diff options
author | Chris Wilson <chris+github@qwirx.com> | 2011-09-25 18:39:00 +0000 |
---|---|---|
committer | Chris Wilson <chris+github@qwirx.com> | 2011-09-25 18:39:00 +0000 |
commit | 21d805a66416395a886a0bfd1d096d91c69ee848 (patch) | |
tree | 5ee2a56b6665194197458c2dffb47fe465b30bc2 | |
parent | 823113f815033038b55932f8646606218c627bf1 (diff) |
Move Box Backup's custom tests into own file, to share with Boxi.
-rw-r--r-- | configure.ac | 300 | ||||
-rw-r--r-- | infrastructure/m4/boxbackup_tests.m4 | 296 |
2 files changed, 304 insertions, 292 deletions
diff --git a/configure.ac b/configure.ac index fe2c51eb..6b4cc61d 100644 --- a/configure.ac +++ b/configure.ac @@ -22,298 +22,7 @@ if test "x$ac_cv_cxx_exceptions" != "xyes" || \ AC_MSG_ERROR([[basic compile checks failed, the C++ compiler is broken]]) fi -case $build_os in -solaris*) - isa_bits=`isainfo -b` - AC_MSG_NOTICE([setting compiler to use -m$isa_bits on Solaris]) - CFLAGS="$CFLAGS -m$isa_bits" - CXXFLAGS="$CXXFLAGS -m$isa_bits" - LDFLAGS="$LDFLAGS -m$isa_bits" - ;; -esac - -if test "x$GXX" = "xyes"; then - # Use -Wall if we have gcc. This gives better warnings - AC_SUBST([CXXFLAGS_STRICT], ['-Wall -Wundef']) - - # Don't check for gcc -rdynamic on Solaris as it's broken, but returns 0. - case $build_os in - solaris*) - AC_MSG_NOTICE([skipping check for -rdynamic check on Solaris]) - ;; - *) - # Check whether gcc supports -rdynamic, thanks to Steve Ellcey - # [http://readlist.com/lists/gcc.gnu.org/gcc/6/31502.html] - # This is needed to get symbols in backtraces. - # Note that this apparently fails on HP-UX and Solaris - LDFLAGS="$LDFLAGS -rdynamic" - AC_MSG_CHECKING([whether gcc accepts -rdynamic]) - AC_TRY_LINK([], [return 0;], - [AC_MSG_RESULT([yes]); have_rdynamic=yes], - [AC_MSG_RESULT([no])]) - if test x"$have_rdynamic" = x"yes" ; then - AC_SUBST([LDADD_RDYNAMIC], ['-rdynamic']) - fi - ;; - esac -fi - -AC_PATH_PROG([PERL], [perl], [AC_MSG_ERROR([[perl executable was not found]])]) - -case $target_os in -mingw*) - TARGET_PERL=perl - ;; -*) - TARGET_PERL=$PERL - ;; -esac - -AC_SUBST([TARGET_PERL]) -AC_DEFINE_UNQUOTED([PERL_EXECUTABLE], ["$TARGET_PERL"], - [Location of the perl executable]) - -AC_CHECK_TOOL([AR], [ar], - [AC_MSG_ERROR([[cannot find ar executable]])]) -AC_CHECK_TOOL([RANLIB], [ranlib], - [AC_MSG_ERROR([[cannot find ranlib executable]])]) - -case $target_os in -mingw*) - AC_CHECK_TOOL([WINDRES], [windres], - [AC_MSG_ERROR([[cannot find windres executable]])]) - ;; -esac - -### Checks for libraries. - -case $target_os in -mingw32*) ;; -winnt) ;; -*) - AC_SEARCH_LIBS([nanosleep], [rt], [ac_have_nanosleep=yes], - [AC_MSG_ERROR([[cannot find a short sleep function (nanosleep)]])]) - ;; -esac - -AC_CHECK_HEADER([zlib.h],, [AC_MSG_ERROR([[cannot find zlib.h]])]) -AC_CHECK_LIB([z], [zlibVersion],, [AC_MSG_ERROR([[cannot find zlib]])]) -VL_LIB_READLINE([have_libreadline=yes], [have_libreadline=no]) -AC_CHECK_FUNCS([rl_filename_completion_function]) - -## Check