1#
2# Contains some unsorted druntime utility macros.
3#
4
5
6# DRUNTIME_WERROR
7# ---------------
8# Check to see if -Werror is enabled.
9AC_DEFUN([DRUNTIME_WERROR],
10[
11  AC_ARG_ENABLE(werror, [AS_HELP_STRING([--enable-werror],
12                                        [turns on -Werror @<:@default=no@:>@])])
13  WERROR_FLAG=""
14  if test "x$enable_werror" = "xyes"; then
15      WERROR_FLAG="-Werror"
16  fi
17])
18
19
20# DRUNTIME_CONFIGURE
21# ------------------
22# Substitute absolute paths for srcdir and builddir.
23AC_DEFUN([DRUNTIME_CONFIGURE],
24[
25  # These need to be absolute paths, yet at the same time need to
26  # canonicalize only relative paths, because then amd will not unmount
27  # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
28  libphobos_builddir=`${PWDCMD-pwd}`
29  case $srcdir in
30    [\\/$]* | ?:[\\/]*) libphobos_srcdir=${srcdir} ;;
31    *) libphobos_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
32  esac
33  AC_SUBST(libphobos_builddir)
34  AC_SUBST(libphobos_srcdir)
35])
36
37# DRUNTIME_MULTILIB
38# -----------------
39# Prepare the multilib_arg variable
40AC_DEFUN([DRUNTIME_MULTILIB],
41[
42  if test ${multilib} = yes; then
43    multilib_arg="--enable-multilib"
44  else
45    multilib_arg=
46  fi
47])
48
49
50# DRUNTIME_INSTALL_DIRECTORIES
51# ----------------------------
52# Setup various install directories for headers.
53# Add the cross-host option and substitute the libphobos_toolexecdir
54# libphobos_toolexeclibdir and gdc_include_dir variables.
55AC_DEFUN([DRUNTIME_INSTALL_DIRECTORIES],
56[
57  AC_REQUIRE([AC_PROG_GDC])
58
59  AC_MSG_CHECKING([D GCC version])
60  gcc_version=`eval $get_gcc_base_ver $srcdir/../gcc/BASE-VER`
61  AC_MSG_RESULT($gcc_version)
62  AC_SUBST(gcc_version)
63
64  AC_ARG_WITH([cross-host],
65    AC_HELP_STRING([--with-cross-host=HOST],
66                   [configuring with a cross compiler]))
67
68  libphobos_toolexecdir=no
69  libphobos_toolexeclibdir=no
70
71  AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
72  AC_ARG_ENABLE([version-specific-runtime-libs],
73    AC_HELP_STRING([--enable-version-specific-runtime-libs],
74		   [Specify that runtime libraries should be installed in a compiler-specific directory]),
75    [case "$enableval" in
76      yes) version_specific_libs=yes ;;
77      no)  version_specific_libs=no ;;
78      *)   AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
79     esac],
80    [version_specific_libs=no])
81  AC_MSG_RESULT($version_specific_libs)
82
83  GCC_WITH_TOOLEXECLIBDIR
84
85  # Version-specific runtime libs processing.
86  if test $version_specific_libs = yes; then
87    libphobos_toolexecdir='${libdir}/gcc/${host_alias}'
88    libphobos_toolexeclibdir='${toolexecdir}/${gcc_version}$(MULTISUBDIR)'
89  else
90    # Calculate libphobos_toolexecdir, libphobos_toolexeclibdir
91    # Install a library built with a cross compiler in tooldir, not libdir.
92    if test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then
93      libphobos_toolexecdir='${exec_prefix}/${host_alias}'
94      case ${with_toolexeclibdir} in
95	no)
96	  libphobos_toolexeclibdir='${toolexecdir}/lib'
97	  ;;
98	*)
99	  libphobos_toolexeclibdir=${with_toolexeclibdir}
100	  ;;
101      esac
102    else
103      libphobos_toolexecdir='${libdir}/gcc/${host_alias}'
104      libphobos_toolexeclibdir='${libdir}'
105    fi
106    multi_os_directory=`$GDC -print-multi-os-directory`
107    case $multi_os_directory in
108      .) ;; # Avoid trailing /.
109      *) libphobos_toolexeclibdir=${libphobos_toolexeclibdir}/${multi_os_directory} ;;
110    esac
111  fi
112  AC_SUBST(libphobos_toolexecdir)
113  AC_SUBST(libphobos_toolexeclibdir)
114
115  # Default case for install directory for D sources files.
116  gdc_include_dir='$(libdir)/gcc/${target_alias}/${gcc_version}/include/d'
117  AC_SUBST(gdc_include_dir)
118])
119
120# DRUNTIME_SECTION_FLAGS
121# ----------------------
122# Check for -ffunction-sections nad -fdata-sections.
123AC_DEFUN([DRUNTIME_SECTION_FLAGS],
124[
125  WITH_LOCAL_DRUNTIME([
126    AC_LANG_PUSH([D])
127    GDCFLAGS="$GDCFLAGS -g -Werror -ffunction-sections -fdata-sections"
128    AC_TRY_COMPILE([int foo; void bar() { }],[return 0;],
129		   [ac_fdsections=yes], [ac_fdsections=no])
130    if test "x$ac_fdsections" = "xyes"; then
131      SECTION_FLAGS='-ffunction-sections -fdata-sections'
132    fi
133    AC_MSG_RESULT($ac_fdsections)
134    AC_LANG_POP([D])
135  ], [-nophoboslib])
136  AC_SUBST(SECTION_FLAGS)
137])
138