CONFIG: improve support for compiler/link options (#1830)

- introduce WM_COMPILE_CONTROL variable to convey control information
  into the build rules.

  The convention (as per spack):
      - '+' to select a feature
      - '~' to deselect a feature

  Eg, to select the gold linker, and disable openmp
  (spaces are not required):

      WM_COMPILE_CONTROL="+gold ~openmp"

CONFIG: accept FOAM_EXTRA_LDFLAGS for AMD, gold, Mingw linkers

CONFIG: generalize PROJECT_LIBS (-ldl used almost universally)

applications/test/00-dummy/Make/options

-/* Without the normal defaults */
-PROJECT_INC     =
-PROJECT_LIBS    =
-
+/* Without the normal project defaults */
+PROJECT_INC =
+PROJECT_LIBS =
 
 EXE_INC = -Idummy
-
-EXE_LIBS = \
-    -lOpenFOAM-dummy
+EXE_LIBS = -lOpenFOAM-dummy

applications/test/00-dummy/dummy/Make/options

-/* Without the normal defaults */
-PROJECT_INC     =
-PROJECT_LIBS    =
+/* Without the normal project defaults */
+PROJECT_INC =
+PROJECT_LIBS =
 
 EXE_INC = \
     -DWM_ARCH=\"$(WM_ARCH)\"  \
@@ -8,5 +8,4 @@ EXE_INC = \
     -DWM_COMPILE_OPTION=\"$(WM_COMPILE_OPTION)\" \
     -DWM_OPTIONS=\"$(WM_OPTIONS)\"
 
-
 /* LIB_LIBS = */

applications/test/CompactIOList/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/ListOps/Make/options

-EXE_INC = /*-DFULLDEBUG -O0 -g*/ \
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/ListOps2/Make/options

-EXE_INC = /*-DFULLDEBUG -O0 -g*/ \
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/Polynomial/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/Random/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/dynamicLibrary/Make/options

-EXE_INC =
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/foamToMetisGraph/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/globalMeshData/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/polynomialEqns/cubicEqn/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/polynomialEqns/linearEqn/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/polynomialEqns/quadraticEqn/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/wmake1/Make/options

-EXE_INC =
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/mesh/generation/foamyMesh/conformalVoronoi2DMesh/Make/options

-EXE_INC =
-
-LIB_LIBS =
+/* EXE_INC = */
+/* LIB_LIBS = */

applications/utilities/mesh/manipulation/objToVTK/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/miscellaneous/OSspecific/addr2line/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/miscellaneous/foamDictionary/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/miscellaneous/foamHasLibrary/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/miscellaneous/foamListTimes/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/miscellaneous/foamRestoreFields/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/postProcessing/miscellaneous/profilingSummary/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

etc/bashrc

@@ -83,6 +83,11 @@ export WM_LABEL_SIZE=32
 # Other is processor or packaging specific (eg, OptKNL)
 export WM_COMPILE_OPTION=Opt
 
+# [WM_COMPILE_CONTROL] - additional control for compiler rules
+#   +gold   : with gold linker
+#   ~openmp : without openmp
+#export WM_COMPILE_CONTROL="+gold"
+
 # [WM_MPLIB] - MPI implementation:
 # = SYSTEMOPENMPI | OPENMPI | SYSTEMMPI | MPI | MPICH | MPICH-GM |
 #   HPMPI | CRAY-MPICH | FJMPI | QSMPI | SGIMPI | INTELMPI | USERMPI

