scmpc: Fix implicit declaration of functions

audio/scmpc/Portfile

@@ -4,8 +4,12 @@ PortSystem      1.0
 PortGroup       bitbucket 1.0
 
 bitbucket.setup cmende scmpc 0.4.1
+revision        0
+checksums       rmd160  f30c5ea2dbcff560961ba7ae8daa83b267f6901a \
+                sha256  f89958dc0449f1dfbcbe81b453986812196dc86200153ac700cf606297c3fde3 \
+                size    88288
+
 categories      audio
-platforms       darwin
 license         GPL-2+
 maintainers     nomaintainer
 description     a client for MPD that submits your tracks to last.fm
@@ -14,16 +18,16 @@ long_description \
 
 bitbucket.tarball_from downloads
 use_bzip2       yes
-checksums       rmd160  f30c5ea2dbcff560961ba7ae8daa83b267f6901a \
-                sha256  f89958dc0449f1dfbcbe81b453986812196dc86200153ac700cf606297c3fde3
 
-depends_build   port:pkgconfig
+depends_build   path:bin/pkg-config:pkgconfig
 
 depends_lib     port:curl \
                 path:lib/pkgconfig/glib-2.0.pc:glib2 \
                 port:libconfuse \
                 port:libmpdclient
 
+patchfiles      implicit.patch
+
 notes "
 Please note that scmpc may have some strange behavior on macOS, possibly\
 relating to the cache file and SIGKILL. Please read the manpage before\

audio/scmpc/files/implicit.patch

@@ -0,0 +1,14 @@
+Fix:
+
+error: implicitly declaring library function 'strdup' with type 'char *(const char *)' [-Werror,-Wimplicit-function-declaration]
+--- Makefile.in.orig	2013-03-04 07:34:37.000000000 -0600
++++ Makefile.in	2024-07-15 06:01:03.000000000 -0500
+@@ -149,7 +149,7 @@
+ CFLAGS = @CFLAGS@
+ CPPFLAGS = @CPPFLAGS@
+ CYGPATH_W = @CYGPATH_W@
+-DEFS = @DEFS@ -DSYSCONFDIR=\"$(sysconfdir)\" -D_XOPEN_SOURCE=500
++DEFS = @DEFS@ -DSYSCONFDIR=\"$(sysconfdir)\" -D_XOPEN_SOURCE=600
+ DEPDIR = @DEPDIR@
+ ECHO_C = @ECHO_C@
+ ECHO_N = @ECHO_N@