Re: [PATCH] contrib: Fill in HOST{CC,CFLAGS,CXX,CXXFLAGS} in test_installed

[Jeff Law <jeffreyalaw@gmail.com>]

On 2/5/24 06:50, Jakub Jelinek wrote:
> Hi!
> 
> gcc/Makefile.in since my r0-60234 change fills in HOSTCC and HOSTCFLAGS
> in site.exp and since r8-671 also HOSTCXX and HOSTCXXFLAGS.
> If those variables aren't set, we get errors like:
> /usr/src/gcc/contrib/test_installed --without-g++ --without-gfortran --without-objc struct-layout-1.exp
> ...
> ERROR: tcl error sourcing /usr/src/gcc/gcc/testsuite/gcc.dg/compat/struct-layout-1.exp.
> ERROR: tcl error code TCL LOOKUP VARNAME HOSTCC
> ERROR: can't read "HOSTCC": no such variable
>      while executing
> "remote_exec build "$HOSTCC $HOSTCFLAGS $generator_cmd""
>      (file "/usr/src/gcc/gcc/testsuite/gcc.dg/compat/struct-layout-1.exp" line 96)
>      invoked from within
> "source /usr/src/gcc/gcc/testsuite/gcc.dg/compat/struct-layout-1.exp"
>      ("uplevel" body line 1)
>      invoked from within
> "uplevel #0 source /usr/src/gcc/gcc/testsuite/gcc.dg/compat/struct-layout-1.exp"
>      invoked from within
> "catch "uplevel #0 source $test_file_name" msg"
> 
> (similarly in g++ or gfortran) struct-layout-1.exp.  One doesn't need to
> test specially for just struct-layout-1.exp alone, just not using any arg
> will trigger it as well, just later.
> 
> The following patch fills it in as cc and c++ with empty flags to compile
> those, I believe that is what e.g. make uses by default, so it should be a
> reasonable default.  We IMHO shouldn't default to GCC_UNDER_TEST because
> that might be a cross-compiler etc.
> 
> Ok for trunk?
> 
> 2024-02-05  Jakub Jelinek  <jakub@redhat.com>
> 
> 	* test_installed: Fill in HOSTCC, HOSTCXX, HOSTCFLAGS and
> 	HOSTCXXFLAGS.
Ugh.  test_installed :(  Probably a necessary evil, though I suspect few 
people are using it.  So if it works for the scenarios you're testing, 
then OK by me.


jeff