* update libixion to 0.19.0-7

libixion/.SRCINFO

@@ -1,7 +1,7 @@
 pkgbase = libixion
 	pkgdesc = A general purpose formula parser & interpreter
 	pkgver = 0.19.0
-	pkgrel = 5
+	pkgrel = 7
 	url = https://gitlab.com/ixion/ixion/blob/master/README.md
 	arch = x86_64
 	arch = powerpc64le
@@ -17,6 +17,8 @@ pkgbase = libixion
 	depends = gcc-libs
 	depends = glibc
 	source = https://kohei.us/files/ixion/src/libixion-0.19.0.tar.xz
+	source = https://gitlab.com/ixion/ixion/-/commit/7b1df6fc.patch
 	sha256sums = b4864d7a55351a09adbe9be44e5c65b1d417e80e946c947951d0e8428b9dcd15
+	sha256sums = 2252cee824721c9b9ad46989f98c6d7d192d01635f74b0d9dac9072d86e599f2
 
 pkgname = libixion

libixion/PKGBUILD

@@ -4,16 +4,23 @@
 
 pkgname=libixion
 pkgver=0.19.0
-pkgrel=5
+pkgrel=7
 pkgdesc="A general purpose formula parser & interpreter"
 arch=(x86_64 powerpc64le powerpc64 powerpc riscv64)
 url="https://gitlab.com/ixion/ixion/blob/master/README.md"
 license=('custom')
 depends=('boost-libs' 'python' 'gcc-libs' 'glibc')
 makedepends=('boost' 'mdds' 'spdlog')
-source=("https://kohei.us/files/ixion/src/libixion-${pkgver}.tar.xz")
+source=("https://kohei.us/files/ixion/src/libixion-${pkgver}.tar.xz"
+         https://gitlab.com/ixion/ixion/-/commit/7b1df6fc.patch)
 # https://gitlab.com/ixion/ixion/-/releases
-sha256sums=('b4864d7a55351a09adbe9be44e5c65b1d417e80e946c947951d0e8428b9dcd15')
+sha256sums=('b4864d7a55351a09adbe9be44e5c65b1d417e80e946c947951d0e8428b9dcd15'
+            '2252cee824721c9b9ad46989f98c6d7d192d01635f74b0d9dac9072d86e599f2')
+
+prepare() {
+  # Fix build with -Werror=undef
+  patch -d $pkgname-$pkgver -p1 < 7b1df6fc.patch
+}
 
 build() {
   cd ${pkgname}-${pkgver}