dnl Process this file with autoconf to produce a configure script

dnl ------------------------------------------------

dnl Initialization and Versioning

dnl ------------------------------------------------

AC_INIT([libvorbis],[1.3.5],[vorbis-dev@xiph.org])

AC_CONFIG_SRCDIR([lib/mdct.c])

AC_CANONICAL_TARGET([])

AM_INIT_AUTOMAKE

AM_MAINTAINER_MODE

dnl Add parameters for aclocal

AC_SUBST(ACLOCAL_AMFLAGS, "-I m4")

dnl Library versioning

dnl - library source changed -> increment REVISION

dnl - interfaces added/removed/changed -> increment CURRENT, REVISION = 0

dnl - interfaces added -> increment AGE

dnl - interfaces removed -> AGE = 0

V_LIB_CURRENT=4

V_LIB_REVISION=8

V_LIB_AGE=4

VF_LIB_CURRENT=6

VF_LIB_REVISION=7

VF_LIB_AGE=3

VE_LIB_CURRENT=2

VE_LIB_REVISION=11

VE_LIB_AGE=0

AC_SUBST(V_LIB_CURRENT)

AC_SUBST(V_LIB_REVISION)

AC_SUBST(V_LIB_AGE)

AC_SUBST(VF_LIB_CURRENT)

AC_SUBST(VF_LIB_REVISION)

AC_SUBST(VF_LIB_AGE)

AC_SUBST(VE_LIB_CURRENT)

AC_SUBST(VE_LIB_REVISION)

AC_SUBST(VE_LIB_AGE)

dnl --------------------------------------------------  

dnl Check for programs

dnl --------------------------------------------------  

dnl save $CFLAGS since AC_PROG_CC likes to insert "-g -O2"

dnl if $CFLAGS is blank

cflags_save="$CFLAGS"

AC_PROG_CC

AC_PROG_CPP

CFLAGS="$cflags_save"

AC_C_INLINE

AC_LIBTOOL_WIN32_DLL

AC_PROG_LIBTOOL

AM_PROG_CC_C_O

dnl Check for doxygen

if test "x$enable_docs" = xyes; then

  AC_CHECK_PROG(HAVE_DOXYGEN, doxygen, true, false)

  if test $HAVE_DOXYGEN = "false"; then

    AC_MSG_WARN([*** doxygen not found, API documentation will not be built])

  fi

else

  HAVE_DOXYGEN=false

fi

AM_CONDITIONAL(HAVE_DOXYGEN,$HAVE_DOXYGEN)

dnl latex tools for the specification document

AC_ARG_ENABLE(docs,

	AC_HELP_STRING([--enable-docs], [build the documentation]))

if test "x$enable_docs" = xyes; then

  AC_CHECK_PROGS([PDFLATEX], pdflatex, [/bin/false])

  AC_CHECK_PROGS([HTLATEX], htlatex, [/bin/false])

  if test "x$PDFLATEX" = x/bin/false || test "x$HTLATEX" = x/bin/false; then

    enable_docs=no

    AC_MSG_WARN([Documentation will not be built!])

  fi

fi

AM_CONDITIONAL(BUILD_DOCS, [test "x$enable_docs" = xyes])

AC_ARG_ENABLE(examples, 

  AS_HELP_STRING([--enable-examples], [build the examples])) 

AM_CONDITIONAL(BUILD_EXAMPLES, [test "x$enable_examples" = xyes]) 

dnl --------------------------------------------------

dnl Set build flags based on environment

dnl --------------------------------------------------

dnl Set some target options

cflags_save="$CFLAGS"

if test -z "$GCC"; then

	case $host in 

	*-*-irix*)

		dnl If we're on IRIX, we wanna use cc even if gcc 

		dnl is there (unless the user has overriden us)...

		if test -z "$CC"; then

			CC=cc

		fi

		DEBUG="-g -signed" 

		CFLAGS="-O2 -w -signed"

		PROFILE="-p -g3 -O2 -signed" ;;

	sparc-sun-solaris*)

		DEBUG="-v -g"

		CFLAGS="-xO4 -fast -w -fsimple -native -xcg92"

		PROFILE="-v -xpg -g -xO4 -fast -native -fsimple -xcg92 -Dsuncc" ;;

	*)

		DEBUG="-g"

		CFLAGS="-O"

		PROFILE="-g -p" ;;

        esac

else

	AC_MSG_CHECKING([GCC version])

