On 9/7/21 6:11 AM, Lucy Phipps wrote: > /home/builder/.termux-build/_cache/android-r21d-api-24-v5/bin/../sysroot/usr/include/malloc.h:168:37: > error: unknown type name 'FILE' > int malloc_info(int __must_be_zero, FILE* __fp) __INTRODUCED_IN(23); Thank you for reporting this problem. I attempted to fix this in Gnulib (see my recent email to you, archived at ). If you have the time, please give the fix a try. You can do that either by building from the latest Git version of gzip on Savannah, or (this is probably easier) by building from the attached tarball which I just now generated from Savannah.