michael@0: dnl This Source Code Form is subject to the terms of the Mozilla Public
michael@0: dnl License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0: dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0: 
michael@0: AC_DEFUN([MOZ_TOOL_VARIABLES],
michael@0: [
michael@0: GNU_AS=
michael@0: GNU_LD=
michael@0: GNU_CC=
michael@0: GNU_CXX=
michael@0: CC_VERSION='N/A'
michael@0: CXX_VERSION='N/A'
michael@0: if test "$GCC" = "yes"; then
michael@0:     GNU_CC=1
michael@0:     CC_VERSION=`$CC -v 2>&1 | grep 'gcc version'`
michael@0: fi
michael@0: if test "$GXX" = "yes"; then
michael@0:     GNU_CXX=1
michael@0:     CXX_VERSION=`$CXX -v 2>&1 | grep 'gcc version'`
michael@0:     changequote(<<,>>)
michael@0:     GCC_VERSION_FULL=`echo "$CXX_VERSION" | $PERL -pe 's/^.*gcc version ([^ ]*).*/<<$>>1/'`
michael@0:     GCC_VERSION=`echo "$GCC_VERSION_FULL" | $PERL -pe '(split(/\./))[0]>=4&&s/(^\d*\.\d*).*/<<$>>1/;'`
michael@0: 
michael@0:     GCC_MAJOR_VERSION=`echo ${GCC_VERSION} | $AWK -F\. '{ print <<$>>1 }'`
michael@0:     GCC_MINOR_VERSION=`echo ${GCC_VERSION} | $AWK -F\. '{ print <<$>>2 }'`
michael@0:     changequote([,])
michael@0: fi
michael@0: 
michael@0: if test "`echo | $AS -o conftest.out -v 2>&1 | grep -c GNU`" != "0"; then
michael@0:     GNU_AS=1
michael@0: fi
michael@0: rm -f conftest.out
michael@0: if test "`echo | $LD -v 2>&1 | grep -c GNU`" != "0"; then
michael@0:     GNU_LD=1
michael@0: fi
michael@0: if test "$GNU_CC"; then
michael@0:     if `$CC -print-prog-name=ld` -v 2>&1 | grep -c GNU >/dev/null; then
michael@0:         GCC_USE_GNU_LD=1
michael@0:     fi
michael@0: fi
michael@0: 
michael@0: INTEL_CC=
michael@0: INTEL_CXX=
michael@0: if test "$GCC" = yes; then
michael@0:    if test "`$CC -help 2>&1 | grep -c 'Intel(R) C++ Compiler'`" != "0"; then
michael@0:      INTEL_CC=1
michael@0:    fi
michael@0: fi
michael@0: 
michael@0: if test "$GXX" = yes; then
michael@0:    if test "`$CXX -help 2>&1 | grep -c 'Intel(R) C++ Compiler'`" != "0"; then
michael@0:      INTEL_CXX=1
michael@0:    fi
michael@0: fi
michael@0: 
michael@0: CLANG_CC=
michael@0: CLANG_CXX=
michael@0: if test "`$CC -v 2>&1 | egrep -c '(clang version|Apple.*clang)'`" != "0"; then
michael@0:    CLANG_CC=1
michael@0: fi
michael@0: 
michael@0: if test "`$CXX -v 2>&1 | egrep -c '(clang version|Apple.*clang)'`" != "0"; then
michael@0:    CLANG_CXX=1
michael@0: fi
michael@0: AC_SUBST(CLANG_CXX)
michael@0: ])
michael@0: 
michael@0: AC_DEFUN([MOZ_CROSS_COMPILER],
michael@0: [
michael@0: echo "cross compiling from $host to $target"
michael@0: 
michael@0: _SAVE_CC="$CC"
michael@0: _SAVE_CFLAGS="$CFLAGS"
michael@0: _SAVE_LDFLAGS="$LDFLAGS"
michael@0: 
michael@0: AC_MSG_CHECKING([for host c compiler])
michael@0: AC_CHECK_PROGS(HOST_CC, cc gcc clang cl, "")
michael@0: if test -z "$HOST_CC"; then
michael@0:     AC_MSG_ERROR([no acceptable c compiler found in \$PATH])
michael@0: fi
michael@0: AC_MSG_RESULT([$HOST_CC])
michael@0: AC_MSG_CHECKING([for host c++ compiler])
michael@0: AC_CHECK_PROGS(HOST_CXX, c++ g++ clang++ cl, "")
