libpam-google-authenticator: misc cleanups.

- Build with our {C,LD}FLAGS.
- Fix installation.
- Remove unnecessary rdeps and correct bdeps.

Close #754

srcpkgs/libpam-google-authenticator/template

@@ -1,10 +1,8 @@
 # Template file for 'google-authenticator'
 pkgname=libpam-google-authenticator
-version="1.0"
+version=1.0
 revision=1
-build_style=gnu-makefile
-depends="pam-libs>=1.1.8"
-makedepends="pam-devel>=1.1.8"
+makedepends="pam-devel"
 hostmakedepends="pkg-config"
 short_desc="Google's two-factor authentication project"
 maintainer="Sean R. Lang <srlang@ncsu.edu>"
@@ -12,3 +10,13 @@ license="Apache-2.0"
 homepage="https://google-authenticator.googlecode.com"
 distfiles="${homepage}/files/${pkgname}-${version}-source.tar.bz2"
 checksum=80426045d13ce7a2bf56c692ccfb1751cef3c7484752ad40738facf729264d4b
+
+do_build() {
+	make CC=$CC CFLAGS="$CFLAGS" LDFLAGS="$LDFLAGS" ${makejobs}
+}
+do_install() {
+	vbin google-authenticator
+	vinstall pam_google_authenticator.so 755 usr/lib/security
+	vdoc README
+	vdoc FILEFORMAT
+}