Mercurial > gnulib
changeset 32193:85dc755e86a7
Move gl_FCNTL_O_FLAGS to a separate .m4 file.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Fri, 25 Dec 2009 13:12:51 +0100 |
| parents | 1650a80d2e1a |
| children | 80fa2ffdd446 |
| files | ChangeLog m4/fcntl-o.m4 m4/fcntl_h.m4 modules/fcntl-h modules/localcharset |
| diffstat | 5 files changed, 92 insertions(+), 76 deletions(-) [+] |
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--- a/ChangeLog Fri Dec 25 11:49:24 2009 +0100 +++ b/ChangeLog Fri Dec 25 13:12:51 2009 +0100 @@ -1,3 +1,11 @@ +2009-12-25 Bruno Haible <bruno@clisp.org> + + Move gl_FCNTL_O_FLAGS to a separate .m4 file. + * m4/fcntl-o.m4: New file, extracted from m4/fcntl_h.m4. + * m4/fcntl_h.m4 (gl_FCNTL_O_FLAGS): Remove macro. + * modules/fcntl-h (Files): Add m4/fcntl-o.m4. + * modules/localcharset (Files): Likewise. Remove m4/fcntl_h.m4. + 2009-12-24 Bruno Haible <bruno@clisp.org> openat: Fix warning.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/m4/fcntl-o.m4 Fri Dec 25 13:12:51 2009 +0100 @@ -0,0 +1,81 @@ +# fcntl-o.m4 serial 1 +dnl Copyright (C) 2006, 2009 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Paul Eggert. + +# Test whether the flags O_NOATIME and O_NOFOLLOW actually work. +# Define HAVE_WORKING_O_NOATIME to 1 if O_NOATIME works, or to 0 otherwise. +# Define HAVE_WORKING_O_NOFOLLOW to 1 if O_NOFOLLOW works, or to 0 otherwise. +AC_DEFUN([gl_FCNTL_O_FLAGS], +[ + dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW. + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/types.h> + #include <sys/stat.h> + #include <unistd.h> + #include <fcntl.h> + #ifndef O_NOATIME + #define O_NOATIME 0 + #endif + #ifndef O_NOFOLLOW + #define O_NOFOLLOW 0 + #endif + static int const constants[] = + { + O_CREAT, O_EXCL, O_NOCTTY, O_TRUNC, O_APPEND, + O_NONBLOCK, O_SYNC, O_ACCMODE, O_RDONLY, O_RDWR, O_WRONLY + }; + ]], + [[ + int status = !constants; + { + static char const sym[] = "conftest.sym"; + if (symlink (".", sym) != 0 + || close (open (sym, O_RDONLY | O_NOFOLLOW)) == 0) + status |= 32; + unlink (sym); + } + { + static char const file[] = "confdefs.h"; + int fd = open (file, O_RDONLY | O_NOATIME); + char c; + struct stat st0, st1; + if (fd < 0 + || fstat (fd, &st0) != 0 + || sleep (1) != 0 + || read (fd, &c, 1) != 1 + || close (fd) != 0 + || stat (file, &st1) != 0 + || st0.st_atime != st1.st_atime) + status |= 64; + } + return status;]])], + [gl_cv_header_working_fcntl_h=yes], + [case $? in #( + 32) gl_cv_header_working_fcntl_h='no (bad O_NOFOLLOW)';; #( + 64) gl_cv_header_working_fcntl_h='no (bad O_NOATIME)';; #( + 96) gl_cv_header_working_fcntl_h='no (bad O_NOATIME, O_NOFOLLOW)';; #( + *) gl_cv_header_working_fcntl_h='no';; + esac], + [gl_cv_header_working_fcntl_h=cross-compiling])]) + + case $gl_cv_header_working_fcntl_h in #( + *O_NOATIME* | no | cross-compiling) ac_val=0;; #( + *) ac_val=1;; + esac + AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOATIME], [$ac_val], + [Define to 1 if O_NOATIME works.]) + + case $gl_cv_header_working_fcntl_h in #( + *O_NOFOLLOW* | no | cross-compiling) ac_val=0;; #( + *) ac_val=1;; + esac + AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOFOLLOW], [$ac_val], + [Define to 1 if O_NOFOLLOW works.]) +])
--- a/m4/fcntl_h.m4 Fri Dec 25 11:49:24 2009 +0100 +++ b/m4/fcntl_h.m4 Fri Dec 25 13:12:51 2009 +0100 @@ -1,4 +1,4 @@ -# serial 8 +# serial 9 # Configure fcntl.h. dnl Copyright (C) 2006, 2007, 2009 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation @@ -14,80 +14,6 @@ gl_CHECK_NEXT_HEADERS([fcntl.h]) ]) -# Test whether the flags O_NOATIME and O_NOFOLLOW actually work. -# Define HAVE_WORKING_O_NOATIME to 1 if O_NOATIME works, or to 0 otherwise. -# Define HAVE_WORKING_O_NOFOLLOW to 1 if O_NOFOLLOW works, or to 0 otherwise. -AC_DEFUN([gl_FCNTL_O_FLAGS], -[ - dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW. - AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) - AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h], - [AC_RUN_IFELSE( - [AC_LANG_PROGRAM( - [[#include <sys/types.h> - #include <sys/stat.h> - #include <unistd.h> - #include <fcntl.h> - #ifndef O_NOATIME - #define O_NOATIME 0 - #endif - #ifndef O_NOFOLLOW - #define O_NOFOLLOW 0 - #endif - static int const constants[] = - { - O_CREAT, O_EXCL, O_NOCTTY, O_TRUNC, O_APPEND, - O_NONBLOCK, O_SYNC, O_ACCMODE, O_RDONLY, O_RDWR, O_WRONLY - }; - ]], - [[ - int status = !constants; - { - static char const sym[] = "conftest.sym"; - if (symlink (".", sym) != 0 - || close (open (sym, O_RDONLY | O_NOFOLLOW)) == 0) - status |= 32; - unlink (sym); - } - { - static char const file[] = "confdefs.h"; - int fd = open (file, O_RDONLY | O_NOATIME); - char c; - struct stat st0, st1; - if (fd < 0 - || fstat (fd, &st0) != 0 - || sleep (1) != 0 - || read (fd, &c, 1) != 1 - || close (fd) != 0 - || stat (file, &st1) != 0 - || st0.st_atime != st1.st_atime) - status |= 64; - } - return status;]])], - [gl_cv_header_working_fcntl_h=yes], - [case $? in #( - 32) gl_cv_header_working_fcntl_h='no (bad O_NOFOLLOW)';; #( - 64) gl_cv_header_working_fcntl_h='no (bad O_NOATIME)';; #( - 96) gl_cv_header_working_fcntl_h='no (bad O_NOATIME, O_NOFOLLOW)';; #( - *) gl_cv_header_working_fcntl_h='no';; - esac], - [gl_cv_header_working_fcntl_h=cross-compiling])]) - - case $gl_cv_header_working_fcntl_h in #( - *O_NOATIME* | no | cross-compiling) ac_val=0;; #( - *) ac_val=1;; - esac - AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOATIME], [$ac_val], - [Define to 1 if O_NOATIME works.]) - - case $gl_cv_header_working_fcntl_h in #( - *O_NOFOLLOW* | no | cross-compiling) ac_val=0;; #( - *) ac_val=1;; - esac - AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOFOLLOW], [$ac_val], - [Define to 1 if O_NOFOLLOW works.]) -]) - AC_DEFUN([gl_FCNTL_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only.