# Initialization and sanity checks
# --------------------------------
-AC_PREREQ(2.59)
+AC_PREREQ(2.64)
AC_INIT
AC_CONFIG_SRCDIR(tree.c)
AC_CONFIG_HEADER(auto-host.h:config.in)
# Find the native compiler
AC_PROG_CC
AM_PROG_CC_C_O
+AC_PROG_CXX
ACX_PROG_GNAT([-I"$srcdir"/ada])
# autoconf is lame and doesn't give us any substitution variable for this.
# So, we only use -pedantic if we can disable those warnings.
ACX_PROG_CC_WARNING_OPTS(
- m4_quote(m4_do([-W -Wall -Wwrite-strings -Wstrict-prototypes ],
- [-Wmissing-prototypes -Wcast-qual])), [loose_warn])
+ m4_quote(m4_do([-W -Wall -Wwrite-strings -Wcast-qual])), [loose_warn])
ACX_PROG_CC_WARNING_OPTS(
- m4_quote(m4_do([-Wold-style-definition -Wc++-compat ],
- [-Wmissing-format-attribute])), [strict_warn])
+ m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])),
+ [c_loose_warn])
+ACX_PROG_CC_WARNING_OPTS(
+ m4_quote(m4_do([-Wmissing-format-attribute])), [strict_warn])
+ACX_PROG_CC_WARNING_OPTS(
+ m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn])
ACX_PROG_CC_WARNING_ALMOST_PEDANTIC(
m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ],
[-Wno-overlength-strings])), [strict_warn])
ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual], [strict_warn])
# The above macros do nothing if the compiler is not GCC. However, the
-# Makefile has more goo to add other flags, so this variabl is used to
-# enables warnings only for GCC.
+# Makefile has more goo to add other flags, so these variables are used
+# to enable warnings only for GCC.
warn_cflags=
+warn_cxxflags=
if test "x$GCC" = "xyes"; then
warn_cflags='$(GCC_WARN_CFLAGS)'
+ warn_cxxflags='$(GCC_WARN_CXXFLAGS)'
fi
AC_SUBST(warn_cflags)
+AC_SUBST(warn_cxxflags)
# Enable expensive internal checks
is_release=
# Miscenalleous configure options
# -------------------------------
+# See if we are building gcc with C++.
+AC_ARG_ENABLE(build-with-cxx,
+[ --enable-build-with-cxx build with C++ compiler instead of C compiler],
+ENABLE_BUILD_WITH_CXX=$enableval,
+ENABLE_BUILD_WITH_CXX=no)
+AC_SUBST(ENABLE_BUILD_WITH_CXX)
+
# With stabs
AC_ARG_WITH(stabs,
[ --with-stabs arrange to use stabs instead of host debug format],
esac],
[enable_languages=c])
-# Used by documentation targets
-AC_SUBST(datarootdir)
-AC_SUBST(docdir)
-AC_SUBST(htmldir)
-
AC_ARG_WITH(multilib-list,
[ --with-multilib-list Select multilibs (SH only)],
:,
[elf,2,16,0], [--fatal-warnings],
[.section .text,"axG",%progbits,.foo,comdat])
fi
-if test $in_tree_ld != yes && test x"$ld_vers" != x; then
+if test $in_tree_ld = yes ; then
+ comdat_group=no
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ comdat_group=yes
+ fi
+elif test x"$ld_vers" != x; then
comdat_group=yes
if test 0"$ld_date" -lt 20050308; then
if test -n "$ld_date"; then
[AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1,
[Define if your assembler supports .lcomm with an alignment field.])])
+AC_ARG_ENABLE(gnu-unique-object,
+ [ --enable-gnu-unique-object enable the use of the @gnu_unique_object ELF extension on
+ glibc systems],
+ [case $enable_gnu_unique_object in
+ yes | no) ;;
+ *) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object.
+Valid choices are 'yes' and 'no'.]) ;;
+ esac],
+ [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object,
+ [elf,2,19,52],,
+ [.type foo, @gnu_unique_object],
+# Also check for ld.so support, i.e. glibc 2.11 or higher.
+ [if test x$host = x$build -a x$host = x$target &&
+ glibcver=`ldd --version 2>/dev/null`; then
+ glibcmajor=`expr "$glibcver" : "ldd (GNU libc) \([[0-9]]*\)"`
+ glibcminor=`expr "$glibcver" : "ldd (GNU libc) [[0-9]]*\.\([[0-9]]*\)"`
+ glibcnum=`expr $glibcmajor \* 1000 + $glibcminor`
+ if test "$glibcnum" -ge 2011 ; then
+ gcc_cv_as_gnu_unique_object=yes
+ fi
+ fi],
+ [enable_gnu_unique_object=yes])])
+if test x$enable_gnu_unique_object = xyes; then
+ AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1,
+ [Define if your assembler supports @gnu_unique_object.])
+fi
+
AC_CACHE_CHECK([assembler for tolerance to line number 0],
[gcc_cv_as_line_zero],
[gcc_cv_as_line_zero=no
AC_SUBST(GGC)
echo "Using $GGC for garbage collection."
+# Libraries to use on the host. This will normally be set by the top
+# level Makefile. Here we simply capture the value for our Makefile.
+if test -z "${HOST_LIBS+set}"; then
+ HOST_LIBS=
+fi
+AC_SUBST(HOST_LIBS)
+
# Use the system's zlib library.
zlibdir=-L../zlib
zlibinc="-I\$(srcdir)/../zlib"
target_list="all.cross start.encap rest.encap tags \
install-common install-man install-info install-pdf dvi pdf \
html uninstall info man srcextra srcman srcinfo \
- mostlyclean clean distclean maintainer-clean"
+ mostlyclean clean distclean maintainer-clean install-plugin"
for t in $target_list
do
fi)
AC_SUBST(slibdir)
-AC_ARG_WITH(datarootdir,
-[ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]],
-datarootdir="\${prefix}/$with_datarootdir",
-datarootdir='$(prefix)/share')
-AC_SUBST(datarootdir)
-
-AC_ARG_WITH(docdir,
-[ --with-docdir=DIR Install documentation in DIR [[DATAROOTDIR]]],
-docdir="\${prefix}/$with_docdir",
-docdir='$(datarootdir)')
-AC_SUBST(docdir)
-
-AC_ARG_WITH(htmldir,
-[ --with-htmldir=DIR html documentation in in DIR [[DOCDIR]]],
-htmldir="\${prefix}/$with_htmldir",
-htmldir='$(docdir)')
-AC_SUBST(htmldir)
-
# Substitute configuration variables
AC_SUBST(subdirs)
AC_SUBST(srcdir)
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