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154 lines
4.3 KiB
Text
154 lines
4.3 KiB
Text
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# configure.ac
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dnl Process this file with autoconf to produce a configure script.
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dnl
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dnl Minor upgrades (compatible ABI): increment the package version
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dnl (third field in two places below) and set the PNGLIB_RELEASE
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dnl variable.
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dnl
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dnl Major upgrades (incompatible ABI): increment the package major
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dnl version (second field, or first if desired), set the minor
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dnl to 0, set PNGLIB_MAJOR below *and* follow the instructions in
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dnl Makefile.am to upgrade the package name.
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dnl This is here to prevent earlier autoconf from being used, it
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dnl should not be necessary to regenerate configure if the time
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dnl stamps are correct
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AC_PREREQ(2.59)
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dnl Version number stuff here:
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AC_INIT([libpng], [1.2.46], [png-mng-implement@lists.sourceforge.net])
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AM_INIT_AUTOMAKE
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dnl stop configure from automagically running automake
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AM_MAINTAINER_MODE
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PNGLIB_VERSION=1.2.46
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PNGLIB_MAJOR=1
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PNGLIB_MINOR=2
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PNGLIB_RELEASE=46
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dnl End of version number stuff
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AC_CONFIG_SRCDIR([pngget.c])
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AM_CONFIG_HEADER(config.h)
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# Checks for programs.
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AC_PROG_CC
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AC_PROG_LD
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AC_PROG_CPP
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AC_CHECK_TOOL(SED, sed, :)
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AC_LIBTOOL_WIN32_DLL
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AC_PROG_INSTALL
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AC_PROG_LN_S
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AC_PROG_MAKE_SET
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AC_PROG_LIBTOOL
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# Checks for header files.
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AC_HEADER_STDC
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AC_CHECK_HEADERS([malloc.h stdlib.h string.h strings.h])
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# Checks for typedefs, structures, and compiler characteristics.
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AC_C_CONST
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AC_TYPE_SIZE_T
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AC_STRUCT_TM
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# Checks for library functions.
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AC_FUNC_STRTOD
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AC_CHECK_FUNCS([memset], , AC_ERROR([memset not found in libc]))
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AC_CHECK_FUNCS([pow], , AC_CHECK_LIB(m, pow, , AC_ERROR([cannot find pow])) )
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AC_CHECK_LIB(z, zlibVersion, , AC_ERROR([zlib not installed]))
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case $host_os in
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aix*)
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LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG -D_ALL_SOURCE;;
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*)
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LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG;;
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esac
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AC_MSG_CHECKING(
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[if assembler code in pnggccrd.c can be compiled without PNG_NO_MMX_CODE])
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AC_TRY_COMPILE(
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[#include "$srcdir/pnggccrd.c"],
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[return 0;],
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AC_MSG_RESULT(yes)
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LIBPNG_NO_MMX="",
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AC_MSG_RESULT(no)
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LIBPNG_NO_MMX=-DPNG_NO_MMX_CODE)
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LIBPNG_DEFINES=$LIBPNG_DEFINES\ $LIBPNG_NO_MMX
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AC_SUBST(LIBPNG_DEFINES)
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AC_SUBST(LIBPNG_NO_MMX)
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AC_MSG_CHECKING([if libraries can be versioned])
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GLD=`$LD --help < /dev/null 2>/dev/null | grep version-script`
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if test "$GLD"; then
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have_ld_version_script=yes
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AC_MSG_RESULT(yes)
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else
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have_ld_version_script=no
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AC_MSG_RESULT(no)
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AC_MSG_WARN(*** You have not enabled versioned symbols.)
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fi
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AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes")
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if test "$have_ld_version_script" = "yes"; then
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AC_MSG_CHECKING([for symbol prefix])
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SYMBOL_PREFIX=`echo "PREFIX=__USER_LABEL_PREFIX__" \
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| ${CPP-${CC-gcc} -E} - 2>&1 \
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| ${EGREP-grep} "^PREFIX=" \
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| ${SED-sed} "s:^PREFIX=::"`
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AC_SUBST(SYMBOL_PREFIX)
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AC_MSG_RESULT($SYMBOL_PREFIX)
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fi
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# Substitutions for .in files
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AC_SUBST(PNGLIB_VERSION)
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AC_SUBST(PNGLIB_MAJOR)
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AC_SUBST(PNGLIB_MINOR)
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AC_SUBST(PNGLIB_RELEASE)
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# Additional arguments (and substitutions)
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# Allow the pkg-config directory to be set
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AC_ARG_WITH(pkgconfigdir,
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AC_HELP_STRING([--with-pkgconfigdir],
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[Use the specified pkgconfig dir (default is libdir/pkgconfig)]),
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[pkgconfigdir=${withval}],
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[pkgconfigdir='${libdir}/pkgconfig'])
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AC_SUBST([pkgconfigdir])
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AC_MSG_NOTICE([pkgconfig directory is ${pkgconfigdir}])
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# Make the *-config binary config scripts optional
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AC_ARG_WITH(binconfigs,
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AC_HELP_STRING([--with-binconfigs],
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[Generate shell libpng-config scripts as well as pkg-config data]
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[@<:@default=yes@:>@]),
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[if test "${withval}" = no; then
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binconfigs=
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AC_MSG_NOTICE([libpng-config scripts will not be built])
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else
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binconfigs='${binconfigs}'
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fi],
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[binconfigs='${binconfigs}'])
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AC_SUBST([binconfigs])
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# Allow the old version number library, libpng.so, to be removed from
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# the build
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AC_ARG_WITH(libpng-compat,
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AC_HELP_STRING([--with-libpng-compat],
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[Generate the obsolete libpng.so library @<:@default=yes@:>@]),
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[if test "${withval}" = no; then
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compatlib=
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AC_MSG_NOTICE([libpng.so will not be built])
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else
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compatlib=libpng.la
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fi],
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[compatlib=libpng.la])
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AC_SUBST([compatlib])
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# Config files, substituting as above
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AC_CONFIG_FILES([Makefile libpng.pc:scripts/libpng.pc-configure.in])
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AC_CONFIG_FILES([libpng-config:scripts/libpng-config.in],
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[chmod +x libpng-config])
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AC_OUTPUT
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