зеркало из https://github.com/mozilla/gecko-dev.git
333 строки
12 KiB
Plaintext
333 строки
12 KiB
Plaintext
dnl This Source Code Form is subject to the terms of the Mozilla Public
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dnl License, v. 2.0. If a copy of the MPL was not distributed with this
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dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
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AC_DEFUN([MOZ_TOOL_VARIABLES],
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[
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GNU_AS=
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GNU_LD=
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GNU_CC=
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GNU_CXX=
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CC_VERSION='N/A'
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CXX_VERSION='N/A'
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cat <<EOF > conftest.c
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#if defined(_MSC_VER)
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#if defined(__clang__)
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COMPILER clang-cl _MSC_VER
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#else
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COMPILER msvc _MSC_FULL_VER
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#endif
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#elif defined(__clang__)
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COMPILER clang __clang_major__.__clang_minor__.__clang_patchlevel__
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#elif defined(__GNUC__)
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COMPILER gcc __GNUC__.__GNUC_MINOR__.__GNUC_PATCHLEVEL__
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#elif defined(__INTEL_COMPILER)
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COMPILER icc __INTEL_COMPILER
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#endif
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EOF
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read dummy compiler CC_VERSION <<EOF
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$($CC -E $CPPFLAGS $CFLAGS conftest.c 2>/dev/null | grep COMPILER)
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EOF
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read dummy cxxcompiler CXX_VERSION <<EOF
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$($CXX -E $CPPFLAGS $CXXFLAGS conftest.c 2>/dev/null | grep COMPILER)
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EOF
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if test "$compiler" != "$cxxcompiler"; then
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AC_MSG_ERROR([Your C and C++ compilers are different. You need to use the same compiler.])
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fi
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if test "$CC_VERSION" != "$CXX_VERSION"; then
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# This may not be strictly necessary, but if we want to drop it, we
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# should make sure any version checks below apply to both the C and
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# C++ compiler versions.
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AC_MSG_ERROR([Your C and C++ compiler versions are different. You need to use the same compiler version.])
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fi
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CC_VERSION=`echo "$CC_VERSION" | sed 's/ //g'`
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CXX_VERSION=`echo "$CXX_VERSION" | sed 's/ //g'`
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if test "$compiler" = "gcc"; then
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GNU_CC=1
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GNU_CXX=1
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changequote(<<,>>)
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GCC_VERSION_FULL="$CXX_VERSION"
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GCC_VERSION=`echo "$GCC_VERSION_FULL" | $PERL -pe '(split(/\./))[0]>=4&&s/(^\d*\.\d*).*/<<$>>1/;'`
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GCC_MAJOR_VERSION=`echo ${GCC_VERSION} | $AWK -F\. '{ print <<$>>1 }'`
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GCC_MINOR_VERSION=`echo ${GCC_VERSION} | $AWK -F\. '{ print <<$>>2 }'`
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changequote([,])
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fi
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if test "`echo | $AS -o conftest.out -v 2>&1 | grep -c GNU`" != "0"; then
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GNU_AS=1
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fi
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rm -f conftest.out
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if test "`echo | $LD -v 2>&1 | grep -c GNU`" != "0"; then
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GNU_LD=1
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fi
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if test "$compiler" = "msvc"; then
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MSVC_VERSION_FULL="$CXX_VERSION"
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CC_VERSION=`echo ${CC_VERSION} | cut -c 1-4`
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CXX_VERSION=`echo ${CXX_VERSION} | cut -c 1-4`
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fi
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INTEL_CC=
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INTEL_CXX=
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if test "$compiler" = "icc"; then
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INTEL_CC=1
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INTEL_CXX=1
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fi
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CLANG_CC=
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CLANG_CXX=
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CLANG_CL=
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if test "$compiler" = "clang"; then
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GNU_CC=1
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GNU_CXX=1
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CLANG_CC=1
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CLANG_CXX=1
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fi
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if test "$compiler" = "clang-cl"; then
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CLANG_CL=1
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# We force clang-cl to emulate Visual C++ 2013 in configure.in, but that
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# is based on the CLANG_CL variable defined here, so make sure that we're
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# getting the right version here manually.