	GCC_VERSION=`$CC -dumpversion`

	AC_MSG_RESULT([$GCC_VERSION])

	case $host in 

	*86-*-linux*)

		DEBUG="-g -Wall -Wextra -D_REENTRANT -D__NO_MATH_INLINES -fsigned-char"

		CFLAGS="-O3 -ffast-math -mno-ieee-fp -D_REENTRANT -fsigned-char"

#              	PROFILE="-Wall -Wextra -pg -g -O3 -ffast-math -D_REENTRANT -fsigned-char -fno-inline -static"

		PROFILE="-Wall -Wextra -pg -g -O3 -ffast-math -mno-ieee-fp -D_REENTRANT -fsigned-char -fno-inline"

		# glibc < 2.1.3 has a serious FP bug in the math inline header

		# that will cripple Vorbis.  Look to see if the magic FP stack

		# clobber is missing in the mathinline header, thus indicating

		# the buggy version

		AC_EGREP_CPP(log10.*fldlg2.*fxch,[

				#define __LIBC_INTERNAL_MATH_INLINES 1

			     	#define __OPTIMIZE__

				#include <math.h>

				],bad=maybe,bad=no)

		if test ${bad} = "maybe" ;then

		      AC_EGREP_CPP(log10.*fldlg2.*fxch.*st\([[0123456789]]*\),

					[

					#define __LIBC_INTERNAL_MATH_INLINES 1

				     	#define __OPTIMIZE__

					#include <math.h>

					],bad=no,bad=yes)

		fi

 		if test ${bad} = "yes" ;then

 AC_MSG_WARN([                                                        ])

 AC_MSG_WARN([********************************************************])

 AC_MSG_WARN([* The glibc headers on this machine have a serious bug *])

 AC_MSG_WARN([* in /usr/include/bits/mathinline.h  This bug affects  *])

 AC_MSG_WARN([* all floating point code, not just Ogg, built on this *])

 AC_MSG_WARN([* machine.  Upgrading to glibc 2.1.3 is strongly urged *])

 AC_MSG_WARN([* to correct the problem.  Note that upgrading glibc   *])

 AC_MSG_WARN([* will not fix any previously built programs; this is  *])

 AC_MSG_WARN([* a compile-time bug.                                  *])

 AC_MSG_WARN([* To work around the problem for this build of Ogg,    *])

 AC_MSG_WARN([* autoconf is disabling all math inlining.  This will  *])

 AC_MSG_WARN([* hurt Ogg performace but is necessary for an Ogg that *])

 AC_MSG_WARN([* will actually work.  Once glibc is upgraded, rerun   *])

 AC_MSG_WARN([* configure and make to build with inlining.           *])

 AC_MSG_WARN([********************************************************])

 AC_MSG_WARN([                                                        ])

  		CFLAGS=${OPT}" -D__NO_MATH_INLINES"

  		PROFILE=${PROFILE}" -D__NO_MATH_INLINES"

  		fi;;

        powerpc-*-linux*spe) 

 	        DEBUG="-g -Wall -Wextra -D_REENTRANT -D__NO_MATH_INLINES" 

 	        CFLAGS="-O3 -Wall -Wextra -ffast-math -mfused-madd -D_REENTRANT" 

 	        PROFILE="-pg -g -O3 -ffast-math -mfused-madd -D_REENTRANT";; 

	powerpc-*-linux*)

		DEBUG="-g -Wall -Wextra -D_REENTRANT -D__NO_MATH_INLINES"

		CFLAGS="-O3 -Wall -Wextra -ffast-math -mfused-madd -mcpu=750 -D_REENTRANT"

		PROFILE="-pg -g -O3 -ffast-math -mfused-madd -mcpu=750 -D_REENTRANT";;

	*-*-linux*)

		DEBUG="-g -Wall -Wextra -D_REENTRANT -D__NO_MATH_INLINES -fsigned-char"

		CFLAGS="-O3 -Wall -Wextra -ffast-math -D_REENTRANT -fsigned-char"

		PROFILE="-pg -g -O3 -ffast-math -D_REENTRANT -fsigned-char";;

	sparc-sun-*)

		sparc_cpu=""

		AC_MSG_CHECKING([if gcc supports -mv8])

		old_cflags="$CFLAGS"

		CFLAGS="$CFLAGS -mv8"

		AC_TRY_COMPILE(, [return 0;], [

			AC_MSG_RESULT([yes])

			sparc_cpu="-mv8"

		])

		CFLAGS="$old_cflags"

