No rule to make target '/bin/mkrename' (and similar) when cross-compiling for Android

[alexeyr]

I've tried to follow "Importing SLEEF into your project" section of https://sleef.org/compile.xhtml:

set(ANDROID_FLAGS -DCMAKE_TOOLCHAIN_FILE=${PROJECT_SOURCE_DIR}/thirdparty/Android/Sdk/ndk/21.0.6113669/build/cmake/android.toolchain.cmake -DANDROID_ABI=arm64-v8a -DANDROID_NATIVE_API_LEVEL=24)

externalproject_add(libsleef
  SOURCE_DIR "${PROJECT_SOURCE_DIR}/thirdparty/sleef"
  CMAKE_ARGS ${ANDROID_FLAGS} -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/sleef -DSLEEF_SHOW_CONFIG=true -DCMAKE_BUILD_TYPE=Release -DBUILD_TESTS=false -DBUILD_DFT=false
)

This produces

[ 56%] No download step for 'libsleef'
[ 59%] No patch step for 'libsleef'
[ 62%] No update step for 'libsleef'
[ 65%] Performing configure step for 'libsleef'
CMake Deprecation Warning at CMakeLists.txt:24 (cmake_policy):
  The OLD behavior for policy CMP0066 will be removed from a future version
  of CMake.

  The cmake-policies(7) manual explains that the OLD behaviors of all
  policies are deprecated and that a policy should be set to OLD only under
  specific short-term circumstances.  Projects should be ported to the NEW
  behavior and not rely on setting a policy to OLD.


-- Check for working C compiler: /mnt/e/MyProgramming/fused-transformer-mobile-1/thirdparty/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/linux-x86_64/bin/clang
-- Check for working C compiler: /mnt/e/MyProgramming/fused-transformer-mobile-1/thirdparty/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/linux-x86_64/bin/clang - works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of long double
-- Check size of long double - done
-- Performing Test COMPILER_SUPPORTS_LONG_DOUBLE
-- Performing Test COMPILER_SUPPORTS_LONG_DOUBLE - Success
-- Performing Test COMPILER_SUPPORTS_FLOAT128
-- Performing Test COMPILER_SUPPORTS_FLOAT128 - Failed
-- Performing Test COMPILER_SUPPORTS_SVE
-- Performing Test COMPILER_SUPPORTS_SVE - Failed
-- Found OpenMP_C: -fopenmp=libomp (found version "3.1") 
-- Found OpenMP: TRUE (found version "3.1")  
-- Performing Test COMPILER_SUPPORTS_OPENMP
-- Performing Test COMPILER_SUPPORTS_OPENMP - Success
-- Performing Test COMPILER_SUPPORTS_WEAK_ALIASES
-- Performing Test COMPILER_SUPPORTS_WEAK_ALIASES - Success
-- Performing Test COMPILER_SUPPORTS_BUILTIN_MATH
-- Performing Test COMPILER_SUPPORTS_BUILTIN_MATH - Success
-- Performing Test COMPILER_SUPPORTS_SYS_GETRANDOM
-- Performing Test COMPILER_SUPPORTS_SYS_GETRANDOM - Success
-- Configuring build for SLEEF-v3.5.0
   Target system: Android-1
   Target processor: aarch64
   Host system: Linux-4.4.0-18362-Microsoft
   Host processor: x86_64
   Detected C compiler: Clang @ /mnt/e/MyProgramming/fused-transformer-mobile-1/thirdparty/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/linux-x86_64/bin/clang
   Crosscompiling SLEEF.
   Native build dir: 
-- Using option `-Wall -Wno-unused -Wno-attributes -Wno-unused-result -ffp-contract=off -fno-math-errno -fno-trapping-math` to compile libsleef
-- Building shared libs : ON
-- MPFR : LIB_MPFR-NOTFOUND
-- GMP : LIBGMP-NOTFOUND
-- RT : 
-- FFTW3 : LIBFFTW3-NOTFOUND
-- OPENSSL : 
-- SDE : SDE_COMMAND-NOTFOUND
-- RUNNING_ON_TRAVIS : 0
-- COMPILER_SUPPORTS_OPENMP : 1
-- A version of SLEEF compatible  with libm and libmvec in GNU libc will be produced (sleefgnuabi.so)
-- Configuring done
-- Generating done
CMake Warning:
  Manually-specified variables were not used by the project:

