AC_ARG_WITH(cross-host,
[ --with-cross-host=HOST configuring with a cross compiler])
+ AC_ARG_WITH(newlib,
+ [ --with-newlib Configuring with newlib])
+
glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3
AC_SUBST(glibcpp_basedir)
# Find platform-specific directories containing configuration info. In
# addition to possibly modifying the same flags, it also sets up symlinks.
- GLIBCPP_CHECK_TARGET
+ GLIBCPP_CHECK_HOST
])
])
dnl
-dnl Check to see if the (unistd function) argument passed is
-dnl 1) declared when using the c++ compiler
-dnl 2) has "C" linkage
-dnl
-dnl argument 1 is name of function to check
-dnl
-dnl ASSUMES argument is a function with ONE parameter
-dnl
-dnl GLIBCPP_CHECK_UNISTD_DECL_AND_LINKAGE_1
-AC_DEFUN(GLIBCPP_CHECK_UNISTD_DECL_AND_LINKAGE_1, [
- AC_MSG_CHECKING([for $1 declaration])
- if test x${glibcpp_cv_func_$1_use+set} != xset; then
- AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
- AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <unistd.h>],
- [ $1(0);],
- [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
- AC_LANG_RESTORE
- ])
- fi
- AC_MSG_RESULT($glibcpp_cv_func_$1_use)
- if test x$glibcpp_cv_func_$1_use = x"yes"; then
- AC_CHECK_FUNCS($1)
- fi
-])
-
-dnl
dnl Because the builtins are picky picky picky about the arguments they take,
dnl do an explict linkage tests here.
dnl Check to see if the (math function) argument passed is
])
dnl
-dnl Check to see what the underlying c library is like
-dnl These checks need to do two things:
-dnl 1) make sure the name is declared when using the c++ compiler
-dnl 2) make sure the name has "C" linkage
-dnl This might seem like overkill but experience has shown that it's not...
-dnl
-dnl Define HAVE_ISATTY if "isatty" is declared and links
-dnl
-dnl GLIBCPP_CHECK_UNISTD_SUPPORT
-AC_DEFUN(GLIBCPP_CHECK_UNISTD_SUPPORT, [
- ac_test_CXXFLAGS="${CXXFLAGS+set}"
- ac_save_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
-
- GLIBCPP_CHECK_UNISTD_DECL_AND_LINKAGE_1(isatty)
-
- CXXFLAGS="$ac_save_CXXFLAGS"
-])
-
-dnl
dnl Check to see what the underlying c library or math library is like.
dnl These checks need to do two things:
dnl 1) make sure the name is declared when using the c++ compiler
dnl for. Also, if architecture- or OS-specific flags are required for
dnl compilation, pick them up here.
dnl
-dnl GLIBCPP_CHECK_TARGET
-AC_DEFUN(GLIBCPP_CHECK_TARGET, [
- . [$]{glibcpp_basedir}/configure.target
+dnl GLIBCPP_CHECK_HOST
+AC_DEFUN(GLIBCPP_CHECK_HOST, [
+ . [$]{glibcpp_basedir}/configure.host
AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
AC_MSG_RESULT(OS config directory is $os_include_dir)
])
CLOCALE_INTERNAL_H=config/locale/gnu/c++locale_internal.h
;;
xieee_1003.1-2001)
- AC_MSG_RESULT(generic)
+ AC_MSG_RESULT(IEEE 1003.1)
CLOCALE_H=config/locale/ieee_1003.1-2001/c_locale.h
CLOCALE_CC=config/locale/ieee_1003.1-2001/c_locale.cc
glibcpp_localedir=${glibcpp_builddir}/po/share/locale
AC_SUBST(glibcpp_localedir)
+ # A standalone libintl (e.g., GNU libintl) may be in use.
+ if test $USE_NLS = yes; then
+ AC_CHECK_HEADERS([libintl.h], [], USE_NLS=no)
+ AC_SEARCH_LIBS(gettext, intl, [], USE_NLS=no)
+ fi
+ if test $USE_NLS = yes; then
+ AC_DEFINE(_GLIBCPP_USE_NLS)
+ fi
+
AC_SUBST(USE_NLS)
AC_SUBST(CLOCALE_H)
AC_SUBST(CCODECVT_H)
dnl
+dnl Check to see if building and using a C++ precompiled header can be done.
