The m4/ directory below contains various m4 macros used by different packages in the OpenWrt feed. From GNU gettext: Library linking and rpath helper macros. lib-ld.m4 lib-link.m4 lib-prefix.m4 Integer data type test macros. intmax.m4 wint_t.m4 inttypes-pri.m4 uintmax_t.m4 stdint_h.m4 intdiv0.m4 inttypes_h.m4 Program test macro. progtest.m4 GNU libc version test macros. glibc2.m4 glibc21.m4 From UCL and LZO: Compiler ACC conformance testing macros. mfx_acc.m4 mfx_cppflags.m4 mfx_limits.m4 From OSSP-JS: Test macros for va_copy() implementations. va_copy.m4 From libmikmod: Feature test macros for the Enlightment Sound Daemon. esd.m4 From libdnet: Feature test macros for socket api implementations. dnet.m4 From FLAC: XMMS feature detection macros. xmms.m4 From ao: Directory expansion macro for Automake. as-ac-expand.m4 From OpenWrt: Always disable GTK docs. fake-gtk-doc-check.m4 Provide intltool.m4 stubs to allow for autoreconf. fake-intltool.m4