[libxslt] autotools: Link with -no-undefined

[Nick Wellnhofer <nwellnhof src gnome org>]

commit b3a5793a0d614cf08123aa969c9616071a7e727e
Author: Nick Wellnhofer <wellnhofer aevum de>
Date:   Tue Sep 6 13:51:21 2022 +0200

    autotools: Link with -no-undefined
    
    This catches errors earlier.

 libexslt/Makefile.am      | 3 ++-
 libxslt/Makefile.am       | 1 +
 tests/plugins/Makefile.am | 4 +++-
 3 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/libexslt/Makefile.am b/libexslt/Makefile.am
index c2dc6364..064fca05 100644
--- a/libexslt/Makefile.am
+++ b/libexslt/Makefile.am
@@ -28,7 +28,8 @@ libexslt_la_SOURCES =                   \
        dynamic.c
 
 libexslt_la_LIBADD = $(top_builddir)/libxslt/libxslt.la $(LIBXML_LIBS) $(EXTRA_LIBS) $(LIBGCRYPT_LIBS) 
$(LIBM)
-libexslt_la_LDFLAGS = -version-info $(LIBEXSLT_VERSION_INFO)
+libexslt_la_LDFLAGS = $(AM_LDFLAGS) -no-undefined \
+                     -version-info $(LIBEXSLT_VERSION_INFO)
 
 man_MANS = libexslt.3
 
diff --git a/libxslt/Makefile.am b/libxslt/Makefile.am
index 9560dc3b..eeda05b8 100644
--- a/libxslt/Makefile.am
+++ b/libxslt/Makefile.am
@@ -61,6 +61,7 @@ endif
 
 libxslt_la_LIBADD = $(LIBXML_LIBS) $(EXTRA_LIBS) $(LIBM)
 libxslt_la_LDFLAGS =                                   \
+               $(AM_LDFLAGS) -no-undefined             \
                $(LIBXSLT_VERSION_SCRIPT)               \
                -version-info $(LIBXSLT_VERSION_INFO)
 
diff --git a/tests/plugins/Makefile.am b/tests/plugins/Makefile.am
index 70f688bc..50fb20ac 100644
--- a/tests/plugins/Makefile.am
+++ b/tests/plugins/Makefile.am
@@ -21,7 +21,9 @@ plugindir = $(abs_builddir)/.libs
 xmlsoft_org_xslt_testplugin_la_CFLAGS = -DMODULE_COMPILE $(LIBXML_CFLAGS) $(LIBXSLT_CFLAGS)
 xmlsoft_org_xslt_testplugin_la_SOURCES = testplugin.c
 xmlsoft_org_xslt_testplugin_la_LIBADD = $(top_builddir)/libxslt/libxslt.la $(EXTRA_LIBS)
-xmlsoft_org_xslt_testplugin_la_LDFLAGS = -module -avoid-version -rpath $(plugindir)
+xmlsoft_org_xslt_testplugin_la_LDFLAGS = \
+       $(AM_LDFLAGS) -no-undefined \
+       -module -avoid-version -rpath $(plugindir)
 
 test-logall:
        @echo '## Running plugin tests'