diff --git a/animations/Library_animcore.mk b/animations/Library_animcore.mk
index ff35201c19d0..f0c8dab926ff 100644
--- a/animations/Library_animcore.mk
+++ b/animations/Library_animcore.mk
@@ -19,8 +19,6 @@
 
 $(eval $(call gb_Library_Library,animcore))
 
-$(eval $(call gb_Library_use_external,animcore,boost_headers))
-
 $(eval $(call gb_Library_set_componentfile,animcore,animations/source/animcore/animcore,services))
 
 $(eval $(call gb_Library_use_sdk_api,animcore))
diff --git a/basegfx/CppunitTest_basegfx.mk b/basegfx/CppunitTest_basegfx.mk
index 219025e8e3e6..dde57afb7a62 100644
--- a/basegfx/CppunitTest_basegfx.mk
+++ b/basegfx/CppunitTest_basegfx.mk
@@ -9,8 +9,6 @@
 
 $(eval $(call gb_CppunitTest_CppunitTest,basegfx))
 
-$(eval $(call gb_CppunitTest_use_external,basegfx,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_sdk_api,basegfx))
 
 $(eval $(call gb_CppunitTest_use_libraries,basegfx,\
diff --git a/binaryurp/CppunitTest_binaryurp_test-cache.mk b/binaryurp/CppunitTest_binaryurp_test-cache.mk
index 97f5b78f081d..50f3d1b4c02d 100644
--- a/binaryurp/CppunitTest_binaryurp_test-cache.mk
+++ b/binaryurp/CppunitTest_binaryurp_test-cache.mk
@@ -9,8 +9,6 @@
 
 $(eval $(call gb_CppunitTest_CppunitTest,binaryurp_test-cache))
 
-$(eval $(call gb_CppunitTest_use_external,binaryurp_test-cache,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_libraries,binaryurp_test-cache,\
 	sal \
 ))
diff --git a/binaryurp/CppunitTest_binaryurp_test-unmarshal.mk b/binaryurp/CppunitTest_binaryurp_test-unmarshal.mk
index 11c70f5b9db0..03823614e99e 100644
--- a/binaryurp/CppunitTest_binaryurp_test-unmarshal.mk
+++ b/binaryurp/CppunitTest_binaryurp_test-unmarshal.mk
@@ -9,8 +9,6 @@
 
 $(eval $(call gb_CppunitTest_CppunitTest,binaryurp_test-unmarshal))
 
-$(eval $(call gb_CppunitTest_use_external,binaryurp_test-unmarshal,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_libraries,binaryurp_test-unmarshal,\
 	cppu \
 	cppuhelper \
diff --git a/binaryurp/Library_binaryurp.mk b/binaryurp/Library_binaryurp.mk
index 439f1f7d41aa..74205c9e66a2 100644
--- a/binaryurp/Library_binaryurp.mk
+++ b/binaryurp/Library_binaryurp.mk
@@ -13,8 +13,6 @@ $(eval $(call gb_Library_set_componentfile,binaryurp,binaryurp/source/binaryurp,
 
 $(eval $(call gb_Library_use_udk_api,binaryurp))
 
-$(eval $(call gb_Library_use_external,binaryurp,boost_headers))
-
 $(eval $(call gb_Library_use_libraries,binaryurp,\
 	cppu \
 	cppuhelper \
diff --git a/comphelper/CppunitTest_comphelper_parallelsort_test.mk b/comphelper/CppunitTest_comphelper_parallelsort_test.mk
index e1d2eab9ec36..1eac7d5276b4 100644
--- a/comphelper/CppunitTest_comphelper_parallelsort_test.mk
+++ b/comphelper/CppunitTest_comphelper_parallelsort_test.mk
@@ -13,10 +13,6 @@ $(eval $(call gb_CppunitTest_add_exception_objects,comphelper_parallelsort_test,
     comphelper/qa/unit/parallelsorttest \
 ))
 
-$(eval $(call gb_CppunitTest_use_externals,comphelper_parallelsort_test,\
-	boost_headers \
-))
-
 $(eval $(call gb_CppunitTest_use_sdk_api,comphelper_parallelsort_test))
 
