168 lines
4.6 KiB
Plaintext
168 lines
4.6 KiB
Plaintext
# 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], [1.5.3rc01], [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=1.5.3rc01
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PNGLIB_MAJOR=1
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PNGLIB_MINOR=5
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PNGLIB_RELEASE=3
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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_LANG([C])
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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_CHECK_TOOL(AWK, awk, :)
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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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LT_INIT([win32-dll])
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# On Solaris 10 and 12 CPP gets set to cc -E, however this still
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# does some input parsing. We need strict ANSI-C style tokenization,
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# check this:
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AC_REQUIRE_CPP
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AC_MSG_CHECKING([for a C preprocessor that does not parse its input])
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AC_TRY_CPP([1.5.0 16BIT],
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[DFNCPP="$CPP"],
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[DFNCPP=""
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sav_CPP="$CPP"
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for CPP in "${CC-cc} -E" "${CC-cc} -E -traditional-cpp" "/lib/cpp" "cpp"; do
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AC_TRY_CPP([1.5.0 16BIT],
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[DFNCPP="$CPP"]
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[break],,)
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done
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CPP="$sav_CPP"])
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if test -n "$DFNCPP"; then
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AC_MSG_RESULT([$DFNCPP])
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AC_SUBST(DFNCPP)
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else
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AC_MSG_FAILURE([not found], 1)
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fi
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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_ARG_WITH(zlib-prefix,
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AC_HELP_STRING([--with-zlib-prefix],
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[prefix that may have been used in installed zlib]),
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[ZPREFIX=${withval}],
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[ZPREFIX='z_'])
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AC_CHECK_LIB(z, zlibVersion, ,
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AC_CHECK_LIB(z, ${ZPREFIX}zlibVersion, ,
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AC_ERROR([zlib not installed])))
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LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG
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LIBPNG_DEFINES=$LIBPNG_DEFINES
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AC_SUBST(LIBPNG_DEFINES)
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AC_MSG_CHECKING([if libraries can be versioned])
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# Special case for PE/COFF platforms: ld reports
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# support for version-script, but doesn't actually
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# DO anything with it.
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case $host in
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*cygwin* | *mingw32* | *interix* )
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have_ld_version_script=no
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AC_MSG_RESULT(no)
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;;
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* )
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GLD=`$LD --help < /dev/null 2>/dev/null | grep version-script`
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if test "$GLD"; then
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have_ld_version_script=yes
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AC_MSG_RESULT(yes)
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else
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have_ld_version_script=no
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AC_MSG_RESULT(no)
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AC_MSG_WARN(*** You have not enabled versioned symbols.)
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fi
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;;
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esac
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AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$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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# Config files, substituting as above
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AC_CONFIG_FILES([Makefile libpng.pc:libpng.pc.in])
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AC_CONFIG_FILES([libpng-config:libpng-config.in],
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[chmod +x libpng-config])
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AC_OUTPUT
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