Re: [Mesa3d-dev] libtool problem

[Marcelo E. M. <mar...@bi...>]

Hi Sven,

 > :) Finally! As you can see from the above, configure.in already adds
 > -I$srcdir/src/X86 to CPPFLAGS.

 I don't think I expressed myself correctly.

 My problem is this (solution/pseudo patch at the end, if you want to
 skip all this).  I do:

 $ mkdir build/software
 $ cd build/software
 $ ../../configure

 configure says MMX and whatever are not supported and disables that.
 AFAICS it's because of this:

AC_DEFUN(MESA_SYS_AS_FEATURE, [
  AC_CACHE_CHECK(whether the assembler supports $1,
                 mesa_cv_sys_as_$1,
                 MESA_TRY_ASSEMBLE([#include "src/X86/assyntax.h"], $2,
                                   mesa_cv_sys_as_$1=yes,
                                   mesa_cv_sys_as_$1=no))
])

 note the test program wants to include "src/X86/assyntax.h".  For this
 to work, the command line has to read:

 $ cc [...] -I../.. [...]

 In config.log I find:

configure:7290: gcc -c -g -O2 -Wall -fomit-frame-pointer -ffast-math -fexpensive
-optimizations -fstrict-aliasing -malign-loops=2 -malign-jumps=2 -malign-functio
ns=2 -D_REENTRANT -DPTHREADS  -I../../src/X86 conftest.S >&5
conftest.S:1: src/X86/assyntax.h: No such file or directory

 Note it's using -I../../src/X86

 MESA_TRY_ASSEMBLE looks like this:

AC_DEFUN(MESA_TRY_ASSEMBLE, [
  cat > conftest.S <<EOF
$1

$2
EOF
  save_ac_ext="$ac_ext"
  ac_ext=S
  if AC_TRY_EVAL(ac_compile); then
    $3;
  else
    $4;
  fi
  ac_ext="$save_ac_ext"
  rm -f conftest.S
])

 In the top configure.in file it reads:

dnl Necessary for assembler sources
save_ac_ext="$ac_ext"
save_CPPFLAGS="$CPPFLAGS"
ac_ext=S
CPPFLAGS="$CPPFLAGS -I$srcdir/src/X86"

 what I need there is an extra "-I$srcdir" like this:

-CPPFLAGS="$CPPFLAGS -I$srcdir/src/X86"
+CPPFLAGS="$CPPFLAGS -I$srcdir/src/X86 -I$srcdir"

 TIA,

-- 
Marcelo