1 dnl Copyright (C) 1994, 1995-8, 1999, 2001, 2002 Free Software Foundation, Inc.
2 dnl This file is free software; the Free Software Foundation
3 dnl gives unlimited permission to copy and/or distribute it,
4 dnl with or without modifications, as long as this notice is preserved.
6 dnl This program is distributed in the hope that it will be useful,
7 dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
8 dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
9 dnl PARTICULAR PURPOSE.
12 dnl Initialize configure bits.
14 dnl GLIBCPP_TOPREL_CONFIGURE
15 AC_DEFUN(GLIBCPP_TOPREL_CONFIGURE, [
16 dnl Default to --enable-multilib
17 AC_ARG_ENABLE(multilib,
18 [ --enable-multilib build hella library versions (default)],
19 [case "${enableval}" in
22 *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
23 esac], [multilib=yes])dnl
25 # When building with srcdir == objdir, links to the source files will
26 # be created in directories within the target_subdir. We have to
27 # adjust toplevel_srcdir accordingly, so that configure finds
28 # install-sh and other auxiliary files that live in the top-level
30 if test "${srcdir}" = "."; then
31 if test -z "${with_target_subdir}"; then
34 if test "${with_target_subdir}" != "."; then
35 toprel="${with_multisrctop}../.."
37 toprel="${with_multisrctop}.."
43 AC_CONFIG_AUX_DIR(${srcdir}/$toprel)
44 toplevel_srcdir=\${top_srcdir}/$toprel
45 AC_SUBST(toplevel_srcdir)
49 dnl Initialize configure bits.
52 AC_DEFUN(GLIBCPP_CONFIGURE, [
53 # Export build and source directories.
54 # These need to be absolute paths, yet at the same time need to
55 # canonicalize only relative paths, because then amd will not unmount
56 # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
57 glibcpp_builddir=`${PWDCMD-pwd}`
59 [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
60 *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
62 AC_SUBST(glibcpp_builddir)
63 AC_SUBST(glibcpp_srcdir)
65 dnl This is here just to satisfy automake.
66 ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
68 # Will set LN_S to either 'ln -s' or 'ln'. With autoconf 2.50+, can also
69 # be 'cp -p' if linking isn't available.
70 #ac_cv_prog_LN_S='cp -p'
73 # We use these options to decide which functions to include.
74 AC_ARG_WITH(target-subdir,
75 [ --with-target-subdir=SUBDIR
76 configuring in a subdirectory])
77 AC_ARG_WITH(cross-host,
78 [ --with-cross-host=HOST configuring with a cross compiler])
80 # Never versions of autoconf add an underscore to these functions.
81 # Prevent future problems ...
82 ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))])
83 ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))])
84 ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))])
85 ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))])
89 # FIXME: We temporarily define our own version of AC_PROG_CC. This is
90 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
91 # are probably using a cross compiler, which will not be able to fully
92 # link an executable. This should really be fixed in autoconf
95 AC_DEFUN(LIB_AC_PROG_CC,
96 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
97 dnl Fool anybody using AC_PROG_CC.
98 AC_PROVIDE([AC_PROG_CC])
99 AC_CHECK_PROG(CC, gcc, gcc)
100 if test -z "$CC"; then
101 AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
102 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
107 if test $ac_cv_prog_gcc = yes; then
109 dnl Check whether -g works, even if CFLAGS is set, in case the package
110 dnl plays around with CFLAGS (such as to build both debugging and
111 dnl normal versions of a library), tasteless as that idea is.
