1 |
20 |
jlechner |
# Process this file with autoreconf to produce a configure script.
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3 |
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AC_PREREQ(2.59)
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4 |
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AC_INIT(package-unused, version-unused,, libstdc++)
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5 |
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AC_CONFIG_SRCDIR(src/ios.cc)
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6 |
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AC_CONFIG_HEADER(config.h)
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7 |
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8 |
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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. Only used at the end of this file.
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### am handles this now? ORIGINAL_LD_FOR_MULTILIBS=$LD
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13 |
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# For libtool versioning info, format is CURRENT:REVISION:AGE
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libtool_VERSION=6:8:0
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AC_SUBST(libtool_VERSION)
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17 |
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18 |
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# Find the rest of the source tree framework.
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19 |
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AM_ENABLE_MULTILIB(, ..)
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20 |
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21 |
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# Gets build, host, target, *_vendor, *_cpu, *_os, etc.
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22 |
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#
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23 |
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# You will slowly go insane if you do not grok the following fact: when
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24 |
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# building v3 as part of the compiler, the top-level /target/ becomes the
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25 |
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# library's /host/. configure then causes --target to default to --host,
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26 |
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# exactly like any other package using autoconf. Therefore, 'target' and
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27 |
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# 'host' will always be the same. This makes sense both for native and
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28 |
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# cross compilers, just think about it for a little while. :-)
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29 |
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#
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30 |
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# Also, if v3 is being configured as part of a cross compiler, the top-level
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31 |
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# configure script will pass the "real" host as $with_cross_host.
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32 |
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#
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33 |
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# Do not delete or change the following two lines. For why, see
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34 |
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# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
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35 |
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AC_CANONICAL_SYSTEM
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36 |
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target_alias=${target_alias-$host_alias}
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37 |
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38 |
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# Handy for debugging:
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39 |
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#AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5
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40 |
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41 |
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if test "$build" != "$host"; then
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42 |
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# We are being configured with some form of cross compiler.
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43 |
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GLIBCXX_IS_NATIVE=false
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44 |
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case "$host","$target" in
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45 |
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# Darwin crosses can use the host system's libraries and headers,
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46 |
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# because of the fat library support. Of course, it must be the
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47 |
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# same version of Darwin on both sides. Allow the user to
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48 |
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# just say --target=foo-darwin without a version number to mean
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49 |
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# "the version on this system".
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50 |
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*-*-darwin*,*-*-darwin*)
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51 |
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hostos=`echo $host | sed 's/.*-darwin/darwin/'`
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52 |
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targetos=`echo $target | sed 's/.*-darwin/darwin/'`
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53 |
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if test $hostos = $targetos -o $targetos = darwin ; then
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54 |
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GLIBCXX_IS_NATIVE=true
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55 |
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fi
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56 |
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;;
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57 |
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58 |
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*)
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59 |
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GCC_NO_EXECUTABLES
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60 |
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;;
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61 |
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esac
|
62 |
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else
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63 |
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GLIBCXX_IS_NATIVE=true
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64 |
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fi
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65 |
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66 |
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# Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the
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67 |
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# following is magically included in AUTOMAKE_OPTIONS in each Makefile.am.
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68 |
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# 1.x: minimum required version
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69 |
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# no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch
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70 |
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# of other PACKAGE_* variables will, however, and there's nothing
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71 |
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# we can do about that; they come from AC_INIT).
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72 |
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# foreign: we don't follow the normal rules for GNU packages (no COPYING
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73 |
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# file in the top srcdir, etc, etc), so stop complaining.
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74 |
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# no-dependencies: turns off auto dependency generation (just for now)
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75 |
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# -Wall: turns on all automake warnings...
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76 |
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# -Wno-portability: ...except this one, since GNU make is now required.
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77 |
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AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dependencies -Wall -Wno-portability -Wno-override])
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78 |
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AH_TEMPLATE(PACKAGE, [Name of package])
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79 |
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AH_TEMPLATE(VERSION, [Version number of package])
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80 |
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81 |
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# Runs configure.host, finds CC, CXX, and assorted other critical bits. Sets
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82 |
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# up critical shell variables.
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83 |
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GLIBCXX_CONFIGURE
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84 |
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85 |
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AC_LIBTOOL_DLOPEN
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86 |
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AM_PROG_LIBTOOL
|
87 |
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AC_SUBST(enable_shared)
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88 |
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AC_SUBST(enable_static)
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89 |
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|
90 |
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# Possibly disable most of the library.
