diff options
Diffstat (limited to 'libstdc++-v3/acinclude.m4')
| -rw-r--r-- | libstdc++-v3/acinclude.m4 | 303 |
1 files changed, 177 insertions, 126 deletions
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4 index 4f37b6a..6c855b6 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -4309,143 +4309,194 @@ AC_DEFUN([GLIBCXX_ENABLE_FILESYSTEM_TS], [ ]) dnl -dnl Check whether the library calls required by the Filesystem TS are present -dnl and define _GLIBCXX_USE_REALPATH and _GLIBCXX_USE_UTIMENSAT. +dnl Check whether the library calls required by the Filesystem TS are present. +dnl Defines: +dnl HAVE_STRUCT_DIRENT_D_TYPE +dnl _GLIBCXX_USE_REALPATH +dnl _GLIBCXX_USE_UTIMENSAT +dnl _GLIBCXX_USE_ST_MTIM +dnl _GLIBCXX_USE_FCHMOD +dnl _GLIBCXX_USE_FCHMODAT +dnl _GLIBCXX_USE_SENDFILE +dnl HAVE_LINK +dnl HAVE_READLINK +dnl HAVE_SYMLINK dnl AC_DEFUN([GLIBCXX_CHECK_FILESYSTEM_DEPS], [dnl dnl - AC_LANG_SAVE - AC_LANG_CPLUSPLUS - ac_save_CXXFLAGS="$CXXFLAGS" - CXXFLAGS="$CXXFLAGS -fno-exceptions" + if test $enable_libstdcxx_filesystem_ts = yes; then + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + ac_save_CXXFLAGS="$CXXFLAGS" + CXXFLAGS="$CXXFLAGS -fno-exceptions" dnl - AC_MSG_CHECKING([for struct dirent.d_type]) - AC_CACHE_VAL(glibcxx_cv_dirent_d_type, [dnl - GCC_TRY_COMPILE_OR_LINK( - [#include <dirent.h>], - [ - struct dirent d; - if (sizeof d.d_type) return 0; - ], - [glibcxx_cv_dirent_d_type=yes], - [glibcxx_cv_dirent_d_type=no]) - ]) - if test $glibcxx_cv_dirent_d_type = yes; then - AC_DEFINE(HAVE_STRUCT_DIRENT_D_TYPE, 1, [Define to 1 if `d_type' is a member of `struct dirent'.]) - fi - AC_MSG_RESULT($glibcxx_cv_dirent_d_type) + AC_MSG_CHECKING([for struct dirent.d_type]) + AC_CACHE_VAL(glibcxx_cv_dirent_d_type, [dnl + GCC_TRY_COMPILE_OR_LINK( + [#include <dirent.h>], + [ + struct dirent d; + if (sizeof d.d_type) return 0; + ], + [glibcxx_cv_dirent_d_type=yes], + [glibcxx_cv_dirent_d_type=no]) + ]) + if test $glibcxx_cv_dirent_d_type = yes; then + AC_DEFINE(HAVE_STRUCT_DIRENT_D_TYPE, 1, [Define to 1 if `d_type' is a member of `struct dirent'.]) + fi + AC_MSG_RESULT($glibcxx_cv_dirent_d_type) dnl - AC_MSG_CHECKING([for realpath]) - AC_CACHE_VAL(glibcxx_cv_realpath, [dnl - GCC_TRY_COMPILE_OR_LINK( - [ - #include <limits.h> - #include <stdlib.h> - #include <unistd.h> - ], - [ - #if _XOPEN_VERSION < 500 - #error - #elif _XOPEN_VERSION >= 700 || defined(PATH_MAX) - char *tmp = realpath((const char*)NULL, (char*)NULL); - #else - #error - #endif - ], - [glibcxx_cv_realpath=yes], - [glibcxx_cv_realpath=no]) - ]) - if test $glibcxx_cv_realpath = yes; then - AC_DEFINE(_GLIBCXX_USE_REALPATH, 1, [Define if usable realpath is available in <stdlib.h>.]) - fi - AC_MSG_RESULT($glibcxx_cv_realpath) + AC_MSG_CHECKING([for realpath]) + AC_CACHE_VAL(glibcxx_cv_realpath, [dnl + GCC_TRY_COMPILE_OR_LINK( + [ + #include <limits.h> + #include <stdlib.h> + #include <unistd.h> + ], + [ + #if _XOPEN_VERSION < 500 + #error + #elif _XOPEN_VERSION >= 700 || defined(PATH_MAX) + char *tmp = realpath((const char*)NULL, (char*)NULL); + #else + #error + #endif + ], + [glibcxx_cv_realpath=yes], + [glibcxx_cv_realpath=no]) + ]) + if test $glibcxx_cv_realpath = yes; then + AC_DEFINE(_GLIBCXX_USE_REALPATH, 1, [Define if usable realpath is available in <stdlib.h>.]) + fi + AC_MSG_RESULT($glibcxx_cv_realpath) dnl - AC_MSG_CHECKING([for utimensat]) - AC_CACHE_VAL(glibcxx_cv_utimensat, [dnl - GCC_TRY_COMPILE_OR_LINK( - [ - #include <fcntl.h> - #include <sys/stat.h> - ], - [ - struct timespec ts[2] = { { 0, UTIME_OMIT }, { 1, 1 } }; - int i = utimensat(AT_FDCWD, "path", ts, 0); - ], - [glibcxx_cv_utimensat=yes], - [glibcxx_cv_utimensat=no]) - ]) - if test $glibcxx_cv_utimensat = yes; then - AC_DEFINE(_GLIBCXX_USE_UTIMENSAT, 1, [Define if utimensat and UTIME_OMIT are available in <sys/stat.h> and AT_FDCWD in <fcntl.h>.]) - fi - AC_MSG_RESULT($glibcxx_cv_utimensat) + AC_MSG_CHECKING([for utimensat]) + AC_CACHE_VAL(glibcxx_cv_utimensat, [dnl + GCC_TRY_COMPILE_OR_LINK( + [ + #include <fcntl.h> + #include <sys/stat.h> + ], + [ + struct timespec ts[2] = { { 0, UTIME_OMIT }, { 1, 1 } }; + int i = utimensat(AT_FDCWD, "path", ts, 0); + ], + [glibcxx_cv_utimensat=yes], + [glibcxx_cv_utimensat=no]) + ]) + if test $glibcxx_cv_utimensat = yes; then + AC_DEFINE(_GLIBCXX_USE_UTIMENSAT, 1, [Define if utimensat and UTIME_OMIT are available in <sys/stat.h> and AT_FDCWD in <fcntl.h>.]) + fi + AC_MSG_RESULT($glibcxx_cv_utimensat) dnl - AC_MSG_CHECKING([for struct stat.st_mtim.tv_nsec]) - AC_CACHE_VAL(glibcxx_cv_st_mtim, [dnl - GCC_TRY_COMPILE_OR_LINK( - [ #include <sys/stat.h> ], - [ - struct stat st; - return st.st_mtim.tv_nsec; - ], - [glibcxx_cv_st_mtim=yes], - [glibcxx_cv_st_mtim=no]) - ]) - if test $glibcxx_cv_st_mtim = yes; then - AC_DEFINE(_GLIBCXX_USE_ST_MTIM, 1, [Define if struct stat has timespec members.]) - fi - AC_MSG_RESULT($glibcxx_cv_st_mtim) + AC_MSG_CHECKING([for struct stat.st_mtim.tv_nsec]) + AC_CACHE_VAL(glibcxx_cv_st_mtim, [dnl + GCC_TRY_COMPILE_OR_LINK( + [ #include <sys/stat.h> ], + [ + struct stat st; + return st.st_mtim.tv_nsec; + ], + [glibcxx_cv_st_mtim=yes], + [glibcxx_cv_st_mtim=no]) + ]) + if test $glibcxx_cv_st_mtim = yes; then + AC_DEFINE(_GLIBCXX_USE_ST_MTIM, 1, [Define if struct stat has timespec members.]) + fi + AC_MSG_RESULT($glibcxx_cv_st_mtim) dnl - AC_MSG_CHECKING([for fchmod]) - AC_CACHE_VAL(glibcxx_cv_fchmod, [dnl - GCC_TRY_COMPILE_OR_LINK( - [#include <sys/stat.h>], - [fchmod(1, S_IWUSR);], - [glibcxx_cv_fchmod=yes], - [glibcxx_cv_fchmod=no]) - ]) - if test $glibcxx_cv_fchmod = yes; then - AC_DEFINE(_GLIBCXX_USE_FCHMOD, 1, [Define if fchmod is available in <sys/stat.h>.]) - fi - AC_MSG_RESULT($glibcxx_cv_fchmod) + AC_MSG_CHECKING([for fchmod]) + AC_CACHE_VAL(glibcxx_cv_fchmod, [dnl + GCC_TRY_COMPILE_OR_LINK( + [#include <sys/stat.h>], + [fchmod(1, S_IWUSR);], + [glibcxx_cv_fchmod=yes], + [glibcxx_cv_fchmod=no]) + ]) + if test $glibcxx_cv_fchmod = yes; then + AC_DEFINE(_GLIBCXX_USE_FCHMOD, 1, [Define if fchmod is available in <sys/stat.h>.]) + fi + AC_MSG_RESULT($glibcxx_cv_fchmod) dnl - AC_MSG_CHECKING([for fchmodat]) - AC_CACHE_VAL(glibcxx_cv_fchmodat, [dnl - GCC_TRY_COMPILE_OR_LINK( - [ - #include <fcntl.h> - #include <sys/stat.h> - ], - [fchmodat(AT_FDCWD, "", 0, AT_SYMLINK_NOFOLLOW);], - [glibcxx_cv_fchmodat=yes], - [glibcxx_cv_fchmodat=no]) - ]) - if test $glibcxx_cv_fchmodat = yes; then - AC_DEFINE(_GLIBCXX_USE_FCHMODAT, 1, [Define if fchmodat is available in <sys/stat.h>.]) - fi - AC_MSG_RESULT($glibcxx_cv_fchmodat) + AC_MSG_CHECKING([for fchmodat]) + AC_CACHE_VAL(glibcxx_cv_fchmodat, [dnl + GCC_TRY_COMPILE_OR_LINK( + [ + #include <fcntl.h> + #include <sys/stat.h> + ], + [fchmodat(AT_FDCWD, "", 0, AT_SYMLINK_NOFOLLOW);], + [glibcxx_cv_fchmodat=yes], + [glibcxx_cv_fchmodat=no]) + ]) + if test $glibcxx_cv_fchmodat = yes; then + AC_DEFINE(_GLIBCXX_USE_FCHMODAT, 1, [Define if fchmodat is available in <sys/stat.h>.]) + fi + AC_MSG_RESULT($glibcxx_cv_fchmodat) +dnl + AC_MSG_CHECKING([for sendfile that can copy files]) + AC_CACHE_VAL(glibcxx_cv_sendfile, [dnl + case "${target_os}" in + gnu* | linux* | solaris*) + GCC_TRY_COMPILE_OR_LINK( + [#include <sys/sendfile.h>], + [sendfile(1, 2, (off_t*)0, sizeof 1);], + [glibcxx_cv_sendfile=yes], + [glibcxx_cv_sendfile=no]) + ;; + *) + glibcxx_cv_sendfile=no + ;; + esac + ]) + if test $glibcxx_cv_sendfile = yes; then + AC_DEFINE(_GLIBCXX_USE_SENDFILE, 1, [Define if sendfile is available in <sys/sendfile.h>.]) + fi + AC_MSG_RESULT($glibcxx_cv_sendfile) dnl - AC_MSG_CHECKING([for sendfile that can copy files]) - AC_CACHE_VAL(glibcxx_cv_sendfile, [dnl - case "${target_os}" in - gnu* | linux* | solaris*) - GCC_TRY_COMPILE_OR_LINK( - [#include <sys/sendfile.h>], - [sendfile(1, 2, (off_t*)0, sizeof 1);], - [glibcxx_cv_sendfile=yes], - [glibcxx_cv_sendfile=no]) - ;; - *) - glibcxx_cv_sendfile=no - ;; - esac - ]) - if test $glibcxx_cv_sendfile = yes; then - AC_DEFINE(_GLIBCXX_USE_SENDFILE, 1, [Define if sendfile is available in <sys/sendfile.h>.]) - fi - AC_MSG_RESULT($glibcxx_cv_sendfile) + AC_MSG_CHECKING([for link]) + AC_CACHE_VAL(glibcxx_cv_link, [dnl + GCC_TRY_COMPILE_OR_LINK( + [#include <unistd.h>], + [link("", "");], + [glibcxx_cv_link=yes], + [glibcxx_cv_link=no]) + ]) + if test $glibcxx_cv_link = yes; then + AC_DEFINE(HAVE_LINK, 1, [Define if link is available in <unistd.h>.]) + fi + AC_MSG_RESULT($glibcxx_cv_link) dnl - CXXFLAGS="$ac_save_CXXFLAGS" - AC_LANG_RESTORE + AC_MSG_CHECKING([for readlink]) + AC_CACHE_VAL(glibcxx_cv_readlink, [dnl + GCC_TRY_COMPILE_OR_LINK( + [#include <unistd.h>], + [char buf[32]; readlink("", buf, sizeof(buf));], + [glibcxx_cv_readlink=yes], + [glibcxx_cv_readlink=no]) + ]) + if test $glibcxx_cv_readlink = yes; then + AC_DEFINE(HAVE_READLINK, 1, [Define if readlink is available in <unistd.h>.]) + fi + AC_MSG_RESULT($glibcxx_cv_readlink) +dnl + AC_MSG_CHECKING([for symlink]) + AC_CACHE_VAL(glibcxx_cv_symlink, [dnl + GCC_TRY_COMPILE_OR_LINK( + [#include <unistd.h>], + [symlink("", "");], + [glibcxx_cv_symlink=yes], + [glibcxx_cv_symlink=no]) + ]) + if test $glibcxx_cv_symlink = yes; then + AC_DEFINE(HAVE_SYMLINK, 1, [Define if symlink is available in <unistd.h>.]) + fi + AC_MSG_RESULT($glibcxx_cv_symlink) +dnl + CXXFLAGS="$ac_save_CXXFLAGS" + AC_LANG_RESTORE + fi ]) dnl |