michael@0: if test -z "$HOST_CXX"; then
michael@0:     AC_MSG_ERROR([no acceptable c++ compiler found in \$PATH])
michael@0: fi
michael@0: AC_MSG_RESULT([$HOST_CXX])
michael@0: 
michael@0: if test -z "$HOST_CFLAGS"; then
michael@0:     HOST_CFLAGS="$CFLAGS"
michael@0: fi
michael@0: if test -z "$HOST_CXXFLAGS"; then
michael@0:     HOST_CXXFLAGS="$CXXFLAGS"
michael@0: fi
michael@0: if test -z "$HOST_LDFLAGS"; then
michael@0:     HOST_LDFLAGS="$LDFLAGS"
michael@0: fi
michael@0: if test -z "$HOST_AR_FLAGS"; then
michael@0:     HOST_AR_FLAGS="$AR_FLAGS"
michael@0: fi
michael@0: AC_CHECK_PROGS(HOST_RANLIB, $HOST_RANLIB ranlib, ranlib, :)
michael@0: AC_CHECK_PROGS(HOST_AR, $HOST_AR ar, ar, :)
michael@0: CC="$HOST_CC"
michael@0: CFLAGS="$HOST_CFLAGS"
michael@0: LDFLAGS="$HOST_LDFLAGS"
michael@0: 
michael@0: AC_MSG_CHECKING([whether the host c compiler ($HOST_CC $HOST_CFLAGS $HOST_LDFLAGS) works])
michael@0: AC_TRY_COMPILE([], [return(0);],
michael@0:     [ac_cv_prog_hostcc_works=1 AC_MSG_RESULT([yes])],
michael@0:     AC_MSG_ERROR([installation or configuration problem: host compiler $HOST_CC cannot create executables.]) )
michael@0: 
michael@0: CC="$HOST_CXX"
michael@0: CFLAGS="$HOST_CXXFLAGS"
michael@0: AC_MSG_CHECKING([whether the host c++ compiler ($HOST_CXX $HOST_CXXFLAGS $HOST_LDFLAGS) works])
michael@0: AC_TRY_COMPILE([], [return(0);],
michael@0:     [ac_cv_prog_hostcxx_works=1 AC_MSG_RESULT([yes])],
michael@0:     AC_MSG_ERROR([installation or configuration problem: host compiler $HOST_CXX cannot create executables.]) )
michael@0: 
michael@0: CC=$_SAVE_CC
michael@0: CFLAGS=$_SAVE_CFLAGS
michael@0: LDFLAGS=$_SAVE_LDFLAGS
michael@0: 
michael@0: AC_CHECK_PROGS(CC, "${target_alias}-gcc" "${target}-gcc", :)
michael@0: unset ac_cv_prog_CC
michael@0: AC_PROG_CC
michael@0: AC_CHECK_PROGS(CXX, "${target_alias}-g++" "${target}-g++", :)
michael@0: unset ac_cv_prog_CXX
michael@0: AC_PROG_CXX
michael@0: 
michael@0: AC_CHECK_PROGS(RANLIB, "${target_alias}-ranlib" "${target}-ranlib", :)
michael@0: AC_CHECK_PROGS(AR, "${target_alias}-ar" "${target}-ar", :)
michael@0: MOZ_PATH_PROGS(AS, "${target_alias}-as" "${target}-as", :)
michael@0: AC_CHECK_PROGS(LD, "${target_alias}-ld" "${target}-ld", :)
michael@0: AC_CHECK_PROGS(STRIP, "${target_alias}-strip" "${target}-strip", :)
michael@0: AC_CHECK_PROGS(WINDRES, "${target_alias}-windres" "${target}-windres", :)
michael@0: AC_DEFINE(CROSS_COMPILE)
michael@0: CROSS_COMPILE=1
michael@0: 
michael@0: dnl If we cross compile for ppc on Mac OS X x86, cross_compiling will
michael@0: dnl dnl have erroneously been set to "no", because the x86 build host is
michael@0: dnl dnl able to run ppc code in a translated environment, making a cross
michael@0: dnl dnl compiler appear native.  So we override that here.
michael@0: cross_compiling=yes
michael@0: ])
michael@0: 
michael@0: AC_DEFUN([MOZ_CXX11],
michael@0: [
michael@0: dnl Check whether gcc's c++0x mode works
michael@0: dnl Updates to the test below should be duplicated further below for the
michael@0: dnl cross-compiling case.
