6706f1167e
* configure.in (ORIGINAL_LD_FOR_MULTILIBS): Preserve LD at script entry, and set LD to it when configuring multilibs. * configure: Rebuilt. From-SVN: r53278
140 lines
3.9 KiB
Plaintext
140 lines
3.9 KiB
Plaintext
dnl Process this with autoconf to create configure
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AC_INIT(zlib.h)
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# This works around the fact that libtool configuration may change LD
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# for this particular configuration, but some shells, instead of
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# keeping the changes in LD private, export them just because LD is
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# exported.
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ORIGINAL_LD_FOR_MULTILIBS=$LD
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dnl We may get other options which we dont document:
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dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
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if test "x[$]{with_target_subdir}" != x && \
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test "[$]{srcdir}" = "."; then
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if test "[$]{with_target_subdir}" != "."; then
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zlib_basedir="[$]{srcdir}/[$]{with_multisrctop}../"
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else
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zlib_basedir="[$]{srcdir}/[$]{with_multisrctop}"
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fi
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else
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zlib_basedir="[$]{srcdir}/"
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fi
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AC_SUBST(zlib_basedir)
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AC_CONFIG_AUX_DIR($zlib_basedir..)
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if :; then :; else
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# This overrides the previous occurrence for automake, but not for
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# autoconf, which is exactly what we want.
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AC_CONFIG_AUX_DIR(..)
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fi
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AC_CANONICAL_SYSTEM
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# This works around an automake problem.
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mkinstalldirs="`cd $ac_aux_dir && pwd`/mkinstalldirs"
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AC_SUBST(mkinstalldirs)
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AM_INIT_AUTOMAKE(zlib, 1.1.3)
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AM_MAINTAINER_MODE
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dnl We use these options to decide which functions to include.
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AC_ARG_WITH(target-subdir,
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[ --with-target-subdir=SUBDIR
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configuring in a subdirectory])
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AC_ARG_WITH(cross-host,
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[ --with-cross-host=HOST configuring with a cross compiler])
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dnl Default to --enable-multilib
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AC_ARG_ENABLE(multilib,
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[ --enable-multilib build many library versions (default)],
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[case "${enableval}" in
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yes) multilib=yes ;;
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no) multilib=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
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esac], [test -z "$with_target_subdir" && multilib=no || multilib=yes])dnl
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AC_ARG_WITH(system-zlib,
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[ --with-system-zlib use installed libz])
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LIB_AC_PROG_CC
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# We need AC_EXEEXT to keep automake happy in cygnus mode. However,
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# at least currently, we never actually build a program, so we never
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# need to use $(EXEEXT). Moreover, the test for EXEEXT normally
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# fails, because we are probably configuring with a cross compiler
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# which cant create executables. So we include AC_EXEEXT to keep
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# automake happy, but we dont execute it, since we dont care about
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# the result.
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if false; then
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# autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
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# to nothing, so nothing would remain between `then' and `fi' if it
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# were not for the `:' below.
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:
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AC_EXEEXT
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fi
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AM_PROG_LIBTOOL
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if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
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COMPPATH=.
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else
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COMPPATH=..
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fi
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AC_SUBST(COMPPATH)
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# Find CPP now so that any conditional tests below won't do it and
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# thereby make the resulting definitions conditional.
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AC_PROG_CPP
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if test -n "$with_cross_host"; then
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# We are being configured with a cross compiler. AC_REPLACE_FUNCS
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# may not work correctly, because the compiler may not be able to
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# link executables.
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# We assume newlib. This lets us hard-code the functions we know
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# we'll have.
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AC_DEFINE(HAVE_MEMCPY)
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AC_DEFINE(HAVE_STRERROR)
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# We ignore --with-system-zlib in this case.
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target_all=libzgcj.la
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else
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AC_FUNC_MMAP
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AC_CHECK_FUNCS(memcpy strerror)
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if test "$with_system_zlib" = yes; then
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AC_CHECK_LIB(z, deflate, target_all=, target_all=libzgcj.la)
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else
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target_all=libzgcj.la
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fi
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fi
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AC_SUBST(target_all)
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AC_CHECK_HEADERS(unistd.h)
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AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
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AM_CONDITIONAL(TARGET_LIBRARY, test -n "$with_target_subdir")
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if test "${multilib}" = "yes"; then
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multilib_arg="--enable-multilib"
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else
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multilib_arg=
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fi
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AC_OUTPUT(Makefile,
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[if test -n "$CONFIG_FILES"; then
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LD="${ORIGINAL_LD_FOR_MULTILIBS}"
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ac_file=Makefile . ${zlib_basedir}/../config-ml.in
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fi],
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srcdir=${srcdir}
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host=${host}
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target=${target}
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with_multisubdir=${with_multisubdir}
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ac_configure_args="${multilib_arg} ${ac_configure_args}"
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CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
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zlib_basedir=${zlib_basedir}
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CC="${CC}"
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CXX="${CXX}"
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)
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