AC_INIT(dwfcore, 1.0, http://www.autodesk.com/dwf)

AC_CONFIG_SRCDIR(configure.in)
AM_INIT_AUTOMAKE

AM_CONFIG_HEADER(config.h)

  
AC_LANG_CPLUSPLUS
AC_PROG_CXX
AM_PROG_LIBTOOL


AC_CHECK_HEADERS(asm/atomic.h)
AC_CHECK_HEADERS(alsa/iatomic.h)
AC_CHECK_HEADERS(netinet/ether.h)


if test HAVE_ASM_ATOMIC_H; then
AC_COMPILE_IFELSE(
    [AC_LANG_PROGRAM([[#include <asm/atomic.h>]],
                     [[int i = 0;
                       atomic_t tValue;
                       atomic_set( &tValue, i );
                       atomic_inc( &tValue );
                       atomic_dec( &tValue );		       
                       i = atomic_read( &tValue );]]
                    )
    ],
    [AC_MSG_NOTICE([OK to use atomic operations from asm/atomic.h])
     AC_DEFINE(_DWFCORE_USE_ASM_ATOMIC_H,1,[OK to use atomic operations from asm/atomic.h])
    ],
    [ AC_MSG_NOTICE([asm/atomic.h available but required operations are missing])
      if test HAVE_ALSA_IATOMIC_H; then
        AC_COMPILE_IFELSE(
            [AC_LANG_PROGRAM([[#include <alsa/iatomic.h>]],
                             [[int i = 0;
                               atomic_t tValue;
                               atomic_set( &tValue, i );
                               atomic_inc( &tValue );
			       atomic_dec( &tValue );
                               i = atomic_read( &tValue );]]
                            )
            ],
            [AC_MSG_NOTICE([OK to use atomic operations from alsa/iatomic.h])
             AC_DEFINE(_DWFCORE_USE_ALSA_IATOMIC_H,1,[OK to use atomic operations from alsa/iatomic.h])
            ],
            [AC_MSG_NOTICE([alsa/iatomic.h available but required operations are missing])]
        )
      fi
    ])
fi



AC_CHECK_LIB(pthread, pthread_create,, AC_MSG_ERROR([POSIX thread library is required]))
AC_CHECK_LIB(uuid, uuid_generate,,)

AC_ARG_WITH([zlib],
             AC_HELP_STRING([--with-zlib],
              	            [use system zlib [[default=yes]]]),
	    [with_zlib=$withval],
	    [with_zlib=yes])

if test $with_zlib = yes; then
AC_CHECK_LIB(z, inflate,, AC_MSG_ERROR([System zlib is required]))
else
AC_MSG_NOTICE([Building zlib into dwfcore])
AC_DEFINE(DWFCORE_BUILD_ZLIB, 1, [Build zlib into dwfcore])
fi


gcc --version > gccver.txt
sed -e '/^gcc version 3.2/ p' gccver.txt > gcc32.txt


AC_ARG_ENABLE([optimized],
               AC_HELP_STRING([--enable-optimized],
              	              [enable optimized build [[default=no]]]),
	      [enable_optimized=$enableval],
	      [enable_optimized=no])

if test $enable_optimized = no; then
AC_MSG_NOTICE([Using debug configuration])

if test -s gcc32.txt
then
AC_MSG_NOTICE([gcc 3.2.x requires less strict compiler flags. Please pay attention to warnings!])
AC_SUBST(CXXFLAGS, ["-g3 -ggdb -p -O0 -pipe -Wall -Wno-long-long -Wnon-virtual-dtor -Wsign-promo -Wsign-compare -Wundef -Wstrict-prototypes"])
else
AC_SUBST(CXXFLAGS, ["-g3 -ggdb -p -O0 -pipe -pedantic-errors -Wall -Werror -Wno-long-long -Wnon-virtual-dtor -Wsign-promo -Wsign-compare -Wundef -Wstrict-prototypes -Wunreachable-code"])
fi

else
AC_MSG_NOTICE([Using optimized configuration])

if test -s gcc32.txt
then
AC_MSG_NOTICE([gcc 3.2.x requires less strict compiler flags. Please pay attention to warnings!])
AC_SUBST(CXXFLAGS, ["-g0 -O2 -pipe -Wall -Wno-long-long -Wnon-virtual-dtor -Wsign-promo -Wsign-compare -Wundef -Wstrict-prototypes -fforce-addr -finline-functions -ffast-math -fno-strict-aliasing"])
else
AC_SUBST(CXXFLAGS, ["-g0 -O2 -pipe -pedantic-errors -Wall -Werror -Wno-long-long -Wnon-virtual-dtor -Wsign-promo -Wsign-compare -Wundef -Wstrict-prototypes -Wunreachable-code -fforce-addr -fomit-frame-pointer -finline-functions -ffast-math -fno-strict-aliasing"])
fi

fi

rm gccver.txt
rm gcc32.txt

AC_OUTPUT(Makefile ansi/Makefile mac/Makefile zip/Makefile zlib/Makefile x86/Makefile x64/Makefile)