testing/mblaze: overwrite CFLAGS

Also include a patch for an off-by-one error causing an access to
uninitialized memory which results in a crash when compiled with -Os.

testing/mblaze/0001-mgenmid-printb36-fix-off-by-one.patch

@@ -0,0 +1,29 @@
+From 6f99ef55a8bd75d99882078b50e3c7665106c514 Mon Sep 17 00:00:00 2001
+From: Leah Neukirchen <leah@vuxu.org>
+Date: Mon, 21 Aug 2017 19:40:00 +0200
+Subject: [PATCH] mgenmid: printb36: fix off-by-one
+
+Closes #73.
+---
+ mgenmid.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/mgenmid.c b/mgenmid.c
+index 36aa8c8..655df95 100644
+--- a/mgenmid.c
++++ b/mgenmid.c
+@@ -21,9 +21,10 @@ printb36(uint64_t x)
+ 
+ 	char outbuf[16];
+ 	char *o = outbuf + sizeof outbuf;
+-	*o = 0;
+ 
++	*--o = 0;
+ 	do { *--o = base36[x % 36]; } while (x /= 36);
++
+ 	fputs(o, stdout);
+ }
+ 
+-- 
+2.14.1
+

testing/mblaze/APKBUILD

@@ -2,7 +2,7 @@
 # Maintainer:
 pkgname=mblaze
 pkgver=0.2
-pkgrel=0
+pkgrel=1
 pkgdesc="Unix utilities to deal with Maildir"
 url="https://github.com/chneukirchen/mblaze"
 arch="all"
@@ -13,11 +13,12 @@ makedepends=""
 install=""
 subpackages="$pkgname-doc"
 options="!check"
-source="https://github.com/chneukirchen/$pkgname/releases/download/v$pkgver/$pkgname-$pkgver.tar.gz"
+source="https://github.com/chneukirchen/$pkgname/releases/download/v$pkgver/$pkgname-$pkgver.tar.gz
+	0001-mgenmid-printb36-fix-off-by-one.patch"
 builddir="$srcdir/$pkgname-$pkgver"
 
 build() {
-	make -C "$builddir"
+	make CFLAGS="$CFLAGS" -C "$builddir"
 }
 
 package() {
@@ -30,4 +31,5 @@ package() {
 		"$pkgdir"/usr/share/doc/$pkgname/
 }
 
-sha512sums="7bbe8285cd1453e5b79e0b4af7ef38e0a4d24aa3317530480be2a89554cae0afa47f18e159ee976930dcea95fd92e07ab534a57c98f8cef42c37f5dce709fa12  mblaze-0.2.tar.gz"
+sha512sums="7bbe8285cd1453e5b79e0b4af7ef38e0a4d24aa3317530480be2a89554cae0afa47f18e159ee976930dcea95fd92e07ab534a57c98f8cef42c37f5dce709fa12  mblaze-0.2.tar.gz
+4e4b6f870daf28cee16f3a2d7830ad92635ec071385157e0a9edb97019c1ecc84055f25d6d8432daa225bbecb69d11415568d289be29e5d1dd8922dcc1c619ac  0001-mgenmid-printb36-fix-off-by-one.patch"