Error when cross-compiling from Linux to Windows: src/gentables/make_tables.exe: No such file or directory

[realnc]

FluidSynth version

Git master and 2.0.2

Current behavior

When cross-compiling from Linux to Windows using MXE (https://mxe.cc), compilation fails with:

[  1%] Performing install step for 'gentables'
/bin/sh: /home/realnc/tmp/fluidsynth/build/src/gentables/make_tables.exe: No such file or directory

Steps to reproduce

Install and build the MXE toolchain ("make cc" should suffice), and then build Fluidsynth with:

i686-w64-mingw32.static-cmake
make

Other information

The issue is because of this line in src/CMakeLists.txt:

INSTALL_COMMAND ${CMAKE_CURRENT_BINARY_DIR}/gentables/make_tables${CMAKE_EXECUTABLE_SUFFIX} "${CMAKE_BINARY_DIR}/"

${CMAKE_EXECUTABLE_SUFFIX} is .exe, but when cross-compiling make_tables is a Linux binary without the .exe suffix.

cmake invocation output:

$ i686-w64-mingw32.static-cmake ../
== Using MXE wrapper: /home/realnc/opt/mxe/usr/bin/i686-w64-mingw32.static-cmake
     - cmake version 3.10.0
     - warnings for unused CMAKE_POLICY_DEFAULT variables can be ignored
== Using MXE toolchain: /home/realnc/opt/mxe/usr/i686-w64-mingw32.static/share/cmake/mxe-conf.cmake
== Using MXE runresult: /home/realnc/opt/mxe/usr/share/cmake/modules/TryRunResults.cmake
== Adding "-DCMAKE_BUILD_TYPE=Release"
loading initial cache file /home/realnc/opt/mxe/usr/share/cmake/modules/TryRunResults.cmake
-- The C compiler identification is GNU 8.2.0
-- Check for working C compiler: /home/realnc/opt/mxe/usr/bin/i686-w64-mingw32.static-gcc
-- Check for working C compiler: /home/realnc/opt/mxe/usr/bin/i686-w64-mingw32.static-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Checking whether system has ANSI C header files
-- Looking for 8 include files dlfcn.h, ..., float.h
-- Looking for 8 include files dlfcn.h, ..., float.h - not found
-- ANSI C header files - not found
-- Looking for include file unistd.h
-- Looking for include file unistd.h - found
-- Looking for DIR in sys/stat.h;sys/types.h;dirent.h
-- Looking for DIR in sys/stat.h;sys/types.h;dirent.h - found
-- Looking for string.h
-- Looking for string.h - found
-- Looking for stdlib.h
-- Looking for stdlib.h - found
-- Looking for stdio.h
-- Looking for stdio.h - found
-- Looking for math.h
-- Looking for math.h - found
-- Looking for errno.h
-- Looking for errno.h - found
-- Looking for stdarg.h
-- Looking for stdarg.h - found
-- Looking for memory.h
-- Looking for memory.h - found
-- Looking for sys/mman.h
-- Looking for sys/mman.h - not found
-- Looking for sys/time.h
-- Looking for sys/time.h - found
-- Looking for sys/ioctl.h
-- Looking for sys/ioctl.h - not found
-- Looking for fcntl.h
-- Looking for fcntl.h - found
-- Looking for sys/socket.h
-- Looking for sys/socket.h - not found
-- Looking for netinet/in.h
-- Looking for netinet/in.h - not found
-- Looking for netinet/tcp.h
-- Looking for netinet/tcp.h - not found
-- Looking for arpa/inet.h
-- Looking for arpa/inet.h - not found
-- Looking for limits.h
-- Looking for limits.h - found
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for signal.h
-- Looking for signal.h - found
-- Looking for getopt.h
-- Looking for getopt.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Performing Test _have_inline
-- Performing Test _have_inline - Success
-- Performing Test _have_vla
-- Performing Test _have_vla - Success
-- Check if the system is big endian
-- Searching 16 bit integer
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of unsigned short
-- Check size of unsigned short - done
-- Using unsigned short
-- Check if the system is big endian - little endian
-- Looking for windows.h
-- Looking for windows.h - found
-- Looking for io.h
-- Looking for io.h - found
-- Looking for dsound.h
-- Looking for dsound.h - found
-- Looking for include files windows.h, mmsystem.h
-- Looking for include files windows.h, mmsystem.h - found
-- Looking for inet_ntop
-- Looking for inet_ntop - not found
-- Found clang-tidy
-- Found PkgConfig: /home/realnc/opt/mxe/usr/bin/i686-w64-mingw32.static-pkg-config (found version "0.28") 
-- Checking for modules 'glib-2.0>=2.6.5;gthread-2.0>=2.6.5'
--   Found glib-2.0, version 2.50.2
--   Found gthread-2.0, version 2.50.2
-- Checking for module 'sndfile>=1.0.0'
--   Found sndfile, version 1.0.28
-- Checking for module 'sndfile>=1.0.18'
--   Found sndfile, version 1.0.28
-- Checking for module 'libpulse-simple>=0.9.8'
--   Package libpulse-simple was not found in the pkg-config search path.
Perhaps you should add the directory containing `libpulse-simple.pc'
to the PKG_CONFIG_PATH environment variable
Package 'libpulse-simple', required by 'world', not found
-- Checking for module 'jack'
--   Package jack was not found in the pkg-config search path.
Perhaps you should add the directory containing `jack.pc'
to the PKG_CONFIG_PATH environment variable
Package 'jack', required by 'world', not found
-- Checking for module 'dbus-1>=1.0.0'
--   Found dbus-1, version 1.13.6
-- Looking for ladspa.h
-- Looking for ladspa.h - not found
-- Could NOT find READLINE (missing: READLINE_INCLUDE_DIR READLINE_LIBRARIES) 
-- Found OpenMP 201511
-- Found Doxygen: /usr/bin/doxygen (found version "1.8.14") found components:  doxygen dot 

**************************************************************
Summary:
Build type:            Release
Install Prefix:        /home/realnc/opt/mxe/usr/i686-w64-mingw32.static
libsndfile:            yes (with ogg vorbis support)
D-Bus:                 yes
PulseAudio:            no
JACK:                  no
ALSA:                  no
PortAudio:             no
OSS:                   no
MidiShare:             no
CoreAudio:             no
CoreMIDI:              no
Windows:               yes
DSound:                yes
WinMidi support:       yes
LADSPA support:        no
LASH support:          no
OS/2 DART support:     no
Audio to file driver:  yes
NETWORK Support :      yes
IPV6 Support :         no
Readline:              no
Samples type=float:    no (using double)
Profiling:             no
OpenMP 4.0:            yes
Multi-thread support   yes
Debug:                 no
Trap on FPE (debug):   no
Check FPE (debug):     no
**************************************************************


-- Configuring done
-- Generating done
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_POLICY_DEFAULT_CMP0017
    CMAKE_POLICY_DEFAULT_CMP0020


-- Build files have been written to: /home/realnc/tmp/fluidsynth/build

[derselbst]

It's intended that make_tables is a native binary. But, as you correctly noted, we don't seem to import it correctly. As workaround, remove the ${CMAKE_EXECUTABLE_SUFFIX} from the line you've provided and try again. In every case (success or failure), pls. provide the full & verbose build log (I'm interested in it).

[realnc]

As workaround, remove the ${CMAKE_EXECUTABLE_SUFFIX} from the line you've provided and try again.

I did that already, and gets it past the error. It then runs into another error, which I reported previously but then closed it (#475). I'll reopen it later and add build logs.

I did that this way to avoid having two separate issues in the same bug report.