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91 |
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## TODO: Consider skipping unncessary tests altogether in this case, rather
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92 |
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## than just ignoring the results. Faster /and/ more correct, win win.
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93 |
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GLIBCXX_ENABLE_HOSTED
|
94 |
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95 |
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# Check for compiler support that doesn't require linking.
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96 |
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GLIBCXX_ENABLE_SJLJ_EXCEPTIONS
|
97 |
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GLIBCXX_ENABLE_PCH($is_hosted)
|
98 |
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99 |
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# Enable all the variable C++ runtime options.
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100 |
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GLIBCXX_ENABLE_CSTDIO
|
101 |
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GLIBCXX_ENABLE_CLOCALE
|
102 |
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GLIBCXX_ENABLE_ALLOCATOR
|
103 |
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GLIBCXX_ENABLE_CHEADERS($c_model) dnl c_model from configure.host
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104 |
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GLIBCXX_ENABLE_LONG_LONG([yes])
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105 |
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GLIBCXX_ENABLE_WCHAR_T([yes])
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106 |
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GLIBCXX_ENABLE_C99([yes])
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107 |
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GLIBCXX_ENABLE_CONCEPT_CHECKS([no])
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108 |
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GLIBCXX_ENABLE_DEBUG_FLAGS(["-g3 -O0"])
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109 |
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GLIBCXX_ENABLE_DEBUG([no])
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110 |
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GLIBCXX_ENABLE_CXX_FLAGS
|
111 |
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GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no])
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112 |
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113 |
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# No surprises, no surprises...
|
114 |
|
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GLIBCXX_ENABLE_THREADS
|
115 |
|
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if test $atomicity_dir = cpu/generic ; then
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116 |
|
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AC_MSG_WARN([No native atomic operations are provided for this platform.])
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117 |
|
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if test $target_thread_file = single; then
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118 |
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AC_MSG_WARN([They cannot be faked when thread support is disabled.])
|
119 |
|
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AC_MSG_WARN([Thread-safety of certain classes is not guaranteed.])
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120 |
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else
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121 |
|
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AC_MSG_WARN([They will be faked using a mutex.])
|
122 |
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AC_MSG_WARN([Performance of certain classes will degrade as a result.])
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123 |
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fi
|
124 |
|
|
fi
|
125 |
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|
126 |
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|
127 |
|
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if $GLIBCXX_IS_NATIVE; then
|
128 |
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|
129 |
|
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# We can do more elaborate tests that assume a working linker.
|
130 |
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CANADIAN=no
|
131 |
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|
132 |
|
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# Check for available headers.
|
133 |
|
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AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h machine/endian.h \
|
134 |
|
|
machine/param.h sys/machine.h fp.h locale.h float.h inttypes.h gconv.h \
|
135 |
|
|
sys/types.h sys/ipc.h sys/sem.h])
|
136 |
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|
137 |
|
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GLIBCXX_CHECK_COMPILER_FEATURES
|
138 |
|
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GLIBCXX_CHECK_LINKER_FEATURES
|
139 |
|
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GLIBCXX_CHECK_MATH_SUPPORT
|
140 |
|
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GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
|
141 |
|
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GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
|
142 |
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GLIBCXX_CHECK_ICONV_SUPPORT
|
143 |
|
|
GLIBCXX_CHECK_STDLIB_SUPPORT
|
144 |
|
|
|
145 |
|
|
# For showmanyc_helper().
|
146 |
|
|
AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h)
|
147 |
|
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GLIBCXX_CHECK_POLL
|
148 |
|
|
GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
|
149 |
|
|
|
150 |
|
|
# For xsputn_2().
|
151 |
|
|
AC_CHECK_HEADERS(sys/uio.h)
|
152 |
|
|
GLIBCXX_CHECK_WRITEV
|
153 |
|
|
|
154 |
|
|
# For the __streamoff_base_type typedef.
|
155 |
|
|
GLIBCXX_CHECK_INT64_T
|
156 |
|
|
|
157 |
|
|
# For LFS support.
|
158 |
|
|
GLIBCXX_CHECK_LFS
|
159 |
|
|
|
160 |
|
|
# For TLS support.
|
161 |
|
|
GCC_CHECK_TLS
|
162 |
|
|
|
163 |
|
|
AC_LC_MESSAGES
|
164 |
|
|
|
165 |
|
|
AC_TRY_COMPILE(
|
166 |
|
|
[#include ],
|
167 |
|
|
[sigjmp_buf env;
|
168 |
|
|
while (! sigsetjmp (env, 1))
|
169 |
|
|
siglongjmp (env, 1);
|
170 |
|
|
],
|
171 |
|
|
[AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available.])])
