configure: autotools compatibility fixes - step I
authorYang Tse <yangsita@gmail.com>
Wed, 23 Jan 2013 15:44:25 +0000 (16:44 +0100)
committerYang Tse <yangsita@gmail.com>
Wed, 23 Jan 2013 15:44:25 +0000 (16:44 +0100)
commit037656b2d89f7bb8fb697afff5b67c3a9b1c1d87
tree66814cfa81c3d8ba67d7b4e5322ec5d29f7ce742
parentdc6c864108e16ad5821cadcf67d8e8faaab9443c
configure: autotools compatibility fixes - step I

Fix proper macro expansion order across autotools versions for
C compiler and preprocessor program checks.
configure.ac
m4/cares-compilers.m4
m4/cares-confopts.m4
m4/xc-cc-check.m4 [new file with mode: 0644]
m4/xc-val-flgs.m4 [new file with mode: 0644]