diff --git a/regression/ansi-c/arch_flags_mcpu_bad/object.intel b/regression/ansi-c/arch_flags_mcpu_bad/object.intel
index e32d04e4c56..11593f7dcf1 100644
Binary files a/regression/ansi-c/arch_flags_mcpu_bad/object.intel and b/regression/ansi-c/arch_flags_mcpu_bad/object.intel differ
diff --git a/regression/ansi-c/arch_flags_mcpu_good/object.arm b/regression/ansi-c/arch_flags_mcpu_good/object.arm
index f0a1397b8d6..9ac75ab47a9 100644
Binary files a/regression/ansi-c/arch_flags_mcpu_good/object.arm and b/regression/ansi-c/arch_flags_mcpu_good/object.arm differ
diff --git a/regression/ansi-c/arch_flags_mcpu_good/test.desc b/regression/ansi-c/arch_flags_mcpu_good/test.desc
index c7daf68b878..141e5a37063 100644
--- a/regression/ansi-c/arch_flags_mcpu_good/test.desc
+++ b/regression/ansi-c/arch_flags_mcpu_good/test.desc
@@ -12,12 +12,17 @@ The object file 'object.arm' was compiled from 'source.c' with goto-cc
 along with an ARM cross-compiler on a 64-bit platform with the following
 command line:
 
-  goto-cc --native-compiler=arm-none-eabi-gcc -mcpu=cortex-a15 -c source.c
+  goto-cc -o object.arm --native-compiler=arm-none-eabi-gcc -mcpu=cortex-a15 -c source.c
 
-On Ubuntu, you can get a suitable compiler using:
+To regenerate object.arm on an x86_64 machine, you will need to install
+an ARM-32 cross compiler and pass the name of that compiler to the
+--native-compiler flag. On Ubuntu, you can get a suitable compiler
+using:
 
   sudo apt install gcc-arm-none-eabi
 
+which will install arm-none-eabi-gcc (amongst other things).
+
 preproc.i is already pre-processed so that it can be linked in without
 needing to invoke a pre-processor from a cross-compile toolchain on your
 local machine. Linking it together with the ARM object file, while
diff --git a/regression/ansi-c/arch_flags_mthumb_bad/object.intel b/regression/ansi-c/arch_flags_mthumb_bad/object.intel
index 72136c8ae3c..fc2d521766a 100644
Binary files a/regression/ansi-c/arch_flags_mthumb_bad/object.intel and b/regression/ansi-c/arch_flags_mthumb_bad/object.intel differ
diff --git a/regression/ansi-c/arch_flags_mthumb_good/object.arm b/regression/ansi-c/arch_flags_mthumb_good/object.arm
index eb41c683911..86bbebb1240 100644
Binary files a/regression/ansi-c/arch_flags_mthumb_good/object.arm and b/regression/ansi-c/arch_flags_mthumb_good/object.arm differ
diff --git a/regression/ansi-c/arch_flags_mthumb_good/test.desc b/regression/ansi-c/arch_flags_mthumb_good/test.desc
index 9f56b40997e..6bed1f3ccc9 100644
--- a/regression/ansi-c/arch_flags_mthumb_good/test.desc
+++ b/regression/ansi-c/arch_flags_mthumb_good/test.desc
@@ -12,12 +12,17 @@ file 'object.arm' was compiled from 'source.c' with goto-cc along with
 an ARM cross-compiler on a 64-bit platform with the following command
 line:
 
-  goto-cc --native-compiler=arm-none-eabi-gcc -mthumb -c source.c
+  goto-cc -o object.arm --native-compiler=arm-none-eabi-gcc -mthumb -c source.c
 
-On Ubuntu, you can get a suitable compiler using:
+To regenerate object.arm on an x86_64 machine, you will need to install
+an ARM-32 cross compiler and pass the name of that compiler to the
+--native-compiler flag. On Ubuntu, you can get a suitable compiler
+using:
 
   sudo apt install gcc-arm-none-eabi
 
+which will install arm-none-eabi-gcc (amongst other things).
+
 preproc.i is already pre-processed so that it can be linked in without
 needing to invoke a pre-processor from a cross-compile toolchain on your
 local machine. Linking it together with the ARM object file, while