michael@0: AC_LANG_CPLUSPLUS
michael@0: if test "$GNU_CXX"; then
michael@0:     CXXFLAGS="$CXXFLAGS -std=gnu++0x"
michael@0:     _ADDED_CXXFLAGS="-std=gnu++0x"
michael@0: 
michael@0:     AC_CACHE_CHECK(for gcc c++0x headers bug without rtti,
michael@0:         ac_cv_cxx0x_headers_bug,
michael@0:         [AC_TRY_COMPILE([#include <memory>], [],
michael@0:                         ac_cv_cxx0x_headers_bug="no",
michael@0:                         ac_cv_cxx0x_headers_bug="yes")])
michael@0: 
michael@0:     if test "$CLANG_CXX" -a "$ac_cv_cxx0x_headers_bug" = "yes"; then
michael@0:         CXXFLAGS="$CXXFLAGS -I$_topsrcdir/build/unix/headers"
michael@0:         _ADDED_CXXFLAGS="$_ADDED_CXXFLAGS -I$_topsrcdir/build/unix/headers"
michael@0:         AC_CACHE_CHECK(whether workaround for gcc c++0x headers conflict with clang works,
michael@0:             ac_cv_cxx0x_clang_workaround,
michael@0:             [AC_TRY_COMPILE([#include <memory>], [],
michael@0:                             ac_cv_cxx0x_clang_workaround="yes",
michael@0:                             ac_cv_cxx0x_clang_workaround="no")])
michael@0: 
michael@0:         if test "ac_cv_cxx0x_clang_workaround" = "no"; then
michael@0:             AC_MSG_ERROR([Your toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
michael@0:         fi
michael@0:     elif test "$ac_cv_cxx0x_headers_bug" = "yes"; then
michael@0:         AC_MSG_ERROR([Your toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
michael@0:     fi
michael@0: fi
michael@0: if test -n "$CROSS_COMPILE"; then
michael@0:     dnl When cross compile, we have no variable telling us what the host compiler is. Figure it out.
michael@0:     cat > conftest.C <<EOF
michael@0: #if defined(__clang__)
michael@0: CLANG
michael@0: #elif defined(__GNUC__)
michael@0: GCC
michael@0: #endif
michael@0: EOF
michael@0:     host_compiler=`$HOST_CXX -E conftest.C | egrep '(CLANG|GCC)'`
michael@0:     rm conftest.C
michael@0:     if test -n "$host_compiler"; then
michael@0:         HOST_CXXFLAGS="$HOST_CXXFLAGS -std=gnu++0x"
michael@0: 
michael@0:         _SAVE_CXXFLAGS="$CXXFLAGS"
michael@0:         _SAVE_CPPFLAGS="$CPPFLAGS"
michael@0:         _SAVE_CXX="$CXX"
michael@0:         CXXFLAGS="$HOST_CXXFLAGS"
michael@0:         CPPFLAGS="$HOST_CPPFLAGS"
michael@0:         CXX="$HOST_CXX"
michael@0:         AC_CACHE_CHECK(for host gcc c++0x headers bug without rtti,
michael@0:             ac_cv_host_cxx0x_headers_bug,
michael@0:             [AC_TRY_COMPILE([#include <memory>], [],
michael@0:                             ac_cv_host_cxx0x_headers_bug="no",
michael@0:                             ac_cv_host_cxx0x_headers_bug="yes")])
michael@0: 
michael@0:         if test "$host_compiler" = CLANG -a "$ac_cv_host_cxx0x_headers_bug" = "yes"; then
michael@0:             CXXFLAGS="$CXXFLAGS -I$_topsrcdir/build/unix/headers"
michael@0:             AC_CACHE_CHECK(whether workaround for host gcc c++0x headers conflict with host clang works,
michael@0:                 ac_cv_host_cxx0x_clang_workaround,
michael@0:                 [AC_TRY_COMPILE([#include <memory>], [],
michael@0:                                 ac_cv_host_cxx0x_clang_workaround="yes",
michael@0:                                 ac_cv_host_cxx0x_clang_workaround="no")])
michael@0: 
michael@0:             if test "ac_cv_host_cxx0x_clang_workaround" = "no"; then
michael@0:                 AC_MSG_ERROR([Your host toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
michael@0:             fi
michael@0:             HOST_CXXFLAGS="$CXXFLAGS"
michael@0:         elif test "$ac_cv_host_cxx0x_headers_bug" = "yes"; then
michael@0:             AC_MSG_ERROR([Your host toolchain does not support C++0x/C++11 mode properly. Please upgrade your toolchain])
michael@0:         fi
michael@0:         CXXFLAGS="$_SAVE_CXXFLAGS"
michael@0:         CPPFLAGS="$_SAVE_CPPFLAGS"
michael@0:         CXX="$_SAVE_CXX"
michael@0:     fi
michael@0: elif test "$GNU_CXX"; then
michael@0:     HOST_CXXFLAGS="$HOST_CXXFLAGS $_ADDED_CXXFLAGS"
michael@0: fi
michael@0: AC_LANG_C
michael@0: ])