|
172 |
|
|
|
173 |
|
|
AC_FUNC_MMAP
|
174 |
|
|
|
175 |
|
|
else
|
176 |
|
|
|
177 |
|
|
# This lets us hard-code the functionality we know we'll have in the cross
|
178 |
|
|
# target environment. "Let" is a sugar-coated word placed on an especially
|
179 |
|
|
# dull and tedious hack, actually.
|
180 |
|
|
#
|
181 |
|
|
# Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros
|
182 |
|
|
# that involve linking, can't be used:
|
183 |
|
|
# "cannot open sim-crt0.o"
|
184 |
|
|
# "cannot open crt0.o"
|
185 |
|
|
# etc. All this is because there currently exists no unified, consistent
|
186 |
|
|
# way for top level CC information to be passed down to target directories:
|
187 |
|
|
# newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc.
|
188 |
|
|
# When all of that is done, all of this hokey, excessive AC_DEFINE junk for
|
189 |
|
|
# crosses can be removed.
|
190 |
|
|
|
191 |
|
|
# If Canadian cross, then don't pick up tools from the build directory.
|
192 |
|
|
# Used only in GLIBCXX_EXPORT_INCLUDES.
|
193 |
|
|
if test -n "$with_cross_host" &&
|
194 |
|
|
test x"$build_alias" != x"$with_cross_host" &&
|
195 |
|
|
test x"$build" != x"$target";
|
196 |
|
|
then
|
197 |
|
|
CANADIAN=yes
|
198 |
|
|
else
|
199 |
|
|
CANADIAN=no
|
200 |
|
|
fi
|
201 |
|
|
|
202 |
|
|
# Construct crosses by hand, eliminating bits that need ld...
|
203 |
|
|
# GLIBCXX_CHECK_COMPILER_FEATURES
|
204 |
|
|
# GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
|
205 |
|
|
# GLIBCXX_CHECK_MATH_SUPPORT
|
206 |
|
|
|
207 |
|
|
# First, test for "known" system libraries. We may be using newlib even
|
208 |
|
|
# on a hosted environment.
|
209 |
|
|
if test "x${with_newlib}" = "xyes"; then
|
210 |
|
|
os_include_dir="os/newlib"
|
211 |
|
|
AC_DEFINE(HAVE_HYPOT)
|
212 |
|
|
|
213 |
|
|
# GLIBCXX_CHECK_STDLIB_SUPPORT
|
214 |
|
|
AC_DEFINE(HAVE_STRTOF)
|
215 |
|
|
# AC_FUNC_MMAP
|
216 |
|
|
AC_DEFINE(HAVE_MMAP)
|
217 |
|
|
|
218 |
|
|
AC_DEFINE(HAVE_ACOSF)
|
219 |
|
|
AC_DEFINE(HAVE_ASINF)
|
220 |
|
|
AC_DEFINE(HAVE_ATAN2F)
|
221 |
|
|
AC_DEFINE(HAVE_ATANF)
|
222 |
|
|
AC_DEFINE(HAVE_CEILF)
|
223 |
|
|
AC_DEFINE(HAVE_COPYSIGN)
|
224 |
|
|
AC_DEFINE(HAVE_COPYSIGNF)
|
225 |
|
|
AC_DEFINE(HAVE_COSF)
|
226 |
|
|
AC_DEFINE(HAVE_COSHF)
|
227 |
|
|
AC_DEFINE(HAVE_EXPF)
|
228 |
|
|
AC_DEFINE(HAVE_FABSF)
|
229 |
|
|
AC_DEFINE(HAVE_FLOORF)
|
230 |
|
|
AC_DEFINE(HAVE_FMODF)
|
231 |
|
|
AC_DEFINE(HAVE_FREXPF)
|
232 |
|
|
AC_DEFINE(HAVE_LDEXPF)
|
233 |
|
|
AC_DEFINE(HAVE_LOG10F)
|
234 |
|
|
AC_DEFINE(HAVE_LOGF)
|
235 |
|
|
AC_DEFINE(HAVE_MODFF)
|
236 |
|
|
AC_DEFINE(HAVE_POWF)
|
237 |
|
|
AC_DEFINE(HAVE_SINF)
|
238 |
|
|
AC_DEFINE(HAVE_SINHF)
|
239 |
|
|
AC_DEFINE(HAVE_SQRTF)
|
240 |
|
|
AC_DEFINE(HAVE_TANF)
|
241 |
|
|
AC_DEFINE(HAVE_TANHF)
|
242 |
|
|
|
243 |
|
|
AC_DEFINE(HAVE_S_ISREG)
|
244 |
|
|
AC_DEFINE(HAVE_S_IFREG)