    BUILD_INLINE_HEADERS


-- Build files have been written to: /mnt/e/MyProgramming/fused-transformer-mobile-1/build/libsleef-prefix/src/libsleef-build
[ 68%] Performing build step for 'libsleef'
make[5]: *** No rule to make target '/bin/mkrename_gnuabi', needed by 'src/libm/include/renameadvsimd_gnuabi.h'.  Stop.
CMakeFiles/Makefile2:571: recipe for target 'src/libm/CMakeFiles/sleefgnuabiadvsimddp.dir/all' failed
make[4]: *** [src/libm/CMakeFiles/sleefgnuabiadvsimddp.dir/all] Error 2
make[4]: *** Waiting for unfinished jobs....
Scanning dependencies of target alias_advsimd.h_generated
Scanning dependencies of target renameADVSIMD.h_generated
Scanning dependencies of target common
Scanning dependencies of target headers
Scanning dependencies of target renamePUREC_SCALAR.h_generated
Scanning dependencies of target renameADVSIMDNOFMA.h_generated
Scanning dependencies of target renamePURECFMA_SCALAR.h_generated
make[5]: *** No rule to make target '/bin/mkalias', needed by 'src/libm/include/alias_advsimd.h'.  Stop.
CMakeFiles/Makefile2:239: recipe for target 'src/libm/CMakeFiles/alias_advsimd.h_generated.dir/all' failed
make[4]: *** [src/libm/CMakeFiles/alias_advsimd.h_generated.dir/all] Error 2
make[5]: *** No rule to make target '/bin/mkrename', needed by 'src/libm/include/renameadvsimdnofma.h'.  Stop.
make[5]: *** No rule to make target '/bin/mkrename', needed by 'src/libm/include/renamepurecfma_scalar.h'.  Stop.
CMakeFiles/Makefile2:374: recipe for target 'src/libm/CMakeFiles/renamePURECFMA_SCALAR.h_generated.dir/all' failed
make[4]: *** [src/libm/CMakeFiles/renamePURECFMA_SCALAR.h_generated.dir/all] Error 2
CMakeFiles/Makefile2:266: recipe for target 'src/libm/CMakeFiles/renameADVSIMDNOFMA.h_generated.dir/all' failed
make[4]: *** [src/libm/CMakeFiles/renameADVSIMDNOFMA.h_generated.dir/all] Error 2
make[5]: *** No rule to make target '/bin/mkrename', needed by 'include/sleef.h'.  Stop.
CMakeFiles/Makefile2:293: recipe for target 'src/libm/CMakeFiles/headers.dir/all' failed
make[4]: *** [src/libm/CMakeFiles/headers.dir/all] Error 2
make[5]: *** No rule to make target '/bin/mkrename', needed by 'src/libm/include/renamepurec_scalar.h'.  Stop.
CMakeFiles/Makefile2:401: recipe for target 'src/libm/CMakeFiles/renamePUREC_SCALAR.h_generated.dir/all' failed
make[4]: *** [src/libm/CMakeFiles/renamePUREC_SCALAR.h_generated.dir/all] Error 2
make[5]: *** No rule to make target '/bin/mkrename', needed by 'src/libm/include/renameadvsimd.h'.  Stop.
CMakeFiles/Makefile2:347: recipe for target 'src/libm/CMakeFiles/renameADVSIMD.h_generated.dir/all' failed
make[4]: *** [src/libm/CMakeFiles/renameADVSIMD.h_generated.dir/all] Error 2
[  2%] Building C object src/common/CMakeFiles/common.dir/common.c.o
[  2%] Built target common
Makefile:160: recipe for target 'all' failed
make[3]: *** [all] Error 2
CMakeFiles/libsleef.dir/build.make:131: recipe for target 'libsleef-prefix/src/libsleef-stamp/libsleef-build' failed
make[2]: *** [libsleef-prefix/src/libsleef-stamp/libsleef-build] Error 2
CMakeFiles/Makefile2:274: recipe for target 'CMakeFiles/libsleef.dir/all' failed
make[1]: *** [CMakeFiles/libsleef.dir/all] Error 2
Makefile:103: recipe for target 'all' failed
make: *** [all] Error 2

Without ${ANDROID_FLAGS} SLEEF builds successfully, but of course can't be used on Android.