 $(eval $(call gb_CppunitTest_use_libraries,comphelper_parallelsort_test, \
@@ -27,4 +23,4 @@ $(eval $(call gb_CppunitTest_use_libraries,comphelper_parallelsort_test, \
     tl \
 ))
 
-# vim: set noet sw=4 ts=4:
\ No newline at end of file
+# vim: set noet sw=4 ts=4:
diff --git a/comphelper/CppunitTest_comphelper_syntaxhighlight_test.mk b/comphelper/CppunitTest_comphelper_syntaxhighlight_test.mk
index 0ca808051a80..ab2ff0f143b2 100644
--- a/comphelper/CppunitTest_comphelper_syntaxhighlight_test.mk
+++ b/comphelper/CppunitTest_comphelper_syntaxhighlight_test.mk
@@ -13,10 +13,6 @@ $(eval $(call gb_CppunitTest_add_exception_objects,comphelper_syntaxhighlight_te
     comphelper/qa/unit/syntaxhighlighttest \
 ))
 
-$(eval $(call gb_CppunitTest_use_externals,comphelper_syntaxhighlight_test,\
-	boost_headers \
-))
-
 $(eval $(call gb_CppunitTest_use_sdk_api,comphelper_syntaxhighlight_test))
 
 $(eval $(call gb_CppunitTest_use_libraries,comphelper_syntaxhighlight_test, \
diff --git a/comphelper/CppunitTest_comphelper_threadpool_test.mk b/comphelper/CppunitTest_comphelper_threadpool_test.mk
index 24467c898f80..5e2391fdeddb 100644
--- a/comphelper/CppunitTest_comphelper_threadpool_test.mk
+++ b/comphelper/CppunitTest_comphelper_threadpool_test.mk
@@ -13,10 +13,6 @@ $(eval $(call gb_CppunitTest_add_exception_objects,comphelper_threadpool_test, \
     comphelper/qa/unit/threadpooltest \
 ))
 
-$(eval $(call gb_CppunitTest_use_externals,comphelper_threadpool_test,\
-	boost_headers \
-))
-
 $(eval $(call gb_CppunitTest_use_sdk_api,comphelper_threadpool_test))
 
 $(eval $(call gb_CppunitTest_use_libraries,comphelper_threadpool_test, \
diff --git a/comphelper/CppunitTest_comphelper_variadictemplates_test.mk b/comphelper/CppunitTest_comphelper_variadictemplates_test.mk
index 03ded85270fc..50ee76cacc42 100644
--- a/comphelper/CppunitTest_comphelper_variadictemplates_test.mk
+++ b/comphelper/CppunitTest_comphelper_variadictemplates_test.mk
@@ -15,10 +15,6 @@ $(eval $(call gb_CppunitTest_add_exception_objects,comphelper_variadictemplates_
 
 $(eval $(call gb_CppunitTest_use_sdk_api,comphelper_variadictemplates_test))
 
-$(eval $(call gb_CppunitTest_use_externals,comphelper_variadictemplates_test, \
-	boost_headers \
-))
-
 $(eval $(call gb_CppunitTest_use_libraries,comphelper_variadictemplates_test, \
     comphelper \
     cppuhelper \
diff --git a/cppu/CppunitTest_cppu_qa_any.mk b/cppu/CppunitTest_cppu_qa_any.mk
index d565b0fd369c..a21dd5b05d08 100644
--- a/cppu/CppunitTest_cppu_qa_any.mk
+++ b/cppu/CppunitTest_cppu_qa_any.mk
@@ -14,8 +14,6 @@ $(eval $(call gb_CppunitTest_add_exception_objects,cppu_qa_any, \
 	cppu/qa/test_any \
 ))
 
