To make this repo compatible with MSYS2 mingw and other OS (Linux, macOS, BSDs)

[mcuee]

One way to fix avrdudes/avrdude#1653 is to use this repo for avrdude, not only for MSVC build, but also for other OS.

• libelf deprecation on macOS avrdude#1653

[mcuee]

It actually build under MSYS2 mingw.

MINGW64 /c/work/avr/avrdude_test/avrdude_depend/libelf
$ cmake -B build
-- Building for: Ninja
-- The C compiler identification is GNU 13.2.0
-- The CXX compiler identification is GNU 13.2.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/msys64/mingw64/bin/cc.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/msys64/mingw64/bin/c++.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done (4.1s)
-- Generating done (0.0s)
-- Build files have been written to: C:/work/avr/avrdude_test/avrdude_depend/libelf/build

xiaof@LAPTOP-913SIMUD MINGW64 /c/work/avr/avrdude_test/avrdude_depend/libelf
$ cmake --build build
[4/56] Building C object CMakeFiles/libelf.dir/src/32.newphdr.c.obj
C:/work/avr/avrdude_test/avrdude_depend/libelf/src/32.newphdr.c: In function 'gelf_newphdr':
C:/work/avr/avrdude_test/avrdude_depend/libelf/src/32.newphdr.c:115:12: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  115 |     return (unsigned long)_elf_newphdr(elf, phnum, elf->e_class);
      |            ^
[6/56] Building C object CMakeFiles/libelf.dir/src/32.newehdr.c.obj
C:/work/avr/avrdude_test/avrdude_depend/libelf/src/32.newehdr.c: In function 'gelf_newehdr':
C:/work/avr/avrdude_test/avrdude_depend/libelf/src/32.newehdr.c:77:12: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
   77 |     return (unsigned long)_elf_newehdr(elf, cls);
      |            ^
[56/56] Linking C static library liblibelf.a

[mcuee]

It also works under macOS. Tested under macOS 14.3.1, Mac Mini M1 2020.

But take note currently it only build static link library.

mcuee@mcuees-Mac-mini libelf % cmake -B build
-- The C compiler identification is AppleClang 15.0.0.15000100
-- The CXX compiler identification is AppleClang 15.0.0.15000100
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /Library/Developer/CommandLineTools/usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /Library/Developer/CommandLineTools/usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done (0.8s)
-- Generating done (0.0s)
-- Build files have been written to: /Users/mcuee/build/avr/libelf/build