for Berkely DB. Restrict to certain versions -AX_PATH_BDB([1.x or 4.1], [ - LIBS="$BDB_LIBS $LIBS" - LDFLAGS="$BDB_LDFLAGS $LDFLAGS" - CPPFLAGS="$CPPFLAGS $BDB_CPPFLAGS" - - AX_COMPARE_VERSION([$BDB_VERSION],[ge],[4.1],, - [AX_COMPARE_VERSION([$BDB_VERSION],[lt],[2],, - [AC_MSG_ERROR([[only Berkely DB versions 1.x or at least 4.1 are currently supported]])] - )] - ) - AX_SPLIT_VERSION([BDB_VERSION], [$BDB_VERSION]) -]) - -## Check for Open SSL, use old versions only if explicitly requested -AC_SEARCH_LIBS([gethostbyname], [nsl socket resolv]) -AC_SEARCH_LIBS([shutdown], [nsl socket resolv]) -AX_CHECK_SSL(, [AC_MSG_ERROR([[OpenSSL is not installed but is required]])]) -AC_ARG_ENABLE( - [old-ssl], - [AC_HELP_STRING([--enable-old-ssl], - [Allow use of pre-0.9.7 Open SSL - NOT RECOMMENDED, read the documentation])]) -AC_CHECK_LIB( - [crypto], - [EVP_CipherInit_ex],, [ - if test "x$enable_old_ssl" = "xyes"; then - AC_DEFINE([HAVE_OLD_SSL], 1, [Define to 1 if SSL is pre-0.9.7]) - else - AC_MSG_ERROR([[found an old (pre 0.9.7) version of SSL. -Upgrade or read the documentation for alternatives]]) - fi - ]) - - -### Checks for header files. - -case $target_os in -mingw32*) ;; -winnt*) ;; -*) - AC_HEADER_DIRENT - ;; -esac - -AC_HEADER_STDC -AC_HEADER_SYS_WAIT -AC_CHECK_HEADERS([dlfcn.h getopt.h process.h pwd.h signal.h]) -AC_CHECK_HEADERS([syslog.h time.h cxxabi.h]) -AC_CHECK_HEADERS([netinet/in.h]) -AC_CHECK_HEADERS([sys/file.h sys/param.h sys/socket.h sys/time.h sys/types.h sys/wait.h]) -AC_CHECK_HEADERS([sys/uio.h sys/xattr.h]) -AC_CHECK_HEADERS([bsd/unistd.h]) - -AC_CHECK_HEADERS([execinfo.h], [have_execinfo_h=yes]) - -if test "$have_execinfo_h" = "yes"; then - AC_SEARCH_LIBS([backtrace],[execinfo]) -fi - -AC_CHECK_HEADER([regex.h], [have_regex_h=yes]) - -if test "$have_regex_h" = "yes"; then - AC_DEFINE([HAVE_REGEX_H], [1], [Define to 1 if regex.h is available]) -else - AC_CHECK_HEADER([pcreposix.h], [have_pcreposix_h=yes]) -fi - -if test "$have_pcreposix_h" = "yes"; then - AC_DEFINE([PCRE_STATIC], [1], [Box Backup always uses static PCRE]) - AC_SEARCH_LIBS([regcomp], ["pcreposix -lpcre"],,[have_pcreposix_h=no_regcomp]) -fi - -if test "$have_pcreposix_h" = "yes"; then - AC_DEFINE([HAVE_PCREPOSIX_H], [1], [Define to 1 if pcreposix.h is available]) -fi - -if test "$have_regex_h" = "yes" -o "$have_pcreposix_h" = "yes"; then - have_regex_support=yes - AC_DEFINE([HAVE_REGEX_SUPPORT], [1], [Define to 1 if regular expressions are supported]) -else - have_regex_support=no -fi - -AC_SEARCH_LIBS([dlsym], ["dl"]) -AC_CHECK_FUNCS([dlsym dladdr]) - -### Checks for typedefs, structures, and compiler characteristics. - -AC_CHECK_TYPES([u_int8_t, u_int16_t, u_int32_t, u_int64_t]) -AC_CHECK_TYPES([uint8_t, uint16_t, uint32_t, uint64_t]) - -AC_HEADER_STDBOOL -AC_C_CONST -AC_C_BIGENDIAN -AC_TYPE_UID_T -AC_TYPE_MODE_T -AC_TYPE_OFF_T -AC_TYPE_PID_T -AC_TYPE_SIZE_T - -AC_CHECK_MEMBERS([struct stat.st_flags]) -AC_CHECK_MEMBERS([struct