dnl Process this file with autoconf to produce a configure script.
AC_INIT(onig, 6.8.2)

AC_CONFIG_MACRO_DIR([m4])

AM_INIT_AUTOMAKE([-Wno-portability 1.14])
AC_CONFIG_HEADER(src/config.h)


dnl default value for STATISTICS
STATISTICS=""
AC_ARG_WITH(statistics,
	[  --with-statistics       take matching time statistical data], 
	[ STATISTICS=-DONIG_DEBUG_STATISTICS ])
AC_SUBST(STATISTICS)


dnl check for POSIX API
AC_ARG_ENABLE(posix-api,
[  --enable-posix-api      turn on to include POSIX API [[default=yes]]],
[\
case "${enableval}" in
 yes) enable_posix_api=yes ;;
 no)  enable_posix_api=no ;;
 *)   AC_MSG_ERROR(bad value for --enable-posix-api) ;;
esac],
enable_posix_api=yes)
AM_CONDITIONAL(ENABLE_POSIX_API, test x"${enable_posix_api}" = xyes)


dnl check for CRNL_AS_LINE_TERMINATOR
AC_ARG_ENABLE(crnl-as-line-terminator,
	[  --enable-crnl-as-line-terminator   deprecated],
	[crnl_as_line_terminator=$enableval])
if test "${crnl_as_line_terminator}" = yes; then
  AC_DEFINE(USE_CRNL_AS_LINE_TERMINATOR,1,[Define if enable CR+NL as line terminator])
fi


dnl Checks for programs.
AC_PROG_CC
AM_PROG_LIBTOOL
LTVERSION="5:0:0"
AC_SUBST(LTVERSION)

AC_PROG_INSTALL
AC_PROG_MAKE_SET

dnl Checks for libraries.

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(stdlib.h string.h strings.h limits.h sys/time.h unistd.h sys/times.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(long, 4)
AC_C_CONST
AC_HEADER_TIME

dnl Checks for library functions.
AC_FUNC_ALLOCA
AC_FUNC_MEMCMP

AC_CACHE_CHECK(for prototypes, _cv_have_prototypes,
  [AC_TRY_COMPILE([int foo(int x) { return 0; }], [return foo(10);],
	_cv_have_prototypes=yes,
	_cv_have_prototypes=no)])
if test "$_cv_have_prototypes" = yes; then
  AC_DEFINE(HAVE_PROTOTYPES,1,[Define if compilerr supports prototypes])
fi

AC_CACHE_CHECK(for variable length prototypes and stdarg.h, _cv_stdarg,
  [AC_TRY_COMPILE([
#include <stdarg.h>
int foo(int x, ...) {
	va_list va;
	va_start(va, x);
	va_arg(va, int);
	va_arg(va, char *);
	va_arg(va, double);
	return 0;
}
], [return foo(10, "", 3.14);],
	_cv_stdarg=yes,
	_cv_stdarg=no)])
if test "$_cv_stdarg" = yes; then
  AC_DEFINE(HAVE_STDARG_PROTOTYPES,1,[Define if compiler supports stdarg prototypes])
fi


AC_OUTPUT([Makefile src/Makefile test/Makefile sample/Makefile onig-config], [chmod +x onig-config])