warn if code is not ISO C ],,
enable_iso_c=no)
AC_MSG_CHECKING(what language compliance flags to pass to the C compiler)
complCFLAGS=
if test "x$enable_iso_c" != "xno"; then
if test "x$GCC" = "xyes"; then
case " $CFLAGS " in
*[\ \ ]-ansi[\ \ ]*) ;;
*) complCFLAGS="$complCFLAGS -ansi" ;;
esac
case " $CFLAGS " in
*[\ \ ]-pedantic[\ \ ]*) ;;
*) complCFLAGS="$complCFLAGS -pedantic" ;;
esac
fi
fi
AC_MSG_RESULT($complCFLAGS)
WARN_CFLAGS="$warning_flags $complCFLAGS"
AC_SUBST(WARN_CFLAGS)
])
AC_INIT(fitscut.c)
AM_CONFIG_HEADER(config.h)
AM_INIT_AUTOMAKE(fitscut,1.4.4)
dnl Checks for programs.
AC_PROG_CC
AC_PROG_LN_S
AC_PROG_INSTALL
AC_PROG_CPP
dnl Checks for header files.
AC_STDC_HEADERS
AC_CHECK_HEADERS(fcntl.h sys/time.h unistd.h)
AC_CHECK_HEADERS(string.h)
AC_CHECK_HEADERS(stdlib.h,)
AC_CHECK_HEADERS(png.h,,AC_MSG_ERROR([png.h is required to build fitscut]))
AC_CHECK_HEADERS(jpeglib.h,,AC_MSG_ERROR([jpeglib.h is required to build fitscut]))
AC_CHECK_HEADERS(cfitsio/fitsio.h, have_cfitsio_fitsio_h=yes, have_cfitsio_fitsio_h=no)
AC_CHECK_HEADERS(fitsio.h, have_fitsio_h=yes, have_fitsio_h=no)
AM_CONDITIONAL(HAVE_CFITSIO_FITSIO_H, test "x$have_cfitsio_fitsio_h" = "xyes")
AM_CONDITIONAL(HAVE_FITSIO_H, test "x$have_cfitsio_fitsio_h" = "xyes")
if test "x$have_cfitsio_fitsio_h" != "xyes" -a "x$have_fitsio_h" != "xyes"; then
AC_MSG_ERROR([fitsio.h is required to build fitscut])
fi
dnl Checks for libraries.
AC_CHECK_LIB(m, sin)
AC_CHECK_LIB(socket, connect)
AC_CHECK_LIB(nsl, main)
AC_CHECK_LIB(png, png_read_info)
AC_CHECK_LIB(jpeg, jpeg_destroy_decompress)
AC_CHECK_LIB(cfitsio, ffvers)
AC_CHECK_LIB(wcstools, wcsinit, have_libwcs=yes, have_libwcs=no)
AM_CONDITIONAL(HAVE_LIBWCS, test "x$have_libwcs" = "xyes")
if test "x$have_libwcs" = "xyes"; then
AC_DEFINE([HAVE_LIBWCS], 1, [Defined when libwcstools is detected])
WCS_LIBS="-lwcstools"
AC_SUBST(WCS_LIBS)
fi
COMPILE_WARNINGS(yes)
CFLAGS="$CFLAGS $WARN_CFLAGS"
AC_SUBST(CFLAGS)
dnl Checks for library functions.
AC_TYPE_SIGNAL
AC_OUTPUT(Makefile)
AC_OUTPUT(fitscut.spec)
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