stat.st_mtimespec]) -AC_CHECK_MEMBERS([struct stat.st_atim.tv_nsec]) -AC_CHECK_MEMBERS([struct stat.st_atimensec]) -AC_CHECK_MEMBERS([struct sockaddr_in.sin_len],,, [[ - #include <sys/types.h> - #include <netinet/in.h> - ]]) -AC_CHECK_MEMBERS([DIR.d_fd],,, [[#include <dirent.h>]]) -AC_CHECK_MEMBERS([DIR.dd_fd],,, [[#include <dirent.h>]]) - -AC_CHECK_DECLS([INFTIM],,, [[#include <poll.h>]]) -AC_CHECK_DECLS([SO_PEERCRED],,, [[#include <sys/socket.h>]]) -AC_CHECK_DECLS([O_BINARY],,,) - -# Solaris provides getpeerucred() instead of getpeereid() or SO_PEERCRED -AC_CHECK_HEADERS([ucred.h]) -AC_CHECK_FUNCS([getpeerucred]) - -AC_CHECK_DECLS([optreset],,, [[#include <getopt.h>]]) -AC_CHECK_DECLS([dirfd],,, - [[ - #include <getopt.h> - #include <dirent.h> - ]]) - -AC_HEADER_TIME -AC_STRUCT_TM -AX_CHECK_DIRENT_D_TYPE -AC_SYS_LARGEFILE -AX_CHECK_DEFINE_PRAGMA -if test "x$ac_cv_c_bigendian" != "xyes"; then - AX_BSWAP64 -fi - -case $target_os in -mingw32*) ;; -winnt*) ;; -*) - AX_RANDOM_DEVICE - AX_CHECK_MOUNT_POINT(,[ - AC_MSG_ERROR([[cannot work out how to discover mount points on your platform]]) - ]) - AC_CHECK_MEMBERS([struct dirent.d_ino],,, [[#include <dirent.h>]]) -;; -esac - -AX_CHECK_MALLOC_WORKAROUND - - -### Checks for library functions. - -AC_FUNC_CLOSEDIR_VOID -AC_FUNC_ERROR_AT_LINE -AC_TYPE_SIGNAL -AC_FUNC_STAT -AC_CHECK_FUNCS([getpeereid lchown setproctitle getpid gettimeofday waitpid ftruncate]) -AC_SEARCH_LIBS([setproctitle], ["bsd"]) - -# NetBSD implements kqueue too differently for us to get it fixed by 0.10 -# TODO: Remove this when NetBSD kqueue implementation is working -netbsd_hack=`echo $target_os | sed 's/netbsd.*/netbsd/'` -if test "$netbsd_hack" != "netbsd"; then - AC_CHECK_FUNCS([kqueue]) -fi - -AX_FUNC_SYSCALL -AX_CHECK_SYSCALL_LSEEK -AC_CHECK_FUNCS([listxattr llistxattr getxattr lgetxattr setxattr lsetxattr]) -AC_CHECK_DECLS([XATTR_NOFOLLOW],,, [[#include <sys/xattr.h>]]) - - -### Miscellaneous complicated feature checks - -## Check for large file support active. AC_SYS_LARGEFILE has already worked -## out how to enable it if necessary, we just use this to report to the user -AC_CACHE_CHECK([if we have large file support enabled], - [box_cv_have_large_file_support], - [AC_TRY_RUN([ - $ac_includes_default - int main() - { - return sizeof(off_t)==4; - } - ], - [box_cv_have_large_file_support=yes], - [box_cv_have_large_file_support=no], - [box_cv_have_large_file_support=no # safe for cross-compile] - ) - ]) - -if test "x$box_cv_have_large_file_support" = "xyes"; then - AC_DEFINE([HAVE_LARGE_FILE_SUPPORT], [1], - [Define to 1 if large files are supported]) -fi - -## Find out how to do file locking -AC_CHECK_FUNCS([flock fcntl]) -AC_CHECK_DECLS([O_EXLOCK],,, [[#include <fcntl.h>]]) -AC_CHECK_DECLS([F_SETLK],,, [[#include <fcntl.h>]]) - -case $target_os in -mingw32*) ;; -winnt*) ;; -*) -if test "x$ac_cv_func_flock" != "xyes" && \ - test "x$ac_cv_have_decl_O_EXLOCK" != "xyes" && \ - test "x$ac_cv_have_decl_F_SETLK" != "xyes" -then - AC_MSG_ERROR([[cannot work out how to do file locking on your platform]]) -fi -;; -esac +m4_include([infrastructure/m4/boxbackup_tests.m4]) ## Get tmpdir temp_directory_name="/tmp" @@ -446,6 +155,13 @@ Readline: $have_libreadline Extended attributes: $ac_cv_header_sys_xattr_h EOC +cat > config.env <<EOC +CC="$CC" +CXX="$CXX" +CXXFLAGS="$CXXFLAGS" +LDFLAGS="$LDFLAGS" +LIBS="$LIBS" +EOC ### Warnings at end for visibility diff --git a/infrastructure/m4/boxbackup_tests.m4 b/infrastructure/m4/boxbackup_tests.m4 new file mode 100644 index 00000000..9e395eb9 --- /dev/null +++ b/infrastructure/m4/boxbackup_tests.m4 @@ -0,0 +1,296 @@ +dnl All Box Backup configury magic is here, to be shared with Boxi + +case $build_os in +solaris*) + isa_bits=`isainfo -b` + AC_MSG_NOTICE([setting compiler to use -m$isa_bits on Solaris]) + CFLAGS="$CFLAGS -m$isa_bits" + CXXFLAGS="$CXXFLAGS -m$isa_bits" + LDFLAGS="$LDFLAGS -m$isa_bits" + ;; +esac + +if test "x$GXX" = "xyes"; then + # Use -Wall if we have gcc. This gives better warnings + AC_SUBST([CXXFLAGS_STRICT], ['-Wall -Wundef']) + + # Don't check for gcc -rdynamic on Solaris as it's broken, but returns 0. + case $build_os in + solaris*) + AC_MSG_NOTICE([skipping check for -rdynamic check on Solaris]) + ;; + *) + # Check whether gcc supports -rdynamic, thanks to Steve Ellcey + # [http://readlist.com/lists/gcc.gnu.org/gcc/6/31502.html] + # This is needed to get symbols in backtraces. + # Note that this apparently fails on HP-UX and Solaris + LDFLAGS="$LDFLAGS -rdynamic" + AC_MSG_CHECKING([whether gcc accepts -rdynamic]) + AC_TRY_LINK([], [return 0;], + [AC_MSG_RESULT([yes]); have_rdynamic=yes], + [AC_MSG_RESULT([no])]) + if test x"$have_rdynamic" = x"yes" ; then + AC_SUBST([LDADD_RDYNAMIC], ['-rdynamic']) + fi + ;; + esac +fi + +AC_PATH_PROG([PERL], [perl], [AC_MSG_ERROR([[perl executable was not found]])]) + +case $target_os in +mingw*) + TARGET_PERL=perl + ;; +*) + TARGET_PERL=$PERL + ;; +esac + +AC_SUBST([TARGET_PERL]) +AC_DEFINE_UNQUOTED([PERL_EXECUTABLE], ["$TARGET_PERL"], + [Location of the perl executable]) + +AC_CHECK_TOOL([AR], [ar], + [AC_MSG_ERROR([[cannot find ar executable]])]) +AC_CHECK_TOOL([RANLIB], [ranlib], + [AC_MSG_ERROR([[cannot find ranlib executable]])]) + +case $target_os in +mingw*) + AC_CHECK_TOOL([WINDRES], [windres], + [AC_MSG_ERROR([[cannot find windres executable]])]) + ;; +esac + +### Checks for libraries. + +case $target_os in +mingw32*) ;; +winnt) ;; +*) + AC_SEARCH_LIBS([nanosleep], [rt], [ac_have_nanosleep=yes], + [AC_MSG_ERROR([[cannot find a short sleep function (nanosleep)]])]) + ;; +esac + +AC_CHECK_HEADER([zlib.h],, [AC_MSG_ERROR([[cannot find zlib.h]])]) +AC_CHECK_LIB([z], [zlibVersion],, [AC_MSG_ERROR([[cannot find zlib]])]) +VL_LIB_READLINE([have_libreadline=yes], [have_libreadline=no]) +AC_CHECK_FUNCS([rl_filename_completion_function]) + +## Check for Berkely DB. Restrict to certain versions +AX_PATH_BDB([1.x or 4.1], [ + LIBS="$BDB_LIBS $LIBS" + LDFLAGS="$BDB_LDFLAGS $LDFLAGS" + CPPFLAGS="$CPPFLAGS $BDB_CPPFLAGS" + + AX_COMPARE_VERSION([$BDB_VERSION],[ge],[4.1],, + [AX_COMPARE_VERSION([$BDB_VERSION],[lt],[2],, + [AC_MSG_ERROR([[only Berkely DB versions 1.x or at least 4.1 are currently supported]])] + )] + ) + AX_SPLIT_VERSION([BDB_VERSION], [$BDB_VERSION]) +]) + +## Check for Open SSL, use old versions only if explicitly requested +AC_SEARCH_LIBS([gethostbyname], [nsl socket resolv]) +AC_SEARCH_LIBS([shutdown], [nsl socket resolv]) +AX_CHECK_SSL(, [AC_MSG_ERROR([[OpenSSL is not installed but is required]])]) +AC_ARG_ENABLE( + [old-ssl], + [AC_HELP_STRING([--enable-old-ssl], + [Allow use of pre-0.9.7 Open SSL - NOT RECOMMENDED, read the documentation])]) +AC_CHECK_LIB( + [crypto], + [EVP_CipherInit_ex],, [ + if test "x$enable_old_ssl" = "xyes"; then + AC_DEFINE([HAVE_OLD_SSL], 1, [Define to 1 if SSL is pre-0.9.7]) + else + AC_MSG_ERROR([[found an old (pre 0.9.7) version of SSL. +Upgrade or read the documentation for alternatives]]) + fi + ]) + + +### Checks for header files. + +case $target_os in +mingw32*) ;; +winnt*) ;; +*) + AC_HEADER_DIRENT + ;; +esac + +AC_HEADER_STDC +AC_HEADER_SYS_WAIT +AC_CHECK_HEADERS([dlfcn.h getopt.h process.h pwd.h signal.h]) +AC_CHECK_HEADERS([syslog.h time.h cxxabi.h]) +AC_CHECK_HEADERS([netinet/in.h]) +AC_CHECK_HEADERS([sys/file.h sys/param.h sys/socket.h sys/time.h sys/types.h sys/wait.h]) +AC_CHECK_HEADERS([sys/uio.h sys/xattr.h]) +AC_CHECK_HEADERS([bsd/unistd.h]) + +AC_CHECK_HEADERS([execinfo.h], [have_execinfo_h=yes]) + +if test "$have_execinfo_h" = "yes"; then + AC_SEARCH_LIBS([backtrace],[execinfo]) +fi + +AC_CHECK_HEADER([regex.h], [have_regex_h=yes]) + +if test "$have_regex_h" = "yes"; then + AC_DEFINE([HAVE_REGEX_H], [1], [Define to 1 if regex.h is available]) +else + AC_CHECK_HEADER([pcreposix.h], [have_pcreposix_h=yes]) +fi + +if test "$have_pcreposix_h" = "yes"; then + AC_DEFINE([PCRE_STATIC], [1], [Box Backup always uses static PCRE]) + AC_SEARCH_LIBS([regcomp], ["pcreposix -lpcre"],,[have_pcreposix_h=no_regcomp]) +fi + +if test "$have_pcreposix_h" = "yes"; then + AC_DEFINE([HAVE_PCREPOSIX_H], [1], [Define to 1 if pcreposix.h is available]) +fi + +if test "$have_regex_h" = "yes" -o "$have_pcreposix_h" = "yes"; then + have_regex_support=yes + AC_DEFINE([HAVE_REGEX_SUPPORT], [1], [Define to 1 if regular expressions are supported]) +else + have_regex_support=no +fi + +AC_SEARCH_LIBS([dlsym], ["dl"]) +AC_CHECK_FUNCS([dlsym dladdr]) + +### Checks for typedefs, structures, and compiler characteristics. + +AC_CHECK_TYPES([u_int8_t, u_int16_t, u_int32_t, u_int64_t]) +AC_CHECK_TYPES([uint8_t, uint16_t, uint32_t, uint64_t]) + +AC_HEADER_STDBOOL +AC_C_CONST +AC_C_BIGENDIAN +AC_TYPE_UID_T +AC_TYPE_MODE_T +AC_TYPE_OFF_T +AC_TYPE_PID_T +AC_TYPE_SIZE_T + +AC_CHECK_MEMBERS([struct stat.st_flags]) +AC_CHECK_MEMBERS([struct stat.st_mtimespec]) +AC_CHECK_MEMBERS([struct stat.st_atim.tv_nsec]) +AC_CHECK_MEMBERS([struct