diff --git a/app-vim/youcompleteme/youcompleteme-20241216.recipe b/app-vim/youcompleteme/youcompleteme-20241216.recipe
index 39a1f1b7e..6a014a5c9 100644
--- a/app-vim/youcompleteme/youcompleteme-20241216.recipe
+++ b/app-vim/youcompleteme/youcompleteme-20241216.recipe
@@ -18,7 +18,7 @@ etc.)."
 HOMEPAGE="https://ycm-core.github.io/YouCompleteMe/"
 COPYRIGHT="2015-2024 YouCompleteMe contributors"
 LICENSE="GNU GPL v3"
-REVISION="1"
+REVISION="2"
 gitRevURI="131b1827354871a4e984c1660b6af0fefca755c3"
 SOURCE_URI="https://github.com/ycm-core/YouCompleteMe/archive/$gitRevURI.zip"
 SOURCE_DIR="YouCompleteMe-$gitRevURI"
@@ -34,19 +34,18 @@ ARCHITECTURES="all !x86_gcc2"
 SECONDARY_ARCHITECTURES="x86"
 
 # Use these when updating the recipe for newer versions:
-CLANG_VERSION=16
+CLANG_VERSION=20
 PYTHON_VERSION=3.10
 pythonPackage=python${PYTHON_VERSION//.}
 VIM_VERSION=9.1
 
 PROVIDES="
 	youcompleteme$secondaryArchSuffix = $portVersion
-	lib:ycm_core.cpython_${pyVer}$secondaryArchSuffix
 	"
 
 REQUIRES="
 	haiku$secondaryArchSuffix
-	cmd:vim >= $VIM_VERSION # set this to == once vim uses compat on its provides.
+	cmd:vim >= $VIM_VERSION
 	bottle_$pythonPackage
 	certifi_$pythonPackage
 	frozendict_$pythonPackage
@@ -55,8 +54,11 @@ REQUIRES="
 	requests_$pythonPackage
 	waitress_$pythonPackage
 	watchdog_$pythonPackage
+	# "ycm_core.cpython-310.so" is linked against *a lot* of libabsl_* .so.
+	# just list the base one here for simplicity.
 	lib:libabsl_base$secondaryArchSuffix
-	lib:libclang$secondaryArchSuffix >= $CLANG_VERSION
+	lib:libclang$secondaryArchSuffix
+	lib:libpython$PYTHON_VERSION$secondaryArchSuffix
 	"
 
 BUILD_REQUIRES="
@@ -68,31 +70,28 @@ BUILD_REQUIRES="
 BUILD_PREREQUIRES="
 	cmd:cmake
 	cmd:gcc$secondaryArchSuffix
-	cmd:ninja
+	cmd:make
 	cmd:pkg_config$secondaryArchSuffix
 	"
 
 BUILD()
 {
-	mkdir -p ycm_build
-	mkdir -p $developLibDir
-	cd ycm_build
+	rm -rf ./third_party/ycmd
+	ln -sr $sourceDir2 ./third_party/ycmd
 
-	rm -rf ../third_party/ycmd
-	ln -s ../../../sources-2/ycmd-* ../third_party/ycmd
+	cmake -B build -S ./third_party/ycmd/cpp \
+		$cmakeDirArgs \
+		-DCMAKE_BUILD_TYPE=Release \
+		-DCMAKE_SKIP_RPATH=ON \
+		-DUSE_SYSTEM_LIBCLANG=ON \
+		-DUSE_SYSTEM_ABSEIL=ON
 
-	cmake -GNinja $cmakeDirArgs ../third_party/ycmd/cpp \
-		-DUSE_SYSTEM_LIBCLANG=ON -DUSE_SYSTEM_ABSEIL=ON \
-		-DPYTHON_INCLUDE_DIR=/system/develop/headers/python$PYTHON_VERSION \
-		-DCMAKE_BUILD_TYPE=Release
-		# This in theory should work, but doesn't, thus the need for $PATCHES_2.
-		# -DUSE_SYSTEM_LIBCLANG=1
-	ninja $jobArgs ycm_core
+	make -C build $jobArgs ycm_core
 }
 
 INSTALL()
 {
-	vimDir=vim${VIM_VERSION//.} # eg: vim91
+	vimDir=vim${VIM_VERSION//.} # ie: vim91
 
 	mkdir -p $dataDir/vim/$vimDir
 	cp -r autoload doc python plugin $dataDir/vim/$vimDir