configure.ac 5.12 KB
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# autoconf source script for generating configure

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dnl The package_version file will be automatically synced to the git revision
dnl by the update_version script when configured in the repository, but will
dnl remain constant in tarball releases unless it is manually edited.
m4_define([CURRENT_VERSION],
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          m4_esyscmd([ ./update_version 2>/dev/null || true
                       if test -e package_version; then
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                           . ./package_version
                           printf "$PACKAGE_VERSION"
                       else
                           printf "unknown"
                       fi ]))
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AC_INIT([opusfile],[CURRENT_VERSION],[opus@xiph.org])
AC_CONFIG_SRCDIR([src/opusfile.c])
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AC_CONFIG_MACRO_DIR([m4])
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AC_USE_SYSTEM_EXTENSIONS
AC_SYS_LARGEFILE

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AM_INIT_AUTOMAKE([1.11 foreign no-define dist-zip subdir-objects])
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AM_MAINTAINER_MODE([enable])
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LT_INIT

m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

dnl Library versioning for libtool.
dnl Please update these for releases.
dnl CURRENT, REVISION, AGE
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

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OP_LT_CURRENT=3
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OP_LT_REVISION=0
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OP_LT_AGE=3
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AC_SUBST(OP_LT_CURRENT)
AC_SUBST(OP_LT_REVISION)
AC_SUBST(OP_LT_AGE)

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CC_CHECK_CFLAGS_APPEND(
  [-std=c89 -pedantic -Wall -Wextra -Wno-parentheses -Wno-long-long])

# Platform-specific tweaks
case $host in
  *-mingw*)
    # -std=c89 causes some warnings under mingw.
    CC_CHECK_CFLAGS_APPEND([-U__STRICT_ANSI__])
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    # We need WINNT>=0x501 (WindowsXP) for getaddrinfo/freeaddrinfo.
    # It's okay to define this even when HTTP support is disabled, as it only
    #  affects header declarations, not linking (unless we actually use some
    #  XP-only functions).
    AC_DEFINE_UNQUOTED(_WIN32_WINNT,0x501,
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     [We need at least WindowsXP for getaddrinfo/freeaddrinfo])
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    host_mingw=true
    ;;
esac
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AM_CONDITIONAL(OP_WIN32, test "$host_mingw" = "true")
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AC_ARG_ENABLE([assertions],
  AS_HELP_STRING([--enable-assertions], [Enable assertions in code]),,
  enable_assertions=no)

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AS_IF([test "$enable_assertions" = "yes"], [
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  AC_DEFINE([OP_ENABLE_ASSERTIONS], [1], [Enable assertions in code])
])

AC_ARG_ENABLE([http],
  AS_HELP_STRING([--disable-http], [Disable HTTP support]),,
  enable_http=yes)

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AM_COND_IF(OP_WIN32,
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  AS_IF([test "$enable_http" != "no"],
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    AC_CHECK_HEADER([winsock2.h],,
      AC_MSG_WARN([HTTP support requires a Winsock socket library.])
      enable_http=no
    )
  ),
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  AS_IF([test "$enable_http" != "no"],
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    AC_CHECK_HEADER([sys/socket.h],,
      AC_MSG_WARN([HTTP support requires a POSIX socket library.])
      enable_http=no
    )
  )
)
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AC_SEARCH_LIBS(ftime, [compat], , [enable_http=no])
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AS_IF([test "$enable_http" != "no"], [
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   openssl="openssl"
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   AC_DEFINE([OP_ENABLE_HTTP], [1], [Enable HTTP support])
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   PKG_CHECK_MODULES([URL_DEPS], [openssl])
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])
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AM_CONDITIONAL(OP_ENABLE_HTTP, [test "$enable_http" != "no"])
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AC_SUBST([openssl])
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PKG_CHECK_MODULES([DEPS], [ogg >= 1.3 opus >= 1.0.1])
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AC_ARG_ENABLE([fixed-point],
  AS_HELP_STRING([--enable-fixed-point], [Enable fixed-point calculation]),,
  enable_fixed_point=no)
AC_ARG_ENABLE([float],
  AS_HELP_STRING([--disable-float], [Disable floating-point API]),,
  enable_float=yes)

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AS_IF([test "$enable_float" = "no"],
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  [enable_fixed_point=yes
   AC_DEFINE([OP_DISABLE_FLOAT_API], [1], [Disable floating-point API])
  ]
)

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AS_IF([test "$enable_fixed_point" = "yes"],
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  [AC_DEFINE([OP_FIXED_POINT], [1], [Enable fixed-point calculation])],
  [dnl This only has to be tested for if float->fixed conversions are required
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   saved_LIBS="$LIBS"
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   AC_SEARCH_LIBS([lrintf], [m], [
      AC_DEFINE([OP_HAVE_LRINTF], [1], [Enable use of lrintf function])
      lrintf_notice="
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    Library for lrintf() ......... ${ac_cv_search_lrintf}"
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   ])
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   LIBS="$saved_LIBS"
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  ]
)
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AS_CASE(["$ac_cv_search_lrintf"],
  ["no"],[],
  ["none required"],[],
  [lrintf_lib="$ac_cv_search_lrintf"])

AC_SUBST([lrintf_lib])
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CC_ATTRIBUTE_VISIBILITY([default], [
  CC_FLAG_VISIBILITY([CFLAGS="${CFLAGS} -fvisibility=hidden"])
])

dnl Check for doxygen
AC_ARG_ENABLE([doc],
  AS_HELP_STRING([--disable-doc], [Do not build API documentation]),,
  [enable_doc=yes]
)
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AS_IF([test "$enable_doc" = "yes"], [
  AC_CHECK_PROG([HAVE_DOXYGEN], [doxygen], [yes], [no])
],[
  HAVE_DOXYGEN=no
])

AM_CONDITIONAL([HAVE_DOXYGEN], [test "$HAVE_DOXYGEN" = "yes"])
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AC_CONFIG_FILES([
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  Makefile
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  opusfile.pc
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  opusurl.pc
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  opusfile-uninstalled.pc
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  opusurl-uninstalled.pc
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  doc/Doxyfile
])
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AC_CONFIG_HEADERS([config.h])
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AC_OUTPUT
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AC_MSG_NOTICE([
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------------------------------------------------------------------------
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  $PACKAGE_NAME $PACKAGE_VERSION: Automatic configuration OK.
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    Assertions ................... ${enable_assertions}

    HTTP support ................. ${enable_http}
    Fixed-point .................. ${enable_fixed_point}
    Floating-point API ........... ${enable_float}${lrintf_notice}

    Hidden visibility ............ ${cc_cv_flag_visibility}

    API documentation ............ ${enable_doc}
------------------------------------------------------------------------
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])