Re: [Vala] error: Failed to execute child process (Exec format error)

[Daniel Espinosa <esodan gmail com>]

It appears you have an invalid exe file, may you try to execute valac
--help to see if it valid exe.

Have you latest gib version installed? Because Vala is in line with a
specific GLib/GTK version.
El jun. 16, 2016 8:03 AM, "oyster" <lepto python gmail com> escribió:

> My compiled valac says "error: Failed to execute child process (Exec
> format error)"
> any hints to trace what is the problem?
>
> 1. I have a pre-installed Mingw + msys on my win7 64 bits to compile
> 32bits applications, which can compile CPP/C program without problem.
> pkg-config is avaliable too. And I don't want to install yet another
> mingw+msys since I have installed many libs
>
> 2. Install old vala
> I downloaded vala-0.18.0-mingw32-bin.tar from
> http://linbox.free.fr/vala/, and decompressed it into
> /opt/windows_32/vala-my-build, then I add
> /opt/windows_32/vala-my-build into PATH
>
> 3. test old vala on hello.vala to prove vala-0.18 runs with my mingw+msys
> [I am hello.vala]
> void main()
> {print("hello\n");}
> [/I am hello.vala]
>
> [compile hello]
> $ valac hello.vala
> r:/hello.vala.c: In function 'main':
> r:/hello.vala.c:20:2: warning: 'g_type_init' is deprecated (declared at
> E:/msys/
> opt/windows_32/include/glib-2.0/gobject/gtype.h:681)
> [-Wdeprecated-declarations]
>
>   g_type_init ();
>   ^
> [compile hello]
>
> then run hello.exe
> [run hello.exe]
> $ hello.exe
> hello
> [/run hello.exe]
>
> 4. then download
> https://wiki.gnome.org/Projects/Vala/Release#Vala_0.32.0 and
> decompress it into /r/vala-0.32.0
>
> 5. compile Vala_0.32.0 and install into my mingw+msys
> [compile Vala_0.32.0 and install into my mingw+msys]
> $ cd /r/vala-0.32.0
> $ ./configure --prefix=/opt/windows_32/vala-my-build
> $ make
> $ make install
> [/compile Vala_0.32.0 and install into my mingw+msys]
>
> 6. testing new-compiled vala-0.32 on hello.vala failed
> [test new-compiled vala-0.32]
> $ valac hello.vala
> error: Failed to execute child process (Exec format error)
> error: Failed to execute child process (Exec format error)
> error: Failed to execute child process (Exec format error)
> Compilation failed: 3 error(s), 0 warning(s)
> [/test new-compiled vala-0.32]
>
> 7. in case you want this failed test. Of cause, it can not succeed
> since we have met the faliure in step 6
> [make test]
> $ make test
> cd tests && make  check
> make[1]: Entering directory `/r/vala-0.32.0/tests'
> make  check-am
> make[2]: Entering directory `/r/vala-0.32.0/tests'
> make  check-TESTS
> make[3]: Entering directory `/r/vala-0.32.0/tests'
> TEST: Building...                                                      FAIL
> Compilation failed: 6 error(s), 0 warning(s)
> error: Failed to execute child process (Exec format error)
> error: Failed to execute child process (Exec format error)
> error: Failed to execute child process (Exec format error)
> error: Failed to execute child process (Exec format error)
> error: Failed to execute child process (Exec format error)
> error: Failed to execute child process (Exec format error)
> Makefile:2214: recipe for target `check-TESTS' failed
> make[3]: *** [check-TESTS] Error 1
> make[3]: Leaving directory `/r/vala-0.32.0/tests'
> Makefile:2088: recipe for target `check-am' failed
> make[2]: *** [check-am] Error 2
> make[2]: Leaving directory `/r/vala-0.32.0/tests'
> Makefile:2090: recipe for target `check' failed
> make[1]: *** [check] Error 2
> make[1]: Leaving directory `/r/vala-0.32.0/tests'
> Makefile:968: recipe for target `test' failed
> make: *** [test] Error 2
> [/make test]
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