-$(eval $(call gb_CppunitTest_use_external,cppu_qa_any,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_libraries,cppu_qa_any, \
 	cppu \
 	sal \
diff --git a/cppu/CppunitTest_cppu_qa_reference.mk b/cppu/CppunitTest_cppu_qa_reference.mk
index 426902b5a8de..38af7b806eab 100644
--- a/cppu/CppunitTest_cppu_qa_reference.mk
+++ b/cppu/CppunitTest_cppu_qa_reference.mk
@@ -14,8 +14,6 @@ $(eval $(call gb_CppunitTest_add_exception_objects,cppu_qa_reference, \
 	cppu/qa/test_reference \
 ))
 
-$(eval $(call gb_CppunitTest_use_external,cppu_qa_reference,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_libraries,cppu_qa_reference, \
 	cppu \
 	sal \
diff --git a/cppu/CppunitTest_cppu_test_cppumaker.mk b/cppu/CppunitTest_cppu_test_cppumaker.mk
index c812d94de8ac..55fb8f2df609 100644
--- a/cppu/CppunitTest_cppu_test_cppumaker.mk
+++ b/cppu/CppunitTest_cppu_test_cppumaker.mk
@@ -14,8 +14,6 @@ $(eval $(call gb_CppunitTest_add_exception_objects,cppu_test_cppumaker, \
 	cppu/qa/cppumaker/test_cppumaker \
 ))
 
-$(eval $(call gb_CppunitTest_use_external,cppu_test_cppumaker,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_libraries,cppu_test_cppumaker, \
 	cppu \
 	sal \
diff --git a/cppu/Library_cppu.mk b/cppu/Library_cppu.mk
index d1874822bd97..5f3caeded328 100644
--- a/cppu/Library_cppu.mk
+++ b/cppu/Library_cppu.mk
@@ -20,8 +20,6 @@ $(eval $(call gb_Library_add_defs,cppu,\
 	-DCPPU_DLLIMPLEMENTATION \
 ))
 
-$(eval $(call gb_Library_use_external,cppu,boost_headers))
-
 $(eval $(call gb_Library_use_libraries,cppu,\
 	sal \
 	salhelper \
diff --git a/cppu/Library_log_uno_uno.mk b/cppu/Library_log_uno_uno.mk
index 92d287ea7192..dc8fbbb00afd 100644
--- a/cppu/Library_log_uno_uno.mk
+++ b/cppu/Library_log_uno_uno.mk
@@ -10,8 +10,6 @@
 
 $(eval $(call gb_Library_Library,log_uno_uno))
 
-$(eval $(call gb_Library_use_external,log_uno_uno,boost_headers))
-
 $(eval $(call gb_Library_use_udk_api,log_uno_uno))
 
 $(eval $(call gb_Library_use_libraries,log_uno_uno,\
diff --git a/helpcompiler/Executable_HelpLinker.mk b/helpcompiler/Executable_HelpLinker.mk
index 2825aadf3b2e..96f739a8fee4 100644
--- a/helpcompiler/Executable_HelpLinker.mk
+++ b/helpcompiler/Executable_HelpLinker.mk
@@ -20,7 +20,6 @@ $(eval $(call gb_Executable_use_libraries,HelpLinker,\
 ))
 
 $(eval $(call gb_Executable_use_externals,HelpLinker,\
-    boost_headers \
     expat \
     libxslt \
     libxml2 \
diff --git a/helpcompiler/Library_helplinker.mk b/helpcompiler/Library_helplinker.mk
index cd45eb020277..9529295ecd58 100644
--- a/helpcompiler/Library_helplinker.mk
+++ b/helpcompiler/Library_helplinker.mk
@@ -31,7 +31,6 @@ $(eval $(call gb_Library_use_internal_api,helplinker,\
 
 
 $(eval $(call gb_Library_use_externals,helplinker,\
-    boost_headers \
     expat \
     libxslt \
     libxml2 \
diff --git a/hwpfilter/CppunitTest_hwpfilter_test_hwpfilter.mk b/hwpfilter/CppunitTest_hwpfilter_test_hwpfilter.mk
index b62abefd7a8a..a930abbaed8a 100644
--- a/hwpfilter/CppunitTest_hwpfilter_test_hwpfilter.mk
+++ b/hwpfilter/CppunitTest_hwpfilter_test_hwpfilter.mk
@@ -9,8 +9,6 @@
 
