From 34bfe1031798a617c2628b4f011320c2dc0b976e Mon Sep 17 00:00:00 2001
From: Oliver Jowett <oliver@mutability.co.uk>
Date: Wed, 17 Apr 2019 11:58:59 +0800
Subject: [PATCH] Rework use of pkg-config to work around librtlsdr packaging
 bugs in ubuntu disco

---
 Makefile | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/Makefile b/Makefile
index b4f6aaa..10388fe 100644
--- a/Makefile
+++ b/Makefile
@@ -15,16 +15,20 @@ ifeq ($(RTLSDR), yes)
 
   ifdef RTLSDR_PREFIX
     CPPFLAGS += -I$(RTLSDR_PREFIX)/include
-    LDFLAGS += -L$(RTLSDR_PREFIX)/lib
+    ifeq ($(STATIC), yes)
+      LIBS_SDR += -L$(RTLSDR_PREFIX)/lib -Wl,-Bstatic -lrtlsdr -Wl,-Bdynamic -lusb-1.0
+    else
+      LIBS_SDR += -L$(RTLSDR_PREFIX)/lib -lrtlsdr -lusb-1.0
+    endif
   else
     CFLAGS += $(shell pkg-config --cflags librtlsdr)
-    LDFLAGS += $(shell pkg-config --libs-only-L librtlsdr)
-  endif
-
-  ifeq ($(STATIC), yes)
-    LIBS_SDR += -Wl,-Bstatic -lrtlsdr -Wl,-Bdynamic -lusb-1.0
-  else
-    LIBS_SDR += -lrtlsdr -lusb-1.0
+    # some packaged .pc files are massively broken, try to handle it
+    RTLSDR_LFLAGS := $(shell pkg-config --libs-only-L librtlsdr)
+    ifeq ($(RTLSDR_LFLAGS),-L)
+      LIBS_SDR += $(shell pkg-config --libs-only-l --libs-only-other librtlsdr)
+    else
+      LIBS_SDR += $(shell pkg-config --libs librtlsdr)
+    endif
   endif
 endif