diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/configure.in b/configure.in index 5adf536ff3e..5b475227ec0 100644 --- a/configure.in +++ b/configure.in @@ -674,8 +674,11 @@ AC_CHECK_LIB(resolv, main) AC_CHECK_LIB([[unix]], main) AC_SEARCH_LIBS(crypt, crypt) AC_CHECK_LIB(bind, __inet_ntoa) -dnl only consider libz to be present if we find <zlib.h> as well -AC_CHECK_HEADER(zlib.h, [ +dnl Only consider libz to be present if we find <zlib.h> as well; +dnl furthermore, check that <zlib.h> defines z_streamp (versions before +dnl about 1.0.4 did not). While we could work around the lack of z_streamp, +dnl it seems unwise to encourage people to use such old zlib versions... +AC_EGREP_HEADER(z_streamp, zlib.h, [ AC_CHECK_LIB(z, inflate) ]) |