|
245 |
|
|
else
|
246 |
|
|
GLIBCXX_CROSSCONFIG
|
247 |
|
|
fi
|
248 |
|
|
|
249 |
|
|
# At some point, we should differentiate between architectures
|
250 |
|
|
# like x86, which have long double versions, and alpha/powerpc/etc.,
|
251 |
|
|
# which don't. For the time being, punt.
|
252 |
|
|
if test x"long_double_math_on_this_cpu" = x"yes"; then
|
253 |
|
|
AC_DEFINE(HAVE_ACOSL)
|
254 |
|
|
AC_DEFINE(HAVE_ASINL)
|
255 |
|
|
AC_DEFINE(HAVE_ATAN2L)
|
256 |
|
|
AC_DEFINE(HAVE_ATANL)
|
257 |
|
|
AC_DEFINE(HAVE_CEILL)
|
258 |
|
|
AC_DEFINE(HAVE_COPYSIGNL)
|
259 |
|
|
AC_DEFINE(HAVE_COSL)
|
260 |
|
|
AC_DEFINE(HAVE_COSHL)
|
261 |
|
|
AC_DEFINE(HAVE_EXPL)
|
262 |
|
|
AC_DEFINE(HAVE_FABSL)
|
263 |
|
|
AC_DEFINE(HAVE_FLOORL)
|
264 |
|
|
AC_DEFINE(HAVE_FMODL)
|
265 |
|
|
AC_DEFINE(HAVE_FREXPL)
|
266 |
|
|
AC_DEFINE(HAVE_LDEXPL)
|
267 |
|
|
AC_DEFINE(HAVE_LOG10L)
|
268 |
|
|
AC_DEFINE(HAVE_LOGL)
|
269 |
|
|
AC_DEFINE(HAVE_MODFL)
|
270 |
|
|
AC_DEFINE(HAVE_POWL)
|
271 |
|
|
AC_DEFINE(HAVE_SINCOSL)
|
272 |
|
|
AC_DEFINE(HAVE_SINL)
|
273 |
|
|
AC_DEFINE(HAVE_SINHL)
|
274 |
|
|
AC_DEFINE(HAVE_SQRTL)
|
275 |
|
|
AC_DEFINE(HAVE_TANL)
|
276 |
|
|
AC_DEFINE(HAVE_TANHL)
|
277 |
|
|
fi
|
278 |
|
|
|
279 |
|
|
fi
|
280 |
|
|
|
281 |
|
|
# This depends on GLIBCXX CHECK_LINKER_FEATURES, but without it assumes no.
|
282 |
|
|
GLIBCXX_ENABLE_SYMVERS([yes])
|
283 |
|
|
|
284 |
|
|
# This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE.
|
285 |
|
|
GLIBCXX_CONFIGURE_TESTSUITE
|
286 |
|
|
|
287 |
|
|
# Propagate the target-specific source directories through the build chain.
|
288 |
|
|
ATOMICITY_SRCDIR=config/${atomicity_dir}
|
289 |
|
|
ATOMIC_WORD_SRCDIR=config/${atomic_word_dir}
|
290 |
|
|
CPU_DEFINES_SRCDIR=config/${cpu_defines_dir}
|
291 |
|
|
OS_INC_SRCDIR=config/${os_include_dir}
|
292 |
|
|
ABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir}
|
293 |
|
|
AC_SUBST(ATOMICITY_SRCDIR)
|
294 |
|
|
AC_SUBST(ATOMIC_WORD_SRCDIR)
|
295 |
|
|
AC_SUBST(CPU_DEFINES_SRCDIR)
|
296 |
|
|
AC_SUBST(ABI_TWEAKS_SRCDIR)
|
297 |
|
|
AC_SUBST(OS_INC_SRCDIR)