etc/config.csh/unset

@@ -47,11 +47,11 @@ unsetenv WM_ARCH
 unsetenv WM_ARCH_OPTION
 unsetenv WM_COMPILER
 unsetenv WM_COMPILER_ARCH
-unsetenv WM_COMPILER_TYPE
 unsetenv WM_COMPILER_LIB_ARCH
+unsetenv WM_COMPILER_TYPE
+unsetenv WM_COMPILE_CONTROL
 unsetenv WM_COMPILE_OPTION
 unsetenv WM_DIR
-unsetenv WM_HOSTS
 unsetenv WM_LABEL_OPTION
 unsetenv WM_LABEL_SIZE
 unsetenv WM_MPLIB
@@ -60,21 +60,21 @@ unsetenv WM_OPTIONS
 unsetenv WM_OSTYPE
 unsetenv WM_PRECISION_OPTION
 unsetenv WM_PROJECT
-unsetenv WM_PROJECT_API
 unsetenv WM_PROJECT_DIR
-unsetenv WM_PROJECT_INST_DIR
 unsetenv WM_PROJECT_SITE
 unsetenv WM_PROJECT_USER_DIR
 unsetenv WM_PROJECT_VERSION
 unsetenv WM_SCHEDULER
 unsetenv WM_THIRD_PARTY_DIR
 
-# Older variables
+# Older, unused variables
+unsetenv WM_HOSTS
+unsetenv WM_PROJECT_API
+unsetenv WM_PROJECT_INST_DIR
 
 # Before 1906
 unsetenv WM_CC WM_CXX WM_CFLAGS WM_CXXFLAGS WM_LDFLAGS
 
-
 #------------------------------------------------------------------------------
 # Unset FOAM_* environment variables
 
@@ -106,7 +106,7 @@ unsetenv FOAM_USER_APPBIN
 unsetenv FOAM_USER_LIBBIN
 unsetenv FOAM_UTILITIES
 
-# Old variables
+# Older, unused variables
 
 # Before 1812
 unsetenv FOAM_INST_DIR

etc/config.sh/unset

@@ -35,11 +35,12 @@ foamOldDirs="$WM_PROJECT_DIR $WM_THIRD_PARTY_DIR \
 unset WM_ARCH
 unset WM_ARCH_OPTION
 unset WM_COMPILER
-unset WM_COMPILER_TYPE
+unset WM_COMPILER_ARCH
 unset WM_COMPILER_LIB_ARCH
+unset WM_COMPILER_TYPE
+unset WM_COMPILE_CONTROL
 unset WM_COMPILE_OPTION
 unset WM_DIR
-unset WM_HOSTS
 unset WM_LABEL_OPTION
 unset WM_LABEL_SIZE
 unset WM_MPLIB
@@ -48,16 +49,17 @@ unset WM_OPTIONS
 unset WM_OSTYPE
 unset WM_PRECISION_OPTION
 unset WM_PROJECT
-unset WM_PROJECT_API
 unset WM_PROJECT_DIR
-unset WM_PROJECT_INST_DIR
 unset WM_PROJECT_SITE
 unset WM_PROJECT_USER_DIR
 unset WM_PROJECT_VERSION
 unset WM_SCHEDULER
 unset WM_THIRD_PARTY_DIR
 
-# Older variables
+# Older, unused variables
+unset WM_HOSTS
+unset WM_PROJECT_API
+unset WM_PROJECT_INST_DIR
 
 # Before 1906
 unset WM_CC WM_CXX WM_CFLAGS WM_CXXFLAGS WM_LDFLAGS
@@ -93,7 +95,7 @@ unset FOAM_USER_APPBIN
 unset FOAM_USER_LIBBIN
 unset FOAM_UTILITIES
 
-# Old variables
+# Older, unused variables
 
 # Before 1812
 unset FOAM_INST_DIR

etc/cshrc

@@ -83,6 +83,11 @@ setenv WM_LABEL_SIZE 32
 # Other is processor or packaging specific (eg, OptKNL)
 setenv WM_COMPILE_OPTION Opt
 
+# [WM_COMPILE_CONTROL] - additional control for compiler rules
+#   +gold   : with gold linker
+#   ~openmp : without openmp
+#setenv WM_COMPILE_CONTROL "+gold"
+
 # [WM_MPLIB] - MPI implementation:
 # = SYSTEMOPENMPI | OPENMPI | SYSTEMMPI | MPI | MPICH | MPICH-GM |
 #   HPMPI | CRAY-MPICH | FJMPI | QSMPI | SGIMPI | INTELMPI | USERMPI

src/Allwmake

@@ -20,6 +20,9 @@ fi
 wmakeLnInclude -u OpenFOAM
 wmakeLnInclude -u OSspecific/"${WM_OSTYPE:-POSIX}"
 
