Index: MultiSource/Applications/JM/ldecod/CMakeLists.txt
===================================================================
--- MultiSource/Applications/JM/ldecod/CMakeLists.txt
+++ MultiSource/Applications/JM/ldecod/CMakeLists.txt
@@ -1,4 +1,4 @@
-list(APPEND CPPFLAGS -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64)
+list(APPEND CPPFLAGS -fcommon -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64)
 list(APPEND LDFLAGS -lm)
 set(RUN_OPTIONS -i data/test.264 -o Output/test_dec.yuv -r data/test_rec.yuv)
 llvm_multisource(ldecod)
Index: MultiSource/Applications/JM/lencod/CMakeLists.txt
===================================================================
--- MultiSource/Applications/JM/lencod/CMakeLists.txt
+++ MultiSource/Applications/JM/lencod/CMakeLists.txt
@@ -1,4 +1,4 @@
-list(APPEND CPPFLAGS -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64)
+list(APPEND CPPFLAGS -fcommon -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64)
 list(APPEND LDFLAGS -lm)
 set(FP_TOLERANCE 0.025)
 if(SMALL_PROBLEM_SIZE)
Index: MultiSource/Benchmarks/ASC_Sequoia/IRSmk/CMakeLists.txt
===================================================================
--- MultiSource/Benchmarks/ASC_Sequoia/IRSmk/CMakeLists.txt
+++ MultiSource/Benchmarks/ASC_Sequoia/IRSmk/CMakeLists.txt
@@ -1,3 +1,4 @@
+list(APPEND CFLAGS -fcommon)
 list(APPEND LDFLAGS -lm)
 set(RUN_OPTIONS irsmk_input)
 llvm_multisource(IRSmk)
Index: MultiSource/Benchmarks/DOE-ProxyApps-C/miniAMR/CMakeLists.txt
===================================================================
--- MultiSource/Benchmarks/DOE-ProxyApps-C/miniAMR/CMakeLists.txt
+++ MultiSource/Benchmarks/DOE-ProxyApps-C/miniAMR/CMakeLists.txt
@@ -1,4 +1,4 @@
-list(APPEND CPPFLAGS -I.)
+list(APPEND CPPFLAGS -fcommon -I.)
 list(APPEND LDFLAGS -lm)
 set(RUN_OPTIONS --nx 8 --ny 8 --nz 8 --num_tsteps 100)
 llvm_multisource(miniAMR)
Index: MultiSource/Benchmarks/Olden/bh/CMakeLists.txt
===================================================================
--- MultiSource/Benchmarks/Olden/bh/CMakeLists.txt
+++ MultiSource/Benchmarks/Olden/bh/CMakeLists.txt
@@ -1,4 +1,4 @@
-list(APPEND CPPFLAGS -DTORONTO)
+list(APPEND CPPFLAGS -fcommon -DTORONTO)
 list(APPEND LDFLAGS -lm)
 if(LARGE_PROBLEM_SIZE)
   set(RUN_OPTIONS 40000 30)
Index: MultiSource/Benchmarks/Prolangs-C/TimberWolfMC/CMakeLists.txt
===================================================================
--- MultiSource/Benchmarks/Prolangs-C/TimberWolfMC/CMakeLists.txt
+++ MultiSource/Benchmarks/Prolangs-C/TimberWolfMC/CMakeLists.txt
@@ -1,2 +1,3 @@
+list(APPEND CPPFLAGS -fcommon)
 list(APPEND LDFLAGS -lm)
 llvm_multisource(timberwolfmc)
Index: MultiSource/Benchmarks/Prolangs-C/compiler/CMakeLists.txt
===================================================================
--- MultiSource/Benchmarks/Prolangs-C/compiler/CMakeLists.txt
+++ MultiSource/Benchmarks/Prolangs-C/compiler/CMakeLists.txt
@@ -1 +1,2 @@
+list(APPEND CPPFLAGS -fcommon)
 llvm_multisource(compiler)
Index: MultiSource/Benchmarks/Prolangs-C/loader/CMakeLists.txt
===================================================================
--- MultiSource/Benchmarks/Prolangs-C/loader/CMakeLists.txt
+++ MultiSource/Benchmarks/Prolangs-C/loader/CMakeLists.txt
@@ -1,2 +1,3 @@
+list(APPEND CPPFLAGS -fcommon)
 list(APPEND LDFLAGS -lm)
 llvm_multisource(loader)
Index: MultiSource/Benchmarks/Prolangs-C/simulator/CMakeLists.txt
===================================================================
--- MultiSource/Benchmarks/Prolangs-C/simulator/CMakeLists.txt
+++ MultiSource/Benchmarks/Prolangs-C/simulator/CMakeLists.txt
@@ -1,2 +1,3 @@
+list(APPEND CPPFLAGS -fcommon)
 list(APPEND LDFLAGS -lm)
 llvm_multisource(simulator)