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Re: Conditional modules and libraries.

From: Alexandre Duret-Lutz
Subject: Re: Conditional modules and libraries.
Date: Thu, 27 Mar 2003 23:49:06 +0100
User-agent: Gnus/5.090016 (Oort Gnus v0.16) Emacs/21.2 (gnu/linux)

>>> "Bill" == Bill Moseley <address@hidden> writes:


 Bill> noinst_LTLIBRARIES =
 Bill> libswishindex_la_LIBADD =  sw_expat/ $(LIBXML2_OBJS)
 Bill> libswishindex_la_LDFLAGS = $(LIBXML2_LIB)
 Bill> libswishindex_la_CPPFLAGS = $(LIBXML2_CFLAGS) 

 Bill> libswishindex_la_DEPENDENCIES = $(LIBXML2_OBJS)

You should also have sw_expat/ in _DEPENDENCIES.
Maybe it's easier to say 
libswishindex_la_DEPENDENCIES = $(libswishindex_la_LIBADD)

 Bill> EXTRA_libswishindex_la_SOURCES = parser.c parser.h

 Bill> libswishindex_la_SOURCES = \
 Bill> fs.c fs.h \

 Bill> It's building the sources correctly with the
 Bill> -I/usr/include/libxml2/... so the
 Bill> libswishindex_la_CPPFLAGS is working:

 Bill> gcc -DHAVE_CONFIG_H -I. -I. -I. -I/usr/include/libxml2/libxml
 Bill> -I/usr/include/libxml2 -g -O2 -c docprop_write.c
 Bill> -Wp,-MD,.deps/libswishindex_la-docprop_write.TPlo -o
 Bill> libswishindex_la-docprop_write.o >/dev/null 2>&1

 Bill> mv -f .libs/libswishindex_la-docprop_write.lo
 Bill> libswishindex_la-docprop_write.lo

Watch out how the object is named.  Objects compiled with
per-target flags are always prefixed this way (so you can
compile the same source with different flags without conflicts).

 Bill> But then when it builds the $(LIBXML2_OBJS) the flags are
 Bill> missing - which is the only time I really need them! ;).

LIBXML2_OBJS should be set to libswishindex_la-parser.lo, not parser.lo.
parser.lo is compiled with the default flags; libswishindex_la-parser.lo is
compiled with's flags.


Alexandre Duret-Lutz

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