diff --git a/libc/arch-arm/arm.mk b/libc/arch-arm/arm.mk
index ccdf5a1d0..0e9beba6a 100644
--- a/libc/arch-arm/arm.mk
+++ b/libc/arch-arm/arm.mk
@@ -64,13 +64,8 @@ libc_bionic_src_files_arm += \
     arch-arm/bionic/sigsetjmp.S \
     arch-arm/bionic/syscall.S \
 
-# These are used by the static and dynamic versions of the libc
-# respectively.
-libc_arch_static_src_files_arm := \
-    arch-arm/bionic/exidx_static.c \
-
-libc_arch_dynamic_src_files_arm := \
-    arch-arm/bionic/exidx_dynamic.c \
+libc_arch_static_src_files_arm := arch-arm/bionic/exidx_static.c
+libc_arch_dynamic_src_files_arm := arch-arm/bionic/exidx_dynamic.c
 
 ## CPU variant specific source files
 ifeq ($(strip $(TARGET_$(my_2nd_arch_prefix)CPU_VARIANT)),)
@@ -85,8 +80,7 @@ libc_common_additional_dependencies += $(cpu_variant_mk)
 
 cpu_variant_mk :=
 
-##########################################
-# crt-related
+
 libc_crt_target_cflags_arm := \
     -I$(LOCAL_PATH)/arch-arm/include \
     -mthumb-interwork
diff --git a/libc/arch-arm64/arm64.mk b/libc/arch-arm64/arm64.mk
index 4b47c6d17..a64594917 100644
--- a/libc/arch-arm64/arm64.mk
+++ b/libc/arch-arm64/arm64.mk
@@ -53,14 +53,7 @@ libc_bionic_src_files_arm64 := \
     arch-arm64/bionic/syscall.S \
     arch-arm64/bionic/vfork.S \
 
-# These are used by the static and dynamic versions of the libc
-# respectively.
-libc_arch_static_src_files_arm64 :=
 
-libc_arch_dynamic_src_files_arm64 :=
-
-##########################################
-# crt-related
 libc_crt_target_cflags_arm64 := \
     -I$(LOCAL_PATH)/arch-arm64/include
 
diff --git a/libc/arch-mips/mips.mk b/libc/arch-mips/mips.mk
index 4e007e50c..530c33f5a 100644
--- a/libc/arch-mips/mips.mk
+++ b/libc/arch-mips/mips.mk
@@ -71,15 +71,7 @@ libc_bionic_src_files_mips += \
     arch-mips/string/memset.S \
     arch-mips/string/mips_strlen.c \
 
-# These are used by the static and dynamic versions of the libc
-# respectively.
-libc_arch_static_src_files_mips :=
 
-libc_arch_dynamic_src_files_mips :=
-
-
-##########################################
-# crt-related
 libc_crt_target_cflags_mips := \
     $($(my_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) \
     -I$(LOCAL_PATH)/arch-mips/include
diff --git a/libc/arch-mips64/mips64.mk b/libc/arch-mips64/mips64.mk
index 6977d6ad2..96ee66db7 100644
--- a/libc/arch-mips64/mips64.mk
+++ b/libc/arch-mips64/mips64.mk
@@ -59,12 +59,7 @@ libc_bionic_src_files_mips64 += bionic/memcpy.c
 libc_bionic_src_files_mips64 += bionic/memset.c
 libc_bionic_src_files_mips64 += string/strlen.c
 
-libc_arch_static_src_files_mips64 :=
 
-libc_arch_dynamic_src_files_mips64 :=
-
-##########################################
-# crt-related
 libc_crt_target_cflags_mips64 := \
     $($(my_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) \
     -I$(LOCAL_PATH)/arch-mips/include
diff --git a/libc/arch-x86/x86.mk b/libc/arch-x86/x86.mk
index a39fcf2e2..b024acbf8 100644
--- a/libc/arch-x86/x86.mk
+++ b/libc/arch-x86/x86.mk
@@ -84,15 +84,7 @@ libc_bionic_src_files_x86 += \
     arch-x86/string/sse2-wcslen-atom.S \
     arch-x86/string/sse2-wcscmp-atom.S \
 
-# These are used by the static and dynamic versions of the libc
-# respectively.
-libc_arch_static_src_files_x86 :=
 
-libc_arch_dynamic_src_files_x86 :=
-
-
-##########################################
-# crt-related
 libc_crt_target_cflags_x86 := \
     -m32 \
     -I$(LOCAL_PATH)/arch-x86/include
diff --git a/libc/arch-x86_64/x86_64.mk b/libc/arch-x86_64/x86_64.mk
index 5d2b05bf0..44831a6d9 100644
--- a/libc/arch-x86_64/x86_64.mk
+++ b/libc/arch-x86_64/x86_64.mk
@@ -53,14 +53,7 @@ libc_bionic_src_files_x86_64 := \
     arch-x86_64/bionic/vfork.S \
     string/memcmp16.c \
 
-# These are used by the static and dynamic versions of the libc
-# respectively.
-libc_arch_static_src_files_x86_64 :=
 
-libc_arch_dynamic_src_files_x86_64 :=
-
-##########################################
-# crt-related
 libc_crt_target_cflags_x86_64 += \
     -m64 \
     -I$(LOCAL_PATH)/arch-x86_64/include