 $(eval $(call gb_CppunitTest_CppunitTest,hwpfilter_test_hwpfilter))
 
-$(eval $(call gb_CppunitTest_use_external,hwpfilter_test_hwpfilter,boost_headers))
-
 $(eval $(call gb_CppunitTest_add_exception_objects,hwpfilter_test_hwpfilter, \
     hwpfilter/qa/cppunit/test_hwpfilter \
 ))
diff --git a/hwpfilter/Library_hwp.mk b/hwpfilter/Library_hwp.mk
index f2419a8d8d6b..159770b78012 100644
--- a/hwpfilter/Library_hwp.mk
+++ b/hwpfilter/Library_hwp.mk
@@ -21,7 +21,6 @@ $(eval $(call gb_Library_use_libraries,hwp,\
 ))
 
 $(eval $(call gb_Library_use_externals,hwp,\
-	boost_headers \
 	zlib \
 ))
 
diff --git a/i18nlangtag/CppunitTest_i18nlangtag_test_languagetag.mk b/i18nlangtag/CppunitTest_i18nlangtag_test_languagetag.mk
index 271aa7f21558..f83da8ebcd6f 100644
--- a/i18nlangtag/CppunitTest_i18nlangtag_test_languagetag.mk
+++ b/i18nlangtag/CppunitTest_i18nlangtag_test_languagetag.mk
@@ -9,8 +9,6 @@
 
 $(eval $(call gb_CppunitTest_CppunitTest,i18nlangtag_test_languagetag))
 
-$(eval $(call gb_CppunitTest_use_external,i18nlangtag_test_languagetag,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_sdk_api,i18nlangtag_test_languagetag))
 
 $(eval $(call gb_CppunitTest_use_libraries,i18nlangtag_test_languagetag,\
diff --git a/i18nlangtag/Library_i18nlangtag.mk b/i18nlangtag/Library_i18nlangtag.mk
index a68a5940344d..c1dae1706d6b 100644
--- a/i18nlangtag/Library_i18nlangtag.mk
+++ b/i18nlangtag/Library_i18nlangtag.mk
@@ -20,7 +20,6 @@ $(eval $(call gb_Library_use_libraries,i18nlangtag,\
 ))
 
 $(eval $(call gb_Library_use_externals,i18nlangtag,\
-	boost_headers \
 	icu_headers \
 	icuuc \
 ))
diff --git a/i18npool/CppunitTest_i18npool_defaultnumberingprovider.mk b/i18npool/CppunitTest_i18npool_defaultnumberingprovider.mk
index 421affb90b35..562cb8d68b02 100644
--- a/i18npool/CppunitTest_i18npool_defaultnumberingprovider.mk
+++ b/i18npool/CppunitTest_i18npool_defaultnumberingprovider.mk
@@ -11,10 +11,6 @@
 
 $(eval $(call gb_CppunitTest_CppunitTest,i18npool_defaultnumberingprovider))
 
-$(eval $(call gb_CppunitTest_use_externals,i18npool_defaultnumberingprovider,\
-	boost_headers \
-))
-
 $(eval $(call gb_CppunitTest_add_exception_objects,i18npool_defaultnumberingprovider, \
     i18npool/qa/cppunit/test_defaultnumberingprovider \
 ))
diff --git a/i18npool/Library_i18npool.mk b/i18npool/Library_i18npool.mk
index 8971eb388921..bd945d9329dc 100644
--- a/i18npool/Library_i18npool.mk
+++ b/i18npool/Library_i18npool.mk
@@ -36,7 +36,6 @@ $(eval $(call gb_Library_use_libraries,i18npool,\
 ))
 
 $(eval $(call gb_Library_use_externals,i18npool,\
-	boost_headers \
 	icui18n \
 	icuuc \
 	icu_headers \
diff --git a/i18nutil/Library_i18nutil.mk b/i18nutil/Library_i18nutil.mk
index 2a255e41d2b2..fd6518a4173f 100644
--- a/i18nutil/Library_i18nutil.mk
+++ b/i18nutil/Library_i18nutil.mk
@@ -19,7 +19,6 @@
 $(eval $(call gb_Library_Library,i18nutil))
 
