diff --git a/.builds/archlinux.yml b/.builds/archlinux.yml
index 91b1184..530279a 100644
--- a/.builds/archlinux.yml
+++ b/.builds/archlinux.yml
@@ -8,11 +8,13 @@ packages:
   - cairo
   - lv2lint
   - lv2
+  - libsndfile
 sources:
   - https://git.sr.ht/~alextee/zplugins
 tasks:
   - setup: |
       cd zplugins
+      cd ext/Soundpipe && CC=gcc make && cd ../..
       meson build
   - build: |
       cd zplugins
diff --git a/.builds/debian.yml b/.builds/debian.yml
index ff5b7f6..83eef04 100644
--- a/.builds/debian.yml
+++ b/.builds/debian.yml
@@ -7,12 +7,16 @@ packages:
   - libx11-dev
   - libcairo2-dev
   - lv2-dev
+  - libsndfile1-dev
+  - guile-2.0
 sources:
   - https://git.sr.ht/~alextee/zplugins
+  - https://github.com/mesonbuild/meson
 tasks:
   - setup: |
       cd zplugins
-      meson build
+      cd ext/Soundpipe && CC=gcc make && cd ../..
+      ../meson/meson.py build
   - build: |
       cd zplugins
       ninja -C build
diff --git a/.builds/fedora.yml b/.builds/fedora.yml
index 093d63e..0c055a0 100644
--- a/.builds/fedora.yml
+++ b/.builds/fedora.yml
@@ -11,12 +11,16 @@ packages:
   - cairo-devel
   - librsvg2-devel
   - lv2-devel
+  - libsndfile-devel
+  - guile
 sources:
   - https://git.sr.ht/~alextee/zplugins
+  - https://github.com/mesonbuild/meson
 tasks:
   - setup: |
       cd zplugins
-      meson build
+      cd ext/Soundpipe && CC=gcc make && cd ../..
+      ../meson/meson.py build
   - build: |
       cd zplugins
       ninja -C build
diff --git a/.builds/freebsd.yml b/.builds/freebsd.yml
index e3296bf..e562db0 100644
--- a/.builds/freebsd.yml
+++ b/.builds/freebsd.yml
@@ -9,11 +9,14 @@ packages:
   - librsvg2
   - lv2lint
   - lv2
+  - libsndfile
+  - guile
 sources:
   - https://git.sr.ht/~alextee/zplugins
 tasks:
   - setup: |
       cd zplugins
+      cd ext/Soundpipe && CC=gcc make && cd ../..
       meson build
   - build: |
       cd zplugins
diff --git a/.gitattributes b/.gitattributes
index 26a33ae..1892f25 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -7,3 +7,5 @@
 
 # add vendored paths
 ext/** linguist-vendored
+
+**/*.h linguist-language=C