mirror of
https://github.com/mozilla/gecko-dev.git
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b7a9931db3
It looks like overwriting AS here is not intentional. Before this patch, it is impossible to override AS through mozconfig for anything that runs past this stage in configure.
272 lines
9.0 KiB
Plaintext
272 lines
9.0 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" != "$cxxcompiler"; then
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AC_MSG_ERROR([Your C and C++ compilers are different. You need to use the same compiler.])
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fi
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CC_VERSION=`echo "$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 6 ||
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test "$GCC_MAJOR_VERSION" -lt 4; then
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AC_MSG_ERROR([Only GCC 4.6 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 "$ac_cv_cxx0x_headers_bug" = "yes"; then
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AC_MSG_ERROR([Your toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
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fi
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fi
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if test -n "$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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CLANG
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#elif defined(__GNUC__)
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GCC
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#endif
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EOF
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host_compiler=`$HOST_CXX -E conftest.C | egrep '(CLANG|GCC)'`
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rm conftest.C
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if test -n "$host_compiler"; then
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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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