https://bugs.gentoo.org/718872
--- a/tests/run-disasm-x86-64.sh
+++ b/tests/run-disasm-x86-64.sh
@@ -22,7 +22,7 @@ case "`uname -m`" in
   x86_64)
     tempfiles testfile45.o
     testfiles testfile45.S testfile45.expect
-    gcc -m64 -c -o testfile45.o testfile45.S
+    ${CC-gcc} -m64 -c -o testfile45.o testfile45.S
     testrun_compare ${abs_top_builddir}/src/objdump -d testfile45.o < testfile45.expect
     ;;
 esac
--- a/tests/run-disasm-x86.sh
+++ b/tests/run-disasm-x86.sh
@@ -22,7 +22,7 @@ case "`uname -m`" in
   x86_64 | i?86 )
     tempfiles testfile44.o
     testfiles testfile44.S testfile44.expect
-    gcc -m32 -c -o testfile44.o testfile44.S
+    ${CC-gcc} -m32 -c -o testfile44.o testfile44.S
     testrun_compare ${abs_top_builddir}/src/objdump -d testfile44.o < testfile44.expect
     ;;
 esac
--- a/tests/run-strip-g.sh
+++ b/tests/run-strip-g.sh
@@ -25,7 +25,7 @@
 tempfiles a.out strip.out debug.out readelf.out
 
 echo Create debug a.out.
-echo "int main() { return 1; }" | gcc -g -xc -
+echo "int main() { return 1; }" | ${CC-gcc} -g -xc -
 
 echo strip -g to file with debug file
 testrun ${abs_top_builddir}/src/strip -g -o strip.out -f debug.out ||
--- a/tests/run-strip-nothing.sh
+++ b/tests/run-strip-nothing.sh
@@ -23,7 +23,7 @@
 tempfiles a.out strip.out debug.out
 
 # Create no-debug a.out.
-echo "int main() { return 1; }" | gcc -s -xc -
+echo "int main() { return 1; }" | ${CC-gcc} -s -xc -
 
 # strip to file
 testrun ${abs_top_builddir}/src/strip -g -o strip.out ||