		DEBUG="-g -Wall -Wextra -D__NO_MATH_INLINES -fsigned-char $sparc_cpu"

		CFLAGS="-O3 -Wall -Wextra -ffast-math -D__NO_MATH_INLINES -fsigned-char $sparc_cpu"

		PROFILE="-pg -g -O3 -D__NO_MATH_INLINES -fsigned-char $sparc_cpu" ;;

	*-*-darwin*)

		DEBUG="-DDARWIN -fno-common -force_cpusubtype_ALL -Wall -g -O0 -fsigned-char"

		CFLAGS="-DDARWIN -fno-common -force_cpusubtype_ALL -Wall -g -O3 -ffast-math -fsigned-char"

		PROFILE="-DDARWIN -fno-common -force_cpusubtype_ALL -Wall -g -pg -O3 -ffast-math -fsigned-char";;

	*-*-os2*)

		# Use -W instead of -Wextra because gcc on OS/2 is an old version.

		DEBUG="-g -Wall -W -D_REENTRANT -D__NO_MATH_INLINES -fsigned-char"

		CFLAGS="-O3 -Wall -W -ffast-math -D_REENTRANT -fsigned-char"

		PROFILE="-pg -g -O3 -ffast-math -D_REENTRANT -fsigned-char";;

 	*)

		DEBUG="-g -Wall -Wextra -D__NO_MATH_INLINES -fsigned-char"

		CFLAGS="-O3 -Wall -Wextra -D__NO_MATH_INLINES -fsigned-char"

		PROFILE="-O3 -g -pg -D__NO_MATH_INLINES -fsigned-char" ;;

        esac

        AC_ADD_CFLAGS([-Wdeclaration-after-statement])

fi

CFLAGS="$CFLAGS $cflags_save"

dnl --------------------------------------------------

dnl Check for headers

dnl --------------------------------------------------

AC_CHECK_HEADER(memory.h,CFLAGS="$CFLAGS -DUSE_MEMORY_H",:)

dnl --------------------------------------------------

dnl Check for typedefs, structures, etc

dnl --------------------------------------------------

dnl none

dnl --------------------------------------------------

dnl Check for libraries

dnl --------------------------------------------------

AC_CHECK_LIB(m, cos, VORBIS_LIBS="-lm", VORBIS_LIBS="")

AC_CHECK_LIB(pthread, pthread_create, pthread_lib="-lpthread", :)

PKG_PROG_PKG_CONFIG

HAVE_OGG=no

if test "x$PKG_CONFIG" != "x"

then

  PKG_CHECK_MODULES(OGG, ogg >= 1.0, HAVE_OGG=yes, HAVE_OGG=no)

fi

if test "x$HAVE_OGG" = "xno"

then

  dnl fall back to the old school test

  XIPH_PATH_OGG(, AC_MSG_ERROR(must have Ogg installed!))

  libs_save=$LIBS

  LIBS="$OGG_LIBS $VORBIS_LIBS"

  AC_CHECK_FUNC(oggpack_writealign, , AC_MSG_ERROR(Ogg >= 1.0 required !))

  LIBS=$libs_save

fi

dnl --------------------------------------------------

dnl Check for library functions

dnl --------------------------------------------------

AC_FUNC_ALLOCA

AC_FUNC_MEMCMP

dnl --------------------------------------------------

dnl Do substitutions

dnl --------------------------------------------------

AC_SUBST(VORBIS_LIBS)

AC_SUBST(DEBUG)

AC_SUBST(PROFILE)

AC_SUBST(pthread_lib)

dnl The following line causes the libtool distributed with the source

dnl to be replaced if the build system has a more recent version.

AC_SUBST(LIBTOOL_DEPS)

AC_CONFIG_FILES([

Makefile

m4/Makefile

lib/Makefile

lib/modes/Makefile

lib/books/Makefile

lib/books/coupled/Makefile

lib/books/uncoupled/Makefile

lib/books/floor/Makefile

doc/Makefile doc/vorbisfile/Makefile doc/vorbisenc/Makefile doc/libvorbis/Makefile

doc/Doxyfile

include/Makefile include/vorbis/Makefile

examples/Makefile

test/Makefile

vq/Makefile

libvorbis.spec

vorbis.pc

vorbisenc.pc

vorbisfile.pc

vorbis-uninstalled.pc

vorbisenc-uninstalled.pc

vorbisfile-uninstalled.pc

])

AC_CONFIG_HEADERS([config.h])

AC_OUTPUT