* installing to library ‘/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages’
* installing *source* package ‘fftw’ ...
** package ‘fftw’ successfully unpacked and MD5 sums checked
** using staged installation
checking for gcc... clang-18
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether clang-18 accepts -g... yes
checking for clang-18 option to enable C11 features... none needed
checking how to run the C preprocessor... clang-18 -E
checking for gcc... (cached) clang-18
checking whether the compiler supports GNU C... (cached) yes
checking whether clang-18 accepts -g... (cached) yes
checking for clang-18 option to enable C11 features... (cached) none needed
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for FFTW... yes
configure: creating ./config.status
config.status: creating src/Makevars
** libs
using C compiler: ‘Debian clang version 18.1.4 (1)’
make[1]: Entering directory '/tmp/RtmplYyNwq/R.INSTALL3025ea13677659/fftw/src'
clang-18 -I"/home/hornik/tmp/R.check/r-devel-clang/Work/build/include" -DNDEBUG -I/usr/local/include   -I/usr/local/include -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c fftw.c -o fftw.o
clang-18 -shared -L/home/hornik/tmp/R.check/r-devel-clang/Work/build/lib -Wl,-O1 -o fftw.so fftw.o -lfftw3 -L/home/hornik/tmp/R.check/r-devel-clang/Work/build/lib -lR
make[1]: Leaving directory '/tmp/RtmplYyNwq/R.INSTALL3025ea13677659/fftw/src'
make[1]: Entering directory '/tmp/RtmplYyNwq/R.INSTALL3025ea13677659/fftw/src'
make[1]: Leaving directory '/tmp/RtmplYyNwq/R.INSTALL3025ea13677659/fftw/src'
installing to /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/00LOCK-fftw/00new/fftw/libs
** R
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
** building package indices
** testing if installed package can be loaded from temporary location
** checking absolute paths in shared objects and dynamic libraries
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* creating tarball
packaged installation of ‘fftw’ as ‘fftw_1.0-8_R_x86_64-pc-linux-gnu.tar.gz’
* DONE (fftw)