Hi I'm seeing build failures on RHEL7 when trying to build 2.47.0 - RHEL8 seems to be fine CC t/unit-tests/clar/clar.o CC t/unit-tests/unit-test.o t/unit-tests/clar/clar.c: In function ‘clar_time_now’: t/unit-tests/clar/clar.c:274:18: error: storage size of ‘tz’ isn’t known 274 | struct timezone tz; | ^~ t/unit-tests/clar/clar.c: In function ‘clar_parse_args’: t/unit-tests/clar/clar.c:543:47: warning: implicit declaration of function ‘strdup’; did you mean ‘strcmp’? [-Wimplicit-function-declaration] 543 | _clar.summary_filename = *(argument + 2) ? strdup(argument + 2) : NULL; | ^~~~~~ | strcmp t/unit-tests/clar/clar.c:543:68: warning: pointer/integer type mismatch in conditional expression 543 | _clar.summary_filename = *(argument + 2) ? strdup(argument + 2) : NULL; | ^ t/unit-tests/clar/clar.c: In function ‘clar_test_init’: t/unit-tests/clar/clar.c:569:26: warning: assignment to ‘char *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion] 569 | _clar.summary_filename = strdup(summary_env); | ^ t/unit-tests/clar/clar.c:573:26: warning: assignment to ‘char *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion] 573 | _clar.summary_filename = strdup("summary.xml"); | ^ t/unit-tests/clar/clar.c: In function ‘clar__fail’: t/unit-tests/clar/clar.c:692:22: warning: assignment to ‘char *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion] 692 | error->description = strdup(description); | ^ In file included from t/unit-tests/clar/clar.c:838: t/unit-tests/clar/clar/sandbox.h: In function ‘build_sandbox_path’: t/unit-tests/clar/clar/sandbox.h:138:6: warning: implicit declaration of function ‘mkdtemp’ [-Wimplicit-function-declaration] 138 | if (mkdtemp(_clar_path) == NULL) | ^~~~~~~ t/unit-tests/clar/clar/sandbox.h:138:26: warning: comparison between pointer and integer 138 | if (mkdtemp(_clar_path) == NULL) | ^~ In file included from t/unit-tests/clar/clar.c:92: t/unit-tests/clar/clar/fs.h: In function ‘fs_copy’: t/unit-tests/clar/clar/fs.h:446:16: warning: implicit declaration of function ‘lstat’; did you mean ‘fstat’? [-Wimplicit-function-declaration] 446 | cl_must_pass_(lstat(source, &source_st), "Failed to stat copy source"); | ^~~~~ t/unit-tests/clar/clar.h:89:49: note: in definition of macro ‘cl_must_pass_’ 89 | #define cl_must_pass_(expr, desc) clar__assert((expr) >= 0, __FILE__, __func__, __LINE__, "Function call failed: " #expr, desc, 1) | ^~~~ make: *** [t/unit-tests/clar/clar.o] Error 1 make: *** Waiting for unfinished jobs.... Have I done something silly or is it just too old? Thanks Mike