1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/build/autoconf/toolchain.m4 Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,227 @@
1.4 +dnl This Source Code Form is subject to the terms of the Mozilla Public
1.5 +dnl License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 +dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
1.7 +
1.8 +AC_DEFUN([MOZ_TOOL_VARIABLES],
1.9 +[
1.10 +GNU_AS=
1.11 +GNU_LD=
1.12 +GNU_CC=
1.13 +GNU_CXX=
1.14 +CC_VERSION='N/A'
1.15 +CXX_VERSION='N/A'
1.16 +if test "$GCC" = "yes"; then
1.17 + GNU_CC=1
1.18 + CC_VERSION=`$CC -v 2>&1 | grep 'gcc version'`
1.19 +fi
1.20 +if test "$GXX" = "yes"; then
1.21 + GNU_CXX=1
1.22 + CXX_VERSION=`$CXX -v 2>&1 | grep 'gcc version'`
1.23 + changequote(<<,>>)
1.24 + GCC_VERSION_FULL=`echo "$CXX_VERSION" | $PERL -pe 's/^.*gcc version ([^ ]*).*/<<$>>1/'`
1.25 + GCC_VERSION=`echo "$GCC_VERSION_FULL" | $PERL -pe '(split(/\./))[0]>=4&&s/(^\d*\.\d*).*/<<$>>1/;'`
1.26 +
1.27 + GCC_MAJOR_VERSION=`echo ${GCC_VERSION} | $AWK -F\. '{ print <<$>>1 }'`
1.28 + GCC_MINOR_VERSION=`echo ${GCC_VERSION} | $AWK -F\. '{ print <<$>>2 }'`
1.29 + changequote([,])
1.30 +fi
1.31 +
1.32 +if test "`echo | $AS -o conftest.out -v 2>&1 | grep -c GNU`" != "0"; then
1.33 + GNU_AS=1
1.34 +fi
1.35 +rm -f conftest.out
1.36 +if test "`echo | $LD -v 2>&1 | grep -c GNU`" != "0"; then
1.37 + GNU_LD=1
1.38 +fi
1.39 +if test "$GNU_CC"; then
1.40 + if `$CC -print-prog-name=ld` -v 2>&1 | grep -c GNU >/dev/null; then
1.41 + GCC_USE_GNU_LD=1
1.42 + fi
1.43 +fi
1.44 +
1.45 +INTEL_CC=
1.46 +INTEL_CXX=
1.47 +if test "$GCC" = yes; then
1.48 + if test "`$CC -help 2>&1 | grep -c 'Intel(R) C++ Compiler'`" != "0"; then
1.49 + INTEL_CC=1
1.50 + fi
1.51 +fi
1.52 +
1.53 +if test "$GXX" = yes; then
1.54 + if test "`$CXX -help 2>&1 | grep -c 'Intel(R) C++ Compiler'`" != "0"; then
1.55 + INTEL_CXX=1
1.56 + fi
1.57 +fi
1.58 +
1.59 +CLANG_CC=
1.60 +CLANG_CXX=
1.61 +if test "`$CC -v 2>&1 | egrep -c '(clang version|Apple.*clang)'`" != "0"; then
1.62 + CLANG_CC=1
1.63 +fi
1.64 +
1.65 +if test "`$CXX -v 2>&1 | egrep -c '(clang version|Apple.*clang)'`" != "0"; then
1.66 + CLANG_CXX=1
1.67 +fi
1.68 +AC_SUBST(CLANG_CXX)
1.69 +])
1.70 +
1.71 +AC_DEFUN([MOZ_CROSS_COMPILER],
1.72 +[
1.73 +echo "cross compiling from $host to $target"
1.74 +
1.75 +_SAVE_CC="$CC"
1.76 +_SAVE_CFLAGS="$CFLAGS"
1.77 +_SAVE_LDFLAGS="$LDFLAGS"
1.78 +
1.79 +AC_MSG_CHECKING([for host c compiler])
1.80 +AC_CHECK_PROGS(HOST_CC, cc gcc clang cl, "")
1.81 +if test -z "$HOST_CC"; then
1.82 + AC_MSG_ERROR([no acceptable c compiler found in \$PATH])
1.83 +fi
1.84 +AC_MSG_RESULT([$HOST_CC])
1.85 +AC_MSG_CHECKING([for host c++ compiler])
1.86 +AC_CHECK_PROGS(HOST_CXX, c++ g++ clang++ cl, "")
