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111
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1 # -*- Autoconf -*-
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2 # Process this file with autoconf to produce a configure script.
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3
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4 AC_PREREQ([2.64])
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5 AC_INIT([GNU Vtable Verification Runtime Library], 1.0,,[libvtv])
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6 #AC_INIT(package-unused, version-unused, libvtv)
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7 AC_CONFIG_SRCDIR([vtv_rts.h])
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8
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9 AM_ENABLE_MULTILIB(, ..)
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10
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11 # -------
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12 # Options
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13 # -------
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14 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
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15 AC_ARG_ENABLE(version-specific-runtime-libs,
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16 [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
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17 [case "$enableval" in
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18 yes) version_specific_libs=yes ;;
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19 no) version_specific_libs=no ;;
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20 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
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21 esac],
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22 [version_specific_libs=no])
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23 AC_MSG_RESULT($version_specific_libs)
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24
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25 # Do not delete or change the following two lines. For why, see
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26 # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
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27 AC_CANONICAL_SYSTEM
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28 target_alias=${target_alias-$host_alias}
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29 AC_SUBST(target_alias)
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30 GCC_LIBSTDCXX_RAW_CXX_FLAGS
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31
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32 AC_USE_SYSTEM_EXTENSIONS
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33
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34 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
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35 AC_MSG_CHECKING([for --enable-vtable-verify])
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36 AC_ARG_ENABLE(vtable-verify,
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37 [ --enable-vtable-verify Enable vtable verification feature ],
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38 [case "$enableval" in
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39 yes) enable_vtable_verify=yes ;;
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40 no) enable_vtable_verify=no ;;
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41 *) enable_vtable_verify=no;;
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42 esac],
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43 [enable_vtable_verify=no])
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44 AC_MSG_RESULT($enable_vtable_verify)
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45
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46 # See if supported.
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47 unset VTV_SUPPORTED
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48 AC_MSG_CHECKING([for host support for vtable verification])
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49 . ${srcdir}/configure.tgt
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50 case ${host} in
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51 *-*-solaris2*)
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52 # libvtv requires init priority support, which depends on the linker
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53 # used on Solaris.
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54 AC_CACHE_CHECK(for init priority support, libvtv_cv_init_priority, [
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55 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,
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56 [[void ip (void) __attribute__ ((constructor (1)));]])],
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57 [libgcc_cv_init_priority=yes],[libgcc_cv_init_priority=no])])
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58 if test x$libvtv_cv_init_priority = xno; then
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59 VTV_SUPPORTED=no
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60 fi
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61 # FIXME: Maybe check for dl_iterate_phdr, too? Should be covered by
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62 # configure.tgt restricting to libvtv to Solaris 11+.
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63 ;;
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64 esac
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65 AC_MSG_RESULT($VTV_SUPPORTED)
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66
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67 # Decide if it's usable.
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68 use_vtable_verify=no
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69 if test "x$VTV_SUPPORTED" = "xyes"; then
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70 if test "x$enable_vtable_verify" = "xyes"; then
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71 use_vtable_verify=yes
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72 AC_MSG_NOTICE(using vtable verification)
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73 fi
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74 fi
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75 AM_CONDITIONAL(ENABLE_VTABLE_VERIFY, test $use_vtable_verify = yes)
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76
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77 AM_INIT_AUTOMAKE(foreign no-dist)
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78 AM_MAINTAINER_MODE
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79
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80 LIBVTV_CONFIGURE
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81
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82 # Calculate toolexeclibdir
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83 # Also toolexecdir, though it's only used in toolexeclibdir
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84 case ${version_specific_libs} in
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85 yes)
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86 # Need the gcc compiler version to know where to install libraries
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87 # and header files if --enable-version-specific-runtime-libs option
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88 # is selected.
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89 toolexecdir='$(libdir)/gcc/$(target_alias)'
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90 toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
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91 ;;
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92 no)
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93 if test -n "$with_cross_host" &&
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94 test x"$with_cross_host" != x"no"; then
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95 # Install a library built with a cross compiler in tooldir, not libdir.