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CC_VERSION=1800
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CXX_VERSION=1800
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MSVC_VERSION_FULL=180030723
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# Build on clang-cl with MSVC 2013 Update 3 with fallback emulation.
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CFLAGS="$CFLAGS -fms-compatibility-version=18.00.30723 -fallback"
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CXXFLAGS="$CXXFLAGS -fms-compatibility-version=18.00.30723 -fallback"
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fi
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if test "$GNU_CC"; then
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if `$CC -print-prog-name=ld` -v 2>&1 | grep -c GNU >/dev/null; then
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GCC_USE_GNU_LD=1
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fi
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fi
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AC_SUBST(CLANG_CXX)
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AC_SUBST(CLANG_CL)
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if test -n "$GNU_CC" -a -z "$CLANG_CC" ; then
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if test "$GCC_MAJOR_VERSION" -eq 4 -a "$GCC_MINOR_VERSION" -lt 7 ||
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test "$GCC_MAJOR_VERSION" -lt 4; then
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AC_MSG_ERROR([Only GCC 4.7 or newer supported])
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fi
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fi
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])
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AC_DEFUN([MOZ_CROSS_COMPILER],
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[
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echo "cross compiling from $host to $target"
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_SAVE_CC="$CC"
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_SAVE_CFLAGS="$CFLAGS"
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_SAVE_LDFLAGS="$LDFLAGS"
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AC_MSG_CHECKING([for host c compiler])
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AC_CHECK_PROGS(HOST_CC, cc gcc clang cl, "")
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if test -z "$HOST_CC"; then
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AC_MSG_ERROR([no acceptable c compiler found in \$PATH])
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fi
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AC_MSG_RESULT([$HOST_CC])
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AC_MSG_CHECKING([for host c++ compiler])
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AC_CHECK_PROGS(HOST_CXX, c++ g++ clang++ cl, "")
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if test -z "$HOST_CXX"; then
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AC_MSG_ERROR([no acceptable c++ compiler found in \$PATH])
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fi
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AC_MSG_RESULT([$HOST_CXX])
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if test -z "$HOST_CFLAGS"; then
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HOST_CFLAGS="$CFLAGS"
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fi
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if test -z "$HOST_CXXFLAGS"; then
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HOST_CXXFLAGS="$CXXFLAGS"
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fi
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if test -z "$HOST_LDFLAGS"; then
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HOST_LDFLAGS="$LDFLAGS"
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fi
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if test -z "$HOST_AR_FLAGS"; then
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HOST_AR_FLAGS="$AR_FLAGS"
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fi
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AC_CHECK_PROGS(HOST_RANLIB, $HOST_RANLIB ranlib, ranlib, :)
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AC_CHECK_PROGS(HOST_AR, $HOST_AR ar, ar, :)
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CC="$HOST_CC"
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CFLAGS="$HOST_CFLAGS"
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LDFLAGS="$HOST_LDFLAGS"
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AC_MSG_CHECKING([whether the host c compiler ($HOST_CC $HOST_CFLAGS $HOST_LDFLAGS) works])
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AC_TRY_COMPILE([], [return(0);],
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[ac_cv_prog_hostcc_works=1 AC_MSG_RESULT([yes])],
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AC_MSG_ERROR([installation or configuration problem: host compiler $HOST_CC cannot create executables.]) )
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CC="$HOST_CXX"
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CFLAGS="$HOST_CXXFLAGS"
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AC_MSG_CHECKING([whether the host c++ compiler ($HOST_CXX $HOST_CXXFLAGS $HOST_LDFLAGS) works])
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AC_TRY_COMPILE([], [return(0);],
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[ac_cv_prog_hostcxx_works=1 AC_MSG_RESULT([yes])],
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AC_MSG_ERROR([installation or configuration problem: host compiler $HOST_CXX cannot create executables.]) )
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CC=$_SAVE_CC
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CFLAGS=$_SAVE_CFLAGS
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LDFLAGS=$_SAVE_LDFLAGS
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AC_CHECK_PROGS(CC, "${target_alias}-gcc" "${target}-gcc", :)
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unset ac_cv_prog_CC
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AC_PROG_CC
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AC_CHECK_PROGS(CXX, "${target_alias}-g++" "${target}-g++", :)
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unset ac_cv_prog_CXX
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AC_PROG_CXX
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AC_CHECK_PROGS(RANLIB, "${target_alias}-ranlib" "${target}-ranlib", :)
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AC_CHECK_PROGS(AR, "${target_alias}-ar" "${target}-ar", :)
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AC_CHECK_PROGS(AS, "${target_alias}-as" "${target}-as", :)
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AC_CHECK_PROGS(LD, "${target_alias}-ld" "${target}-ld", :)
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AC_CHECK_PROGS(STRIP, "${target_alias}-strip" "${target}-strip", :)
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AC_CHECK_PROGS(WINDRES, "${target_alias}-windres" "${target}-windres", :)
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AC_CHECK_PROGS(OTOOL, "${target_alias}-otool" "${target}-otool", :)
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AC_DEFINE(CROSS_COMPILE)
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CROSS_COMPILE=1
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dnl If we cross compile for ppc on Mac OS X x86, cross_compiling will
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dnl dnl have erroneously been set to "no", because the x86 build host is
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dnl dnl able to run ppc code in a translated environment, making a cross
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dnl dnl compiler appear native. So we override that here.
