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-rw-r--r--Makefile.rules5
1 files changed, 5 insertions, 0 deletions
diff --git a/Makefile.rules b/Makefile.rules
index 55d4d1b703..c74c46c56c 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -451,6 +451,11 @@ ifdef UNIVERSAL
DISABLE_AUTO_DEPENDENCIES=1
endif
+# Solaris requires the following flags to compile
+ifeq ($(OS),SunOS)
+CXX.Flags += -D_POSIX_C_SOURCE=199506L -U_XOPEN_SOURCE
+endif
+
LD.Flags += -L$(LibDir) -L$(LLVMLibDir)
CPP.BaseFlags += -D_GNU_SOURCE -D__STDC_LIMIT_MACROS
# All -I flags should go here, so that they don't confuse llvm-config.