stat.st_atimensec]) +AC_CHECK_MEMBERS([struct sockaddr_in.sin_len],,, [[ + #include <sys/types.h> + #include <netinet/in.h> + ]]) +AC_CHECK_MEMBERS([DIR.d_fd],,, [[#include <dirent.h>]]) +AC_CHECK_MEMBERS([DIR.dd_fd],,, [[#include <dirent.h>]]) + +AC_CHECK_DECLS([INFTIM],,, [[#include <poll.h>]]) +AC_CHECK_DECLS([SO_PEERCRED],,, [[#include <sys/socket.h>]]) +AC_CHECK_DECLS([O_BINARY],,,) + +# Solaris provides getpeerucred() instead of getpeereid() or SO_PEERCRED +AC_CHECK_HEADERS([ucred.h]) +AC_CHECK_FUNCS([getpeerucred]) + +AC_CHECK_DECLS([optreset],,, [[#include <getopt.h>]]) +AC_CHECK_DECLS([dirfd],,, + [[ + #include <getopt.h> + #include <dirent.h> + ]]) + +AC_HEADER_TIME +AC_STRUCT_TM +AX_CHECK_DIRENT_D_TYPE +AC_SYS_LARGEFILE +AX_CHECK_DEFINE_PRAGMA +if test "x$ac_cv_c_bigendian" != "xyes"; then + AX_BSWAP64 +fi + +case $target_os in +mingw32*) ;; +winnt*) ;; +*) + AX_RANDOM_DEVICE + AX_CHECK_MOUNT_POINT(,[ + AC_MSG_ERROR([[cannot work out how to discover mount points on your platform]]) + ]) + AC_CHECK_MEMBERS([struct dirent.d_ino],,, [[#include <dirent.h>]]) +;; +esac + +AX_CHECK_MALLOC_WORKAROUND + + +### Checks for library functions. + +AC_FUNC_CLOSEDIR_VOID +AC_FUNC_ERROR_AT_LINE +AC_TYPE_SIGNAL +AC_FUNC_STAT +AC_CHECK_FUNCS([getpeereid lchown setproctitle getpid gettimeofday waitpid ftruncate]) +AC_SEARCH_LIBS([setproctitle], ["bsd"]) + +# NetBSD implements kqueue too differently for us to get it fixed by 0.10 +# TODO: Remove this when NetBSD kqueue implementation is working +netbsd_hack=`echo $target_os | sed 's/netbsd.*/netbsd/'` +if test "$netbsd_hack" != "netbsd"; then + AC_CHECK_FUNCS([kqueue]) +fi + +AX_FUNC_SYSCALL +AX_CHECK_SYSCALL_LSEEK +AC_CHECK_FUNCS([listxattr llistxattr getxattr lgetxattr setxattr lsetxattr]) +AC_CHECK_DECLS([XATTR_NOFOLLOW],,, [[#include <sys/xattr.h>]]) + + +### Miscellaneous complicated feature checks + +## Check for large file support active. AC_SYS_LARGEFILE has already worked +## out how to enable it if necessary, we just use this to report to the user +AC_CACHE_CHECK([if we have large file support enabled], + [box_cv_have_large_file_support], + [AC_TRY_RUN([ + $ac_includes_default + int main() + { + return sizeof(off_t)==4; + } + ], + [box_cv_have_large_file_support=yes], + [box_cv_have_large_file_support=no], + [box_cv_have_large_file_support=no # safe for cross-compile] + ) + ]) + +if test "x$box_cv_have_large_file_support" = "xyes"; then + AC_DEFINE([HAVE_LARGE_FILE_SUPPORT], [1], + [Define to 1 if large files are supported]) +fi + +## Find out how to do file locking +AC_CHECK_FUNCS([flock fcntl]) +AC_CHECK_DECLS([O_EXLOCK],,, [[#include <fcntl.h>]]) +AC_CHECK_DECLS([F_SETLK],,, [[#include <fcntl.h>]]) + +case $target_os in +mingw32*) ;; +winnt*) ;; +*) +if test "x$ac_cv_func_flock" != "xyes" && \ + test "x$ac_cv_have_decl_O_EXLOCK" != "xyes" && \ + test "x$ac_cv_have_decl_F_SETLK" != "xyes" +then + AC_MSG_ERROR([[cannot work out how to do file locking on your platform]]) +fi +;; +esac + + |