Remove dependencies on bundled zlib, pcre and expat.

diff --git a/Makefile.in b/Makefile.in
index 4360a26..80f9f59 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -210,8 +210,7 @@ coda_matlab_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \
 @BUILD_MATLAB_TRUE@@SUBPACKAGE_MODE_FALSE@	-rpath \
 @BUILD_MATLAB_TRUE@@SUBPACKAGE_MODE_FALSE@	$(matlabmexexecdir)
 am__DEPENDENCIES_1 =
-libcoda_la_DEPENDENCIES = @LTLIBOBJS@ libexpat_internal.la \
-	libpcre_internal.la libz_internal.la $(am__DEPENDENCIES_1) \
+libcoda_la_DEPENDENCIES = @LTLIBOBJS@ $(am__DEPENDENCIES_1) \
 	$(am__DEPENDENCIES_1)
 am__libcoda_la_SOURCES_DIST = libcoda/coda-ascbin-cursor.c \
 	libcoda/coda-ascbin.h libcoda/coda-ascii-cursor.c \
@@ -306,8 +305,7 @@ libcoda_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
 	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
 	$(libcoda_la_LDFLAGS) $(LDFLAGS) -o $@
 @SUBPACKAGE_MODE_FALSE@am_libcoda_la_rpath = -rpath $(libdir)
-am__DEPENDENCIES_2 = @LTLIBOBJS@ libexpat_internal.la \
-	libpcre_internal.la libz_internal.la $(am__DEPENDENCIES_1) \
+am__DEPENDENCIES_2 = @LTLIBOBJS@ $(am__DEPENDENCIES_1) \
 	$(am__DEPENDENCIES_1)
 libcoda_internal_la_DEPENDENCIES = $(am__DEPENDENCIES_2)
 am__libcoda_internal_la_SOURCES_DIST = libcoda/coda-ascbin-cursor.c \
@@ -898,8 +896,8 @@ INSTALL_DATA_HOOK_TARGETS = $(am__append_1)
 UNINSTALL_HOOK_TARGETS = 
 CLEAN_LOCAL_TARGETS = $(am__append_11)
 ALL_LOCAL_TARGETS = 
-@SUBPACKAGE_MODE_FALSE@noinst_LTLIBRARIES = libcoda_internal.la libexpat_internal.la libpcre_internal.la libz_internal.la
-@SUBPACKAGE_MODE_TRUE@noinst_LTLIBRARIES = libcoda_internal.la libexpat_internal.la libpcre_internal.la libz_internal.la
+@SUBPACKAGE_MODE_FALSE@noinst_LTLIBRARIES = libcoda_internal.la
+@SUBPACKAGE_MODE_TRUE@noinst_LTLIBRARIES = libcoda_internal.la
 
 # libraries (+ related files)
 @SUBPACKAGE_MODE_FALSE@lib_LTLIBRARIES = libcoda.la
@@ -1048,7 +1046,7 @@ libcoda_hdf5_files = \
 
 libcoda_la_CPPFLAGS = -Ilibcoda/expat -I$(srcdir)/libcoda/expat -Ilibcoda/pcre -I$(srcdir)/libcoda/pcre -Ilibcoda/zlib -I$(srcdir)/libcoda/zlib $(AM_CPPFLAGS)
 libcoda_la_LDFLAGS = -no-undefined -version-info $(LIBCODA_CURRENT):$(LIBCODA_REVISION):$(LIBCODA_AGE)
-libcoda_la_LIBADD = @LTLIBOBJS@ libexpat_internal.la libpcre_internal.la libz_internal.la $(HDF4LIBS) $(HDF5LIBS)
+libcoda_la_LIBADD = @LTLIBOBJS@ $(HDF4LIBS) $(HDF5LIBS)
 libcoda_internal_la_SOURCES = libcoda/coda-ascbin-cursor.c \
 	libcoda/coda-ascbin.h libcoda/coda-ascii-cursor.c \
 	libcoda/coda-ascii-internal.h libcoda/coda-ascii.c \
82acdfc7e518b09603e7e64ddfc4e87262497'>Collapse</a>)</th><th class='left'>Author</th></tr>
<tr class='logheader'><td><span title='2023-12-22 00:31:40 +0100'>2023-12-22</span></td><td class='logsubject'><a href='/guix/commit/tests/gexp.scm?id=11a454f9dae84cc00b977d164dae764454ecb11d'>gexp: #:references-graphs accepts and honors &lt;gexp-input&gt; records.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* guix/gexp.scm (lower-reference-graphs)[tuple-&gt;gexp-input]: Add
‘gexp-input?’ case.
(gexp-&gt;derivation): Update docstring.
* doc/guix.texi (G-Expressions): Adjust accordingly.
* tests/gexp.scm ("references-file, non-default output"): New test.

Reviewed-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
Change-Id: I595cb75da0867ab8ab44552887dc06ed1d23315e


</td></tr>
<tr class='logheader'><td><span title='2023-12-22 00:31:40 +0100'>2023-12-22</span></td><td class='logsubject'><a href='/guix/commit/tests/gexp.scm?id=d9190abbd20f15ea5b55abdd51e1376f05055850'>gexp: Add compiler for &lt;gexp-input&gt;.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* guix/gexp.scm (gexp-input-compiler): New procedure.
* tests/gexp.scm ("gexp references non-existent output")
("gexp-input, as first-class input"): New tests.
* doc/guix.texi (G-Expressions): Document it.

Reviewed-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
Change-Id: I95b58d6e4d77a54364026b4324fbb00125a9402e


</td></tr>
<tr class='logheader'><td><span title='2023-11-25 16:29:25 +0100'>2023-11-25</span></td><td class='logsubject'><a href='/guix/commit/tests/gexp.scm?id=9b48cf8cdd5718bc35828b3c4c9abe84122dad96'>tests: Import (guix build syscalls) when (guix build store-copy) is used.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
Fixes a test failure introduced in
189525412e3d803f3f77e15ec4a62aaa57f65a2d.

* guix/progress.scm: Autoload (guix build syscalls).
* tests/gexp.scm ("gexp-&gt;derivation, store copy"): Add (guix build
syscalls) to the list of imported modules.  Use ‘with-imported-modules’
rather than #:modules.

Change-Id: I8d3fe90f564ef4b1a340f34cee6c08a741f7b836


</td></tr>
<tr class='logheader'><td><span title='2022-11-11 23:17:42 +0100'>2022-11-11</span></td><td class='logsubject'><a href='/guix/commit/tests/gexp.scm?id=19206eee69e8c22d63104af1b7f1f815969bff7f'>grafts: Run with a UTF-8 locale.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
Fixes &lt;https://issues.guix.gnu.org/55968&gt;.
Reported by Maxime Devos &lt;maximedevos@telenet.be&gt;.

* guix/grafts.scm (%graft-with-utf8-locale?): New parameter.
(graft-derivation/shallow)[glibc-locales, set-utf8-locale]: New
variables.
[build]: Use 'set-utf8-locale'.
* tests/gexp.scm, tests/grafts.scm, tests/packages.scm: Set
'%graft-with-utf8-locale?' to #f.


</td></tr>