+# Update version info (as required)
+OpenFOAM/Alltouch -check 2>/dev/null
+
 OSspecific/"${WM_OSTYPE:-POSIX}"/Allwmake $targetType $*
 
 case "$WM_COMPILER" in
@@ -37,9 +40,6 @@ Mingw*)
     ;;
 *)
     Pstream/Allwmake $targetType $*
-
-    # Update version info (as required)
-    OpenFOAM/Alltouch -check 2>/dev/null
     ;;
 esac
 

src/ODE/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

src/OpenFOAM/Make/options

-/* Never self-link with WM_PROJECT == OpenFOAM */
-PROJECT_LIBS =
-
 EXE_INC = \
     -I$(OBJECTS_DIR)
 
 LIB_LIBS = \
     $(FOAM_LIBBIN)/libOSspecific.o
 
-ifeq ($(FOAM_LINK_DUMMY_PSTREAM),libo)
+ifeq (libo,$(FOAM_LINK_DUMMY_PSTREAM))
     LIB_LIBS += $(FOAM_LIBBIN)/dummy/libPstream.o
 else
     LIB_LIBS += -L$(FOAM_LIBBIN)/dummy -lPstream
@@ -17,3 +14,7 @@ endif
 EXE_INC += -DHAVE_LIBZ
 
 LIB_LIBS += -lz
+
+
+/* Project lib dependencies. Never self-link (WM_PROJECT == OpenFOAM) */
+PROJECT_LIBS =

src/Pstream/dummy/Make/options

-EXE_INC =
-
-LIB_LIBS =
+/* EXE_INC = */
+/* LIB_LIBS = */
 
+/* Project lib dependencies */
 PROJECT_LIBS = -L$(FOAM_LIBBIN) -lOpenFOAM

src/Pstream/mpi/Make/options

@@ -10,4 +10,5 @@ EXE_INC  = $(PFLAGS) $(PINC) $(c++LESSWARN)
 
 LIB_LIBS = $(PLIBS)
 
+/* Project lib dependencies */
 PROJECT_LIBS = -L$(FOAM_LIBBIN) -lOpenFOAM

src/dummyThirdParty/MGridGen/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

src/lagrangian/distributionModels/Make/options

-EXE_INC =
-
-LIB_LIBS =
+/* EXE_INC = */
+/* LIB_LIBS = */

src/lagrangian/molecularDynamics/molecularMeasurements/Make/options

-EXE_INC =
-
-LIB_LIBS =
+/* EXE_INC = */
+/* LIB_LIBS = */

src/parallel/decompose/ptscotchDecomp/Make/options

@@ -33,6 +33,6 @@ ifeq (,$(findstring windows,$(WM_OSTYPE)))
 endif
 
 /* May require librt, but scotch does not declare the dependency */
-ifeq ($(EXT_SO),.so)
+ifeq (.so,$(EXT_SO))
     LIB_LIBS += -lrt
 endif

src/parallel/decompose/scotchDecomp/Make/options

@@ -13,6 +13,6 @@ ifeq (,$(findstring windows,$(WM_OSTYPE)))
 endif
 
 /* May require librt, but scotch does not declare the dependency */
-ifeq ($(EXT_SO),.so)
+ifeq (.so,$(EXT_SO))
     LIB_LIBS += -lrt
 endif

src/rigidBodyDynamics/Make/options

-EXE_INC =
-
-LIB_LIBS =
+/* EXE_INC = */
+/* LIB_LIBS = */

src/thermophysicalModels/specie/Make/options

-EXE_INC =
-
-LIB_LIBS =
+/* EXE_INC = */
+/* LIB_LIBS = */

wmake/makefiles/general

@@ -59,7 +59,7 @@ PROJECT_INC     = \
     -I$(LIB_SRC)/$(WM_PROJECT)/lnInclude \
     -I$(LIB_SRC)/OSspecific/$(WM_OSTYPE)/lnInclude
 