112 ac_test_CFLAGS="${CFLAGS+set}"
113 ac_save_CFLAGS="$CFLAGS"
116 if test "$ac_test_CFLAGS" = set; then
117 CFLAGS="$ac_save_CFLAGS"
118 elif test $ac_cv_prog_cc_g = yes; then
125 test "${CFLAGS+set}" = set || CFLAGS="-g"
131 AC_CHECK_TOOL(AS, as)
132 AC_CHECK_TOOL(AR, ar)
133 AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
136 # We need AC_EXEEXT to keep automake happy in cygnus mode. However,
137 # at least currently, we never actually build a program, so we never
138 # need to use $(EXEEXT). Moreover, the test for EXEEXT normally
139 # fails, because we are probably configuring with a cross compiler
140 # which can't create executables. So we include AC_EXEEXT to keep
141 # automake happy, but we don't execute it, since we don't care about
144 # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
145 # to nothing, so nothing would remain between `then' and `fi' if it
146 # were not for the `:' below.
154 dnl GLIBCPP_EXPORT_INSTALL_INFO
155 dnl calculates gxx_install_dir
156 dnl exports glibcpp_toolexecdir
157 dnl exports glibcpp_toolexeclibdir
158 dnl exports glibcpp_prefixdir
160 dnl Assumes cross_compiling bits already done, and with_cross_host in
163 dnl GLIBCPP_EXPORT_INSTALL_INFO
164 AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [
165 # Assumes glibcpp_builddir, glibcpp_srcdir are alreay set up and
166 # exported correctly in GLIBCPP_CONFIGURE.
167 glibcpp_toolexecdir=no
168 glibcpp_toolexeclibdir=no
169 glibcpp_prefixdir=${prefix}
171 AC_MSG_CHECKING([for interface version number])
172 libstdcxx_interface=$INTERFACE
173 AC_MSG_RESULT($libstdcxx_interface)
175 # Process the option "--enable-version-specific-runtime-libs"
176 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
177 AC_ARG_ENABLE(version-specific-runtime-libs,
178 [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
179 [case "$enableval" in
180 yes) version_specific_libs=yes ;;
181 no) version_specific_libs=no ;;
182 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
184 version_specific_libs=no)dnl
185 # Option set, now we can test it.
186 AC_MSG_RESULT($version_specific_libs)
188 gcc_version_trigger=${toplevel_srcdir}/gcc/version.c
189 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
190 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
191 AC_SUBST(gcc_version)
192 AC_SUBST(gcc_version_trigger)
194 if test $version_specific_libs = yes; then
195 # Need the gcc compiler version to know where to install libraries
196 # and header files if --enable-version-specific-runtime-libs option
197 # is selected. FIXME: "toolexecdir" is a misnomer, there are no
198 # executables installed there.
200 glibcpp_toolexecdir='$(libdir)/gcc/$(target_alias)'
201 glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
205 # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir
206 # Install a library built with a cross compiler in tooldir, not libdir.
207 if test x"$glibcpp_toolexecdir" = x"no"; then
208 if test -n "$with_cross_host" &&
209 test x"$with_cross_host" != x"no"; then
210 glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
211 glibcpp_toolexeclibdir='$(toolexecdir)/lib'
213 glibcpp_toolexecdir='$(libdir)/gcc/$(target_alias)'
214 glibcpp_toolexeclibdir='$(libdir)'
216 multi_os_directory=`$CC -print-multi-os-directory`
217 case $multi_os_directory in
218 .) ;; # Avoid trailing /.
219 *) glibcpp_toolexeclibdir=$glibcpp_toolexeclibdir/$multi_os_directory ;;
223 AC_SUBST(glibcpp_prefixdir)
224 AC_SUBST(glibcpp_toolexecdir)
225 AC_SUBST(glibcpp_toolexeclibdir)
228 sinclude(../libtool.m4)
229 dnl The lines below arrange for aclocal not to bring an installed
230 dnl libtool.m4 into aclocal.m4, while still arranging for automake to
231 dnl add a definition of LIBTOOL to Makefile.in.
232 ifelse(,,,[AC_SUBST(LIBTOOL)
233 AC_DEFUN([AM_PROG_LIBTOOL])
234 AC_DEFUN([AC_LIBTOOL_DLOPEN])
235 AC_DEFUN([AC_PROG_LD])