Re: [PATCH] maintainer-makefiles: provide AC_PROG_SED for older autoconf

Eric Blake wrote in : > * m4/gnulib-common.m4 (AC_PROG_SED): Copy from newer autoconf. There's a misuse of AC_CACHE_CHECK here: when a config.cache is in use, the second time the test is run (in a different configure run), the v

[PATCH] maintainer-makefiles: provide AC_PROG_SED for older autoconf

Pavel Hrdina reported build failures on RHEL 5, where autoconf 2.59 is still the default, and predates the introduction of AC_PROG_SED. This version is copied from autoconf 2.69, but with lots of constructs open-coded because of macros not being available in 2.59; I tested that the result selects