 $(eval $(call gb_Library_use_externals,i18nutil,\
-	boost_headers \
 	icu_headers \
 	icui18n \
 	icuuc \
diff --git a/io/Library_io.mk b/io/Library_io.mk
index d2c60b303984..2b66a56abf90 100644
--- a/io/Library_io.mk
+++ b/io/Library_io.mk
@@ -9,8 +9,6 @@
 
 $(eval $(call gb_Library_Library,io))
 
-$(eval $(call gb_Library_use_external,io,boost_headers))
-
 $(eval $(call gb_Library_use_udk_api,io))
 
 $(eval $(call gb_Library_use_libraries,io,\
diff --git a/jvmfwk/Library_jvmfwk.mk b/jvmfwk/Library_jvmfwk.mk
index 64a6b9d8e396..aae288e30b6a 100644
--- a/jvmfwk/Library_jvmfwk.mk
+++ b/jvmfwk/Library_jvmfwk.mk
@@ -48,7 +48,6 @@ $(eval $(call gb_Library_use_system_win32_libs,jvmfwk,\
 endif
 
 $(eval $(call gb_Library_use_externals,jvmfwk,\
-    boost_headers \
     libxml2 \
     valgrind \
 ))
diff --git a/o3tl/CppunitTest_o3tl_tests.mk b/o3tl/CppunitTest_o3tl_tests.mk
index 4f7ab02b1da1..2a5440736033 100644
--- a/o3tl/CppunitTest_o3tl_tests.mk
+++ b/o3tl/CppunitTest_o3tl_tests.mk
@@ -19,8 +19,6 @@
 
 $(eval $(call gb_CppunitTest_CppunitTest,o3tl_tests))
 
-$(eval $(call gb_CppunitTest_use_external,o3tl_tests,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_libraries,o3tl_tests,\
 	sal \
 ))
diff --git a/opencl/Library_opencl.mk b/opencl/Library_opencl.mk
index 213c600637c2..204cba064ee4 100644
--- a/opencl/Library_opencl.mk
+++ b/opencl/Library_opencl.mk
@@ -19,7 +19,6 @@ $(eval $(call gb_Library_add_defs,opencl,\
 ))
 
 $(eval $(call gb_Library_use_externals,opencl,\
-    boost_headers \
     clew \
     icu_headers \
     icui18n \
diff --git a/package/Library_package2.mk b/package/Library_package2.mk
index 2ddbc31caf85..16ef09af5f6d 100644
--- a/package/Library_package2.mk
+++ b/package/Library_package2.mk
@@ -41,7 +41,6 @@ $(eval $(call gb_Library_use_libraries,package2,\
 ))
 
 $(eval $(call gb_Library_use_externals,package2,\
-	boost_headers \
 	argon2 \
 	zlib \
 ))
diff --git a/pyuno/Library_pythonloader.mk b/pyuno/Library_pythonloader.mk
index 2f1e69cfaef8..bbfe5469da62 100644
--- a/pyuno/Library_pythonloader.mk
+++ b/pyuno/Library_pythonloader.mk
@@ -34,7 +34,6 @@ $(eval $(call gb_Library_use_libraries,pythonloader,\
 ))
 
 $(eval $(call gb_Library_use_externals,pythonloader,\
-    boost_headers \
     python \
 ))
 
diff --git a/pyuno/Library_pyuno.mk b/pyuno/Library_pyuno.mk
index 49c5b9104e16..65b3855e49b7 100644
--- a/pyuno/Library_pyuno.mk
+++ b/pyuno/Library_pyuno.mk
@@ -31,7 +31,6 @@ $(eval $(call gb_Library_use_libraries,pyuno,\
 ))
 