-PROJECT_LIBS    = -l$(WM_PROJECT)
+PROJECT_LIBS    = -l$(WM_PROJECT) -ldl
 
 EXE_INC         =
 EXE_LIBS        =

wmake/rules/General/Amd/link-c++

 LINK_LIBS   = $(c++DBUG) -Wl,--as-needed
 
-LINKLIBSO   = $(CC) $(c++FLAGS) -shared
+LINKLIBSO   = $(CC) $(c++FLAGS) -shared \
+    $(FOAM_EXTRA_LDFLAGS)
 
-LINKEXE     = $(CC) $(c++FLAGS) -L$(FOAM_LIBBIN)/dummy -lPstream
+LINKEXE     = $(CC) $(c++FLAGS) \
+    -L$(FOAM_LIBBIN)/dummy -lPstream \
+    $(FOAM_EXTRA_LDFLAGS)

wmake/rules/General/Clang/link-c++

 LINK_LIBS   = $(c++DBUG)
 
-LINKLIBSO   = $(CC) $(c++FLAGS) -shared $(FOAM_EXTRA_LDFLAGS)
+LINKLIBSO   = $(CC) $(c++FLAGS) -shared \
+    $(FOAM_EXTRA_LDFLAGS)
 
-LINKEXE     = $(CC) $(c++FLAGS) -Xlinker --add-needed $(FOAM_EXTRA_LDFLAGS)
+LINKEXE     = $(CC) $(c++FLAGS) \
+    -Xlinker --add-needed \
+    $(FOAM_EXTRA_LDFLAGS)

wmake/rules/General/Clang/link-gold-c++

+LINK_LIBS   = $(c++DBUG)
+
+LINKLIBSO   = $(CC) $(c++FLAGS) -shared \
+    -fuse-ld=gold \
+    $(FOAM_EXTRA_LDFLAGS)
+
+LINKEXE     = $(CC) $(c++FLAGS) \
+    -fuse-ld=gold \
+    -L$(FOAM_LIBBIN)/dummy -lPstream \
+    $(FOAM_EXTRA_LDFLAGS)

wmake/rules/General/Gcc/link-gold-c++

 LINK_LIBS   = $(c++DBUG)
 
-LINKLIBSO   = $(CC) $(c++FLAGS) -shared -fuse-ld=gold
+LINKLIBSO   = $(CC) $(c++FLAGS) -shared \
+    -fuse-ld=gold \
+    $(FOAM_EXTRA_LDFLAGS)
 
-LINKEXE     = $(CC) $(c++FLAGS) -fuse-ld=gold -L$(FOAM_LIBBIN)/dummy -lPstream
+LINKEXE     = $(CC) $(c++FLAGS) \
+    -fuse-ld=gold \
+    -L$(FOAM_LIBBIN)/dummy -lPstream \
+    $(FOAM_EXTRA_LDFLAGS)

wmake/rules/General/Pgi/link-c++

 LINK_LIBS   = $(c++DBUG)
 
-LINKLIBSO   = $(CC) $(c++FLAGS) -shared $(FOAM_EXTRA_LDFLAGS)
+LINKLIBSO   = $(CC) $(c++FLAGS) -shared \
+    $(FOAM_EXTRA_LDFLAGS)
 
-LINKEXE     = $(CC) $(c++FLAGS) -Xlinker --add-needed $(FOAM_EXTRA_LDFLAGS)
+LINKEXE     = $(CC) $(c++FLAGS) \
+    -Xlinker --add-needed \
+    $(FOAM_EXTRA_LDFLAGS)

wmake/rules/General/transform

@@ -8,7 +8,7 @@ WMKDEP  := $(WMAKE_BIN)/wmkdepend    # 1. Ragel-based
 
 WMKDEP_FLAGS := -eWM_PROJECT_DIR -eWM_THIRD_PARTY_DIR
 
-ifneq ("$(WM_QUIET)","")
+ifneq ("","$(WM_QUIET)")
     E=@
     define QUIET_MESSAGE
         @echo "    $1: $2";

wmake/rules/darwin64Clang/general

 CPP        = cpp -traditional-cpp $(GFLAGS)
 