+dnl
+dnl GLIBCPP_CHECK_PCH
+dnl
+dnl If it looks like it may work, flip bits on in include/Makefile.am
+dnl
+AC_DEFUN(GLIBCPP_CHECK_PCH, [
+ ac_test_CXXFLAGS="${CXXFLAGS+set}"
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS='-Werror -Winvalid-pch -Wno-deprecated -x c++-header'
+
+ AC_MSG_CHECKING([for compiler that seems to compile .gch files])
+ if test x${glibcpp_pch_comp+set} != xset; then
+ AC_CACHE_VAL(glibcpp_pch_comp, [
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE([#include <math.h>
+ ],
+ [ $1(0);],
+ [glibcpp_pch_comp=yes], [glibcpp_pch_comp=no])
+ AC_LANG_RESTORE
+ ])
+ fi
+ AC_MSG_RESULT([$glibcpp_pch_comp])
+
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AM_CONDITIONAL(GLIBCPP_BUILD_PCH, test "$glibcpp_pch_comp" = yes)
+ if test "$glibcpp_pch_comp" = yes; then
+ glibcpp_PCHFLAGS="-include bits/stdc++.h"
+ else
+ glibcpp_PCHFLAGS=""
+ fi
+ AC_SUBST(glibcpp_PCHFLAGS)
+])
+
+dnl
dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
dnl We must stage the required headers so that they will be installed
dnl with the library (unlike libgcc, the STL implementation is provided
OPTIMIZE_CXXFLAGS=
AC_SUBST(OPTIMIZE_CXXFLAGS)
- WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline'
+ WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings'
AC_SUBST(WARN_FLAGS)
])
if test -n "$with_cross_host" &&
test x"$with_cross_host" != x"no"; then
glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
- glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)'
+ glibcpp_toolexeclibdir='$(toolexecdir)/lib'
else
glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
- glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)'
+ glibcpp_toolexeclibdir='$(libdir)'
fi
+ multi_os_directory=`$CC -print-multi-os-directory`
+ case $multi_os_directory in
+ .) ;; # Avoid trailing /.
+ *) glibcpp_toolexeclibdir=$glibcpp_toolexeclibdir/$multi_os_directory ;;
+ esac
fi
AC_MSG_CHECKING([for install location])
baseline_file="${glibcpp_srcdir}/config/abi/${abi_baseline_triplet}/baseline_symbols.txt"
AC_SUBST(baseline_file)
+ case "$target" in
+ *-*-cygwin* ) enable_abi_check=no ;;
+ * ) enable_abi_check=yes ;;
+ esac
+
# Don't do ABI checking unless native.
AM_CONDITIONAL(GLIBCPP_BUILD_ABI_CHECK,
- test x"$build" = x"$host" && test -z "$with_cross_host")
+ test x"$build" = x"$host" && test -z "$with_cross_host" \
+ && test "$enable_abi_check" = yes )
])
AC_DEFUN([AC_PROG_LD])
])
+dnl
+dnl Check whether S_ISREG (Posix) or S_IFREG is available in <sys/stat.h>.
+dnl
+
+AC_DEFUN(GLIBCPP_CHECK_S_ISREG_OR_S_IFREG, [
+ AC_CACHE_VAL(glibcpp_cv_S_ISREG, [
+ AC_TRY_LINK([#include <sys/stat.h>],
+ [struct stat buffer; fstat(0, &buffer); S_ISREG(buffer.st_mode); ],
+ [glibcpp_cv_S_ISREG=yes],
+ [glibcpp_cv_S_ISREG=no])
+ ])
+ AC_CACHE_VAL(glibcpp_cv_S_IFREG, [
+ AC_TRY_LINK([#include <sys/stat.h>],
+ [struct stat buffer; fstat(0, &buffer); S_IFREG & buffer.st_mode; ],
+ [glibcpp_cv_S_IFREG=yes],
+ [glibcpp_cv_S_IFREG=no])
+ ])
+ if test x$glibcpp_cv_S_ISREG = xyes; then
+ AC_DEFINE(HAVE_S_ISREG)
+ elif test x$glibcpp_cv_S_IFREG = xyes; then
+ AC_DEFINE(HAVE_S_IFREG)
+ fi
+])
+
+dnl
+dnl Check whether poll is available in <poll.h>.
+dnl
+
+AC_DEFUN(GLIBCPP_CHECK_POLL, [
+ AC_CACHE_VAL(glibcpp_cv_POLL, [
+ AC_TRY_COMPILE([#include <poll.h>],
+ [struct pollfd pfd[1]; pfd[0].events = POLLIN; poll(pfd, 1, 0); ],
+ [glibcpp_cv_POLL=yes],
+ [glibcpp_cv_POLL=no])
+ ])
+ if test x$glibcpp_cv_POLL = xyes; then
+ AC_DEFINE(HAVE_POLL)
+ fi
+])
# Check whether LC_MESSAGES is available in <locale.h>.
# Ulrich Drepper <drepper@cygnus.com>, 1995.
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