Commit 5ccc1240 authored by Committed by Jean-Marc ValinBrowse files
Enable automake's "silent rules" if they are available.
Automake version 1.11 and above provide a build mode where each build command is replaced by a single-line annotation. Since autotools build lines for libraries typically each fill an entire terminal screen, this mode makes it easier to keep track of build progress, and warnings stand out more clearly. For debugging the build process, the old behaviour can be recovered by running 'make V=1' at bulid time, or by passing --disable-silent-rules to configure. Since Automake 1.11 is still very recent, we only invoke the AM_SILENT_RULES macro if it is defined, allowing fallback to the old behaviour under previous versions of automake.