[shibatch]

Hello,
Android is not directly supported at this point.
I think you can generate llvm bitcode on a linux computer, and bring it to Android.

[alexeyr]

Issue #249 seems related. I'll also try to adapt the script linked there...

[alexeyr]

The pure CMake approach is

set(SLEEF_SOURCE_DIR "${PROJECT_SOURCE_DIR}/thirdparty/sleef")
set(SLEEF_BINARY_DIR "${SLEEF_SOURCE_DIR}/build/${ICU_TARGET}")
file(MAKE_DIRECTORY ${SLEEF_BINARY_DIR})
set(SLEEF_COMMON_ARGS -DCMAKE_BUILD_TYPE=Release -DSLEEF_SHOW_CONFIG=false -DBUILD_SHARED_LIBS=false -DBUILD_DFT=false -DBUILD_GNUABI_LIBS=false -DBUILD_TESTS=false -DDISABLE_FLOAT128=true -DDISABLE_LONG_DOUBLE=true)
if (ANDROID)
  set(SLEEF_NATIVE_BINARY_DIR "${SLEEF_SOURCE_DIR}/build/native")
  file(MAKE_DIRECTORY ${SLEEF_NATIVE_BINARY_DIR})
  externalproject_add(sleef
      SOURCE_DIR ${SLEEF_SOURCE_DIR}
      BINARY_DIR ${SLEEF_BINARY_DIR}
      CONFIGURE_COMMAND ${CMAKE_COMMAND} -GNinja ${SLEEF_COMMON_ARGS} -S ${SLEEF_SOURCE_DIR} -B ${SLEEF_NATIVE_BINARY_DIR} && ${CMAKE_COMMAND} -GNinja -DCMAKE_EXPORT_COMPILE_COMMANDS=true ${SLEEF_COMMON_ARGS} ${ANDROID_FLAGS} -DNATIVE_BUILD_DIR=${SLEEF_NATIVE_BINARY_DIR} -S ${SLEEF_SOURCE_DIR} -B ${SLEEF_BINARY_DIR}
      BUILD_COMMAND ${CMAKE_COMMAND} --build ${SLEEF_NATIVE_BINARY_DIR} --target mkrename && ${CMAKE_COMMAND} --build ${SLEEF_NATIVE_BINARY_DIR} --target mkdisp && ${CMAKE_COMMAND} --build ${SLEEF_NATIVE_BINARY_DIR} --target mkalias && ${CMAKE_COMMAND} --build ${SLEEF_NATIVE_BINARY_DIR} --target addSuffix && ${CMAKE_COMMAND} --build ${SLEEF_BINARY_DIR}
      INSTALL_COMMAND "")
else()
  externalproject_add(sleef
      SOURCE_DIR ${SLEEF_SOURCE_DIR}
      BINARY_DIR ${SLEEF_BINARY_DIR}
      CMAKE_ARGS -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} ${SLEEF_COMMON_ARGS}
      INSTALL_COMMAND "")
endif()
add_library(sleef_lib STATIC IMPORTED)
set_property(TARGET sleef_lib PROPERTY IMPORTED_LOCATION ${SLEEF_BINARY_DIR}/lib/libsleef.a)
add_dependencies(sleef_lib sleef)

[alexeyr]

${CMAKE_COMMAND} --build ${SLEEF_NATIVE_BINARY_DIR} --target mkrename && ${CMAKE_COMMAND} --build ${SLEEF_NATIVE_BINARY_DIR} --target mkdisp && ${CMAKE_COMMAND} --build ${SLEEF_NATIVE_BINARY_DIR} --target mkalias && ${CMAKE_COMMAND} --build ${SLEEF_NATIVE_BINARY_DIR} --target addSuffix

can be simplified to

${CMAKE_COMMAND} --build ${SLEEF_NATIVE_BINARY_DIR} --target mkrename mkdisp mkalias addSuffix

but this requires CMake 3.15+, and NDK comes only with CMake 3.10.2 for now.