Yuriy Kaminskiy wrote: > Use of some function/features protected by #ifdefs, but lacks autoconf magic > to > automatically enable them when possible. Of course, they can be manually > enabled, but it is not very likely. And unused code tends to bitrot.
Oops, last time patch attachment with mime-type text/* worked :-( Inlining instead: =================================================================== Subject: autodetect and automatically use pread/pwrite The author or authors of this code dedicate any and all copyright interest in this code to the public domain. We make this dedication for the benefit of the public at large and to the detriment of our heirs and successors. We intend this dedication to be an overt act of relinquishment in perpetuity of all present and future rights to this code under copyright law. Signed-off-by: Yuriy M. Kaminskiy <yum...@gmail.com> Index: sqlite3-3.7.14/configure.ac =================================================================== --- sqlite3-3.7.14.orig/configure.ac +++ sqlite3-3.7.14/configure.ac @@ -127,7 +127,7 @@ AC_CHECK_HEADERS([sys/types.h stdlib.h s ######### # Figure out whether or not we have these functions # -AC_CHECK_FUNCS([usleep fdatasync localtime_r gmtime_r localtime_s utime malloc_usable_size]) +AC_CHECK_FUNCS([usleep fdatasync localtime_r gmtime_r localtime_s utime malloc_usable_size pread pwrite pread64 pwrite64]) ######### # By default, we use the amalgamation (this may be changed below...) @@ -284,6 +284,18 @@ if test "$SQLITE_THREADSAFE" = "1"; then fi ########## +# Auto-detect pread/pread64 +# +AC_ARG_ENABLE(pread, AC_HELP_STRING([--disable-pread], [Disable pread(2) use])) +if test x$enable_pread != xno; then + if test $ac_cv_func_pread64,$ac_cv_func_pwrite64 = yes,yes; then + AC_DEFINE(USE_PREAD64, 1, [Define if you want to use pread64 function]) + elif test $ac_cv_func_pread,$ac_cv_func_pwrite = yes,yes; then + AC_DEFINE(USE_PREAD, 1, [Define if you want to use pread function]) + fi +fi + +########## # Do we want to allow a connection created in one thread to be used # in another thread. This does not work on many Linux systems (ex: RedHat 9) # due to bugs in the threading implementations. This is thus off by default. =================================================================== Subject: autodetect strchrnul Signed-off-by: Yuriy M. Kaminskiy <yum...@gmail.com> Index: sqlite3-3.8.7.1/configure.ac =================================================================== --- sqlite3-3.8.7.1.orig/configure.ac +++ sqlite3-3.8.7.1/configure.ac @@ -127,7 +127,7 @@ AC_CHECK_HEADERS([sys/types.h stdlib.h s ######### # Figure out whether or not we have these functions # -AC_CHECK_FUNCS([usleep fdatasync localtime_r gmtime_r localtime_s utime malloc_usable_size pread pwrite pread64 pwrite64]) +AC_CHECK_FUNCS([usleep fdatasync localtime_r gmtime_r localtime_s utime malloc_usable_size pread pwrite pread64 pwrite64 strchrnul]) ######### # By default, we use the amalgamation (this may be changed below...) =================================================================== Subject: autodetect posix_fallocate Signed-off-by: Yuriy M. Kaminskiy <yum...@gmail.com> Index: sqlite3-3.8.7.1/configure.ac =================================================================== --- sqlite3-3.8.7.1.orig/configure.ac +++ sqlite3-3.8.7.1/configure.ac @@ -127,7 +127,7 @@ AC_CHECK_HEADERS([sys/types.h stdlib.h s ######### # Figure out whether or not we have these functions # -AC_CHECK_FUNCS([usleep fdatasync localtime_r gmtime_r localtime_s utime malloc_usable_size pread pwrite pread64 pwrite64 strchrnul]) +AC_CHECK_FUNCS([usleep fdatasync localtime_r gmtime_r localtime_s utime malloc_usable_size pread pwrite pread64 pwrite64 strchrnul posix_fallocate]) ######### # By default, we use the amalgamation (this may be changed below...) _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
