2003-05-19 Paolo Carlini <pcarlini@unitus.it>

[pf3gnuchains/gcc-fork.git] / libstdc++-v3 / aclocal.m4

diff --git a/libstdc++-v3/aclocal.m4 b/libstdc++-v3/aclocal.m4
index 93c0e40..184a2cb 100644 (file)
--- a/libstdc++-v3/aclocal.m4
+++ b/libstdc++-v3/aclocal.m4
@@ -1275,7 +1275,7 @@ AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
       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
@@ -1302,6 +1302,15 @@ AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
   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)
@@ -1437,6 +1446,36 @@ AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
 
 
 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)
+])
+
+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
@@ -1851,7 +1890,7 @@ AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [
   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)
 ])
 
@@ -1932,7 +1971,11 @@ if test x"$glibcpp_toolexecdir" = x"no"; then
     glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
     glibcpp_toolexeclibdir='$(libdir)'
   fi
-  glibcpp_toolexeclibdir=$glibcpp_toolexeclibdir/`$CC -print-multi-os-directory`
+  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])
@@ -2114,6 +2157,45 @@ AC_DEFUN([AC_LIBTOOL_DLOPEN])
 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.