If the m4 version isn't recognized at all, just say so
authorFabian Keil <fk@fabiankeil.de>
Thu, 19 Aug 2010 13:50:32 +0000 (15:50 +0200)
committerDaniel Stenberg <daniel@haxx.se>
Sat, 28 Aug 2010 20:51:22 +0000 (22:51 +0200)
commitb0873cb6577a83a3db8ca59b381ec0ae266a7b15
treee4afa6d3ae76112472f0f3f24030be7c3759f49a
parent19d2bf4ee445759141ec440f529c1a3f7391de9e
If the m4 version isn't recognized at all, just say so

'm4 version  found. You need a GNU m4 installed!' is a bit confusing.
buildconf