X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=configure.ac;h=30d2056656ed471727311899b9ddba7b50fe517e;hp=c36a9fdf10a078b4f8edbdcef0367313efe0cdfd;hb=514079bbfc1482fa22b046565c7d741ba77df898;hpb=78d75878ba59e55d36205d78d98be26496e112c1

diff --git a/configure.ac b/configure.ac
index c36a9fd..30d2056 100644
--- a/configure.ac
+++ b/configure.ac
@@ -45,6 +45,16 @@ AM_MAINTAINER_MODE([enable])
 # Enable silent rules by default
 AM_SILENT_RULES([yes])
 
+
+##                               ##
+## OS and Arch specific defaults ##
+##                               ##
+
+AS_CASE([$host],
+  [*-cygwin*], [LT_NO_UNDEFINED="-no-undefined"]
+)
+
+
 AH_TEMPLATE([CONFIG_RCU_SMP], [Enable SMP support. With SMP support enabled, uniprocessors are also supported. With SMP support disabled, UP systems work fine, but the behavior of SMP systems is undefined.])
 AH_TEMPLATE([CONFIG_RCU_TLS], [TLS provided by the compiler.])
 AH_TEMPLATE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [clock_gettime() is detected.])
@@ -139,11 +149,6 @@ AC_CHECK_HEADERS([ \
 	sys/time.h \
 ])
 
-AS_CASE([$host],[*-cygwin*],
-	[AM_CONDITIONAL(USE_CYGWIN, true)],
-	[AM_CONDITIONAL(USE_CYGWIN, false)]
-)
-
 # Search for clock_gettime
 AC_SEARCH_LIBS([clock_gettime], [rt], [
 	AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1])
@@ -283,6 +288,8 @@ AC_CHECK_FUNCS([sched_setaffinity],[
 # Library versions for libtool
 AC_SUBST([URCU_LIBRARY_VERSION], [urcu_lib_version])
 
+AC_SUBST(LT_NO_UNDEFINED)
+
 AM_CPPFLAGS="-include config.h"
 AC_SUBST(AM_CPPFLAGS)