dnl Autoconf configure script for GDB server.
-dnl Copyright (C) 2000-2015 Free Software Foundation, Inc.
+dnl Copyright (C) 2000-2017 Free Software Foundation, Inc.
dnl
dnl This file is part of GDB.
dnl
AC_ARG_PROGRAM
-AC_HEADER_STDC
+# We require a C++11 compiler. Check if one is available, and if
+# necessary, set CXX_DIALECT to some -std=xxx switch.
+AX_CXX_COMPILE_STDCXX(11, , mandatory)
-# See if we are building with C++, and substitute COMPILER.
-GDB_AC_BUILD_WITH_CXX
+AC_HEADER_STDC
# Set the 'development' global.
. $srcdir/../../bfd/development.sh
ZW_CREATE_DEPDIR
ZW_PROG_COMPILER_DEPENDENCIES([CC])
-# Check for the 'make' the user wants to use.
-AC_CHECK_PROGS(MAKE, make)
-MAKE_IS_GNU=
-case "`$MAKE --version 2>&1 | sed 1q`" in
- *GNU*)
- MAKE_IS_GNU=yes
- ;;
-esac
-AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
-AC_PROG_MAKE_SET
-
gnulib_extra_configure_args=
# If large-file support is disabled, make sure gnulib does the same.
if test "$enable_largefile" = no; then
fcntl.h signal.h sys/file.h dnl
sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
netinet/tcp.h arpa/inet.h)
+AC_FUNC_FORK
AC_CHECK_FUNCS(getauxval pread pwrite pread64 setns)
GDB_AC_COMMON
AC_SUBST(ustlibs)
AC_SUBST(ustinc)
-AC_ARG_ENABLE(werror,
- AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
- [case "${enableval}" in
- yes | y) ERROR_ON_WARNING="yes" ;;
- no | n) ERROR_ON_WARNING="no" ;;
- *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
- esac])
-
-# Enable -Werror by default when using gcc. Turn it off for releases.
-if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" \
- && test x"$enable_build_with_cxx" != x"yes" \
- && $development; then
- ERROR_ON_WARNING=yes
-fi
-
-WERROR_CFLAGS=""
-if test "${ERROR_ON_WARNING}" = yes ; then
- WERROR_CFLAGS="-Werror"
-fi
-
-build_warnings="-Wall -Wpointer-arith \
--Wformat-nonliteral -Wno-char-subscripts -Wempty-body"
-
-# Now add in C and C++ specific options, depending on mode.
-if test "$enable_build_with_cxx" = "yes"; then
- build_warnings="$build_warnings -Wno-sign-compare -Wno-write-strings \
--Wno-narrowing"
-else
- build_warnings="$build_warnings -Wdeclaration-after-statement"
-fi
-
-# The set of warnings supported by a C++ compiler is not the same as
-# of the C compiler.
-if test "$enable_build_with_cxx" = "yes"; then
- AC_LANG_PUSH([C++])
-fi
-
-WARN_CFLAGS=""
-if test "x$GCC" = xyes
-then
- AC_MSG_CHECKING(compiler warning flags)
- # Separate out the -Werror flag as some files just cannot be
- # compiled with it enabled.
- for w in ${build_warnings}; do
- case $w in
- -Werr*) WERROR_CFLAGS=-Werror ;;
- *)
- # Check whether GCC accepts it.
- saved_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS $w"
- saved_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS="$CXXFLAGS $w"
- AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
- CFLAGS="$saved_CFLAGS"
- CXXFLAGS="$saved_CXXFLAGS"
- esac
- done
- AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
-fi
-AC_SUBST(WARN_CFLAGS)
-AC_SUBST(WERROR_CFLAGS)
-
-if test "$enable_build_with_cxx" = "yes"; then
- AC_LANG_POP([C++])
-fi
+AM_GDB_WARNINGS
+dnl The codebase isn't clean yet with this flag.
+case " $WARN_CFLAGS " in
+*" -Wmissing-prototypes "*)
+ WARN_CFLAGS="$WARN_CFLAGS -Wno-missing-prototypes"
+ ;;
+esac
dnl dladdr is glibc-specific. It is used by thread-db.c but only for
dnl debugging messages. It lives in -ldl which is handled below so we don't
AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
+# See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
+# Older amd64 Linux's don't have the fs_base and gs_base members of
+# `struct user_regs_struct'.
+AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
+ [], [], [#include <sys/user.h>])
+
+
AC_CHECK_TYPES(socklen_t, [], [],
[#include <sys/types.h>
#include <sys/socket.h>
[gdb_cv_i386_is_x86_64=no])
CPPFLAGS="$save_CPPFLAGS"])
;;
+
+ x86_64-*-linux*)
+ AC_CACHE_CHECK([if building for x32], [gdb_cv_x86_is_x32],
+ [save_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $CFLAGS"
+ AC_EGREP_CPP([got it], [
+#if __x86_64__ && __ILP32__
+got it
+#endif
+ ], [gdb_cv_x86_is_x32=yes],
+ [gdb_cv_x86_is_x32=no])
+ CPPFLAGS="$save_CPPFLAGS"])
+ ;;
+
m68k-*-*)
AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
[save_CPPFLAGS="$CPPFLAGS"
fi
AC_SUBST(GNULIB_STDINT_H)
-AC_OUTPUT(Makefile,
+AC_CONFIG_FILES([Makefile],
[case x$CONFIG_HEADERS in
xconfig.h:config.in)
echo > stamp-h ;;
esac
])
+
+AC_OUTPUT