*) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;;
esac
+ # Set up safe default values for all subsequent AM_CONDITIONAL tests.
+ need_libmath=no
+ enable_wchar_t=no
+ #enable_debug=no
+ #glibcpp_pch_comp=no
+ #enable_cheaders=c
+ #c_compatibility=no
+ #enable_abi_check=no
+ #enable_symvers=no
+
# Find platform-specific directories containing configuration info. In
# addition to possibly modifying the same flags, it also sets up symlinks.
GLIBCPP_CHECK_HOST
dnl
dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [
- dnl Check for complex versions of math functions of platform.
+ dnl Check for complex versions of math functions of platform. This will
+ dnl always pass if libm is available, and fail if it isn't. If it is
+ dnl available, we assume we'll need it later, so add it to LIBS.
AC_CHECK_LIB(m, main)
AC_REPLACE_MATHFUNCS(nan copysignf)
need_libmath=yes
fi
AC_SUBST(LIBMATHOBJS)
- AM_CONDITIONAL(GLIBCPP_BUILD_LIBMATH, test "$need_libmath" = yes)
])
dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
dnl Wide characters disabled by default.
- enable_wchar_t=no
dnl Test wchar.h for mbstate_t, which is needed for char_traits and
dnl others even if wchar_t support is not on.
fi
AC_MSG_CHECKING([for enabled wchar_t specializations])
AC_MSG_RESULT($enable_wchar_t)
- AM_CONDITIONAL(GLIBCPP_TEST_WCHAR_T, test "$enable_wchar_t" = yes)
])
dnl
-dnl Check for which I/O library to use: libio, or something specific.
+dnl Check for which I/O library to use: stdio, or something specific.
dnl
dnl GLIBCPP_ENABLE_CSTDIO
-dnl --enable-cstdio=libio sets config/io/c_io_libio.h and friends
dnl
dnl default is stdio
dnl
dnl Check if a valid I/O package
case x${enable_cstdio_flag} in
- xlibio)
- CSTDIO_H=config/io/c_io_libio.h
- BASIC_FILE_H=config/io/basic_file_libio.h
- BASIC_FILE_CC=config/io/basic_file_libio.cc
- AC_MSG_RESULT(libio)
-
- # see if we are on a system with libio native (ie, linux)
- AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
-
- # Need to check and see what version of glibc is being used. If
- # it's not glibc-2.2 or higher, then we'll need to go ahead and
- # compile most of libio for linux systems.
- if test x$has_libio = x"yes"; then
- case "$target" in
- *-*-linux*)
- AC_MSG_CHECKING([for glibc version >= 2.2])
- AC_EGREP_CPP([ok], [
- #include <features.h>
- #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
- ok
- #endif
- ], glibc_satisfactory=yes, glibc_satisfactory=no)
- AC_MSG_RESULT($glibc_satisfactory)
- ;;
- esac
-
- # XXX at the moment, admit defeat and force the recompilation
- # XXX of glibc even on glibc-2.2 systems, because libio is not synched.
- glibc_satisfactory=no
-
- if test x$glibc_satisfactory = x"yes"; then
- need_libio=no
- need_wlibio=no
- else
- need_libio=yes
- # bkoz XXX need to add checks to enable this
- # pme XXX here's a first pass at such a check
- if test x$enable_c_mbchar != xno; then
- need_wlibio=yes
- else
- need_wlibio=no
- fi
- fi
-
- else
- # Using libio, but <libio.h> doesn't exist on the target system. . .
- need_libio=yes
- # bkoz XXX need to add checks to enable this
- # pme XXX here's a first pass at such a check
- if test x$enable_c_mbchar != xno; then
- need_wlibio=yes
- else
- need_wlibio=no
- fi
- fi
- ;;
xstdio | x | xno | xnone | xyes)
# default
CSTDIO_H=config/io/c_io_stdio.h
BASIC_FILE_H=config/io/basic_file_stdio.h
BASIC_FILE_CC=config/io/basic_file_stdio.cc
AC_MSG_RESULT(stdio)
-
- # We're not using stdio.
- need_libio=no
- need_wlibio=no
;;
*)
echo "$enable_cstdio is an unknown io package" 1>&2
AC_SUBST(CSTDIO_H)
AC_SUBST(BASIC_FILE_H)
AC_SUBST(BASIC_FILE_CC)
-
- # 2000-08-04 bkoz hack
- CCODECVT_C=config/io/c_io_libio_codecvt.c
- AC_SUBST(CCODECVT_C)
- # 2000-08-04 bkoz hack
-
- AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO,
- test "$need_libio" = yes || test "$need_wlibio" = yes)
- AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
- AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
- if test "$need_libio" = yes || test "$need_wlibio" = yes; then
- libio_la=../libio/libio.la
- else
- libio_la=
- fi
- AC_SUBST(libio_la)
])
CXXFLAGS="$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 TOPLEVEL_INCLUDES
dnl LIBMATH_INCLUDES
dnl LIBSUPCXX_INCLUDES
-dnl LIBIO_INCLUDES
dnl
dnl GLIBCPP_EXPORT_INCLUDES
AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
- if test x"$need_libio" = xyes; then
- LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio'
- AC_SUBST(LIBIO_INCLUDES)
- fi
-
# Now, export this to all the little Makefiles....
AC_SUBST(GLIBCPP_INCLUDES)
AC_SUBST(TOPLEVEL_INCLUDES)
dnl
dnl GLIBCPP_CONFIGURE_TESTSUITE [no args]
AC_DEFUN(GLIBCPP_CONFIGURE_TESTSUITE, [
- GLIBCPP_CHECK_SETRLIMIT
- # Look for setenv, so that extended locale tests can be performed.
- GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
+ if test x"$GLIBCPP_IS_CROSS_COMPILING" = xfalse; then
+ # Do checks for memory limit functions.
+ GLIBCPP_CHECK_SETRLIMIT
+
+ # Look for setenv, so that extended locale tests can be performed.
+ GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
+ fi
# Export file names for ABI checking.
- baseline_file="${glibcpp_srcdir}/config/abi/${abi_baseline_triplet}/baseline_symbols.txt"
- AC_SUBST(baseline_file)
+ baseline_dir="${glibcpp_srcdir}/config/abi/${abi_baseline_pair}\$(MULTISUBDIR)"
+ AC_SUBST(baseline_dir)
- case "$target" in
- *-*-cygwin* ) enable_abi_check=no ;;
- * ) enable_abi_check=yes ;;
- esac
+ # Determine if checking the ABI is desirable.
+ if test x$enable_symvers = xno; then
+ enable_abi_check=no
+ else
+ case "$host" in
+ *-*-cygwin*)
+ enable_abi_check=no ;;
+ *)
+ enable_abi_check=yes ;;
+ esac
+ fi
- # Don't do ABI checking unless native.
- AM_CONDITIONAL(GLIBCPP_BUILD_ABI_CHECK,
- test x"$build" = x"$host" && test -z "$with_cross_host" \
- && test "$enable_abi_check" = yes )
+ AM_CONDITIONAL(GLIBCPP_TEST_WCHAR_T, test "$enable_wchar_t" = yes)
+ AM_CONDITIONAL(GLIBCPP_TEST_ABI, test "$enable_abi_check" = yes)
])
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