gettext.m4

一个扑克牌游戏集合的源码,包含了很多基本c-c++语言应用

      else
        gt_source="libc"
      fi
    else
      gt_source="included intl directory"
    fi
    AC_MSG_RESULT([$gt_source])
  fi

  if test "$USE_NLS" = "yes"; then

    if test "$gt_use_preinstalled_gnugettext" = "yes"; then
      if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
        AC_MSG_CHECKING([how to link with libintl])
        AC_MSG_RESULT([$LIBINTL])
        AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
      fi

      dnl For backward compatibility. Some packages may be using this.
      AC_DEFINE(HAVE_GETTEXT, 1,
       [Define if the GNU gettext() function is already present or preinstalled.])
      AC_DEFINE(HAVE_DCGETTEXT, 1,
       [Define if the GNU dcgettext() function is already present or preinstalled.])
    fi

    dnl We need to process the po/ directory.
    POSUB=po
  fi

  ifelse(gt_included_intl, yes, [
    dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
    dnl to 'yes' because some of the testsuite requires it.
    if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then
      BUILD_INCLUDED_LIBINTL=yes
    fi

    dnl Make all variables we use known to autoconf.
    AC_SUBST(BUILD_INCLUDED_LIBINTL)
    AC_SUBST(USE_INCLUDED_LIBINTL)
    AC_SUBST(CATOBJEXT)

    dnl For backward compatibility. Some configure.ins may be using this.
    nls_cv_header_intl=
    nls_cv_header_libgt=

    dnl For backward compatibility. Some Makefiles may be using this.
    DATADIRNAME=share
    AC_SUBST(DATADIRNAME)

    dnl For backward compatibility. Some Makefiles may be using this.
    INSTOBJEXT=.mo
    AC_SUBST(INSTOBJEXT)

    dnl For backward compatibility. Some Makefiles may be using this.
    GENCAT=gencat
    AC_SUBST(GENCAT)

    dnl For backward compatibility. Some Makefiles may be using this.
    INTLOBJS=
    if test "$USE_INCLUDED_LIBINTL" = yes; then
      INTLOBJS="\$(GETTOBJS)"
    fi
    AC_SUBST(INTLOBJS)

    dnl Enable libtool support if the surrounding package wishes it.
    INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
    AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
  ])

  dnl For backward compatibility. Some Makefiles may be using this.
  INTLLIBS="$LIBINTL"
  AC_SUBST(INTLLIBS)

  dnl Make all documented variables known to autoconf.
  AC_SUBST(LIBINTL)
  AC_SUBST(LTLIBINTL)
  AC_SUBST(POSUB)
])


dnl Checks for all prerequisites of the intl subdirectory,
dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
dnl            USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
AC_DEFUN([AM_INTL_SUBDIR],
[
  AC_REQUIRE([AC_PROG_INSTALL])dnl
  AC_REQUIRE([AM_MKINSTALLDIRS])dnl
  AC_REQUIRE([AC_PROG_CC])dnl
  AC_REQUIRE([AC_CANONICAL_HOST])dnl
  AC_REQUIRE([gt_GLIBC2])dnl
  AC_REQUIRE([AC_PROG_RANLIB])dnl
  AC_REQUIRE([AC_ISC_POSIX])dnl
  AC_REQUIRE([AC_HEADER_STDC])dnl
  AC_REQUIRE([AC_C_CONST])dnl
  AC_REQUIRE([bh_C_SIGNED])dnl
  AC_REQUIRE([AC_C_INLINE])dnl
  AC_REQUIRE([AC_TYPE_OFF_T])dnl
  AC_REQUIRE([AC_TYPE_SIZE_T])dnl
  AC_REQUIRE([gl_AC_TYPE_LONG_LONG])dnl
  AC_REQUIRE([gt_TYPE_LONGDOUBLE])dnl
  AC_REQUIRE([gt_TYPE_WCHAR_T])dnl
  AC_REQUIRE([gt_TYPE_WINT_T])dnl
  AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
  AC_REQUIRE([gl_AC_HEADER_STDINT_H])
  AC_REQUIRE([gt_TYPE_INTMAX_T])
  AC_REQUIRE([gt_PRINTF_POSIX])
  AC_REQUIRE([AC_FUNC_ALLOCA])dnl
  AC_REQUIRE([AC_FUNC_MMAP])dnl
  AC_REQUIRE([gl_GLIBC21])dnl
  AC_REQUIRE([gt_INTDIV0])dnl
  AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl
  AC_REQUIRE([gt_HEADER_INTTYPES_H])dnl
  AC_REQUIRE([gt_INTTYPES_PRI])dnl
  AC_REQUIRE([gl_XSIZE])dnl
  AC_REQUIRE([gt_INTL_MACOSX])dnl

  AC_CHECK_TYPE([ptrdiff_t], ,
    [AC_DEFINE([ptrdiff_t], [long],
       [Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
    ])
  AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \
stdlib.h string.h unistd.h sys/param.h])
  AC_CHECK_FUNCS([asprintf fwprintf getcwd getegid geteuid getgid getuid \
mempcpy munmap putenv setenv setlocale snprintf stpcpy strcasecmp strdup \
strtoul tsearch wcslen __argz_count __argz_stringify __argz_next \
__fsetlocking])

  dnl Use the _snprintf function only if it is declared (because on NetBSD it
  dnl is defined as a weak alias of snprintf; we prefer to use the latter).
  gt_CHECK_DECL(_snprintf, [#include <stdio.h>])
  gt_CHECK_DECL(_snwprintf, [#include <stdio.h>])

