diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/ccan/libccan.m4 | 16 | ||||
| -rw-r--r-- | lib/ccan/wscript | 21 |
2 files changed, 37 insertions, 0 deletions
diff --git a/lib/ccan/libccan.m4 b/lib/ccan/libccan.m4 index 0d391ad961..7b27c69b81 100644 --- a/lib/ccan/libccan.m4 +++ b/lib/ccan/libccan.m4 @@ -23,6 +23,8 @@ AC_SUBST(CCAN_CFLAGS) # fairly harmless. AC_CHECK_HEADERS(err.h) +AC_CHECK_HEADERS(byteswap.h) + AC_CACHE_CHECK([whether we can compile with __attribute__((cold))], samba_cv_attribute_cold, [ @@ -270,6 +272,19 @@ if test x"$samba_cv_compound_literals" = xyes ; then [whether we have compound literals]) fi +AC_CACHE_CHECK([whether we have flexible array members], + samba_cv_have_flex_arr_member, + [ + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [struct foo { unsigned int x; int arr@<:@@:>@; }; ])], + samba_cv_have_flex_arr_member=yes) + ]) + +if test x"$samba_cv_have_flex_arr_member" = xyes ; then + AC_DEFINE(HAVE_FLEXIBLE_ARRAY_MEMBER, 1, + [whether we have flexible array member support]) +fi + AC_CACHE_CHECK([whether we have isblank], samba_cv_have_isblank, [ @@ -331,3 +346,4 @@ if test x"$samba_cv_warn_unused_result" = xyes ; then AC_DEFINE(HAVE_WARN_UNUSED_RESULT, 1, [whether we have __attribute__((warn_unused_result))]) fi +AC_HAVE_DECL(bswap_64, [#include <byteswap.h>]) diff --git a/lib/ccan/wscript b/lib/ccan/wscript index 334f8fe4d0..4af9dd4c83 100644 --- a/lib/ccan/wscript +++ b/lib/ccan/wscript @@ -5,6 +5,9 @@ import Logs, sys, Options def configure(conf): conf.DEFINE('HAVE_CCAN', 1) conf.CHECK_HEADERS('err.h') + conf.CHECK_HEADERS('byteswap.h') + conf.CHECK_FUNCS('bswap_64', link=False, headers="byteswap.h") + # FIXME: if they don't have -Werror, these will all fail. But they # probably will anyway... conf.CHECK_CODE('int __attribute__((cold)) func(int x) { return x; }', @@ -107,6 +110,9 @@ def configure(conf): define='HAVE_BUILTIN_TYPES_COMPATIBLE_P') conf.CHECK_CODE('int *foo = (int[]) { 1, 2, 3, 4 }; return foo[0] ? 0 : 1;', define='HAVE_COMPOUND_LITERALS') + conf.CHECK_CODE('struct foo { unsigned int x; int arr[]; };', + addmain=False, link=False, + define='HAVE_FLEXIBLE_ARRAY_MEMBER') conf.CHECK_CODE("""#include <ctype.h> int main(void) { return isblank(' ') ? 0 : 1; }""", link=True, addmain=False, add_headers=False, @@ -121,6 +127,21 @@ def configure(conf): # backtrace could be in libexecinfo or in libc conf.CHECK_FUNCS_IN('backtrace backtrace_symbols', 'execinfo', checklibc=True, headers='execinfo.h') + # Only check for FILE_OFFSET_BITS=64 if off_t is normally small: + # use raw routines because wrappers include previous _GNU_SOURCE + # or _FILE_OFFSET_BITS defines. + conf.check(fragment="""#include <sys/types.h> + int main(void) { return !(sizeof(off_t) < 8); }""", + execute=True, msg='Checking for small off_t', + define_name='SMALL_OFF_T') + # Unreliable return value above, hence use define. + if conf.CONFIG_SET('SMALL_OFF_T'): + conf.check(fragment="""#include <sys/types.h> + int main(void) { return !(sizeof(off_t) >= 8); }""", + execute=True, msg='Checking for -D_FILE_OFFSET_BITS=64', + ccflags='-D_FILE_OFFSET_BITS=64', + define_name='HAVE_FILE_OFFSET_BITS') + def ccan_module(bld, name, deps=''): bld.SAMBA_SUBSYSTEM('ccan-%s' % name, source=bld.path.ant_glob('%s/*.c' % name), |