dnl Process this file with autoconf to produce a configure script.
AC_INIT(WP_2D.C)

AM_INIT_AUTOMAKE(libWPCG, 0.9.3)

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_PROG_RANLIB

dnl Checks for libraries.
AC_CHECK_LIB(GL, glPushMatrix, ,[AC_MSG_ERROR([libGL not found])],)

AC_CHECK_LIB(GLU, gluLookAt, ,[AC_MSG_ERROR([libGLU not found])],)

AC_CHECK_LIB(glut, glutInit, ,[AC_MSG_ERROR([libglut not found])],)

AC_CHECK_LIB(m, abs, , [AC_MSG_ERROR([libm not found])],)

#file OPC_TreeCollider.cpp of OPCODE-1.2 generates run-time errors when compiled with optimization -O2 when 
#using gcc >= 3.0. Therefore this check is made, so when gcc >= 3.0, file OPC_TreeCollider.cpp is compiled with -O1
AC_MSG_CHECKING(checking gcc version)
AM_CONDITIONAL(GCCVERSION3, gcc -dumpversion | grep ^3. > /dev/null)
AC_MSG_RESULT()

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(GL/gl.h GL/glu.h GL/glut.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST

dnl Checks for library functions.

AC_OUTPUT(Makefile OPCODE-1.2/Makefile)