diff --git a/configure/os/CONFIG.Common.solaris-x86 b/configure/os/CONFIG.Common.solaris-x86
index 642ae5b59..caa817d5b 100644
--- a/configure/os/CONFIG.Common.solaris-x86
+++ b/configure/os/CONFIG.Common.solaris-x86
@@ -13,7 +13,7 @@ include $(CONFIG)/os/CONFIG.Common.UnixCommon
 OS_CLASS = solaris
 ARCH_CLASS = x86
 
-CODE_CPPFLAGS = -D__EXTENSIONS__
+CODE_CPPFLAGS = -D__EXTENSIONS__ -mt
 
 SOLARIS_VERSION = $(subst 5.,,$(shell uname -r))
 
@@ -23,7 +23,7 @@ POSIX_CPPFLAGS_YES_6 += -D_REENTRANT
 POSIX_CPPFLAGS_YES += -D_POSIX_C_SOURCE=199506L $(POSIX_CPPFLAGS_YES_$(SOLARIS_VERSION))
 POSIX_CPPFLAGS_YES += -D_XOPEN_SOURCE=500
 POSIX_LDLIBS_YES_6 += -lthread
-POSIX_LDLIBS_YES += -lposix4 -lpthread $(POSIX_LDLIBS_YES_$(SOLARIS_VERSION))
+POSIX_LDLIBS_YES += -mt -lposix4 -lpthread $(POSIX_LDLIBS_YES_$(SOLARIS_VERSION))
 
 OP_SYS_CPPFLAGS += -DSOLARIS=$(SOLARIS_VERSION)
 ARCH_DEP_CPPFLAGS = -D_X86_