Hi,
I try to compile FFTW 3.3.8 on Ubuntu 18.10 and get the following errors (note that I have remove some lines)
checking fcntl.h usability... no checking fcntl.h presence... yes configure: WARNING: fcntl.h: present but cannot be compiled configure: WARNING: fcntl.h: check for missing prerequisite headers? checking for fcntl.h... no checking fenv.h usability... no checking fenv.h presence... yes configure: WARNING: fenv.h: present but cannot be compiled configure: WARNING: fenv.h: check for missing prerequisite headers? checking for fenv.h... no checking limits.h usability... no checking limits.h presence... yes configure: WARNING: limits.h: present but cannot be compiled configure: WARNING: limits.h: check for missing prerequisite headers? checking for limits.h... no checking malloc.h usability... no checking malloc.h presence... yes configure: WARNING: malloc.h: present but cannot be compiled configure: WARNING: malloc.h: check for missing prerequisite headers? checking for malloc.h... no checking stddef.h usability... no checking stddef.h presence... yes configure: WARNING: stddef.h: present but cannot be compiled configure: WARNING: stddef.h: check for missing prerequisite headers? checking for stddef.h... no checking sys/time.h usability... no checking sys/time.h presence... yes configure: WARNING: sys/time.h: present but cannot be compiled configure: WARNING: sys/time.h: check for missing prerequisite headers? checking for sys/time.h... no checking altivec.h usability... no checking altivec.h presence... no checking for altivec.h... no checking for an ANSI C-conforming const... yes checking for inline... inline checking for size_t... no checking for uint32_t... no checking for uint64_t... no checking whether time.h and sys/time.h may both be included... no checking for long double... no checking for hrtime_t... no checking size of int... 0 checking size of unsigned int... 0 checking size of long... 0 checking size of unsigned long... 0 checking size of long long... 0 checking size of unsigned long long... 0 checking size of size_t... 0 checking size of ptrdiff_t... 0 checking for ptrdiff_t... no checking for uintptr_t... no checking size of void *... 0 checking size of float... 0 checking size of double... 0 checking size of fftw_r2r_kind... 0 configure: error: sizeof(fftw_r2r_kind) test failed
So essentially, something with respect to the system headers went terribly wrong.
Please note that I have updated to the more recent gcc compilers 8.2
icc version 19.0.1.144 (gcc version 8.2.0 compatibility)