1.87 +if test -z "$HOST_CXX"; then
1.88 + AC_MSG_ERROR([no acceptable c++ compiler found in \$PATH])
1.89 +fi
1.90 +AC_MSG_RESULT([$HOST_CXX])
1.91 +
1.92 +if test -z "$HOST_CFLAGS"; then
1.93 + HOST_CFLAGS="$CFLAGS"
1.94 +fi
1.95 +if test -z "$HOST_CXXFLAGS"; then
1.96 + HOST_CXXFLAGS="$CXXFLAGS"
1.97 +fi
1.98 +if test -z "$HOST_LDFLAGS"; then
1.99 + HOST_LDFLAGS="$LDFLAGS"
1.100 +fi
1.101 +if test -z "$HOST_AR_FLAGS"; then
1.102 + HOST_AR_FLAGS="$AR_FLAGS"
1.103 +fi
1.104 +AC_CHECK_PROGS(HOST_RANLIB, $HOST_RANLIB ranlib, ranlib, :)
1.105 +AC_CHECK_PROGS(HOST_AR, $HOST_AR ar, ar, :)
1.106 +CC="$HOST_CC"
1.107 +CFLAGS="$HOST_CFLAGS"
1.108 +LDFLAGS="$HOST_LDFLAGS"
1.109 +
1.110 +AC_MSG_CHECKING([whether the host c compiler ($HOST_CC $HOST_CFLAGS $HOST_LDFLAGS) works])
1.111 +AC_TRY_COMPILE([], [return(0);],
1.112 + [ac_cv_prog_hostcc_works=1 AC_MSG_RESULT([yes])],
1.113 + AC_MSG_ERROR([installation or configuration problem: host compiler $HOST_CC cannot create executables.]) )
1.114 +
1.115 +CC="$HOST_CXX"
1.116 +CFLAGS="$HOST_CXXFLAGS"
1.117 +AC_MSG_CHECKING([whether the host c++ compiler ($HOST_CXX $HOST_CXXFLAGS $HOST_LDFLAGS) works])
1.118 +AC_TRY_COMPILE([], [return(0);],
1.119 + [ac_cv_prog_hostcxx_works=1 AC_MSG_RESULT([yes])],
1.120 + AC_MSG_ERROR([installation or configuration problem: host compiler $HOST_CXX cannot create executables.]) )
1.121 +
1.122 +CC=$_SAVE_CC
1.123 +CFLAGS=$_SAVE_CFLAGS
1.124 +LDFLAGS=$_SAVE_LDFLAGS
1.125 +
1.126 +AC_CHECK_PROGS(CC, "${target_alias}-gcc" "${target}-gcc", :)
1.127 +unset ac_cv_prog_CC
1.128 +AC_PROG_CC
1.129 +AC_CHECK_PROGS(CXX, "${target_alias}-g++" "${target}-g++", :)
1.130 +unset ac_cv_prog_CXX
1.131 +AC_PROG_CXX
1.132 +
1.133 +AC_CHECK_PROGS(RANLIB, "${target_alias}-ranlib" "${target}-ranlib", :)
1.134 +AC_CHECK_PROGS(AR, "${target_alias}-ar" "${target}-ar", :)
1.135 +MOZ_PATH_PROGS(AS, "${target_alias}-as" "${target}-as", :)
1.136 +AC_CHECK_PROGS(LD, "${target_alias}-ld" "${target}-ld", :)
1.137 +AC_CHECK_PROGS(STRIP, "${target_alias}-strip" "${target}-strip", :)
1.138 +AC_CHECK_PROGS(WINDRES, "${target_alias}-windres" "${target}-windres", :)
1.139 +AC_DEFINE(CROSS_COMPILE)
1.140 +CROSS_COMPILE=1
1.141 +
1.142 +dnl If we cross compile for ppc on Mac OS X x86, cross_compiling will
1.143 +dnl dnl have erroneously been set to "no", because the x86 build host is
1.144 +dnl dnl able to run ppc code in a translated environment, making a cross
1.145 +dnl dnl compiler appear native. So we override that here.
1.146 +cross_compiling=yes
1.147 +])
1.148 +
1.149 +AC_DEFUN([MOZ_CXX11],
1.150 +[
1.151 +dnl Check whether gcc's c++0x mode works
1.152 +dnl Updates to the test below should be duplicated further below for the
1.153 +dnl cross-compiling case.
