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82 lines
2.5 KiB
Plaintext
82 lines
2.5 KiB
Plaintext
AC_CACHE_CHECK([for broken readdir],libreplace_cv_READDIR_NEEDED,[
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AC_TRY_RUN([
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#define test_readdir_os2_delete main
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#include "$libreplacedir/test/os2_delete.c"],
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[libreplace_cv_READDIR_NEEDED=no],
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[libreplace_cv_READDIR_NEEDED=yes],
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[libreplace_cv_READDIR_NEEDED="assuming not"])
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])
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AC_CHECK_FUNCS(dirfd)
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AC_HAVE_DECL(dirfd, [#include <dirent.h>])
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#
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# try to replace with getdirentries() if needed
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#
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if test x"$libreplace_cv_READDIR_NEEDED" = x"yes"; then
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AC_CHECK_FUNCS(getdirentries)
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AC_VERIFY_C_PROTOTYPE([long telldir(const DIR *dir)],
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[
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return 0;
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],[
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AC_DEFINE(TELLDIR_TAKES_CONST_DIR, 1, [Whether telldir takes a const pointer])
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],[],[
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#include <dirent.h>
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])
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AC_VERIFY_C_PROTOTYPE([int seekdir(DIR *dir, long ofs)],
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[
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return 0;
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],[
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AC_DEFINE(SEEKDIR_RETURNS_INT, 1, [Whether seekdir returns an int])
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],[],[
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#include <dirent.h>
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])
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AC_CACHE_CHECK([for replacing readdir using getdirentries()],libreplace_cv_READDIR_GETDIRENTRIES,[
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AC_TRY_RUN([
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#define _LIBREPLACE_REPLACE_H
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#include "$libreplacedir/repdir_getdirentries.c"
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#define test_readdir_os2_delete main
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#include "$libreplacedir/test/os2_delete.c"],
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[libreplace_cv_READDIR_GETDIRENTRIES=yes],
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[libreplace_cv_READDIR_GETDIRENTRIES=no])
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])
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fi
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if test x"$libreplace_cv_READDIR_GETDIRENTRIES" = x"yes"; then
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AC_DEFINE(REPLACE_READDIR,1,[replace readdir])
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AC_DEFINE(REPLACE_READDIR_GETDIRENTRIES,1,[replace readdir using getdirentries()])
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LIBREPLACEOBJ="${LIBREPLACEOBJ} $libreplacedir/repdir_getdirentries.o"
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libreplace_cv_READDIR_NEEDED=no
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fi
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#
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# try to replace with getdents() if needed
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#
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if test x"$libreplace_cv_READDIR_NEEDED" = x"yes"; then
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AC_CHECK_FUNCS(getdents)
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AC_CACHE_CHECK([for replacing readdir using getdents()],libreplace_cv_READDIR_GETDENTS,[
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AC_TRY_RUN([
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#define _LIBREPLACE_REPLACE_H
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#error _donot_use_getdents_replacement_anymore
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#include "$libreplacedir/repdir_getdents.c"
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#define test_readdir_os2_delete main
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#include "$libreplacedir/test/os2_delete.c"],
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[libreplace_cv_READDIR_GETDENTS=yes],
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[libreplace_cv_READDIR_GETDENTS=no])
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])
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fi
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if test x"$libreplace_cv_READDIR_GETDENTS" = x"yes"; then
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AC_DEFINE(REPLACE_READDIR,1,[replace readdir])
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AC_DEFINE(REPLACE_READDIR_GETDENTS,1,[replace readdir using getdents()])
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LIBREPLACEOBJ="${LIBREPLACEOBJ} $libreplacedir/repdir_getdents.o"
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libreplace_cv_READDIR_NEEDED=no
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fi
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AC_MSG_CHECKING([a usable readdir()])
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if test x"$libreplace_cv_READDIR_NEEDED" = x"yes"; then
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AC_MSG_RESULT(no)
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AC_MSG_WARN([the provided readdir() is broken])
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else
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AC_MSG_RESULT(yes)
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fi
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