-PROJECT_LIBS = -l$(WM_PROJECT) -ldl
-
 include $(GENERAL_RULES)/standard
 ## include $(GENERAL_RULES)/Clang/openmp
 
@@ -10,9 +8,10 @@ include $(GENERAL_RULES)/standard
 COMP_OPENMP = -DUSE_OMP -Xpreprocessor -fopenmp
 LINK_OPENMP = -lomp
 # ----
-# Or disable
-# include $(GENERAL_RULES)/no-openmp
-# ----
+
+ifneq (,$(findstring ~openmp,$(WM_COMPILE_CONTROL)))
+    include $(GENERAL_RULES)/no-openmp
+endif
 
 include $(DEFAULT_RULES)/c
 include $(DEFAULT_RULES)/c++

wmake/rules/linux64Amd/general

 CPP        = cpp -traditional-cpp $(GFLAGS)
 
-PROJECT_LIBS = -l$(WM_PROJECT) -ldl
-
 include $(GENERAL_RULES)/standard
 include $(GENERAL_RULES)/no-openmp
 
 include $(DEFAULT_RULES)/c
 include $(DEFAULT_RULES)/c++
+
+# -----------------------------------------------------------------------------

wmake/rules/linux64Clang/c++

@@ -11,4 +11,10 @@ cxxtoo      = $(Ctoo)
 cctoo       = $(Ctoo)
 cpptoo      = $(Ctoo)
 
-include $(GENERAL_RULES)/Clang/link-c++
+ifneq (,$(findstring +gold,$(WM_COMPILE_CONTROL)))
+    include $(GENERAL_RULES)/Clang/link-gold-c++
+else
+    include $(GENERAL_RULES)/Clang/link-c++
+endif
+
+#------------------------------------------------------------------------------

wmake/rules/linux64Clang/general

 CPP        = cpp -traditional-cpp $(GFLAGS)
 
-PROJECT_LIBS = -l$(WM_PROJECT) -ldl
-
 include $(GENERAL_RULES)/standard
 include $(GENERAL_RULES)/Clang/openmp
 
+ifneq (,$(findstring ~openmp,$(WM_COMPILE_CONTROL)))
+    include $(GENERAL_RULES)/no-openmp
+endif
+
 include $(DEFAULT_RULES)/c
 include $(DEFAULT_RULES)/c++
+
+# -----------------------------------------------------------------------------

wmake/rules/linux64Cray/general

 CPP        = cpp -traditional-cpp $(GFLAGS)
 
-PROJECT_LIBS = -l$(WM_PROJECT) -ldl
-
 include $(GENERAL_RULES)/standard
-# include $(GENERAL_RULES)/Gcc/openmp
+## include $(GENERAL_RULES)/Gcc/openmp
+
+ifneq (,$(findstring ~openmp,$(WM_COMPILE_CONTROL)))
+    include $(GENERAL_RULES)/no-openmp
+endif
 
 include $(DEFAULT_RULES)/c
 include $(DEFAULT_RULES)/c++
+
+# -----------------------------------------------------------------------------

wmake/rules/linux64Gcc/c++

@@ -11,4 +11,10 @@ cxxtoo      = $(Ctoo)
 cctoo       = $(Ctoo)
 cpptoo      = $(Ctoo)
 
-include $(GENERAL_RULES)/Gcc/link-c++
+ifneq (,$(findstring +gold,$(WM_COMPILE_CONTROL)))
+    include $(GENERAL_RULES)/Gcc/link-gold-c++
+else
+    include $(GENERAL_RULES)/Gcc/link-c++
+endif
+
+#------------------------------------------------------------------------------

wmake/rules/linux64Gcc/general

 CPP        = cpp -traditional-cpp $(GFLAGS)
 
