File: configure.ac

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msort 8.53-2.2
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AC_PREREQ(2.59)
AC_INIT(msort, 8.53, billposer@alum.mit.edu)
AM_CONFIG_HEADER([config.h])
AM_INIT_AUTOMAKE

AC_DEFUN([AC_C_LONG_LONG],
[AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
[if test "$GCC" = yes; then
  ac_cv_c_long_long=yes
  else
        AC_TRY_COMPILE(,[long long int i;],
   ac_cv_c_long_long=yes,
   ac_cv_c_long_long=no)
   fi])
   if test $ac_cv_c_long_long = yes; then
     AC_DEFINE(HAVE_LONG_LONG, 1, [compiler understands long long])
   fi
])

AC_DEFUN([AC_C_PRINTF_THSEP],
[AC_TRY_COMPILE(,[printf("%'2d",101);],ac_cv_c_printf_thsep=yes,ac_cv_c_printf_thsep=no)
 if test $ac_cv_c_printf_thsep = yes; then
  AC_DEFINE(HAVE_PRINTF_THSEP, 1, [compiler understands printf flag for thousands separation in ints])
 fi
])

AC_ARG_ENABLE(nocomparisoncount,
[--disable-comparisoncount Do not count comparisons.],
[case "${enableval}" in
  yes) nocomparisoncount=true ;;
  no)  nocomparisoncount=false ;;
  *) AC_MSG_ERROR(bad value ${enableval} for --enable-comparisoncount) ;;
esac],[nocomparisoncount=true])

AM_CONDITIONAL(NOCOMPARISONCNT,test "$nocomparisoncount" = false)

AC_ARG_ENABLE(allocaok,
[--disable-allocaok Do not use alloca - use heap instead.],
[case "${enableval}" in
  yes) allocaok=true ;;
  no)  allocaok=false ;;
  *) AC_MSG_ERROR(bad value ${enableval} for --enable-allocaok) ;;
esac],[allocaok=true])

AM_CONDITIONAL(ALLOCAOK,test "$allocaok" = true)

AC_ARG_ENABLE(uninum,
[--disable-uninum. Do not link uninum library.],
[case "${enableval}" in
  yes) uninum=true ;;
  no)  uninum=false ;;
  *) AC_MSG_ERROR(bad value ${enableval} for --enable-uninum) ;;
esac],[uninum=true])

AM_CONDITIONAL(UNINUMOK,test "$uninum" = true)

AC_ARG_ENABLE(utf8proc,
[--disable-utf8proc. Use the icu library instead of utf8proc.],
[case "${enableval}" in
  yes) utf8proc=true ;;
  no)  utf8proc=false ;;
  *) AC_MSG_ERROR(bad value ${enableval} for --enable-utf8proc) ;;
esac],[utf8proc=true])

AM_CONDITIONAL(UTF8PROCOK,test "$utf8proc" = true)

AC_ARG_ENABLE(debugbuild,
[--enable-debugbuild. Compile for debugging.],
[case "${enableval}" in
  yes) debugbuild=true ;;
  no)  debugbuild=false ;;
  *) AC_MSG_ERROR(bad value ${enableval} for --enable-debugbuild) ;;
esac],[debugbuild=false])

AM_CONDITIONAL(DEBUGBUILD,test "$debugbuild" = true)

# Checks for programs.
AC_PROG_CC
if ${debugbuild}; then
   CFLAGS="-ggdb -g3" 
else
   CFLAGS="-g -O2" 
fi

AC_PROG_INSTALL

# Checks for libraries.
AC_CHECK_LIB([tre], [tre_regwcomp],,[AC_MSG_ERROR([libtre not found. see http://laurikari.net/tre/])])
AC_CHECK_LIB([intl], [gettext],AC_DEFINE([HAVE_LIBINTL], [1],[Define to 1 if you have libintl.]),)
#AM_GNU_GETTEXT

# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([alloca.h ctype.h errno.h gnu/libc-version.h langinfo.h libintl.h limits.h locale.h stdargs.h stddef.h stdint.h stdlib.h string.h sys/file.h sys/stat.h time.h tre/tre.h unicode/umachine.h unicode/unorm.h  uninum/unicode.h uninum/nsdefs.h uninum/uninum.h unistd.h wchar.h wctype.h])

if ${utf8proc}; then
AC_CHECK_HEADER([utf8proc.h],[AC_DEFINE([HAVE_UTF8PROC_H], [1],[Define to 1 if you have <utf8proc.h>.])],[AC_MSG_ERROR([LIB UTF8PROC and its header is obligatory. See http://www.flexiguided.de/publications.utf8proc.en.html])])
fi

if ${uninum}; then
AC_CHECK_LIB([uninum],[uninum_version],,[AC_MSG_ERROR([libuninum not found])])
fi

# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_C_LONG_LONG
AC_C_LONG_DOUBLE
AC_C_PRINTF_THSEP

# Checks for library functions.
AC_CHECK_FUNCS([getopt_long malloc mbstowcs nl_langinfo realloc regwcomp regwexec setlocale strchr strrchr strtod strtol uninum_gmp_version wcschr wcscmp wcscasecmp wcsxfrm])
AC_CONFIG_FILES([Makefile])
AC_OUTPUT