> - The `silent-rules' option enables Linux kernel-style silent build output. > This option requires the widely supported but non-POSIX `make' feature > of recursive variable expansion,
We are talking about constructs like this: ====== Makefile ====== all : echo $(XY_V) XY_V = $(XY_$(V)) XY_0 = silent XY_1 = verbose XY_ = unknown ====================== I think this is supported by POSIX. POSIX [1] says: "Macros can appear anywhere in the makefile.". > Is anyone aware of specific vendor make programs which fail with > automake 1.11's new `silent-rules' option? The 'make' programs from Solaris 2.4 (1994) and from AIX 4.3, IRIX 6.5, HP-UX 11.00, OSF/1 4.0 all support this feature. Bruno [1] http://www.opengroup.org/onlinepubs/9699919799/utilities/make.html