autotools: fix link error when system tinyxml is used. (Thanks hesti)

See discussion in C::B forum:
https://forums.codeblocks.org/index.php/topic,26015.msg177209.html

Authored by: christoj 2026-05-26

https://sourceforge.net/p/codeblocks/code/13855/

$ svn diff -r r13854:r13855 > r13855.patch

Patch amended to apply on Gentoo (adds 'a/' and 'b/' prefixes).

This should fix dev-util/codeblocks-25.03 'undefined reference'
compile errors such as the following:

libtool: link: x86_64-pc-linux-gnu-g++  -fPIC -DPIC -shared -nostdlib /usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../lib64/crti.o /usr/lib/gcc/x86_64-pc-linux-gnu/15/crtbeginS.o  .libs/AutoVersioning.o .libs/avChangesDlg.o .libs/avHeader.o .libs/avSvnRevision.o .libs/avVersionEditorDlg.o   -Wl,-rpath -Wl,/var/tmp/portage/dev-util/codeblocks-25.03-r2/work/codeblocks_25.03/src/sdk/.libs -Wl,--as-needed ../../../sdk/.libs/libcodeblocks.so -L/usr/lib64 -lwx_gtk3u_aui-3.2 -lwx_gtk3u_propgrid-3.2 -lwx_gtk3u_richtext-3.2 -lwx_gtk3u_xrc-3.2 -lwx_gtk3u_html-3.2 -lwx_gtk3u_qa-3.2 -lwx_gtk3u_core-3.2 -lwx_baseu_xml-3.2 -lwx_baseu_net-3.2 -lwx_baseu-3.2 -lpthread -ldl -L/usr/lib/gcc/x86_64-pc-linux-gnu/15 -L/usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../x86_64-pc-linux-gnu/lib -L/usr/lib/gcc/x86_64-pc-linux-gnu/15/../../.. -L/lib -L/usr/lib -lstdc++ -lm -lgcc_s -lc -lgcc_s /usr/lib/gcc/x86_64-pc-linux-gnu/15/crtendS.o /usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../lib64/crtn.o  -O2 -march=x86-64 -mtune=generic -Wl,--no-undefined -Wl,-O1 -Wl,-z -Wl,pack-relative-relocs   -pthread -Wl,-soname -Wl,libAutoVersioning.so -o .libs/libAutoVersioning.so
/usr/x86_64-pc-linux-gnu/binutils-bin/2.47/ld: .libs/AutoVersioning.o: in function `AutoVersioning::OnProjectLoadingHook(cbProject*, TiXmlElement*, bool)':
AutoVersioning.cpp:(.text+0x7755): undefined reference to `TiXmlNode::FirstChildElement(char const*) const'

$ find /usr/lib64/ -name "libtinyxml.so" | xargs -I {} sh -c 'nm -D --defined-only ${1} 2>/dev/null | grep FirstChildElement && echo ${1}' _ {}
000000000000db00 T _ZNK11TiXmlHandle17FirstChildElementEPKc
000000000000dac0 T _ZNK11TiXmlHandle17FirstChildElementEv
000000000000aa70 T _ZNK9TiXmlNode17FirstChildElementEPKc
000000000000aa30 T _ZNK9TiXmlNode17FirstChildElementEv
/usr/lib64/libtinyxml.so

Index: src/plugins/contrib/AutoVersioning/Makefile.am
===================================================================
--- a/src/plugins/contrib/AutoVersioning/Makefile.am	(revision 13854)
+++ b/gsrc/plugins/contrib/AutoVersioning/Makefile.am	(revision 13855)
@@ -11,6 +11,10 @@
 libAutoVersioning_la_LIBADD = ../../../sdk/libcodeblocks.la \
 			$(WX_LIBS)
 
+if ! CODEBLOCKS_NT
+libAutoVersioning_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 libAutoVersioning_la_SOURCES = AutoVersioning.cpp \
             avChangesDlg.cpp \
             avHeader.cpp \
Index: src/plugins/contrib/BrowseTracker/Makefile.am
===================================================================
--- a/src/plugins/contrib/BrowseTracker/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/BrowseTracker/Makefile.am	(revision 13855)
@@ -11,6 +11,10 @@
 libBrowseTracker_la_LIBADD = ../../../sdk/libcodeblocks.la \
 			$(WX_LIBS)
 
+if ! CODEBLOCKS_NT
+libBrowseTracker_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 libBrowseTracker_la_SOURCES = BrowseTracker.cpp \
 			Version.cpp \
 			BrowseMarks.cpp \
Index: src/plugins/contrib/CppCheck/Makefile.am
===================================================================
--- a/src/plugins/contrib/CppCheck/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/CppCheck/Makefile.am	(revision 13855)
@@ -13,6 +13,10 @@
 libCppCheck_la_LIBADD = ../../../sdk/libcodeblocks.la \
 		$(WX_LIBS)
 
+if ! CODEBLOCKS_NT
+libCppCheck_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 libCppCheck_la_SOURCES = CppCheck.cpp \
             CppCheckListLog.cpp \
             ConfigPanel.cpp
Index: src/plugins/contrib/DoxyBlocks/Makefile.am
===================================================================
--- a/src/plugins/contrib/DoxyBlocks/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/DoxyBlocks/Makefile.am	(revision 13855)
@@ -11,6 +11,10 @@
 libDoxyBlocks_la_LIBADD = ../../../sdk/libcodeblocks.la \
 			$(WX_LIBS)
 
