Extra warnings

APKBUILD

@@ -0,0 +1,29 @@
+# Maintainer: Imbus <imbus64@protonmail.com>
+pkgname=libhash
+pkgver=0.1.2
+pkgrel=0
+pkgdesc="Various hash functions in C"
+url="https://git.silversoft.se/Imbus/libhash"
+arch="all"
+license="MIT"
+makedepends="gcc make"
+checkdepends=""
+subpackages="$pkgname-static $pkgname-dev"
+source="$pkgname-$pkgver.tar.gz::$url/archive/v$pkgver.tar.gz"
+builddir="$srcdir/$pkgname"
+
+build() {
+	make
+}
+
+check() {
+	make test
+}
+
+package() {
+	PREFIX="$pkgdir/usr" make install
+}
+
+sha512sums="
+2e7d02e96f26569a2ae2e29d8644fa93e08229fbb288a67418c986d928cfa3d93e16793ca20cc9a39cbc74e5842395a37923f843fba2215350db350a307ff080  libhash-0.1.2.tar.gz
+"

Makefile

@@ -1,5 +1,5 @@
 CC ?= gcc
-CFLAGS ?= -Wall -fPIC -Ihash -O2
+CFLAGS ?= -Wall -Wextra -fPIC -Ihash -O2
 AR ?= ar
 ARFLAGS ?= rcs