AC_PREREQ(2.59)
AC_INIT(enblend, 3.0, [acmihal@users.sourceforge.net])
AC_CONFIG_SRCDIR([src/enblend.cc])
AM_INIT_AUTOMAKE
AC_CONFIG_HEADER([config.h])

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_RANLIB
AC_LANG(C++)
#CXXFLAGS = 

AC_C_BIGENDIAN

# Checks for libraries.
#AC_CHECK_LIB(tiff,TIFFOpen,,AC_MSG_WARN([libtiff is required to compile enblend.]),[-ljpeg -lz -lm])
AC_CHECK_LIB(tiff,TIFFOpen,,AC_MSG_WARN([libtiff is required to compile enblend.]),[])
AC_CHECK_LIB(lcms,cmsCreateTransform,,AC_MSG_WARN([liblcms is required to compile enblend.]),[])
AC_CHECK_LIB(xmi,miNewPaintedSet,,AC_MSG_WARN([libxmi is required to compile enblend.]),[])
AC_CHECK_LIB(glut,glutInitDisplayMode,,AC_MSG_WARN([GLUT is required to compile enblend.]),[-lGL -lGLU])
AC_CHECK_LIB(GLU,gluBeginCurve,,AC_MSG_WARN([libGLU is required to compile enblend.]),[])
AC_CHECK_LIB(GL,glBegin,,AC_MSG_WARN([libGL is required to compile enblend.]),[])
AC_CHECK_LIB(GLEW,glewInit,,AC_MSG_WARN([GLEW is required to compile enblend.]),[])
#AC_CHECK_LIB(sh,main,,AC_MSG_WARN([libsh is required to compile enblend.]),[])
#AC_CHECK_LIB(brook,main,,AC_MSG_WARN([BrookGPU runtime libraries are required to compile enblend.]),[-logl -lcpu -lgpu])

# Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_CHECK_HEADERS([limits.h stdlib.h string.h unistd.h])
AC_CHECK_HEADER(tiffio.h,,AC_MSG_WARN([libtiff-devel header files are required to compile enblend.]))
AC_CHECK_HEADER(boost/random/mersenne_twister.hpp,,AC_MSG_WARN([boost header files are required to compile enblend.]))
AC_CHECK_HEADER(boost/static_assert.hpp,,AC_MSG_WARN([boost header files are required to compile enblend.]))
AC_CHECK_HEADER(boost/pool/pool.hpp,,AC_MSG_WARN([boost header files are required to compile enblend.]))
AC_CHECK_HEADER(lcms.h,,AC_MSG_WARN([lcms header files are required to compile enblend.]))
AC_CHECK_HEADER(xmi.h,,AC_MSG_WARN([xmi header files are required to compile enblend.]))
AC_CHECK_HEADER(GL/glew.h,,AC_MSG_WARN([glew header files are required to compile enblend.]))
AC_CHECK_HEADER(GL/glut.h,,AC_MSG_WARN([glut header files are required to compile enblend.]))
#AC_CHECK_HEADER(GL/gl.h,,AC_MSG_WARN([OpenGL gl.h header file is required to compile enblend.]))
#AC_CHECK_HEADER(GL/glx.h,,AC_MSG_WARN([OpenGL glx.h header file is required to compile enblend.]))
#AC_CHECK_HEADER(sh/sh.hpp,,AC_MSG_WARN([libsh header files are required to compile enblend.]))
#AC_CHECK_HEADER(brook/brook.hpp,,AC_MSG_WARN([BrookGPU header files are required to compile enblend.]))

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_CONST
AC_C_INLINE
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
AC_CHECK_TYPES([ptrdiff_t])

# Checks for library functions.
AC_FUNC_CLOSEDIR_VOID
AC_FUNC_FSEEKO
AC_FUNC_MALLOC
#AC_FUNC_SETVBUF_REVERSED
AC_TYPE_SIGNAL
AC_FUNC_STRTOD
AC_CHECK_FUNCS([floor memset pow rint sqrt strchr strerror strrchr mkstemp])

# lrint and lrintf
AC_C99_FUNC_LRINT
AC_C99_FUNC_LRINTF

AC_CONFIG_FILES([Makefile
                 doc/Makefile
                 include/Makefile
                 include/vigra/Makefile
                 include/vigra_ext/Makefile
                 src/Makefile
                 src/vigra_impex/Makefile
                 src/win32helpers/Makefile])
AC_OUTPUT