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96 toolexecdir='$(exec_prefix)/$(target_alias)'
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97 toolexeclibdir='$(toolexecdir)/lib'
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98 else
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99 toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
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100 toolexeclibdir='$(libdir)'
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101 fi
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102 multi_os_directory=`$CC -print-multi-os-directory`
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103 case $multi_os_directory in
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104 .) ;; # Avoid trailing /.
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105 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
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106 esac
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107 ;;
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108 esac
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109 AC_SUBST(toolexecdir)
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110 AC_SUBST(toolexeclibdir)
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111
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112 AC_GNU_SOURCE
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113 AC_CHECK_FUNCS([__secure_getenv])
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114
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115 AC_GNU_SOURCE
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116 AC_CHECK_FUNCS([secure_getenv])
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117
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118 AC_CHECK_FUNCS([getexecname __fortify_fail])
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119
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120 # Check for programs.
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121 m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
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122 m4_define([_AC_ARG_VAR_PRECIOUS],[])
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123 AC_PROG_CC
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124 AC_PROG_CXX
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125 m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
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126
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127 AM_PROG_CC_C_O
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128
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129 AC_SUBST(CFLAGS)
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130 AC_SUBST(CXXFLAGS)
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131
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132 # Newer automakes demand CCAS and CCASFLAGS.
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133 : ${CCAS='$(CC)'}
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134 : ${CCASFLAGS='$(CFLAGS)'}
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135 AC_SUBST(CCAS)
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136 AC_SUBST(CCASFLAGS)
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137
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138 AC_CHECK_TOOL(AS, as)
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139 AC_CHECK_TOOL(AR, ar)
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140 AC_CHECK_TOOL(RANLIB, ranlib, :)
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141
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142 # Configure libtool
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143 AC_LIBTOOL_DLOPEN
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144 AM_PROG_LIBTOOL
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145 ACX_LT_HOST_FLAGS
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146 AC_SUBST(enable_shared)
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147 AC_SUBST(enable_static)
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148
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149 # For libtool versioning info, format is CURRENT:REVISION:AGE
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150 libtool_VERSION=1:0:0
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151 AC_SUBST(libtool_VERSION)
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152
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153 XCFLAGS="-D_GNU_SOURCE -Wall -Wextra -fno-exceptions"
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154 AC_SUBST(XCFLAGS)
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155
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156 if test "${multilib}" = "yes"; then
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157 multilib_arg="--enable-multilib"
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158 else
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159 multilib_arg=
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160 fi
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161
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162 AC_CONFIG_FILES([Makefile])
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163
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164 if test "x$VTV_SUPPORTED" = "xyes"; then
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165 AC_CONFIG_FILES(AC_FOREACH([DIR], [testsuite], [DIR/Makefile ]),
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166 [cat > vpsed$$ << \_EOF
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167 s!`test -f '$<' || echo '$(srcdir)/'`!!
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168 _EOF
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169 sed -f vpsed$$ $ac_file > tmp$$
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170 mv tmp$$ $ac_file
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171 rm vpsed$$
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172 echo 'MULTISUBDIR =' >> $ac_file
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173 ml_norecursion=yes
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174 . ${multi_basedir}/config-ml.in
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175 AS_UNSET([ml_norecursion])
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176 ])
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177 fi
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178
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179 case "$target_os" in
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180 cygwin*|mingw32*)
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181 vtv_cygmin="yes"
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182 ;;
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183 *)
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184 vtv_cygmin="no"
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185 ;;
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186 esac
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187
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188 AM_CONDITIONAL(VTV_CYGMIN, test $vtv_cygmin = yes)
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189
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190 AC_CHECK_FUNCS([_obstack_begin])
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191 AM_CONDITIONAL(VTV_NO_OBSTACK, test $ac_cv_func__obstack_begin = no)
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192
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193 # Determine what GCC version number to use in filesystem paths.
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194 GCC_BASE_VER
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195
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196 AC_OUTPUT
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