 $(eval $(call gb_Library_use_externals,pyuno,\
-	boost_headers \
     python \
 ))
 
diff --git a/registry/Library_reg.mk b/registry/Library_reg.mk
index d17b1196990a..8b36aec893ca 100644
--- a/registry/Library_reg.mk
+++ b/registry/Library_reg.mk
@@ -18,8 +18,6 @@ $(eval $(call gb_Library_set_include,reg, \
     -I$(SRCDIR)/registry/inc \
 ))
 
-$(eval $(call gb_Library_use_external,reg,boost_headers))
-
 $(eval $(call gb_Library_use_libraries,reg,\
 	sal \
 	store \
diff --git a/salhelper/CppunitTest_salhelper_testapi.mk b/salhelper/CppunitTest_salhelper_testapi.mk
index abcb5bc02616..862507beaade 100644
--- a/salhelper/CppunitTest_salhelper_testapi.mk
+++ b/salhelper/CppunitTest_salhelper_testapi.mk
@@ -20,8 +20,6 @@ $(eval $(call gb_CppunitTest_add_exception_objects,salhelper_testapi,\
     salhelper/qa/timer \
 ))
 
-$(eval $(call gb_CppunitTest_use_external,salhelper_testapi,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_libraries,salhelper_testapi,\
     salhelper \
     sal \
diff --git a/sax/CppunitTest_sax.mk b/sax/CppunitTest_sax.mk
index 282ba2414e41..6b38222d36cd 100644
--- a/sax/CppunitTest_sax.mk
+++ b/sax/CppunitTest_sax.mk
@@ -11,8 +11,6 @@ $(eval $(call gb_CppunitTest_CppunitTest,sax))
 
 $(eval $(call gb_CppunitTest_use_sdk_api,sax))
 
-$(eval $(call gb_CppunitTest_use_external,sax,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_common_precompiled_header,sax))
 
 $(eval $(call gb_CppunitTest_use_libraries,sax, \
diff --git a/sax/CppunitTest_sax_parser.mk b/sax/CppunitTest_sax_parser.mk
index 27dfc15fed39..9238f97e3197 100644
--- a/sax/CppunitTest_sax_parser.mk
+++ b/sax/CppunitTest_sax_parser.mk
@@ -25,10 +25,6 @@ $(eval $(call gb_CppunitTest_use_libraries,sax_parser, \
 	test \
 ))
 
-$(eval $(call gb_CppunitTest_use_externals,sax_parser, \
-	boost_headers \
-))
-
 $(eval $(call gb_CppunitTest_use_sdk_api,sax_parser))
 
 $(eval $(call gb_CppunitTest_use_ure,sax_parser))
diff --git a/sax/CppunitTest_sax_xmlimport.mk b/sax/CppunitTest_sax_xmlimport.mk
index 2e107363294b..959d392fb4c1 100644
--- a/sax/CppunitTest_sax_xmlimport.mk
+++ b/sax/CppunitTest_sax_xmlimport.mk
@@ -32,10 +32,6 @@ $(eval $(call gb_CppunitTest_use_api,sax_xmlimport,\
     udkapi \
 ))
 
-$(eval $(call gb_CppunitTest_use_externals,sax_xmlimport, \
-	boost_headers \
-))
-
 $(eval $(call gb_CppunitTest_use_ure,sax_xmlimport))
 $(eval $(call gb_CppunitTest_use_vcl,sax_xmlimport))
 
diff --git a/sax/Library_sax.mk b/sax/Library_sax.mk
index 97389a2bb06d..f65fcf05b669 100644
--- a/sax/Library_sax.mk
+++ b/sax/Library_sax.mk
@@ -16,14 +16,11 @@ $(eval $(call gb_Library_set_include,sax,\
 	$$(INCLUDE) \
 ))
 
-$(eval $(call gb_Library_use_external,sax,boost_headers))
-
 $(eval $(call gb_Library_use_common_precompiled_header,sax))
 
 $(eval $(call gb_Library_use_sdk_api,sax))
 
