Commit 6f97842 started using libfetch's conditional GET. This requires libfetch to be version 2.21 or greater. Change configure.ac to check for the existence of the last_modified field in the url struct, which was introduced with libfetch 2.21. Signed-off-by: Henning Garus <henning.garus@gmail.com> --- configure.ac | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/configure.ac b/configure.ac index b2164b9..40d8e13 100644 --- a/configure.ac +++ b/configure.ac @@ -142,7 +142,12 @@ if test "x$internaldownload" = "xyes" ; then AC_MSG_RESULT(yes) AC_DEFINE([INTERNAL_DOWNLOAD], , [Use internal download library]) # Check for a download library if it was actually requested - AC_CHECK_LIB([fetch], [fetchParseURL], , + AC_CHECK_LIB([fetch], [fetchParseURL], + # Check if libfetch supports conditional GET + # (version >=2.21, struct url has member last_modified) + AC_CHECK_MEMBER(struct url.last_modified, , + AC_MSG_ERROR([libfetch must be version 2.21 or greater]), + [#include <fetch.h>] ), AC_MSG_ERROR([libfetch is needed to compile with internal download support]) ) else AC_MSG_RESULT(no) -- 1.6.4.1