libevent_openssl.m4 (1766B)
1 dnl ###################################################################### 2 dnl OpenSSL support 3 AC_DEFUN([LIBEVENT_OPENSSL], [ 4 AC_REQUIRE([NTP_PKG_CONFIG])dnl 5 6 case "$enable_openssl" in 7 yes) 8 have_openssl=no 9 case "$PKG_CONFIG" in 10 '') 11 ;; 12 *) 13 OPENSSL_LIBS=`$PKG_CONFIG --libs openssl 2>/dev/null` 14 case "$OPENSSL_LIBS" in 15 '') ;; 16 *) OPENSSL_LIBS="$OPENSSL_LIBS $EV_LIB_GDI $EV_LIB_WS32 $OPENSSL_LIBADD" 17 have_openssl=yes 18 ;; 19 esac 20 OPENSSL_INCS=`$PKG_CONFIG --cflags openssl 2>/dev/null` 21 ;; 22 esac 23 case "$have_openssl" in 24 yes) ;; 25 *) 26 save_LIBS="$LIBS" 27 LIBS="" 28 OPENSSL_LIBS="" 29 for lib in crypto eay32; do 30 # clear cache 31 unset ac_cv_search_SSL_new 32 AC_SEARCH_LIBS([SSL_new], [ssl ssl32], 33 [have_openssl=yes 34 OPENSSL_LIBS="$LIBS -l$lib $EV_LIB_GDI $EV_LIB_WS32 $OPENSSL_LIBADD"], 35 [have_openssl=no], 36 [-l$lib $EV_LIB_GDI $EV_LIB_WS32 $OPENSSL_LIBADD]) 37 LIBS="$save_LIBS" 38 test "$have_openssl" = "yes" && break 39 done 40 ;; 41 esac 42 CPPFLAGS_SAVE=$CPPFLAGS 43 CPPFLAGS="$CPPFLAGS $OPENSSL_INCS" 44 AC_CHECK_HEADERS([openssl/ssl.h], [], [have_openssl=no]) 45 CPPFLAGS=$CPPFLAGS_SAVE 46 AC_SUBST(OPENSSL_INCS) 47 AC_SUBST(OPENSSL_LIBS) 48 case "$have_openssl" in 49 yes) AC_DEFINE(HAVE_OPENSSL, 1, [Define if the system has openssl]) ;; 50 *) AC_MSG_ERROR([openssl is a must but can not be found. You should add the \ 51 directory containing `openssl.pc' to the `PKG_CONFIG_PATH' environment variable, \ 52 or set `CFLAGS' and `LDFLAGS' directly for openssl, or use `--disable-openssl' \ 53 to disable support for openssl encryption]) 54 ;; 55 esac 56 ;; 57 esac 58 59 # check if we have and should use openssl 60 AM_CONDITIONAL(OPENSSL, [test "$enable_openssl" != "no" && test "$have_openssl" = "yes"]) 61 ])