feat: add GNU Make 4.4.1 package definition

Full autotools build (./configure, make, make check, make install)
verified end-to-end — builds, installs, produces working binary.

examples/make.kap

@@ -0,0 +1,38 @@
+/*
+ * GNU Make — the build tool that builds everything else.
+ *
+ * This is the quintessential autotools package: ./configure, make, make install.
+ * If kappa can build this, it can build anything downstream.
+ *
+ * INIT-AGNOSTIC
+ * =============
+ * Make itself doesn't care about init systems — no service definitions,
+ * no boot requirements.  It's a pure build tool.
+ */
+package "make" {
+    const version = "4.4.1"
+    const source  = "https://ftp.gnu.org/gnu/make/make-${version}.tar.gz"
+    sha256 = "dd16fb1d67bfab79a72f5e8390735c49e3e8e70b4945a15ab1f81ddb78658fb3"
+    license = "GPL-3.0-or-later"
+
+    provides = ["make", "gmake"]
+
+    env {
+        CFLAGS  = "-O2"
+        CFLAGS += "-Wno-error"
+    }
+
+    build {
+        touch aclocal.m4 configure Makefile.in */Makefile.in
+        ./configure --prefix=${prefix}
+        make -j${jobs}
+    }
+
+    check {
+        make check
+    }
+
+    install {
+        make DESTDIR=${destdir} install
+    }
+}