diff --git a/configure.ac b/configure.ac index 8d6774f23..029953e81 100644 --- a/configure.ac +++ b/configure.ac @@ -637,6 +637,33 @@ AC_CHECK_FUNCS([setns pivot_root sethostname unshare rand_r confstr faccessat ge # - STRERROR_R_CHAR_P if it returns char * AC_FUNC_STRERROR_R +# Check if "%m" is supported by printf and Co +AC_MSG_CHECKING([%m format]) +AC_TRY_RUN([ +#include +int main(void) +{ + char msg[256]; + int rc; + + rc = snprintf(msg, sizeof(msg), "%m\n"); + if ((rc > 1) && (msg[0] != '%')) + { + return 0; + } + else + { + return 1; + } +}], +[fmt_m=yes], [fmt_m=no]) +if test "x$fmt_m" = "xyes"; then + AC_DEFINE([HAVE_M_FORMAT], 1, [Have %m format]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + # Check for some functions AC_CHECK_LIB(pthread, main) AC_CHECK_FUNCS(statvfs)