flashrom: fix build for < 10.7

sysutils/flashrom/Portfile

@@ -2,6 +2,10 @@
 
 PortSystem          1.0
 PortGroup           compiler_blacklist_versions 1.0
+PortGroup           legacysupport 1.1
+
+# strndup
+legacysupport.newest_darwin_requires_legacy 10
 
 name                flashrom
 version             1.3.0
@@ -32,9 +36,9 @@ revision            3
 # which is also adding fixes for 10.5 adn 10.6.
 #
 # This fix is sufficient for 10.7-10.12, and a NOP on 10.13+.
-compiler.blacklist      *gcc* {clang < 1000}
+compiler.blacklist  *gcc-4.* {clang < 1000}
 
-depends_build       port:pkgconfig
+depends_build       path:bin/pkg-config:pkgconfig
 
 # NOTE: The build procedure tests for pci.h and libpci, even though all
 # programmers that would use libpci are disabled in this build.  Thus,
@@ -46,7 +50,9 @@ depends_lib         port:libftdi1 \
 use_configure       no
 build.args-append   CC=${configure.cc} \
                     CXX=${configure.cxx} \
-                    CPP=${configure.cpp}
+                    CPP=${configure.cpp} \
+                    CFLAGS="${configure.cflags} [get_canonical_archflags cc]" \
+                    LDFLAGS="${configure.ldflags} [get_canonical_archflags ld]"
 
 build.env-append    CONFIG_ENABLE_LIBPCI_PROGRAMMERS=0 \
                     CONFIG_GFXNVIDIA=0 \