mcuee@mcuees-Mac-mini libelf % cmake --build build 
[  1%] Building C object CMakeFiles/libelf.dir/src/32.fsize.c.o
[  3%] Building C object CMakeFiles/libelf.dir/src/32.getehdr.c.o
[  5%] Building C object CMakeFiles/libelf.dir/src/32.getphdr.c.o
[  7%] Building C object CMakeFiles/libelf.dir/src/32.getshdr.c.o
[  8%] Building C object CMakeFiles/libelf.dir/src/32.newehdr.c.o
[ 10%] Building C object CMakeFiles/libelf.dir/src/32.newphdr.c.o
[ 12%] Building C object CMakeFiles/libelf.dir/src/32.xlatetof.c.o
[ 14%] Building C object CMakeFiles/libelf.dir/src/64.xlatetof.c.o
[ 16%] Building C object CMakeFiles/libelf.dir/src/assert.c.o
[ 17%] Building C object CMakeFiles/libelf.dir/src/begin.c.o
/Users/mcuee/build/avr/libelf/src/begin.c:271:26: warning: passing arguments to 'lseek' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
    else if ((off = lseek(fd, (off_t)0, SEEK_END)) == (off_t)-1
                         ^
1 warning generated.
[ 19%] Building C object CMakeFiles/libelf.dir/src/checksum.c.o
[ 21%] Building C object CMakeFiles/libelf.dir/src/cntl.c.o
[ 23%] Building C object CMakeFiles/libelf.dir/src/cook.c.o
[ 25%] Building C object CMakeFiles/libelf.dir/src/data.c.o
[ 26%] Building C object CMakeFiles/libelf.dir/src/end.c.o
[ 28%] Building C object CMakeFiles/libelf.dir/src/errmsg.c.o
[ 30%] Building C object CMakeFiles/libelf.dir/src/errno.c.o
[ 32%] Building C object CMakeFiles/libelf.dir/src/fill.c.o
[ 33%] Building C object CMakeFiles/libelf.dir/src/flag.c.o
[ 35%] Building C object CMakeFiles/libelf.dir/src/gelfehdr.c.o
[ 37%] Building C object CMakeFiles/libelf.dir/src/gelfphdr.c.o
[ 39%] Building C object CMakeFiles/libelf.dir/src/gelfshdr.c.o
[ 41%] Building C object CMakeFiles/libelf.dir/src/gelftrans.c.o
[ 42%] Building C object CMakeFiles/libelf.dir/src/getarhdr.c.o
[ 44%] Building C object CMakeFiles/libelf.dir/src/getaroff.c.o
[ 46%] Building C object CMakeFiles/libelf.dir/src/getarsym.c.o
[ 48%] Building C object CMakeFiles/libelf.dir/src/getbase.c.o
[ 50%] Building C object CMakeFiles/libelf.dir/src/getdata.c.o
[ 51%] Building C object CMakeFiles/libelf.dir/src/getident.c.o
[ 53%] Building C object CMakeFiles/libelf.dir/src/getscn.c.o
[ 55%] Building C object CMakeFiles/libelf.dir/src/hash.c.o
[ 57%] Building C object CMakeFiles/libelf.dir/src/input.c.o
/Users/mcuee/build/avr/libelf/src/input.c:38:10: warning: passing arguments to 'read' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
        n = read(fd, buffer + done, len - done);
                ^
/Users/mcuee/build/avr/libelf/src/input.c:67:11: warning: passing arguments to 'lseek' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
        if (lseek(elf->e_fd, (off_t)off, SEEK_SET) != (off_t)off) {
                 ^
2 warnings generated.
[ 58%] Building C object CMakeFiles/libelf.dir/src/kind.c.o
[ 60%] Building C object CMakeFiles/libelf.dir/src/memset.c.o
[ 62%] Building C object CMakeFiles/libelf.dir/src/ndxscn.c.o
[ 64%] Building C object CMakeFiles/libelf.dir/src/newdata.c.o
[ 66%] Building C object CMakeFiles/libelf.dir/src/newscn.c.o
[ 67%] Building C object CMakeFiles/libelf.dir/src/next.c.o
[ 69%] Building C object CMakeFiles/libelf.dir/src/nextscn.c.o
[ 71%] Building C object CMakeFiles/libelf.dir/src/nlist.c.o
/Users/mcuee/build/avr/libelf/src/nlist.c:237:16: warning: passing arguments to 'open' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
        if ((fd = open(filename, FILE_OPEN_MODE)) != -1) {
                      ^
/Users/mcuee/build/avr/libelf/src/nlist.c:242:11: warning: passing arguments to 'close' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
            close(fd);
                 ^
2 warnings generated.
[ 73%] Building C object CMakeFiles/libelf.dir/src/opt.delscn.c.o
[ 75%] Building C object CMakeFiles/libelf.dir/src/rand.c.o
[ 76%] Building C object CMakeFiles/libelf.dir/src/rawdata.c.o
[ 78%] Building C object CMakeFiles/libelf.dir/src/rawfile.c.o
[ 80%] Building C object CMakeFiles/libelf.dir/src/strptr.c.o
[ 82%] Building C object CMakeFiles/libelf.dir/src/swap64.c.o
[ 83%] Building C object CMakeFiles/libelf.dir/src/update.c.o
/Users/mcuee/build/avr/libelf/src/update.c:893:11: warning: passing arguments to 'write' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
        n = write(fd, buffer + done, len - done);
                 ^
/Users/mcuee/build/avr/libelf/src/update.c:955:11: warning: passing arguments to 'lseek' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
        if (lseek(fd, (off_t)0, SEEK_SET)) {
                 ^
2 warnings generated.
[ 85%] Building C object CMakeFiles/libelf.dir/src/verdef_32_tof.c.o
[ 87%] Building C object CMakeFiles/libelf.dir/src/verdef_32_tom.c.o
[ 89%] Building C object CMakeFiles/libelf.dir/src/verdef_64_tof.c.o
[ 91%] Building C object CMakeFiles/libelf.dir/src/verdef_64_tom.c.o
[ 92%] Building C object CMakeFiles/libelf.dir/src/version.c.o
[ 94%] Building C object CMakeFiles/libelf.dir/src/x.elfext.c.o
[ 96%] Building C object CMakeFiles/libelf.dir/src/x.movscn.c.o
[ 98%] Building C object CMakeFiles/libelf.dir/src/x.remscn.c.o
[100%] Linking C static library liblibelf.a
[100%] Built target libelf

[mcuee]

Linux (Ubuntu 20.04) build

mcuee@UbuntuSwift3 ~/build/avr/avrdude_libelf (windows)$ cmake -B build
-- The C compiler identification is GNU 9.4.0
-- The CXX compiler identification is GNU 9.4.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done (0.3s)
-- Generating done (0.0s)
-- Build files have been written to: /home/mcuee/build/avr/avrdude_libelf/build

