We recently discovered that since R 3.3.0, on our CentOS 6 based cluster, R gets built without TIFF support. The last version where TIFF support was built, was 3.2.5.
We have libtiff 3.9.4 installed:
$ rpm -q libtiff-devel
libtiff-devel-3.9.4-21.el6_8.x86_64
(Since CentOS 6 is so old, we have manually installed newer versions of
some dependencies: curl 7.46.0, zlib 1.2.8, bzip2 1.0.6, xz 5.2.2 and
pcre 8.38.)
We configure R like this:
BLAS=--with-blas='-mkl=parallel'
LAPACK=--with-lapack
./configure --prefix=$destdir "$BLAS" "$LAPACK" --enable-BLAS-shlib
--enable-R-shlib
(and build with Intel compilers.)
The tiff-related output of the configure script in R 3.2.5 was
$ grep -i tiff _log_3.2.5
checking tiffio.h usability... yes
checking tiffio.h presence... yes
checking for tiffio.h... yes
checking for TIFFOpen in -ltiff... yes
Additional capabilities: PNG, JPEG, TIFF, NLS, cairo
Beginning with R 3.3.0, it was just
$ grep -i tiff _log_3.3.0
Capabilities skipped: TIFF, ICU
(This has been the output for all versions we've installed since 3.3.0.)
I looked at the configure script, and in 3.2.5, the tests for libtiff
starts like this (I've adjusted the indentation):
if test "${use_libtiff}" = yes; then
for ac_header in tiffio.h
do :
ac_fn_c_check_header_mongrel "$LINENO" "tiffio.h"
"ac_cv_header_tiffio_h" "$ac_includes_default"
if test "x$ac_cv_header_tiffio_h" = xyes; then :
cat >>confdefs.h <<_ACEOF
#define HAVE_TIFFIO_H 1
_ACEOF
From 3.3.0 on, it starts like this (with indentation adjusted):
if test "${use_libtiff}" = yes; then
mod=
## pkg-config support was introduced in libtiff 4.0.0
## I guess the module name might change in future, so
## program defensively here.
if "${PKGCONF}" --exists libtiff-4; then
mod=libtiff-4
fi
if test -n "${mod}"; then
save_CPPFLAGS=${CPPFLAGS}
TIF_CPPFLAGS=`"${PKGCONF}" --cflags ${mod}`
CPPFLAGS="${CPPFLAGS} ${TIF_CPPFLAGS}"
for ac_header in tiffio.h
do :
ac_fn_c_check_header_mongrel "$LINENO" "tiffio.h"
"ac_cv_header_tiffio_h" "$ac_includes_default"
if test "x$ac_cv_header_tiffio_h" = xyes; then :
cat >>confdefs.h <<_ACEOF
#define HAVE_TIFFIO_H 1
_ACEOF
And all the rest of the tests for libtiff are within the "if test -n
"${mod}"; then" branch. As I read it, this means that if you don't have
libtiff >= 4.0.0 installed, the tests for libtiff will not be run, and
support for TIFF disabled.
On the other hand, Appendix A.2 "Useful libraries and programs" in
https://cran.r-project.org/doc/manuals/r-release/R-admin.html says
"The bitmapped graphics devices jpeg(), png() and tiff() need the
appropriate headers and libraries installed: jpeg (version 6b or later,
or libjpeg-turbo) or libpng (version 1.2.7 or later) and zlib or libtiff
(any recent version – 3.9.[4-7] and 4.0.[2-10] have been tested)
respectively."
which seems to imply that libtiff 3.9.4 should be fine.
Is there a bug in the configure script, is the "R Installation and
Administration" not up to date, or is it me that misunderstands
something here?
--
Regards,
Bjørn-Helge Mevik
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