+if ! CODEBLOCKS_NT
+libDoxyBlocks_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 libDoxyBlocks_la_SOURCES = AutoDoc.cpp \
 				Config.cpp \
 				ConfigPanel.cpp \
Index: src/plugins/contrib/EditorConfig/Makefile.am
===================================================================
--- a/src/plugins/contrib/EditorConfig/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/EditorConfig/Makefile.am	(revision 13855)
@@ -11,6 +11,10 @@
 libEditorConfig_la_LIBADD = ../../../sdk/libcodeblocks.la \
 			$(WX_LIBS)
 
+if ! CODEBLOCKS_NT
+libEditorConfig_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 libEditorConfig_la_SOURCES = \
 			EditorConfigUI.cpp \
 			EditorConfig.cpp
Index: src/plugins/contrib/Valgrind/Makefile.am
===================================================================
--- a/src/plugins/contrib/Valgrind/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/Valgrind/Makefile.am	(revision 13855)
@@ -13,6 +13,10 @@
 libValgrind_la_LIBADD = ../../../sdk/libcodeblocks.la \
 			$(WX_LIBS)
 
+if ! CODEBLOCKS_NT
+libValgrind_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 libValgrind_la_SOURCES = Valgrind.cpp \
 			ValgrindListLog.cpp \
 			valgrind_config.cpp
Index: src/plugins/contrib/clangd_client/Makefile.am
===================================================================
--- a/src/plugins/contrib/clangd_client/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/clangd_client/Makefile.am	(revision 13855)
@@ -36,6 +36,10 @@
 			$(WX_LIBS)
 
 if ! CODEBLOCKS_NT
+libclangd_client_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
+if ! CODEBLOCKS_NT
 libclangd_client_la_LIBADD += -lutil
 endif
 
Index: src/plugins/contrib/codesnippets/Makefile.am
===================================================================
--- a/src/plugins/contrib/codesnippets/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/codesnippets/Makefile.am	(revision 13855)
@@ -18,6 +18,10 @@
 		$(WX_GTK_LIBS) \
 		$(WX_X11_LIBS)
 
+if ! CODEBLOCKS_NT
+libcodesnippets_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 libcodesnippets_la_SOURCES = codesnippets.cpp \
 		codesnippetstreectrl.cpp \
 		codesnippetswindow.cpp \
Index: src/plugins/contrib/envvars/Makefile.am
===================================================================
--- a/src/plugins/contrib/envvars/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/envvars/Makefile.am	(revision 13855)
@@ -13,6 +13,10 @@
 libenvvars_la_LIBADD = ../../../sdk/libcodeblocks.la \
 			$(WX_LIBS)
 
+if ! CODEBLOCKS_NT
+libenvvars_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 libenvvars_la_SOURCES = envvars.cpp \
                         envvars_cfgdlg.cpp \
                         envvars_common.cpp \
Index: src/plugins/contrib/lib_finder/Makefile.am
===================================================================
--- a/src/plugins/contrib/lib_finder/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/lib_finder/Makefile.am	(revision 13855)
@@ -17,6 +17,10 @@
 		../wxContribItems/wxFlatNotebook/libwxflatnotebook.la \
 		$(WX_LIBS)
 
+if ! CODEBLOCKS_NT
+liblib_finder_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 liblib_finder_la_SOURCES = \
 		librariesdlg.cpp \
 		dirlistdlg.cpp \
Index: src/plugins/contrib/wxSmithAui/Makefile.am
===================================================================
--- a/src/plugins/contrib/wxSmithAui/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/wxSmithAui/Makefile.am	(revision 13855)
@@ -16,6 +16,10 @@
 		       ../wxSmith/libwxsmithlib.la \
 		       $(WX_LIBS)
 
+if ! CODEBLOCKS_NT
+libwxSmithAui_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 EXTRA_DIST = $(srcdir)/images/*.xpm \
 		$(srcdir)/images/*.xcf \
 		$(srcdir)/wxsmith/*.wxs \
Index: src/plugins/contrib/wxSmithContribItems/Makefile.am
===================================================================
--- a/src/plugins/contrib/wxSmithContribItems/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/wxSmithContribItems/Makefile.am	(revision 13855)
@@ -40,6 +40,10 @@
 			../wxContribItems/wxmathplot/libwxmathplot.la \
 			$(WX_LIBS)
 
+if ! CODEBLOCKS_NT
+libwxsmithcontribitems_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 EXTRA_DIST = $(srcdir)/wxchart/*.xpm \
 		$(srcdir)/wxchart/*.png \
 		$(srcdir)/wximagebutton/*.xpm \
Index: src/plugins/contrib/SpellChecker/Makefile.am
===================================================================
--- a/src/plugins/contrib/SpellChecker/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/SpellChecker/Makefile.am	(revision 13855)
@@ -17,6 +17,10 @@
 							$(WX_LIBS) \
 							$(CB_HUNSPELL_LIBS)
 
+if ! CODEBLOCKS_NT
+libSpellChecker_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 libSpellChecker_la_SOURCES = DictionariesNeededDialog.cpp \
                             MySpellingDialog.cpp \
                             OnlineSpellChecker.cpp \
Index: src/plugins/contrib/source_exporter/Makefile.am
===================================================================
--- a/src/plugins/contrib/source_exporter/Makefile.am	(revision 13854)
+++ b/src/plugins/contrib/source_exporter/Makefile.am	(revision 13855)
@@ -18,6 +18,10 @@
 				wxPdfDocument/libwxPdfDocument.la \
 				$(WX_LIBS) $(CB_FONTCONFIG_LIBS)
 
+if ! CODEBLOCKS_NT
+libexporter_la_LIBADD += $(CB_TINYXML_LIBS)
+endif
+
 libexporter_la_SOURCES = BaseExporter.cpp \
 				exporter.cpp \
 				HTMLExporter.cpp \