diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 6027a61b1f..aa666a73f2 100644 --- a/configure.in +++ b/configure.in @@ -169,6 +169,7 @@ if test $ac_cv_libevent_dir != "(system)"; then fi fi +if test -z "$CROSS_COMPILE"; then AC_CACHE_CHECK([whether we need extra options to link libevent], ac_cv_libevent_linker_option, [ saved_LDFLAGS="$LDFLAGS" @@ -200,6 +201,7 @@ AC_CACHE_CHECK([whether we need extra options to link libevent], if test $ac_cv_libevent_linker_option != '(none)' ; then LDFLAGS="$ac_cv_libevent_linker_option $LDFLAGS" fi +fi dnl ------------------------------------------------------ dnl Where do you live, openssl? And how do we call you? @@ -266,6 +268,8 @@ if test "$ac_cv_openssl_dir" != "(system)"; then fi fi +if test -z $CROSS_COMPILE +then AC_CACHE_CHECK([whether we need extra options to link OpenSSL], ac_cv_openssl_linker_option, [ saved_LDFLAGS="$LDFLAGS" @@ -325,6 +329,7 @@ return (OPENSSL_VERSION_NUMBER == SSLeay()) == 0; if test "$ac_cv_openssl_linker_option" != '(none)' ; then LDFLAGS="$ac_cv_openssl_linker_option $LDFLAGS" fi +fi dnl Make sure to enable support for large off_t if avalable. @@ -377,11 +382,18 @@ AC_CHECK_SIZEOF(long long) AC_CHECK_SIZEOF(__int64) AC_CHECK_SIZEOF(void *) AC_CHECK_SIZEOF(time_t) + +if test -z "$CROSS_COMPILE"; then AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [ AC_TRY_RUN([ int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }], tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes) ]) +else + # Cross-compiling; let's hope the target platform isn't loony. + AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.]) + tor_cv_time_t_signed=yes +fi if test $tor_cv_time_t_signed = yes; then AC_DEFINE([TIME_T_IS_SIGNED], 1, @@ -399,6 +411,7 @@ AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT() AC_CHECK_SIZEOF(cell_t) # Now make sure that NULL can be represented as zero bytes. +if test -z "$CROSS_COMPILE"; then AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero, [AC_RUN_IFELSE([AC_LANG_SOURCE( [[#include <stdlib.h> @@ -413,6 +426,12 @@ return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])], [tor_cv_null_is_zero=no], [tor_cv_null_is_zero=cross])]) +else + # Cross-compiling; let's hope that the target isn't raving mad. + AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.]) + tor_cv_null_is_zero=yes +fi + if test $tor_cv_null_is_zero = yes; then AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1, [Define to 1 iff memset(0) sets pointers to NULL]) |