[bug-gettext] building gettext with custom libxml2

[David Lukeš]

Hi all,

I'm trying to build gettext 0.19.8.1 with a custom version of libxml2.
The includes are correctly found, but when it comes to linking, gcc
tries to link against a system-installed version of libxml2 instead,
which results in an undefined reference error:

/bin/sh ../libtool  --tag=CC   --mode=link 
/cnk/common/tools/spack/lib/spack/env/gcc/gcc     -o msgcmp 
msgcmp-msgcmp.o msgcmp-msgl-fsearch.o libgettextsrc.la  -lm
libtool: link: /cnk/common/tools/spack/lib/spack/env/gcc/gcc -o 
.libs/msgcmp msgcmp-msgcmp.o msgcmp-msgl-fsearch.o 
./.libs/libgettextsrc.so 
/tmp/lukes/spack-stage/spack-stage-GOwpgQ/gettext-0.19.8.1/gettext-tools/gnulib-lib/.libs/libgettextlib.so 
-lacl /usr/lib/x86_64-linux-gnu/libxml2.so -lncurses 
/tmp/lukes/spack-stage/spack-stage-GOwpgQ/gettext-0.19.8.1/gettext-tools/intl/.libs/libintl.so 
-lc -lm -fopenmp -Wl,-rpath 
-Wl,/cnk/common/tools/spack/opt/spack/linux-ubuntu12.04-x86_64/gcc-6.4.0/gettext-0.19.8.1-iyq7wap5sppgofyeunv7j36rvmeewop4/lib
./.libs/libgettextsrc.so: undefined reference to `xmlOutputBufferGetContent'
./.libs/libgettextsrc.so: undefined reference to `xmlXPathSetContextNode'
collect2: error: ld returned 1 exit status

This is how configure was invoked:

./configure 
--prefix=/cnk/common/tools/spack/opt/spack/linux-ubuntu12.04-x86_64/gcc-6.4.0/gettext-0.19.8.1-iyq7wap5sppgofyeunv7j36rvmeewop4 
--disable-java --disable-csharp --with-included-glib 
--with-included-gettext --with-included-libcroco --without-emacs 
--with-lispdir=/cnk/common/tools/spack/opt/spack/linux-ubuntu12.04-x86_64/gcc-6.4.0/gettext-0.19.8.1-iyq7wap5sppgofyeunv7j36rvmeewop4/share/emacs/site-lisp/gettext 
--without-cvs 
--with-ncurses-prefix=/cnk/common/tools/spack/opt/spack/linux-ubuntu12.04-x86_64/gcc-6.4.0/ncurses-6.0-c7c4oxnzvvria76haxxvhnoej3zv65vh 
--with-libxml2-prefix=/cnk/common/tools/spack/opt/spack/linux-ubuntu12.04-x86_64/gcc-6.4.0/libxml2-2.9.4-xdv2bdnzahsvgsfzgx5k3hp76kpstxqi 
--with-included-libunistring

I'd be grateful for any pointers -- I'm not sure whether I'm doing
something wrong, or whether there's maybe a bug in the build system :)

Thanks and best,

David Lukeš