The getpass function is not available on all systems; and not necessarily declared in unistd.h, as expected by the sensitive-1 analyzer test.
Since this is a compile-only test, it doesn't really matter if the function is defined in the system libraries. All we need is a declaration, to avoid warnings from calling an undeclared function. This patch adds the declaration, in a way that is most unlikely to conflict with any existing declaration. Regstrapped on x86_64-linux-gnu, also tested on arm-vxworks7r2. Ok to install? for gcc/testsuite/ChangeLog * gcc.dg/analyzer/sensitive-1.c: Declare getpass. --- gcc/testsuite/gcc.dg/analyzer/sensitive-1.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/gcc/testsuite/gcc.dg/analyzer/sensitive-1.c b/gcc/testsuite/gcc.dg/analyzer/sensitive-1.c index 81144af620edf..c66af9276174f 100644 --- a/gcc/testsuite/gcc.dg/analyzer/sensitive-1.c +++ b/gcc/testsuite/gcc.dg/analyzer/sensitive-1.c @@ -6,6 +6,11 @@ #include <string.h> +/* Declare getpass, in case unistd doesn't declare it. + Parenthesize it, in case it's a macro. + Don't use a prototype, to avoid const mismatches. */ +extern char *(getpass) (); + char test_1 (FILE *logfile) { char *password = getpass (">"); /* { dg-message "\\(1\\) sensitive value acquired here" } */ -- Alexandre Oliva, happy hacker https://FSFLA.org/blogs/lxo/ Free Software Activist GNU Toolchain Engineer Vim, Vi, Voltei pro Emacs -- GNUlius Caesar