mcuee@UbuntuSwift3 ~/build/avr/avrdude_libelf (windows)$ cmake --build build
[  1%] Building C object CMakeFiles/libelf.dir/src/32.fsize.c.o
[  3%] Building C object CMakeFiles/libelf.dir/src/32.getehdr.c.o
[  5%] Building C object CMakeFiles/libelf.dir/src/32.getphdr.c.o
[  7%] Building C object CMakeFiles/libelf.dir/src/32.getshdr.c.o
[  8%] Building C object CMakeFiles/libelf.dir/src/32.newehdr.c.o
[ 10%] Building C object CMakeFiles/libelf.dir/src/32.newphdr.c.o
[ 12%] Building C object CMakeFiles/libelf.dir/src/32.xlatetof.c.o
[ 14%] Building C object CMakeFiles/libelf.dir/src/64.xlatetof.c.o
[ 16%] Building C object CMakeFiles/libelf.dir/src/assert.c.o
[ 17%] Building C object CMakeFiles/libelf.dir/src/begin.c.o
[ 19%] Building C object CMakeFiles/libelf.dir/src/checksum.c.o
[ 21%] Building C object CMakeFiles/libelf.dir/src/cntl.c.o
[ 23%] Building C object CMakeFiles/libelf.dir/src/cook.c.o
[ 25%] Building C object CMakeFiles/libelf.dir/src/data.c.o
[ 26%] Building C object CMakeFiles/libelf.dir/src/end.c.o
[ 28%] Building C object CMakeFiles/libelf.dir/src/errmsg.c.o
[ 30%] Building C object CMakeFiles/libelf.dir/src/errno.c.o
[ 32%] Building C object CMakeFiles/libelf.dir/src/fill.c.o
[ 33%] Building C object CMakeFiles/libelf.dir/src/flag.c.o
[ 35%] Building C object CMakeFiles/libelf.dir/src/gelfehdr.c.o
[ 37%] Building C object CMakeFiles/libelf.dir/src/gelfphdr.c.o
[ 39%] Building C object CMakeFiles/libelf.dir/src/gelfshdr.c.o
[ 41%] Building C object CMakeFiles/libelf.dir/src/gelftrans.c.o
[ 42%] Building C object CMakeFiles/libelf.dir/src/getarhdr.c.o
[ 44%] Building C object CMakeFiles/libelf.dir/src/getaroff.c.o
[ 46%] Building C object CMakeFiles/libelf.dir/src/getarsym.c.o
[ 48%] Building C object CMakeFiles/libelf.dir/src/getbase.c.o
[ 50%] Building C object CMakeFiles/libelf.dir/src/getdata.c.o
[ 51%] Building C object CMakeFiles/libelf.dir/src/getident.c.o
[ 53%] Building C object CMakeFiles/libelf.dir/src/getscn.c.o
[ 55%] Building C object CMakeFiles/libelf.dir/src/hash.c.o
[ 57%] Building C object CMakeFiles/libelf.dir/src/input.c.o
[ 58%] Building C object CMakeFiles/libelf.dir/src/kind.c.o
[ 60%] Building C object CMakeFiles/libelf.dir/src/memset.c.o
[ 62%] Building C object CMakeFiles/libelf.dir/src/ndxscn.c.o
[ 64%] Building C object CMakeFiles/libelf.dir/src/newdata.c.o
[ 66%] Building C object CMakeFiles/libelf.dir/src/newscn.c.o
[ 67%] Building C object CMakeFiles/libelf.dir/src/next.c.o
[ 69%] Building C object CMakeFiles/libelf.dir/src/nextscn.c.o
[ 71%] Building C object CMakeFiles/libelf.dir/src/nlist.c.o
[ 73%] Building C object CMakeFiles/libelf.dir/src/opt.delscn.c.o
[ 75%] Building C object CMakeFiles/libelf.dir/src/rand.c.o
[ 76%] Building C object CMakeFiles/libelf.dir/src/rawdata.c.o
[ 78%] Building C object CMakeFiles/libelf.dir/src/rawfile.c.o
[ 80%] Building C object CMakeFiles/libelf.dir/src/strptr.c.o
[ 82%] Building C object CMakeFiles/libelf.dir/src/swap64.c.o
[ 83%] Building C object CMakeFiles/libelf.dir/src/update.c.o
[ 85%] Building C object CMakeFiles/libelf.dir/src/verdef_32_tof.c.o
[ 87%] Building C object CMakeFiles/libelf.dir/src/verdef_32_tom.c.o
[ 89%] Building C object CMakeFiles/libelf.dir/src/verdef_64_tof.c.o
[ 91%] Building C object CMakeFiles/libelf.dir/src/verdef_64_tom.c.o
[ 92%] Building C object CMakeFiles/libelf.dir/src/version.c.o
[ 94%] Building C object CMakeFiles/libelf.dir/src/x.elfext.c.o
[ 96%] Building C object CMakeFiles/libelf.dir/src/x.movscn.c.o
[ 98%] Building C object CMakeFiles/libelf.dir/src/x.remscn.c.o
[100%] Linking C static library liblibelf.a
[100%] Built target libelf

mcuee@UbuntuSwift3 ~/build/avr/avrdude_libelf (windows)$ sudo cmake --build build --target install
make: *** No rule to make target 'install'.  Stop

[hp77-creator]

Hey @mcuee, if static libelf is compiled from this, can we use it in place of libelf provided by brew ?

[mcuee]

Hey @mcuee, if static libelf is compiled from this, can we use it in place of libelf provided by brew ?

This is supposed to be the case. But please test against your application.

[hp77-creator]

I am trying to compile libbpf on my system(macOS m2), brew and macports aren't working. Stumbled upon an issue that was raised by Homebrew maintainer in your repo. And now I am looking for alternatives.