diff --git a/sys/pic32/Makefile.kconf b/sys/pic32/Makefile.kconf
index f092782..5ecea92 100644
--- a/sys/pic32/Makefile.kconf
+++ b/sys/pic32/Makefile.kconf
@@ -3,19 +3,19 @@
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = $(LLVMBIN)/clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
 CC              =  -mabi=o32 -mfloat-abi=soft \
                   -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
-CC              = $(LLVMBIN)/clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
                   ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
-CPP             = $(LLVMBIN)/clang-cpp
+CPP             = $(LLVMBIN)clang-cpp
 LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = $(LLVMBIN)/llvm-size
-OBJCOPY         = $(LLVMBIN)/llvm-objcopy
-OBJDUMP         = $(LLVMBIN)/llvm-objdump
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/baremetal/Makefile b/sys/pic32/baremetal/Makefile
index 5fc6d6e..aadde66 100644
--- a/sys/pic32/baremetal/Makefile
+++ b/sys/pic32/baremetal/Makefile
@@ -18,20 +18,19 @@ LDSCRIPT = "baremetal/script.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/gcc-config.mk b/sys/pic32/clang-config.mk
similarity index 100%
rename from sys/pic32/gcc-config.mk
rename to sys/pic32/clang-config.mk
diff --git a/sys/pic32/duinomite-emega/Makefile b/sys/pic32/duinomite-emega/Makefile
index b0f7e72..45e797c 100644
--- a/sys/pic32/duinomite-emega/Makefile
+++ b/sys/pic32/duinomite-emega/Makefile
@@ -27,20 +27,19 @@ LDSCRIPT = "maximite/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/duinomite/Makefile b/sys/pic32/duinomite/Makefile
index e4fa976..320e84f 100644
--- a/sys/pic32/duinomite/Makefile
+++ b/sys/pic32/duinomite/Makefile
@@ -40,20 +40,19 @@ LDSCRIPT = "maximite/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/explorer16/Makefile b/sys/pic32/explorer16/Makefile
index 4f76960..5783903 100644
--- a/sys/pic32/explorer16/Makefile
+++ b/sys/pic32/explorer16/Makefile
@@ -28,20 +28,19 @@ LDSCRIPT = "baremetal/script.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/fubarino/Makefile b/sys/pic32/fubarino/Makefile
index a35bd27..f2af71c 100644
--- a/sys/pic32/fubarino/Makefile
+++ b/sys/pic32/fubarino/Makefile
@@ -27,20 +27,19 @@ LDSCRIPT = "max32/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/max32/Makefile b/sys/pic32/max32/Makefile
index bd0eb5d..946b394 100644
--- a/sys/pic32/max32/Makefile
+++ b/sys/pic32/max32/Makefile
@@ -27,20 +27,19 @@ LDSCRIPT = "max32/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/maximite-color/Makefile b/sys/pic32/maximite-color/Makefile
index ee1d756..a7ac220 100644
--- a/sys/pic32/maximite-color/Makefile
+++ b/sys/pic32/maximite-color/Makefile
@@ -26,20 +26,19 @@ LDSCRIPT = "maximite-color/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/maximite/Makefile b/sys/pic32/maximite/Makefile
index bf41556..53c2849 100644
--- a/sys/pic32/maximite/Makefile
+++ b/sys/pic32/maximite/Makefile
@@ -26,20 +26,19 @@ LDSCRIPT = "maximite/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/mmb-mx7/Makefile b/sys/pic32/mmb-mx7/Makefile
index afea736..9e78b8f 100644
--- a/sys/pic32/mmb-mx7/Makefile
+++ b/sys/pic32/mmb-mx7/Makefile