|
298 |
|
|
|
299 |
|
|
# Determine cross-compile flags and AM_CONDITIONALs.
|
300 |
|
|
#AC_SUBST(GLIBCXX_IS_NATIVE)
|
301 |
|
|
#AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes)
|
302 |
|
|
# from GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT:
|
303 |
|
|
#AM_CONDITIONAL(GLIBCXX_BUILD_LIBMATH, test $need_libmath = yes)
|
304 |
|
|
GLIBCXX_EVALUATE_CONDITIONALS
|
305 |
|
|
|
306 |
|
|
AC_CACHE_SAVE
|
307 |
|
|
|
308 |
|
|
if test ${multilib} = yes; then
|
309 |
|
|
multilib_arg="--enable-multilib"
|
310 |
|
|
else
|
311 |
|
|
multilib_arg=
|
312 |
|
|
fi
|
313 |
|
|
|
314 |
|
|
# Export all the install information.
|
315 |
|
|
GLIBCXX_EXPORT_INSTALL_INFO
|
316 |
|
|
|
317 |
|
|
# Export all the include and flag information to Makefiles.
|
318 |
|
|
GLIBCXX_EXPORT_INCLUDES
|
319 |
|
|
GLIBCXX_EXPORT_FLAGS
|
320 |
|
|
|
321 |
|
|
if ${CONFIG_SHELL-/bin/sh} ./libtool --tag CXX --features |
|
322 |
|
|
grep "enable shared" > /dev/null;
|
323 |
|
|
then
|
324 |
|
|
LIBSUPCXX_PICFLAGS=-prefer-pic
|
325 |
|
|
else
|
326 |
|
|
LIBSUPCXX_PICFLAGS=
|
327 |
|
|
fi
|
328 |
|
|
AC_SUBST(LIBSUPCXX_PICFLAGS)
|
329 |
|
|
|
330 |
|
|
dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros,
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dnl which can all be called multiple times as needed, plus one (different)
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dnl AC_OUTPUT macro. This one lists the files to be created:
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|
AC_CONFIG_FILES( \
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Makefile \
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|
AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ])
|
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|
|
)
|
337 |
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|
AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags])
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|
|
|
339 |
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dnl These commands are run at the end of config.status:
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|
|
AC_CONFIG_COMMANDS([default],
|
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|
|
[if test -n "$CONFIG_FILES"; then
|
342 |
|
|
# Multilibs need MULTISUBDIR defined correctly in certain makefiles so
|
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|
|
# that multilib installs will end up installed in the correct place.
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|
|
# The testsuite needs it for multilib-aware ABI baseline files.
|
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|
|
# To work around this not being passed down from config-ml.in ->
|
346 |
|
|
# srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually
|
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|
|
# append it here. Only modify Makefiles that have just been created.
|
348 |
|
|
#
|
349 |
|
|
# Also, get rid of this simulated-VPATH thing that automake does.
|
350 |
|
|
cat > vpsed << \_EOF
|
351 |
|
|
s!`test -f '$<' || echo '$(srcdir)/'`!!
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352 |
|
|
_EOF
|
353 |
|
|
for i in $SUBDIRS; do
|
354 |
|
|
case $CONFIG_FILES in
|
355 |
|
|
*${i}/Makefile*)
|
356 |
|
|
#echo "Adding MULTISUBDIR to $i/Makefile"
|
357 |
|
|
sed -f vpsed $i/Makefile > tmp
|
358 |
|
|
grep '^MULTISUBDIR =' Makefile >> tmp
|
359 |
|
|
mv tmp $i/Makefile
|
360 |
|
|
;;
|
361 |
|
|
esac
|
362 |
|
|
done
|
363 |
|
|
rm vpsed
|
364 |
|
|
fi
|
365 |
|
|
(cd include && ${MAKE-make})
|
366 |
|
|
],
|
367 |
|
|
[
|
368 |
|
|
# Variables needed in config.status (file generation) which aren't already
|
369 |
|
|
# passed by autoconf.
|
370 |
|
|
SUBDIRS="$SUBDIRS"
|
371 |
|
|
])
|
372 |
|
|
|
373 |
|
|
dnl And this actually makes things happen:
|
374 |
|
|
AC_OUTPUT
|