-PROJECT_LIBS = -l$(WM_PROJECT) -ldl
-
 include $(GENERAL_RULES)/standard
 include $(GENERAL_RULES)/Gcc/openmp
 
+ifneq (,$(findstring ~openmp,$(WM_COMPILE_CONTROL)))
+    include $(GENERAL_RULES)/no-openmp
+endif
+
 include $(DEFAULT_RULES)/c
 include $(DEFAULT_RULES)/c++
+
+#------------------------------------------------------------------------------

wmake/rules/linux64Icc/general

 CPP        = /lib/cpp -traditional-cpp $(GFLAGS)
 
-PROJECT_LIBS = -l$(WM_PROJECT) -ldl
-
 include $(GENERAL_RULES)/standard
 include $(GENERAL_RULES)/Icc/openmp
 
+ifneq (,$(findstring ~openmp,$(WM_COMPILE_CONTROL)))
+    include $(GENERAL_RULES)/no-openmp
+endif
+
 include $(DEFAULT_RULES)/c
 include $(DEFAULT_RULES)/c++
+
+# -----------------------------------------------------------------------------

wmake/rules/linux64Mingw/c++

@@ -19,7 +19,7 @@ LINK_LIBS   = $(c++DBUG)
 # Using "-Wl,--no-undefined,--enable-runtime-pseudo-reloc"
 # does not forgive undefined symbols during linking
 
-LINKLIBSO   = $(CC) $(c++FLAGS) \
+LINKLIBSO   = $(CC) $(c++FLAGS) -shared \
     -Wl,--output-def=$(LIB).def \
     -Wl,--out-implib=$(LIB).dll.a \
     -Wl,--no-undefined \
@@ -27,9 +27,10 @@ LINKLIBSO   = $(CC) $(c++FLAGS) \
     -Wl,--enable-auto-import \
     -Wl,--enable-auto-image-base \
     -Wl,--strip-all \
-    -shared
+    $(FOAM_EXTRA_LDFLAGS)
 
 LINKEXE     = $(CC) $(c++FLAGS) \
     -Wl,--enable-auto-import \
     -Wl,--strip-all \
-    -Wl,--force-exe-suffix
+    -Wl,--force-exe-suffix \
+    $(FOAM_EXTRA_LDFLAGS)

wmake/rules/linux64Mingw/general

@@ -6,7 +6,8 @@ LD      = x86_64-w64-mingw32-ld
 AR      = x86_64-w64-mingw32-ar
 RANLIB  = x86_64-w64-mingw32-ranlib
 
-PROJECT_LIBS = -l$(WM_PROJECT) -L$(FOAM_LIBBIN)/dummy -lPstream
+PROJECT_LIBS = -l$(WM_PROJECT) \
+    -L$(FOAM_LIBBIN)/dummy -lPstream
 
 include $(GENERAL_RULES)/standard
 

wmake/rules/linux64Pgi/general

 CPP        = cpp -traditional-cpp $(GFLAGS)
 
-PROJECT_LIBS = -l$(WM_PROJECT) -ldl
-
 include $(GENERAL_RULES)/standard
 ## include $(GENERAL_RULES)/Pgi/openmp
 
+ifneq (,$(findstring ~openmp,$(WM_COMPILE_CONTROL)))
+    include $(GENERAL_RULES)/no-openmp
+endif
+
 include $(DEFAULT_RULES)/c
 include $(DEFAULT_RULES)/c++
+
+# -----------------------------------------------------------------------------

wmake/rules/linuxARM64Arm/general

 CPP        = cpp -traditional-cpp $(GFLAGS)
 
-PROJECT_LIBS = -l$(WM_PROJECT) -ldl
-
 include $(GENERAL_RULES)/standard
 include $(GENERAL_RULES)/Clang/openmp
 
+ifneq (,$(findstring ~openmp,$(WM_COMPILE_CONTROL)))
+    include $(GENERAL_RULES)/no-openmp
+endif
+
 include $(DEFAULT_RULES)/c
 include $(DEFAULT_RULES)/c++
+
+# -----------------------------------------------------------------------------