configure: use XC_CONFIGURE_PREAMBLE early checks
authorYang Tse <yangsita@gmail.com>
Wed, 23 Jan 2013 12:54:08 +0000 (13:54 +0100)
committerYang Tse <yangsita@gmail.com>
Wed, 23 Jan 2013 13:29:00 +0000 (14:29 +0100)
commit5c28a64e5714918b9067b6146671ec85de4c414f
treefe80b0e2d5b1f638acfaf85ab7f7f6f1897ba686
parent8c6c42a67f2384328fe924f69a054ad7771ba931
configure: use XC_CONFIGURE_PREAMBLE early checks

Some basic checks we make were placed early enough in generated
configure script when using autoconf 2.5X versions. Newer autoconf
versions expand these checks much further into the configure script,
rendering them useless. Using XC_CONFIGURE_PREAMBLE fixes placement
of early intended checks across all our autoconf supported versions.
configure.ac
m4/curl-override.m4
m4/curl-system.m4 [deleted file]