lowdown: fix cross compilation and add patch I wrote earlier to respect

ldflags

closes #13019

srcpkgs/lowdown/files/configure.glibc

@@ -0,0 +1,24 @@
+HAVE_ARC4RANDOM=0
+HAVE_CAPSICUM=0
+HAVE_ERR=1
+HAVE_EXPLICIT_BZERO=1
+HAVE_GETPROGNAME=0
+HAVE_INFTIM=0
+HAVE_MD5=0
+HAVE_MEMMEM=1
+HAVE_MEMRCHR=1
+HAVE_MEMSET_S=0
+HAVE_PATH_MAX=1
+HAVE_PLEDGE=0
+HAVE_PROGRAM_INVOCATION_SHORT_NAME=1
+HAVE_REALLOCARRAY=0
+HAVE_RECALLOCARRAY=0
+HAVE_SANDBOX_INIT=0
+HAVE_SECCOMP_FILTER=1
+HAVE_SOCK_NONBLOCK=1
+HAVE_STRLCAT=0
+HAVE_STRLCPY=0
+HAVE_STRTONUM=0
+HAVE_SYSTRACE=0
+HAVE_ZLIB=0
+HAVE___PROGNAME=1

srcpkgs/lowdown/files/configure.musl

@@ -0,0 +1,24 @@
+HAVE_ARC4RANDOM=0
+HAVE_CAPSICUM=0
+HAVE_ERR=1
+HAVE_EXPLICIT_BZERO=0
+HAVE_GETPROGNAME=0
+HAVE_INFTIM=0
+HAVE_MD5=0
+HAVE_MEMMEM=1
+HAVE_MEMRCHR=1
+HAVE_MEMSET_S=0
+HAVE_PATH_MAX=1
+HAVE_PLEDGE=0
+HAVE_PROGRAM_INVOCATION_SHORT_NAME=1
+HAVE_REALLOCARRAY=0
+HAVE_RECALLOCARRAY=0
+HAVE_SANDBOX_INIT=0
+HAVE_SECCOMP_FILTER=1
+HAVE_SOCK_NONBLOCK=1
+HAVE_STRLCAT=1
+HAVE_STRLCPY=1
+HAVE_STRTONUM=0
+HAVE_SYSTRACE=0
+HAVE_ZLIB=0
+HAVE___PROGNAME=1

srcpkgs/lowdown/patches/ldflags.patch

@@ -0,0 +1,33 @@
+From 04a9e2f44d90f7b397716bb50d55e53e6ed8367c Mon Sep 17 00:00:00 2001
+From: Duncaen <mail@duncano.de>
+Date: Fri, 9 Mar 2018 18:53:12 +0100
+Subject: [PATCH] use LDFLAGS in Makefile
+
+---
+ Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index 9a124cc..0a422c3 100644
+--- Makefile
++++ Makefile
+@@ -62,7 +62,7 @@ installwww: www
+ 	install -m 0444 lowdown.tar.gz.sha512 $(WWWDIR)/snapshots
+ 
+ lowdown: liblowdown.a main.o
+-	$(CC) -o $@ main.o liblowdown.a -lm
++	$(CC) -o $@ main.o liblowdown.a $(LDFLAGS) -lm
+ 
+ lowdown-diff: lowdown
+ 	ln -f lowdown lowdown-diff
+--- configure.orig
++++ configure
+@@ -65,7 +65,7 @@
+ CFLAGS="${CFLAGS} -Wwrite-strings -Wno-unused-parameter"
+ LDADD=
+ CPPFLAGS=
+-LDFLAGS=
++LDFLAGS=`printf "all:\\n\\t@echo \\\$(LDFLAGS)\\n" | make -sf -`
+ PREFIX="/usr/local"
+ BINDIR=
+ SBINDIR=

srcpkgs/lowdown/template

@@ -1,7 +1,7 @@
 # Template file for 'lowdown'
 pkgname=lowdown
 version=0.3.1
-revision=1
+revision=2
 wrksrc="${pkgname}-VERSION_${version//./_}"
 configure_args="PREFIX=/usr MANDIR=/usr/share/man"
 build_style=configure
@@ -12,11 +12,14 @@ homepage="https://kristaps.bsd.lv/lowdown/"
 distfiles="https://github.com/kristapsdz/lowdown/archive/VERSION_${version//./_}.tar.gz"
 checksum=af1fe2904dd543e46ff2b19ccd601df053986f3913d5abf68ac9c62da50754ec
 
-pre_build() {
-	cat >> Makefile.configure <<-EOF
-		CFLAGS += ${CFLAGS}
-		LDFLAGS += ${LDFLAGS}
-	EOF
+pre_configure() {
+	local _libc=glibc
+	case "$XBPS_TARGET_MACHINE" in
+	*-musl) _libc=musl ;;
+	esac
+	if [ -n "$CROSS_BUILD" ]; then
+		cp "${FILESDIR}/configure.$_libc" configure.local
+	fi
 }
 
 post_install() {