factotum/libressl-portable
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add configure-time check for timespecsub

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This commit is contained in:
Brent Cook 2019-01-06 13:20:29 -06:00
parent 779ec4dedc
commit 7af3ba340d
3 changed files with 13 additions and 2 deletions
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5
CMakeLists.txt
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@ -237,6 +237,11 @@ if(HAVE_GETPAGESIZE)
add_definitions(-DHAVE_GETPAGESIZE)
endif()
check_symbol_exists(timespecsub sys/time.h HAVE_TIMESPECSUB)
if(HAVE_TIMESPECSUB)
add_definitions(-DHAVE_TIMESPECSUB)
endif()
check_function_exists(timingsafe_bcmp HAVE_TIMINGSAFE_BCMP)
if(HAVE_TIMINGSAFE_BCMP)
add_definitions(-DHAVE_TIMINGSAFE_BCMP)

7
include/compat/time.h
View File

@ -39,7 +39,11 @@ typedef int clockid_t;
int clock_gettime(clockid_t clock_id, struct timespec *tp);
#endif
#ifndef timespecsub
#ifdef timespecsub
#define HAVE_TIMESPECSUB
#endif
#ifndef HAVE_TIMESPECSUB
#define timespecsub(tsp, usp, vsp) \
do { \
(vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \
@ -50,6 +54,7 @@ int clock_gettime(clockid_t clock_id, struct timespec *tp);
} \
} while (0)
#endif
#endif
#endif

3
m4/check-libc.m4
View File

@ -5,7 +5,7 @@ AC_CHECK_HEADERS([err.h readpassphrase.h])
AC_CHECK_FUNCS([asprintf freezero memmem])
AC_CHECK_FUNCS([readpassphrase reallocarray recallocarray])
AC_CHECK_FUNCS([strlcat strlcpy strndup strnlen strsep strtonum])
AC_CHECK_FUNCS([timegm _mkgmtime])
AC_CHECK_FUNCS([timegm _mkgmtime timespecsub])
AC_CACHE_CHECK([for getpagesize], ac_cv_func_getpagesize, [
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
// Since Android NDK v16 getpagesize is defined as inline inside unistd.h
@ -22,6 +22,7 @@ AC_CACHE_CHECK([for getpagesize], ac_cv_func_getpagesize, [
AM_CONDITIONAL([HAVE_ASPRINTF], [test "x$ac_cv_func_asprintf" = xyes])
AM_CONDITIONAL([HAVE_FREEZERO], [test "x$ac_cv_func_freezero" = xyes])
AM_CONDITIONAL([HAVE_GETPAGESIZE], [test "x$ac_cv_func_getpagesize" = xyes])
AM_CONDITIONAL([HAVE_TIMESPECSUB], [test "x$ac_cv_func_timespecsub" = xyes])
AM_CONDITIONAL([HAVE_MEMMEM], [test "x$ac_cv_func_memmem" = xyes])
AM_CONDITIONAL([HAVE_READPASSPHRASE], [test "x$ac_cv_func_readpassphrase" = xyes])
AM_CONDITIONAL([HAVE_REALLOCARRAY], [test "x$ac_cv_func_reallocarray" = xyes])