 $(eval $(call gb_Library_use_externals,sax,\
-	boost_headers \
 	libxml2 \
 	expat \
 ))
diff --git a/scaddins/Library_analysis.mk b/scaddins/Library_analysis.mk
index b1a97049098b..146b98350fa5 100644
--- a/scaddins/Library_analysis.mk
+++ b/scaddins/Library_analysis.mk
@@ -26,8 +26,6 @@ $(eval $(call gb_Library_set_include,analysis,\
     -I$(SRCDIR)/scaddins/inc \
 ))
 
-$(eval $(call gb_Library_use_external,analysis,boost_headers))
-
 $(eval $(call gb_Library_use_common_precompiled_header,analysis))
 
 $(eval $(call gb_Library_use_internal_comprehensive_api,analysis,\
diff --git a/scaddins/Library_date.mk b/scaddins/Library_date.mk
index b39cfeeb8287..75259e95ecef 100644
--- a/scaddins/Library_date.mk
+++ b/scaddins/Library_date.mk
@@ -26,8 +26,6 @@ $(eval $(call gb_Library_set_include,date,\
     -I$(SRCDIR)/scaddins/inc \
 ))
 
-$(eval $(call gb_Library_use_external,date,boost_headers))
-
 $(eval $(call gb_Library_use_common_precompiled_header,date))
 
 $(eval $(call gb_Library_use_internal_comprehensive_api,date,\
diff --git a/scaddins/Library_pricing.mk b/scaddins/Library_pricing.mk
index 1d1626ba5ede..8c517d53ad5b 100644
--- a/scaddins/Library_pricing.mk
+++ b/scaddins/Library_pricing.mk
@@ -26,8 +26,6 @@ $(eval $(call gb_Library_set_include,pricing,\
     -I$(SRCDIR)/scaddins/inc \
 ))
 
-$(eval $(call gb_Library_use_external,pricing,boost_headers))
-
 $(eval $(call gb_Library_use_common_precompiled_header,pricing))
 
 $(eval $(call gb_Library_use_internal_comprehensive_api,pricing,\
diff --git a/sccomp/CppunitTest_sccomp_solver.mk b/sccomp/CppunitTest_sccomp_solver.mk
index d634fb7d93fc..818b27e5a0a6 100644
--- a/sccomp/CppunitTest_sccomp_solver.mk
+++ b/sccomp/CppunitTest_sccomp_solver.mk
@@ -13,10 +13,6 @@ $(eval $(call gb_CppunitTest_add_exception_objects,sccomp_solver,\
 	sccomp/qa/unit/solver \
 ))
 
-$(eval $(call gb_CppunitTest_use_externals,sccomp_solver,\
-	boost_headers \
-))
-
 $(eval $(call gb_CppunitTest_add_defs,sccomp_solver,\
 	$(if $(ENABLE_COINMP), -DENABLE_COINMP) \
 	$(if $(ENABLE_LPSOLVE), -DENABLE_LPSOLVE) \
diff --git a/sccomp/CppunitTest_sccomp_swarmsolvertest.mk b/sccomp/CppunitTest_sccomp_swarmsolvertest.mk
index 38cc3fa39521..c86c0f6fc7d8 100644
--- a/sccomp/CppunitTest_sccomp_swarmsolvertest.mk
+++ b/sccomp/CppunitTest_sccomp_swarmsolvertest.mk
@@ -13,10 +13,6 @@ $(eval $(call gb_CppunitTest_add_exception_objects,sccomp_swarmsolvertest,\
 	sccomp/qa/unit/SwarmSolverTest \
 ))
 
-$(eval $(call gb_CppunitTest_use_externals,sccomp_swarmsolvertest,\
-	boost_headers \
-))
-
 $(eval $(call gb_CppunitTest_use_libraries,sccomp_swarmsolvertest,\
 	basegfx \
 	comphelper \
diff --git a/sccomp/Library_solver.mk b/sccomp/Library_solver.mk
index 933c0f7b6e38..1eeac011f2da 100644
--- a/sccomp/Library_solver.mk
+++ b/sccomp/Library_solver.mk
@@ -43,7 +43,6 @@ $(eval $(call gb_Library_use_libraries,solver,\
 ))
 
