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From: Philippe Strauss <philou@philou.ch>
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Subject: [Caml-list] -no-cpp-precomp

hello ocaml users,

trying to hand build lablgtk2 (for which the mailing list address is not obvious to find after the switch from yquiem to ?), I see this error:

ocamlc.opt -c -ccopt '-DG_DISABLE_ASSERT -DG_DISABLE_CAST_CHECKS -D_REENTRANT -I/usr/local/Cellar/gtk+/2.24.5/include/gtk-2.0 -I/usr/local/Cellar/gtk+/2.24.5/lib/gtk-2.0/include -I/usr/local/Cellar/atk/2.0.1/include/atk-1.0 -I/usr/local/Cellar/gdk-pixbuf/2.23.5/include/gdk-pixbuf-2.0 -I/usr/local/Cellar/pango/1.28.4/include/pango-1.0 -I/usr/local/Cellar/glib/2.28.7/include/glib-2.0 -I/usr/local/Cellar/glib/2.28.7/lib/glib-2.0/include -I/usr/local/Cellar/gettext/0.18.1.1/include -I/usr/local/Cellar/glib/2.28.7/include -I/usr/local/Cellar/pixman/0.22.0/include/pixman-1 -I/usr/local/include/gtkgl-2.0 -I/usr/X11/include/cairo -I/usr/X11/include -I/usr/X11/include/freetype2 -I/usr/X11/include/libpng15   -imacros ml_domain.h -O' -verbose ml_gdkpixbuf.c
+ gcc -fno-defer-pop -no-cpp-precomp -Wall -D_FILE_OFFSET_BITS=64 -D_REENTRANT  -c -DG_DISABLE_ASSERT -DG_DISABLE_CAST_CHECKS -D_REENTRANT -I/usr/local/Cellar/gtk+/2.24.5/include/gtk-2.0 -I/usr/local/Cellar/gtk+/2.24.5/lib/gtk-2.0/include -I/usr/local/Cellar/atk/2.0.1/include/atk-1.0 -I/usr/local/Cellar/gdk-pixbuf/2.23.5/include/gdk-pixbuf-2.0 -I/usr/local/Cellar/pango/1.28.4/include/pango-1.0 -I/usr/local/Cellar/glib/2.28.7/include/glib-2.0 -I/usr/local/Cellar/glib/2.28.7/lib/glib-2.0/include -I/usr/local/Cellar/gettext/0.18.1.1/include -I/usr/local/Cellar/glib/2.28.7/include -I/usr/local/Cellar/pixman/0.22.0/include/pixman-1 -I/usr/local/include/gtkgl-2.0 -I/usr/X11/include/cairo -I/usr/X11/include -I/usr/X11/include/freetype2 -I/usr/X11/include/libpng15   -imacros ml_domain.h -O  -I'/opt/godi312/lib/ocaml/std-lib' 'ml_gdkpixbuf.c'
gcc: erreur: unrecognized option ‘-no-cpp-precomp’
make[1]: *** [ml_gdkpixbuf.o] Error 2
make: *** [all] Error 2

both a genuine gnu gcc 4.6.1 and apple llvm-gcc 4.2 doest not recognize this -no-cpp-precomp option, where is it stored ?

regards.