@@ -30,20 +30,19 @@ LDSCRIPT = "mmb-mx7/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/picadillo/Makefile b/sys/pic32/picadillo/Makefile
index 09c6c9e..3626ce1 100644
--- a/sys/pic32/picadillo/Makefile
+++ b/sys/pic32/picadillo/Makefile
@@ -26,20 +26,19 @@ LDSCRIPT = "max32/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/pinguino-micro/Makefile b/sys/pic32/pinguino-micro/Makefile
index f545484..aeda789 100644
--- a/sys/pic32/pinguino-micro/Makefile
+++ b/sys/pic32/pinguino-micro/Makefile
@@ -26,20 +26,19 @@ LDSCRIPT = "maximite/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/sdxl/Makefile b/sys/pic32/sdxl/Makefile
index 9752905..96d460a 100644
--- a/sys/pic32/sdxl/Makefile
+++ b/sys/pic32/sdxl/Makefile
@@ -26,20 +26,19 @@ LDSCRIPT = "max32/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/snadpic/Makefile b/sys/pic32/snadpic/Makefile
index 4104a54..f5b038e 100644
--- a/sys/pic32/snadpic/Makefile
+++ b/sys/pic32/snadpic/Makefile
@@ -26,20 +26,19 @@ LDSCRIPT = "maximite/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/starter-kit/Makefile b/sys/pic32/starter-kit/Makefile
index 71aa999..9c1fd38 100644
--- a/sys/pic32/starter-kit/Makefile
+++ b/sys/pic32/starter-kit/Makefile
@@ -26,20 +26,19 @@ LDSCRIPT = "baremetal/script.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/ubw32/Makefile b/sys/pic32/ubw32/Makefile
index 069619f..e7a776d 100644
--- a/sys/pic32/ubw32/Makefile
+++ b/sys/pic32/ubw32/Makefile
@@ -29,20 +29,19 @@ LDSCRIPT = "ubw32/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..
diff --git a/sys/pic32/wf32/Makefile b/sys/pic32/wf32/Makefile
index 10d6819..d6e8784 100644
--- a/sys/pic32/wf32/Makefile
+++ b/sys/pic32/wf32/Makefile
@@ -40,20 +40,19 @@ LDSCRIPT = "max32/bootloader.ld"
 #
 # DEBUG is set to -g by kconfig if debugging is requested (kconfig -g).
 #
-include ../gcc-config.mk
+include ../clang-config.mk
 
-AS              = ${MIPS_GCC_PREFIX}as ${DEBUG} -mips32r2 -EL
-CC              = ${MIPS_GCC_PREFIX}gcc ${DEBUG} -mips32r2 -EL -nostdinc -fno-builtin -Werror -Wall
-CPP             = ${MIPS_GCC_PREFIX}cpp
-LD              = ${MIPS_GCC_PREFIX}gcc -mips32r2 -EL
+AS              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 ${DEBUG}
+CC              =  -mabi=o32 -mfloat-abi=soft \
+                  -nostdinc -fshort-double -fomit-frame-pointer -finline-hint-functions -I$(TOPSRC)/include
+CC              = $(LLVMBIN)clang -target mipsel -mcpu=mips32r2 -mabi=o32 -mfloat-abi=soft \
+                  ${DEBUG} -nostdinc -fno-builtin -Werror -Wall
+CPP             = $(LLVMBIN)clang-cpp
+LD              = /usr/lib/llvm-12/bin/ld.lld -m elf32ltsmip
 LDFLAGS         = -nostdlib -T ../${LDSCRIPT} -Wl,-Map=$(basename $@).map
-SIZE            = ${MIPS_GCC_PREFIX}size
-OBJCOPY         = ${MIPS_GCC_PREFIX}objcopy
-OBJDUMP         = ${MIPS_GCC_PREFIX}objdump
-
-ifneq (${MIPS_GCC_FORMAT},)
-    LDFLAGS     += -Wl,--oformat=${MIPS_GCC_FORMAT}
-endif
+SIZE            = $(LLVMBIN)llvm-size
+OBJCOPY         = $(LLVMBIN)llvm-objcopy
+OBJDUMP         = $(LLVMBIN)llvm-objdump
 
 # sources are located via $S relative to the compilation directory
 S               = ../..