  dnl Use the *_unlocked functions only if they are declared.
  dnl (because some of them were defined without being declared in Solaris
  dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
  dnl on Solaris 2.5.1 to run on Solaris 2.6).
  dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
  gt_CHECK_DECL(feof_unlocked, [#include <stdio.h>])
  gt_CHECK_DECL(fgets_unlocked, [#include <stdio.h>])
  gt_CHECK_DECL(getc_unlocked, [#include <stdio.h>])

  case $gt_cv_func_printf_posix in
    *yes) HAVE_POSIX_PRINTF=1 ;;
    *) HAVE_POSIX_PRINTF=0 ;;
  esac
  AC_SUBST([HAVE_POSIX_PRINTF])
  if test "$ac_cv_func_asprintf" = yes; then
    HAVE_ASPRINTF=1
  else
    HAVE_ASPRINTF=0
  fi
  AC_SUBST([HAVE_ASPRINTF])
  if test "$ac_cv_func_snprintf" = yes; then
    HAVE_SNPRINTF=1
  else
    HAVE_SNPRINTF=0
  fi
  AC_SUBST([HAVE_SNPRINTF])
  if test "$ac_cv_func_wprintf" = yes; then
    HAVE_WPRINTF=1
  else
    HAVE_WPRINTF=0
  fi
  AC_SUBST([HAVE_WPRINTF])

  AM_ICONV
  AM_LANGINFO_CODESET
  if test $ac_cv_header_locale_h = yes; then
    gt_LC_MESSAGES
  fi

  if test -n "$INTL_MACOSX_LIBS"; then
    CPPFLAGS="$CPPFLAGS -I/System/Library/Frameworks/CoreFoundation.framework/Headers"
  fi

  dnl intl/plural.c is generated from intl/plural.y. It requires bison,
  dnl because plural.y uses bison specific features. It requires at least
  dnl bison-1.26 because earlier versions generate a plural.c that doesn't
  dnl compile.
  dnl bison is only needed for the maintainer (who touches plural.y). But in
  dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
  dnl the rule in general Makefile. Now, some people carelessly touch the
  dnl files or have a broken "make" program, hence the plural.c rule will
  dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
  dnl present or too old.
  AC_CHECK_PROGS([INTLBISON], [bison])
  if test -z "$INTLBISON"; then
    ac_verc_fail=yes
  else
    dnl Found it, now check the version.
    AC_MSG_CHECKING([version of bison])
changequote(<<,>>)dnl
    ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
    case $ac_prog_version in
      '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
      1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
changequote([,])dnl
         ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
      *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
    esac
    AC_MSG_RESULT([$ac_prog_version])
  fi
  if test $ac_verc_fail = yes; then
    INTLBISON=:
  fi
])


dnl Checks for special options needed on MacOS X.
dnl Defines INTL_MACOSX_LIBS.
AC_DEFUN([gt_INTL_MACOSX],
[
  dnl Check for API introduced in MacOS X 10.2.
  AC_CACHE_CHECK([for CFPreferencesCopyAppValue],
    gt_cv_func_CFPreferencesCopyAppValue,
    [gt_save_CPPFLAGS="$CPPFLAGS"
     CPPFLAGS="$CPPFLAGS -I/System/Library/Frameworks/CoreFoundation.framework/Headers"
     gt_save_LIBS="$LIBS"
     LIBS="$LIBS -framework CoreFoundation"
     AC_TRY_LINK([#include <CFPreferences.h>],
       [CFPreferencesCopyAppValue(NULL, NULL)],
       [gt_cv_func_CFPreferencesCopyAppValue=yes],
       [gt_cv_func_CFPreferencesCopyAppValue=no])
     CPPFLAGS="$gt_save_CPPFLAGS"
     LIBS="$gt_save_LIBS"])
  if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then
    AC_DEFINE([HAVE_CFPREFERENCESCOPYAPPVALUE], 1,
      [Define to 1 if you have the MacOS X function CFPreferencesCopyAppValue in the CoreFoundation framework.])
  fi
  dnl Check for API introduced in MacOS X 10.3.
  AC_CACHE_CHECK([for CFLocaleCopyCurrent], gt_cv_func_CFLocaleCopyCurrent,
    [gt_save_CPPFLAGS="$CPPFLAGS"
     CPPFLAGS="$CPPFLAGS -I/System/Library/Frameworks/CoreFoundation.framework/Headers"
     gt_save_LIBS="$LIBS"
     LIBS="$LIBS -framework CoreFoundation"
     AC_TRY_LINK([#include <CFLocale.h>], [CFLocaleCopyCurrent();],
       [gt_cv_func_CFLocaleCopyCurrent=yes],
       [gt_cv_func_CFLocaleCopyCurrent=no])
     CPPFLAGS="$gt_save_CPPFLAGS"
     LIBS="$gt_save_LIBS"])
  if test $gt_cv_func_CFLocaleCopyCurrent = yes; then
    AC_DEFINE([HAVE_CFLOCALECOPYCURRENT], 1,
      [Define to 1 if you have the MacOS X function CFLocaleCopyCurrent in the CoreFoundation framework.])
  fi
  INTL_MACOSX_LIBS=
  if test $gt_cv_func_CFPreferencesCopyAppValue = yes || test $gt_cv_func_CFLocaleCopyCurrent = yes; then
    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
  fi
  AC_SUBST([INTL_MACOSX_LIBS])
])


dnl gt_CHECK_DECL(FUNC, INCLUDES)
dnl Check whether a function is declared.
AC_DEFUN([gt_CHECK_DECL],
[
  AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1,
    [AC_TRY_COMPILE([$2], [
#ifndef $1
  char *p = (char *) $1;
#endif
], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
  if test $ac_cv_have_decl_$1 = yes; then
    gt_value=1
  else
    gt_value=0
  fi
  AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
    [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])
])


dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])