dnl This Source Code Form is subject to the terms of the Mozilla Public dnl License, v. 2.0. If a copy of the MPL was not distributed with this dnl file, You can obtain one at http://mozilla.org/MPL/2.0/. dnl Several autoconf functions AC_REQUIRE AC_PROG_CPP/AC_PROG_CXXCPP dnl or AC_HEADER_STDC, meaning they are called even when we don't call dnl them explicitly. dnl However, theses checks are not necessary and python configure sets dnl the corresponding variables already, so just skip those tests dnl entirely. define([AC_PROG_CPP],[]) define([AC_PROG_CXXCPP],[]) define([AC_HEADER_STDC], []) AC_DEFUN([MOZ_TOOL_VARIABLES], [ GNU_AS= GNU_CC= GNU_CXX= if test "$CC_TYPE" = "gcc"; then GNU_CC=1 GNU_CXX=1 fi if test "`echo | $AS -o conftest.out -v 2>&1 | grep -c GNU`" != "0"; then GNU_AS=1 fi rm -f conftest.out CLANG_CC= CLANG_CXX= CLANG_CL= if test "$CC_TYPE" = "clang"; then GNU_CC=1 GNU_CXX=1 CLANG_CC=1 CLANG_CXX=1 fi if test "$CC_TYPE" = "clang-cl"; then CLANG_CL=1 fi if test "$GNU_CC"; then if `$CC -print-prog-name=ld` -v 2>&1 | grep -c GNU >/dev/null; then GCC_USE_GNU_LD=1 fi fi AC_SUBST(CLANG_CXX) AC_SUBST(CLANG_CL) ]) AC_DEFUN([MOZ_CROSS_COMPILER], [ echo "cross compiling from $host to $target" if test -z "$HOST_AR_FLAGS"; then HOST_AR_FLAGS="$AR_FLAGS" fi AC_CHECK_PROGS(HOST_RANLIB, $HOST_RANLIB ranlib, ranlib, :) AC_CHECK_PROGS(HOST_AR, $HOST_AR ar, ar, :) dnl AC_CHECK_PROGS manually goes through $PATH, and as such fails to handle dnl absolute or relative paths. Relative paths wouldn't work anyways, but dnl absolute paths would. Trick AC_CHECK_PROGS into working in that case by dnl adding / to PATH. This is temporary until this moves to moz.configure dnl (soon). _SAVE_PATH=$PATH case "${TOOLCHAIN_PREFIX}" in /*) PATH="/:$PATH" ;; esac AC_PROG_CC AC_PROG_CXX AC_CHECK_PROGS(RANLIB, "${TOOLCHAIN_PREFIX}ranlib", :) AC_CHECK_PROGS(AR, "${TOOLCHAIN_PREFIX}ar", :) AC_CHECK_PROGS(AS, "${TOOLCHAIN_PREFIX}as", :) AC_CHECK_PROGS(LIPO, "${TOOLCHAIN_PREFIX}lipo", :) AC_CHECK_PROGS(STRIP, "${TOOLCHAIN_PREFIX}strip", :) AC_CHECK_PROGS(WINDRES, "${TOOLCHAIN_PREFIX}windres", :) AC_CHECK_PROGS(OTOOL, "${TOOLCHAIN_PREFIX}otool", :) AC_CHECK_PROGS(INSTALL_NAME_TOOL, "${TOOLCHAIN_PREFIX}install_name_tool", :) AC_CHECK_PROGS(OBJCOPY, "${TOOLCHAIN_PREFIX}objcopy", :) PATH=$_SAVE_PATH ]) AC_DEFUN([MOZ_CXX11], [ dnl Updates to the test below should be duplicated further below for the dnl cross-compiling case. AC_LANG_CPLUSPLUS if test "$GNU_CXX"; then AC_CACHE_CHECK([whether 64-bits std::atomic requires -latomic], ac_cv_needs_atomic, AC_TRY_LINK( [#include #include ], [ std::atomic foo; foo = 1; ], ac_cv_needs_atomic=no, _SAVE_LIBS="$LIBS" LIBS="$LIBS -latomic" AC_TRY_LINK( [#include #include ], [ std::atomic foo; foo = 1; ], ac_cv_needs_atomic=yes, ac_cv_needs_atomic="do not know; assuming no") LIBS="$_SAVE_LIBS" ) ) if test "$ac_cv_needs_atomic" = yes; then MOZ_NEEDS_LIBATOMIC=1 else MOZ_NEEDS_LIBATOMIC= fi AC_SUBST(MOZ_NEEDS_LIBATOMIC) fi AC_LANG_C ])