When cross-compiling, for example for Android, ./configure will detect lzma and zstd setups from the build system, when it should be ignoring them. It should only look in the NDK and --prefix values. ``` $ sudo apt install liblzma-dev $ export host_triplet=armv7a-linux-androideabi $ export EXTERNAL_ROOT=`pwd`/external $ export platform=21 $ export CC=${host_triplet}${platform}-clang $ export PATH=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin:$PATH $ ./configure --host="$host_triplet" --enable-android --enable-static-libevent --with-libevent-dir=$EXTERNAL_ROOT --enable-static-openssl --with-openssl-dir=$EXTERNAL_ROOT --prefix=$EXTERNAL_ROOT [snip] CC src/lib/evloop/compat_libevent.o src/lib/compress/compress_lzma.c:24:18: fatal error: lzma.h: No such file or directory #include <lzma.h> ^ compilation terminated. ``` The workaround is to add `--disable-lzma --disable-zstd`.