diff --git a/extra/genxrdpattern/.SRCINFO b/extra/genxrdpattern/.SRCINFO
new file mode 100644
index 000000000..f0698e5ac
--- /dev/null
+++ b/extra/genxrdpattern/.SRCINFO
@@ -0,0 +1,17 @@
+pkgbase = genxrdpattern
+	pkgdesc = Uses ObjCryst++ to generate a theoretical XRD pattern
+	pkgver = 1.1
+	pkgrel = 4
+	url = https://github.com/psavery/genXrdPattern
+	arch = x86_64
+	license = GPL-2.0-or-later
+	makedepends = cmake
+	makedepends = git
+	depends = gcc-libs
+	depends = glibc
+	source = git+https://github.com/psavery/genXrdPattern#tag=1.1-linux
+	source = https://github.com/psavery/genXrdPattern/releases/download/1.1-linux/objcryst.tgz
+	sha256sums = 02de8acb488a9a51e09882bf67dbbea89406a98c92bebdc1de66cf2aad74cc91
+	sha256sums = 5523eae9937388260b3e491a1a11a443ab00a0961318ec92eee08f9366a0953f
+
+pkgname = genxrdpattern
diff --git a/extra/genxrdpattern/.nvchecker.toml b/extra/genxrdpattern/.nvchecker.toml
new file mode 100644
index 000000000..9d650c532
--- /dev/null
+++ b/extra/genxrdpattern/.nvchecker.toml
@@ -0,0 +1,4 @@
+[genxrdpattern]
+source = 'github'
+github = 'psavery/genXrdPattern'
+use_max_tag = true
diff --git a/extra/genxrdpattern/PKGBUILD b/extra/genxrdpattern/PKGBUILD
index baa120342..5bb6b2c9f 100644
--- a/extra/genxrdpattern/PKGBUILD
+++ b/extra/genxrdpattern/PKGBUILD
@@ -5,24 +5,28 @@
 
 pkgname=genxrdpattern
 pkgver=1.1
-pkgrel=3
+pkgrel=4
 pkgdesc='Uses ObjCryst++ to generate a theoretical XRD pattern'
 arch=(x86_64)
 url='https://github.com/psavery/genXrdPattern'
-license=(GPL)
-depends=(gcc-libs)
-makedepends=(cmake)
-source=(https://github.com/psavery/genXrdPattern/archive/$pkgver-linux/$pkgname-$pkgver.tar.gz
+license=(GPL-2.0-or-later)
+depends=(gcc-libs
+         glibc)
+makedepends=(cmake
+             git)
+source=(git+https://github.com/psavery/genXrdPattern#tag=$pkgver-linux
         https://github.com/psavery/genXrdPattern/releases/download/$pkgver-linux/objcryst.tgz)
-sha256sums=('9bc01dbf637d6520d8e2f5743bb1b46f8319432af5ce2d2a484a36615c1586d3'
+sha256sums=('02de8acb488a9a51e09882bf67dbbea89406a98c92bebdc1de66cf2aad74cc91'
             '5523eae9937388260b3e491a1a11a443ab00a0961318ec92eee08f9366a0953f')
 
 prepare() {
   sed -e 's|/user/psavery/src/objcryst/Fox/src|.|g' -i objcryst/Fox/src/Fox.dep
   sed -e 's|-march=native||' -i objcryst/ObjCryst/*.mak # Don't use -march=native
   sed -e 's|set(CMAKE_EXE_LINKER_FLAGS \"-static\")|set(CMAKE_EXE_LINKER_FLAGS "$ENV{LDFLAGS}")|' \
-    -i genXrdPattern-$pkgver-linux/CMakeLists.txt # Honor system LDFLAGS
+    -i genXrdPattern/CMakeLists.txt # Honor system LDFLAGS
   sed -e 's/indx > 0/*indx > 0/' -i objcryst/newmat/newmat6.cpp
+  sed -e "s|CPPFLAGS = -w -ffast-math.*|CPPFLAGS = ${CXXFLAGS}|" -i objcryst/ObjCryst/*.mak # Honor system CFLAGS
+  sed -e "s|CXXFLAGS = -O2 -Wall|CXXFLAGS = ${CXXFLAGS}|" -i objcryst/{cctbx/gnu.mak,newmat/nm_gnu.mak}
 }
 
 build() {
@@ -30,7 +34,7 @@ build() {
   make Fox-nogui shared=0 sse=0 -j1
 
   cd "$srcdir"
-  cmake -B build -S genXrdPattern-$pkgver-linux \
+  cmake -B build -S genXrdPattern \
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DObjCryst_ROOT="$srcdir"/objcryst
   cmake --build build