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cross_compiling=yes
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])
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AC_DEFUN([MOZ_CXX11],
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[
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dnl Check whether gcc's c++0x mode works
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dnl Updates to the test below should be duplicated further below for the
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dnl cross-compiling case.
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AC_LANG_CPLUSPLUS
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if test "$GNU_CXX"; then
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CXXFLAGS="$CXXFLAGS -std=gnu++0x"
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_ADDED_CXXFLAGS="-std=gnu++0x"
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AC_CACHE_CHECK(for gcc c++0x headers bug without rtti,
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ac_cv_cxx0x_headers_bug,
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[AC_TRY_COMPILE([#include <memory>], [],
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ac_cv_cxx0x_headers_bug="no",
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ac_cv_cxx0x_headers_bug="yes")])
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if test "$CLANG_CXX" -a "$ac_cv_cxx0x_headers_bug" = "yes"; then
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CXXFLAGS="$CXXFLAGS -I$_topsrcdir/build/unix/headers"
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_ADDED_CXXFLAGS="$_ADDED_CXXFLAGS -I$_topsrcdir/build/unix/headers"
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AC_CACHE_CHECK(whether workaround for gcc c++0x headers conflict with clang works,
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ac_cv_cxx0x_clang_workaround,
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[AC_TRY_COMPILE([#include <memory>], [],
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ac_cv_cxx0x_clang_workaround="yes",
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ac_cv_cxx0x_clang_workaround="no")])
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if test "ac_cv_cxx0x_clang_workaround" = "no"; then
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AC_MSG_ERROR([Your toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
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fi
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elif test "$ac_cv_cxx0x_headers_bug" = "yes"; then
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AC_MSG_ERROR([Your toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
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fi
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AC_CACHE_CHECK([whether 64-bits std::atomic requires -latomic],
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ac_cv_needs_atomic,
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AC_TRY_LINK(
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[#include <cstdint>
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#include <atomic>],
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[ std::atomic<uint64_t> foo; foo = 1; ],
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ac_cv_needs_atomic=no,
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_SAVE_LIBS="$LIBS"
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LIBS="$LIBS -latomic"
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AC_TRY_LINK(
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[#include <cstdint>
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#include <atomic>],
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[ std::atomic<uint64_t> foo; foo = 1; ],
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ac_cv_needs_atomic=yes,
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ac_cv_needs_atomic="do not know; assuming no")
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LIBS="$_SAVE_LIBS"
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)
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)
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if test "$ac_cv_needs_atomic" = yes; then
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MOZ_NEEDS_LIBATOMIC=1
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else
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MOZ_NEEDS_LIBATOMIC=
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fi
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AC_SUBST(MOZ_NEEDS_LIBATOMIC)
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fi
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if test -n "$CROSS_COMPILE"; then
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dnl When cross compile, we have no variable telling us what the host compiler is. Figure it out.