 $(eval $(call gb_Library_use_externals,solver,\
-	boost_headers \
 	coinmp \
 	lpsolve \
 ))
diff --git a/sot/Library_sot.mk b/sot/Library_sot.mk
index 61caabac5a04..2d80c9429337 100644
--- a/sot/Library_sot.mk
+++ b/sot/Library_sot.mk
@@ -21,8 +21,6 @@ $(eval $(call gb_Library_Library,sot))
 
 $(eval $(call gb_Library_set_componentfile,sot,sot/util/sot,services))
 
-$(eval $(call gb_Library_use_external,sot,boost_headers))
-
 $(eval $(call gb_Library_use_sdk_api,sot))
 
 $(eval $(call gb_Library_add_defs,sot,\
diff --git a/store/Library_store.mk b/store/Library_store.mk
index fe90755e6ba3..b419f6fec809 100644
--- a/store/Library_store.mk
+++ b/store/Library_store.mk
@@ -9,8 +9,6 @@
 
 $(eval $(call gb_Library_Library,store))
 
-$(eval $(call gb_Library_use_external,store,boost_headers))
-
 $(eval $(call gb_Library_add_defs,store,\
 	-DSTORE_DLLIMPLEMENTATION \
 ))
diff --git a/unotools/CppunitTest_unotools_fontcvt.mk b/unotools/CppunitTest_unotools_fontcvt.mk
index 16236c16c5d1..f51fb6cc7ed2 100644
--- a/unotools/CppunitTest_unotools_fontcvt.mk
+++ b/unotools/CppunitTest_unotools_fontcvt.mk
@@ -9,8 +9,6 @@
 
 $(eval $(call gb_CppunitTest_CppunitTest,unotools_fontcvt))
 
-$(eval $(call gb_CppunitTest_use_external,unotools_fontcvt,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_sdk_api,unotools_fontcvt))
 
 $(eval $(call gb_CppunitTest_add_exception_objects,unotools_fontcvt, \
diff --git a/unotools/CppunitTest_unotools_fontdefs.mk b/unotools/CppunitTest_unotools_fontdefs.mk
index 5eada2084a65..85c48c2abb8d 100644
--- a/unotools/CppunitTest_unotools_fontdefs.mk
+++ b/unotools/CppunitTest_unotools_fontdefs.mk
@@ -9,8 +9,6 @@
 
 $(eval $(call gb_CppunitTest_CppunitTest,unotools_fontdefs))
 
-$(eval $(call gb_CppunitTest_use_external,unotools_fontdefs,boost_headers))
-
 $(eval $(call gb_CppunitTest_use_sdk_api,unotools_fontdefs))
 
 $(eval $(call gb_CppunitTest_add_exception_objects,unotools_fontdefs, \
diff --git a/xmlhelp/Library_ucpchelp1.mk b/xmlhelp/Library_ucpchelp1.mk
index 087a1da2deb6..16b730e72c85 100644
--- a/xmlhelp/Library_ucpchelp1.mk
+++ b/xmlhelp/Library_ucpchelp1.mk
@@ -23,7 +23,6 @@ $(eval $(call gb_Library_use_custom_headers,ucpchelp1, \
 $(eval $(call gb_Library_use_sdk_api,ucpchelp1))
 
 $(eval $(call gb_Library_use_externals,ucpchelp1,\
-	boost_headers \
 	clucene \
 	expat \
 	libxml2 \
diff --git a/xmlreader/Library_xmlreader.mk b/xmlreader/Library_xmlreader.mk
index f99d584749f6..c999379fe873 100644
--- a/xmlreader/Library_xmlreader.mk
+++ b/xmlreader/Library_xmlreader.mk
@@ -25,8 +25,6 @@ $(eval $(call gb_Library_add_defs,xmlreader,\
 
 $(eval $(call gb_Library_set_is_ure_library_or_dependency,xmlreader))
 
-$(eval $(call gb_Library_use_external,xmlreader,boost_headers))
-
 $(eval $(call gb_Library_use_libraries,xmlreader,\
     cppu \
 	sal \