1.154 +AC_LANG_CPLUSPLUS
1.155 +if test "$GNU_CXX"; then
1.156 + CXXFLAGS="$CXXFLAGS -std=gnu++0x"
1.157 + _ADDED_CXXFLAGS="-std=gnu++0x"
1.158 +
1.159 + AC_CACHE_CHECK(for gcc c++0x headers bug without rtti,
1.160 + ac_cv_cxx0x_headers_bug,
1.161 + [AC_TRY_COMPILE([#include <memory>], [],
1.162 + ac_cv_cxx0x_headers_bug="no",
1.163 + ac_cv_cxx0x_headers_bug="yes")])
1.164 +
1.165 + if test "$CLANG_CXX" -a "$ac_cv_cxx0x_headers_bug" = "yes"; then
1.166 + CXXFLAGS="$CXXFLAGS -I$_topsrcdir/build/unix/headers"
1.167 + _ADDED_CXXFLAGS="$_ADDED_CXXFLAGS -I$_topsrcdir/build/unix/headers"
1.168 + AC_CACHE_CHECK(whether workaround for gcc c++0x headers conflict with clang works,
1.169 + ac_cv_cxx0x_clang_workaround,
1.170 + [AC_TRY_COMPILE([#include <memory>], [],
1.171 + ac_cv_cxx0x_clang_workaround="yes",
1.172 + ac_cv_cxx0x_clang_workaround="no")])
1.173 +
1.174 + if test "ac_cv_cxx0x_clang_workaround" = "no"; then
1.175 + AC_MSG_ERROR([Your toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
1.176 + fi
1.177 + elif test "$ac_cv_cxx0x_headers_bug" = "yes"; then
1.178 + AC_MSG_ERROR([Your toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
1.179 + fi
1.180 +fi
1.181 +if test -n "$CROSS_COMPILE"; then
1.182 + dnl When cross compile, we have no variable telling us what the host compiler is. Figure it out.
1.183 + cat > conftest.C <<EOF
1.184 +#if defined(__clang__)
1.185 +CLANG
1.186 +#elif defined(__GNUC__)
1.187 +GCC
1.188 +#endif
1.189 +EOF
1.190 + host_compiler=`$HOST_CXX -E conftest.C | egrep '(CLANG|GCC)'`
1.191 + rm conftest.C
1.192 + if test -n "$host_compiler"; then
1.193 + HOST_CXXFLAGS="$HOST_CXXFLAGS -std=gnu++0x"
1.194 +
1.195 + _SAVE_CXXFLAGS="$CXXFLAGS"
1.196 + _SAVE_CPPFLAGS="$CPPFLAGS"
1.197 + _SAVE_CXX="$CXX"
1.198 + CXXFLAGS="$HOST_CXXFLAGS"
1.199 + CPPFLAGS="$HOST_CPPFLAGS"
1.200 + CXX="$HOST_CXX"
1.201 + AC_CACHE_CHECK(for host gcc c++0x headers bug without rtti,
1.202 + ac_cv_host_cxx0x_headers_bug,
1.203 + [AC_TRY_COMPILE([#include <memory>], [],
1.204 + ac_cv_host_cxx0x_headers_bug="no",
1.205 + ac_cv_host_cxx0x_headers_bug="yes")])
1.206 +
1.207 + if test "$host_compiler" = CLANG -a "$ac_cv_host_cxx0x_headers_bug" = "yes"; then
1.208 + CXXFLAGS="$CXXFLAGS -I$_topsrcdir/build/unix/headers"
1.209 + AC_CACHE_CHECK(whether workaround for host gcc c++0x headers conflict with host clang works,
1.210 + ac_cv_host_cxx0x_clang_workaround,
1.211 + [AC_TRY_COMPILE([#include <memory>], [],
1.212 + ac_cv_host_cxx0x_clang_workaround="yes",
1.213 + ac_cv_host_cxx0x_clang_workaround="no")])
1.214 +
1.215 + if test "ac_cv_host_cxx0x_clang_workaround" = "no"; then
1.216 + AC_MSG_ERROR([Your host toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
1.217 + fi
1.218 + HOST_CXXFLAGS="$CXXFLAGS"
1.219 + elif test "$ac_cv_host_cxx0x_headers_bug" = "yes"; then
1.220 + AC_MSG_ERROR([Your host toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
1.221 + fi
1.222 + CXXFLAGS="$_SAVE_CXXFLAGS"
1.223 + CPPFLAGS="$_SAVE_CPPFLAGS"
1.224 + CXX="$_SAVE_CXX"
1.225 + fi
1.226 +elif test "$GNU_CXX"; then
1.227 + HOST_CXXFLAGS="$HOST_CXXFLAGS $_ADDED_CXXFLAGS"
1.228 +fi
1.229 +AC_LANG_C
1.230 +])