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cat > conftest.C <<EOF
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#if defined(__clang__)
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COMPILER CLANG __clang_major__.__clang_minor__.__clang_patchlevel__
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#elif defined(__GNUC__)
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COMPILER GCC __GNUC__.__GNUC_MINOR__.__GNUC_PATCHLEVEL__
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#endif
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EOF
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read dummy host_compiler HOST_CC_VERSION <<EOF
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$($HOST_CC -E conftest.C 2>/dev/null | grep COMPILER)
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EOF
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read dummy host_cxxcompiler HOST_CXX_VERSION <<EOF
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$($HOST_CXX -E conftest.C 2>/dev/null | grep COMPILER)
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EOF
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rm conftest.C
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if test "$host_compiler" != "$host_cxxcompiler"; then
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AC_MSG_ERROR([Your C and C++ host compilers are different. You need to use the same compiler.])
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fi
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if test "$HOST_CC_VERSION" != "$HOST_CXX_VERSION"; then
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# This may not be strictly necessary, but if we want to drop it,
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# we should make sure any version checks below apply to both the
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# C and C++ compiler versions.
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AC_MSG_ERROR([Your C and C++ host compiler versions are different. You need to use the same compiler version.])
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fi
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if test -n "$host_compiler"; then
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if test "$host_compiler" = "GCC" ; then
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changequote(<<,>>)
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HOST_GCC_VERSION_FULL="$HOST_CXX_VERSION"
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HOST_GCC_VERSION=`echo "$HOST_GCC_VERSION_FULL" | $PERL -pe '(split(/\./))[0]>=4&&s/(^\d*\.\d*).*/<<$>>1/;'`
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HOST_GCC_MAJOR_VERSION=`echo ${HOST_GCC_VERSION} | $AWK -F\. '{ print <<$>>1 }'`
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HOST_GCC_MINOR_VERSION=`echo ${HOST_GCC_VERSION} | $AWK -F\. '{ print <<$>>2 }'`
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changequote([,])
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if test "$HOST_GCC_MAJOR_VERSION" -eq 4 -a "$HOST_GCC_MINOR_VERSION" -lt 7 ||
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test "$HOST_GCC_MAJOR_VERSION" -lt 4; then
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AC_MSG_ERROR([Only GCC 4.7 or newer supported for host compiler])
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fi
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fi
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HOST_CXXFLAGS="$HOST_CXXFLAGS -std=gnu++0x"
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_SAVE_CXXFLAGS="$CXXFLAGS"
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_SAVE_CPPFLAGS="$CPPFLAGS"
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_SAVE_CXX="$CXX"
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CXXFLAGS="$HOST_CXXFLAGS"
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CPPFLAGS="$HOST_CPPFLAGS"
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CXX="$HOST_CXX"
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AC_CACHE_CHECK(for host gcc c++0x headers bug without rtti,
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ac_cv_host_cxx0x_headers_bug,
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[AC_TRY_COMPILE([#include <memory>], [],
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ac_cv_host_cxx0x_headers_bug="no",
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ac_cv_host_cxx0x_headers_bug="yes")])
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if test "$host_compiler" = CLANG -a "$ac_cv_host_cxx0x_headers_bug" = "yes"; then
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CXXFLAGS="$CXXFLAGS -I$_topsrcdir/build/unix/headers"
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AC_CACHE_CHECK(whether workaround for host gcc c++0x headers conflict with host clang works,
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ac_cv_host_cxx0x_clang_workaround,
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[AC_TRY_COMPILE([#include <memory>], [],
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ac_cv_host_cxx0x_clang_workaround="yes",
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ac_cv_host_cxx0x_clang_workaround="no")])
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if test "ac_cv_host_cxx0x_clang_workaround" = "no"; then
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AC_MSG_ERROR([Your host toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
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fi
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HOST_CXXFLAGS="$CXXFLAGS"
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elif test "$ac_cv_host_cxx0x_headers_bug" = "yes"; then
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AC_MSG_ERROR([Your host toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
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fi
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CXXFLAGS="$_SAVE_CXXFLAGS"
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CPPFLAGS="$_SAVE_CPPFLAGS"
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CXX="$_SAVE_CXX"
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fi
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elif test "$GNU_CXX"; then
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HOST_CXXFLAGS="$HOST_CXXFLAGS $_ADDED_CXXFLAGS"
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fi
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AC_LANG_C
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])
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